| NOVATEK MICROELECTRONICS CORP. Patent applications |
| Patent application number | Title | Published |
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| 20120133632 | OPERATIONAL AMPLIFIER AND DISPLAY DRIVING CIRCUIT USING THE SAME - An operation amplifier, coupled to a control unit, includes: a differential input pair, coupled to an input signal and an output signal; a bias current source, couple to the differential input pair; an output stage, coupled to the bias current source; and a clamp circuit, coupled to the output stage. In discharge, when the control circuit is temporarily short circuit, an internal charge share inside the operational amplifier transiently lowers a first node voltage of the output stage and the clamp circuit pulls high the first node voltage of the output stage. In charge, when the control circuit is temporarily short circuit, an internal charge share inside the operational amplifier transiently pulls high a second node voltage of the output stage and the clamp circuit pulls low the second node voltage of the output stage. | 05-31-2012 |
| 20120133629 | DRIVING APPARATUS AND DISPLAY PANEL - A driving apparatus and a display panel are provided. The display panel includes M*2N pixels, N data driving units, 2M scan lines and 2N data lines. The M*2N pixels are arranged as an M*2N matrix. M and N are positive integers. Each scan line is electrically coupled to N pixels in the same row. Each data driving unit is electrically coupled to two data lines that are not adjacent to each other. | 05-31-2012 |
| 20120126616 | REFERENCE VOLTAGE GENERATION CIRCUIT AND METHOD - A reference voltage generation circuit includes: a bandgap reference circuit, generating a plurality of initial currents with different temperature coefficients; a base voltage generation circuit, combining the initial current into a combined current, and converting the combined current into one or more base voltages; a bias current source circuit, generating one or more bias currents based on at least one of the initial currents; and one or more regulating output circuit, each converting a respective one of the one or more bias currents into an increment voltage and adding the increment voltage to the base voltage to generate a respective output voltage. Each output voltage may have its respective temperature coefficient. | 05-24-2012 |
| 20120120129 | DISPLAY CONTROLLER DRIVER AND METHOD FOR TESTING THE SAME - A display controller driver and a testing method therewith are provided. The display controller driver includes a timing control circuit, an image data memory, a data line driving circuit and a scan line driving circuit. The testing method includes controlling the scan line driving circuit by a control signal in a test operation mode, wherein the control signal is generated by an external test platform. The scan line driving circuit is tested and measured in accordance with a test pattern of the control signal. | 05-17-2012 |
| 20120120083 | DISPLAY APPARATUS, AND DISPLAY CONTROLLER AND OPERATING METHOD THEREOF - A display apparatus, and a display controller and an operating method thereof are provided. The display controller includes a controller, a buffer, and a compression/decompression unit. The controller receives an original frame from a host. The controller controls a display module to display the original frame provided by the host in a non-still frame mode. The compression/decompression unit is coupled between the buffer and the controller. The controller compresses the original frame to the buffer through the compression/decompression unit. If the controller operates in a still frame mode, the controller decompresses a compressed frame in the buffer to obtain a decompressed frame through the compression/decompression unit, and controls the display module to display the decompressed frame. | 05-17-2012 |
| 20120119834 | AMPLIFIER CIRCUIT WITH OVERSHOOT SUPPRESSION - An amplifier circuit with overshoot suppress scheme including an input amplifier, an output amplifier, and a diode is provided. A first and a second input ends of the output amplifier are coupled to a differential output pair of the input amplifier. The diode is coupled between an output end and the first input end of the output amplifier. When the voltage difference between the output and the input ends of the output amplifier is greater then the barrier voltage of the diode, the diode is turned on, so that the output end of the output amplifier is coupled to the input end of the output amplifier. In the transient state, it rapidly smoothes the overshoot signal. In the steady state, the diode is cut off to maintain the normal operation of the operational amplifier. | 05-17-2012 |
| 20120113045 | TOUCH CONTROLLER FOR TOUCH-SENSING DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A driving method adapted to a touch-sensing display apparatus is provided. The touch-sensing display apparatus includes a display panel and a touch panel. The driving method includes following steps. I scan signals are sequentially sent to drive the display panel to receive a plurality of data signals. M driving signals are sequentially sent to drive the touch panel to generate a plurality of sensing signals during a sensing period. The m | 05-10-2012 |
| 20120112304 | IMAGE SENSOR - An image sensor including a substrate, a deep well layer, multiple first sensing units, second sensing units and third sensing units is provided. The first, the second and the third sensing units are located between a first surface and the deep well layer. A ratio between an area of a part of the deep well layer under each first sensing unit and an area of each first sensing unit is a first area ratio. A ratio between an area of a part of the deep well layer under each second sensing unit and an area of each second sensing unit is a second area ratio. A ratio between an area of a part of the deep well layer under each third sensing unit and an area of each third sensing unit is a third area ratio. The first area ratio is greater than the second and the third area ratios. | 05-10-2012 |
| 20120105366 | POSITIONING ALGORITHM FOR EDGE PORTION OF TOUCH PANEL AND POSITIONING SYSTEM USING THE SAME - A positioning algorithm for edge portion of touch panel is provided. Dummy sensing lines surrounding a touch panel are provided. The x-axis and y-axis coordinate ranges of x-axis and y-axis sensing lines of the touch panel are determined. When the touch panel is touched, an x-axis sensing line, a y-axis sensing line, and a dummy sensing capacitance generated by the dummy sensing lines are located. Whether the corresponding x-axis sensing capacitance of the x-axis sensing line is smaller than or equal to the x-axis dummy sensing capacitance is determined. If so, an x-axis coordinate value is obtained according to the x-axis sensing capacitance and the dummy sensing capacitance. Whether the corresponding y-axis sensing capacitance of the y-axis sensing line is smaller than or equal to y-axis dummy sensing capacitance is determined. If so, a y-axis coordinate value is obtained according to the y-axis sensing capacitance and the dummy sensing capacitance. | 05-03-2012 |
| 20120104963 | LIGHT SOURCE APPARATUS AND LIGHT SOURCE ADJUSTING MODULE - A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source. | 05-03-2012 |
| 20120098759 | COORDINATE ALGORITHM OF TOUCH PANEL - A coordinate algorithm of a touch panel is provided, in which the touch panel includes a plurality of first-direction sensing lines and a plurality of second-direction sensing lines. The coordinate algorithm of a touch panel includes following steps. A first edge coordinate is obtained. A first coordinate compensation parameter is defined. The first edge coordinate is taken as a first base coordinate, and the first base coordinate is adjusted according to the first coordinate compensation parameter to obtain a first interpolation coordinate when an edge of the touch panel is touched. | 04-26-2012 |
| 20120086858 | DISPLAY AND MULTI-VIEW DISPLAYING SWITCH METHOD THEREOF - A multi-view displaying switch method of a display includes the following steps. The display receives multiple channel signals, and captures multiple corresponding static images from the channel signals. The display displays the static images in a first multi-view pattern, and displays one multi-view switch key on the display. When the multi-view switch key is triggered, the display switches the first multi-view pattern to a second multi-view pattern to display the static images. | 04-12-2012 |
| 20120086653 | NAVIGATIONAL OPERATION METHOD - A navigational operation method, applied to a remote controller of a multi-media player, includes the following steps. One of multiple operation modes of the multi-media player is selected. A navigation key on the remote controller is triggered. A function table or multiple function keys corresponding to the selected operation mode are displayed on the multi-media player. | 04-12-2012 |
| 20120082394 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus including an image detecting unit, an image interpolating unit and an image blending unit is provided. The image detecting unit detects a pixel difference value of an image frame and a previous image frame or a next image frame thereof and outputs a weight value according to the pixel difference value. The image interpolating unit interpolates a pixel value of the image frame in an intra-field interpolation method and an inter-field interpolation method. The image blending unit blends the pixel value interpolated in the intra-field interpolation method and the pixel value interpolated in the inter-field interpolation method to restore the image frame according to the weight value. An image processing method is also provided. | 04-05-2012 |
| 20120075022 | DIFFERENTIAL AMPLIFIER - A differential amplifier includes a pair of input transistors, a pair of load transistors, a pair of impedance devices, a pair of auxiliary input transistors, and a pair of shield transistors is provided. The input transistors provide two input terminals. The load transistors provide two output terminals and two first terminals connected to first voltage. The impedance devices are coupled between the output terminals in series. The auxiliary input transistors have two control terminals respectively connected to the input terminals, two first terminals, and two second terminals. The input transistors and the auxiliary input transistors have reverse conductive type. The shield transistors has a pair of control terminals, a pair of first terminals respectively connected to the second terminals of the auxiliary input transistors and coupled to a second voltage through a pair of current sources, and a pair of second terminals respectively connected to the output terminals. | 03-29-2012 |
| 20120068947 | TOUCH DETECTION METHOD AND TOUCH DETECTOR USING THE SAME - A method for double click detection includes the following steps. Firstly whether first event is detected is determined, if so, first corresponding position is obtained, a period counting is triggered, and first flag is set. Then whether the period ends is judged; if not and the first flag exists, a counter is incremented and second flag is set when first ending event is detected; if not and the second flag exists, second corresponding position is obtained and third flag is set when second event is detected; if not and the third flag exists, the counter is incremented when second ending event is detected; if so, a double click event is determined when the incremented value is greater than a threshold and a distance between the first and the second positions is smaller a threshold. | 03-22-2012 |
| 20120068685 | CIRCUIT AND METHOD FOR GENERATING REFERENCE VOLTAGE AND REFERENCE CURRENT - A circuit for generating reference voltage and reference current includes a band-gap reference circuit and a voltage-to-current converting circuit. The band-gap reference circuit is configured to generate a temperature-independent reference voltage by generating a first current with a positive temperature coefficient. The voltage-to-current converting circuit is coupled to a node of the band-gap reference circuit and configured to convert a voltage with a negative temperature coefficient at the node into a second current with a negative temperature coefficient. The band-gap reference circuit and the voltage-to-current converting circuit share a common current source having a feedback transistor through which a reference current flows. The reference current is divided into the first current of the band-gap reference circuit and the second current of the voltage-to-current converting circuit, thus having a temperature coefficient substantially equal to zero by combining the first current and the second current. | 03-22-2012 |
| 20120062546 | DATA DRIVER - A data driver includes two data processing circuits for respectively providing positive and negative pixel voltages according to first and second pixel data, and a multiplexer circuit including multiplexer units. Each multiplexer unit has first and second input terminals respectively receiving the positive and negative pixel voltages, and an output terminal coupled to a data line. A first switching device has first and second switches serially coupled between the first input and output terminals. A node between the first and second switches is selectively grounded via a third switch. A second switching device has fourth and fifth switches serially coupled between the second input and output terminals. A node between the fourth and fifth switches is selectively grounded via a sixth switch. When the first and second switches turn on, the sixth switch turns on. When the fourth and fifth switches turn on, the third switch turns on. | 03-15-2012 |
| 20120056857 | Display apparatus and display method thereof - A display apparatus and a display method thereof are provided. The display apparatus comprises a panel, an unusual status detecting unit, a status recognizing unit, a scan driver and a data driver. The unusual status detecting unit detects an unusual status to output a status feedback signal. The status recognizing unit transforms a first output enabling signal into a second output enabling signal according to the status feedback signal. The scan driver outputs a plurality of scan signals to drive the panel according to the clock signal and the second output enabling signal. The second output enabling signal masks at least one of the scan signals. The data driver outputs the data signals to the panel. | 03-08-2012 |
| 20120044158 | ELECTRONIC APPARATUS WITH TOUCH PANEL AND METHOD FOR UPDATING TOUCH PANEL - An electronic apparatus with a touch panel including a host controller, an interface unit, and a touch panel control unit is provided. The host controller is used to control an electronic apparatus implemented with the host controller. The touch panel control unit is coupled to the host controller through the interface unit. The host controller transmits an updating information to the touch panel control unit with a format of the interface unit, in which the updating data is used to update the touch panel control unit. The touch panel control unit decodes the updating data to accordingly update. | 02-23-2012 |
| 20120038332 | LINEAR VOLTAGE REGULATOR AND CURRENT SENSING CIRCUIT THEREOF - A linear regulator and a current sensing circuit are provided. The linear regulator comprises a pass transistor, a compensation capacitor, a variable resistor, an error amplifier and a current sensing circuit comprising a sense transistor controlled by the error amplifier and a voltage follower coupled with the second terminal of the pass transistor and the second terminal of the sense transistor. The sense transistor receives an input voltage, and generates a sense current proportional to a pass current. The voltage follower controls the voltage at the second terminal of the sense transistor to be the same as that at the second terminal of the pass transistor, and adjusts the resistance of the variable resistor according to the voltages at the second terminal of the pass transistor, the voltage at the second terminal of the sense transistor, and the sense current flowing through the sense transistor. | 02-16-2012 |
| 20120030549 | DATA TRANSMISSION DETECTING DEVICE, DATA TRANSMISSION DETECTING METHOD AND ELECTRONIC DEVICE THEREOF - A data transmission detecting device including a detecting module and a detection value calculating module is provided. The detecting module has a plurality of receiving terminals and receives a first data and a second data during a first period. The detecting module calculates a total detection value according to the first data and the second data, and performs an error check comparison by comparing the total detection value with an error check code. When the detecting module again receives the first data during a second period, the detection value calculating module transmits an auxiliary detection value to the detecting module, so that the detecting module calculates a corresponding total detection value according to the auxiliary detection value, and performs the error check comparison by comparing the total detection value with the error check code. The first period and the second period are two successive periods adjacent to each other. | 02-02-2012 |
| 20120013399 | AUTOMATIC GAIN CONTROL CIRCUIT AND AUTOMATIC GAIN CONTROL METHOD - An automatic gain control method includes receiving a sequence of multiple digital data, and calculating a plurality of signal values corresponding to the respective voltage values of the digital data, such as multiple peak-to-peak voltage values or power values, so as to optimize a gain according to variations in the output values. The gain optimization includes updating a reference value according to the signal values. If the reference value is less than a minimum threshold, the gain is increased to cause the reference value to reach the minimum threshold. The gain optimization also includes analyzing a clipping rate according to the signal values. If the clipping rate is equal to zero, then the gain is adjusted up. If the clipping rate is greater than zero, then the gain is adjusted down, such that the clipping rate is decreased to approach to zero. | 01-19-2012 |
| 20120011184 | APPARATUS AND METHOD FOR SPLIT-RADIX-2/8 FAST FOURIER TRANSFORM - An SR-2/8 FFT apparatus includes a memory, an SRFFT processor and a control unit. The control unit includes an input control block, an SRFFT control block and an output control block. The input control block loads memory banks with the input data in a first order, such that the SRFFT processor is able to retrieve data from the memory banks simultaneously in a single clock cycle. The SRFFT control block determines a decomposition structure of a 2 | 01-12-2012 |
| 20120007673 | AMPLIFIER WITH WIDE GAIN RANGE - An amplifier with wide gain range includes a signal converting unit, a channel unit, and multiple amplifiers. The signal converting unit receives a gain modulation signal and accordingly outputs multiple modulation signals and multiple selection signals. Based on a level of the gain modulation signal, one of the selection signals is set at a first logic state and the other selection signals are at a second logic state. The channel unit has multiple channels, respectively controlled by the selection signals, so as to conduct the channel with at the first logic state. The amplifiers are connected in series. Output terminals of the amplifiers are also respectively output to the channels of the channel unit. The amplifiers are also controlled by the modulation signals of the signal converting unit. | 01-12-2012 |
| 20110320852 | CLOCK CIRCUIT AND RESET CIRCUIT AND METHOD THEREOF - A clock circuit is suitable for use in a timing circuit which provides time information according to a reference clock. The clock circuit includes a clock detector to detect whether or not an interruption of the reference clock occurs. When the interruption of the reference clock occurs, a clock interruption signal is issued as a reference whether or not to reset the timing circuit. | 12-29-2011 |
| 20110316794 | TOUCH SENSING METHOD AND TOUCH SENSING SYSTEM - A touch sensing system including a touch interface and a processing unit is provided. The touch interface has multiple independent touch blocks. The processing unit is coupled to the touch interface. The processing unit includes an interpolating unit. The interpolating unit interpolates multiple spacing points between two adjacent touch blocks along a first direction to generate multiple first coordinate values. The processing unit determines a central block according to a threshold value and sensing values corresponding to the touch blocks, selects at least one touch block adjacent to the central block as a peripheral block, and determines a touch position on the touch interface according to the number of the spacing points, the sensing value corresponding to the peripheral block, a position of the peripheral block, the sensing value corresponding to the central block, and a position of the central block. | 12-29-2011 |
| 20110314299 | ELECTRONIC APPARATUS, DISPLAY DRIVING APPARATUS, AND DIGITAL CONTENT DISPLAY METHOD THEREOF - A digital content display method adaptable to an electronic apparatus is provided. The electronic apparatus includes a display interface and a display driving apparatus. The digital content display method includes following steps. An encrypted digital content is received by the display driving apparatus. The encrypted digital content is decrypted by the display driving apparatus according to an algorithm. The display interface of the electronic apparatus is driven by the display driving apparatus according to the decrypted digital content so that the display interface displays the digital content. Additionally, an electronic apparatus and a display driving apparatus thereof are also provided. | 12-22-2011 |
| 20110304594 | DRIVER IC, PANEL DRIVING SYSTEM, AND PANEL DRIVING METHOD - A panel driving system including a pixel panel and a driver IC is provided. The pixel panel includes a plurality of data lines and a plurality of pixels, wherein each of the data lines includes a switch. The driver IC drives the pixel panel according to a programmable burning code, wherein the programmable burning code is burnt into the driver IC according to a user information. Accordingly, the panel driving system can adaptively adjust its driving signals to satisfy user requirements according to the programmable burning code. In addition, a panel driving method is also provided. | 12-15-2011 |
| 20110296134 | ADAPTIVE ADDRESS TRANSLATION METHOD FOR HIGH BANDWIDTH AND LOW IR CONCURRENTLY AND MEMORY CONTROLLER USING THE SAME - An adaptive memory address translation method includes the following steps. Multiple request instructions are received. A memory address corresponding to each request instruction includes a bank address. The memory addresses corresponding to the request instructions are translated, such that the bank addresses corresponding to at least one part of the any two adjacent request instructions are different. A numerical translation is utilized to translate the memory addresses corresponding to the request instructions, such that the memory addresses corresponding to the any two adjacent request instructions have less different bits. | 12-01-2011 |
| 20110292022 | POWER CONVERTING APPARATUS AND POWER CONVERTING METHOD - A power converting apparatus including a power converting unit and a control unit is provided. The power converting unit receives an input voltage and generates an output voltage for a display driving unit according to a control signal. The control unit provides the control signal to the power converting unit, wherein the control unit adjusts the duty cycle or the frequency of the control signal according to an image signal. In addition, a power converting method is also provided. | 12-01-2011 |
| 20110285674 | CONTROL APPARATUS AND METHOD FOR LIQUID CRYSTAL DISPLAY - A control apparatus and method for a liquid crystal display are provided. The method includes the following steps. An input pixel datum of N bits is converted into a first pixel datum and the M most significant bits of the first pixel datum are outputted as a second pixel datum, wherein N and M are positive integers with N>M. FRC processing is performed with respect to the second pixel datum with one of a first frame cycle number and a second frame cycle number selectively according to the first pixel datum to output corresponding FRC pixel data, wherein the second frame cycle number is greater than the first frame cycle number. | 11-24-2011 |
| 20110261906 | METHOD AND APPARATUS FOR MODULATION RECOGNITION IN COMMUNICATION SYSTEM - A method and an apparatus for modulation recognition in communication system are provided. First, a plurality of constellation corresponding different modulation types are provided, wherein each constellation has a plurality of points. An input signal is de-mapped to find out a nearest point located nearest to a position of the input signal in each constellation. The distances from the nearest points to the position of the input signal are respectively counted to obtain a plurality of distance statistics values corresponding to different modulation types. The apparatus compares the distance statistics values for recognizing the modulation type of the input signal. | 10-27-2011 |
| 20110260992 | PANEL CONTROL DEVICE AND OPERATION METHOD THEREOF - A panel control device and an operation method thereof are provided. The panel control device includes a touch controller and a display controller. The display controller drives a touch display panel module to display an image. The touch controller senses a touch event of the touch display panel module. Wherein, the sensing operation of the touch controller is enabled/disabled in accordance with the driving operation of the display controller. | 10-27-2011 |
| 20110254601 | LOCK DETECTOR, METHOD APPLICABLE THERETO, AND PHASE LOCK LOOP APPLYING THE SAME - A lock detector for a phase lock loop (PLL) includes: first and second pulse width extenders, performing pulse width extension on first and second pulses for generating third and fourth pulses, respectively; first and second delay circuits, delaying the third and the fourth pulses into first and second sampling clocks, respectively; and a cross-sampling circuit, sampling the third pulse based on the second sampling clock and sampling the fourth pulse based on the first sampling clock to indicate whether the PLL is locked. | 10-20-2011 |
| 20110254596 | SPREAD SPECTRUM CIRCUIT - A spread-spectrum circuit including an inverter, a current source, a control unit and a shaping circuit is provided. An input terminal of the inverter receives an original clock signal. The current source is coupled to a current transmission terminal of the inverter. The control unit includes a control circuit, and changes the current magnitude of the current source according to the original clock signal to control the charging/discharging speed of an output terminal of the inverter, so that the output terminal outputs a voltage signal. The shaping circuit shapes the voltage signal into a spread-spectrum clock signal. | 10-20-2011 |
| 20110249909 | FILTER AND FILTERING METHOD FOR REDUCING IMAGE NOISE - A filter for reducing image noise including a sum of absolute difference (SAD) unit and a weighting unit is provided. The SAD unit receives pixels of a target window and receives multiple pixels of multiple peripheral windows, which are neighboring to a target pixel of the target window. Each of the peripheral windows has a peripheral pixel neighboring to the target pixel. The SAD unit calculates absolute differences for each of the pixels corresponding to the target window and the peripheral window. The absolute differences are calculated by a difference calculation to obtain a difference analyzed value. The weighting unit receives each of the difference analyzed values and assigns multiple weights respectively to the peripheral pixels according to a data table. | 10-13-2011 |
| 20110249777 | FRAME SYNCHRONIZATION APPARATUS AND METHOD BASED ON DIFFERENTIAL CORRELATION IN COMMUNICATION SYSTEM - A frame synchronization apparatus and method based on differential correlation in a communication system are provided. A correlation analysis is performed by using sync word in a prior search window and a posterior search window for obtaining a plurality of prior-window correlation values and a plurality of posterior-window correlation values, respectively. N maximum correlation values in the correlation values are selected, wherein indexes of the maximum correlation values are I | 10-13-2011 |
| 20110249510 | EMBEDDED STORAGE APPARATUS AND TEST METHOD THEREOF - An embedded storage apparatus including a control unit, a storage unit, and a signal processing and measurement unit is provided. The control unit outputs a plurality of signals, wherein the signals include a mode selection signal and a plurality of control signals. The storage unit is controlled by the control unit to read a data from a predetermined address. The storage unit has a plurality of output terminals. The signal processing and measurement unit has a plurality of input terminals and a plurality of output terminals, wherein the input terminals are connected to the output terminals of the storage unit. The signal processing and measurement unit reads the data from the output terminals and determines whether to perform a predetermined processing on the data according to the mode selection signal. After that, the signal processing and measurement unit outputs the data through the output terminals. | 10-13-2011 |
| 20110242031 | DISPLAY DEVICE WITH TOUCH FUNCTION AND 2D SENSING METHOD THEREOF - A display device with a touch function is provided. The display device includes a display panel and a touch panel. The display panel has a plurality of image scan lines, and the image scan lines are respectively activated by a plurality of scan signals generated by a gate driver according to a time sequence. The touch panel has a plurality of touch scan lines and a plurality of touch sensing lines, wherein the touch scan lines and the touch sensing lines are disposed crossing each other for sensing a touched position. The gate driver also provides a plurality of touch scan signals to the touch scan lines according to a time sequence. | 10-06-2011 |
| 20110238721 | ADDER CIRCUIT AND XIU-ACCUMULATOR CIRCUIT USING THE SAME - A Xiu-accumulator circuit including N cascaded adders is provided. Each adder includes two registers, wherein one register stores an addition result information and the other register stores a carry-in information. Respective addition result information from respective adder is further fed back to itself for accumulation. The carry-in information outputted from a previous stage adder is fed to a next stage adder at a next clock cycle. After N clock cycles, the carry-in information outputted from the first stage adder is fed to the last stage adder. | 09-29-2011 |
| 20110235722 | Computer system architecture - A computer system architecture including a first buffer, a second buffer, a sub-system and a CPU is provided. The sub-system carries out a first task to obtain first returned information, stores the first returned information in the first buffer and sets up a first occupancy flag to the first buffer. Next, the sub-system carries out a second task to obtain second returned information, stores the second returned information in the second buffer, and sets up a second occupancy flag to the second buffer. The CPU reads the first returned information and eliminates the first occupancy flag. After the second returned information is stored in the second buffer and the first occupancy flag is eliminated, the sub-system continuously carries out a third task to obtain third returned information, stores the third returned information in the first buffer, and sets up the first occupancy flag to the first buffer. | 09-29-2011 |
| 20110234523 | TOUCH SENSING SYSTEM, ELECTRONIC TOUCH APPARATUS, AND TOUCH SENSING METHOD - A touch sensing system including a touch interface, at least one sensing unit, and a switching unit is provided. The sensing unit is coupled to the touch interface. The touch sensing system is switched to a first sensing mode or a second sensing mode by the switching unit according to a control signal. When the touch sensing system is in the first sensing mode, the sensing unit senses a first sensing signal and a second sensing signal of the touch interface. On the other hand, when the touch sensing system is in the second sensing mode, the sensing unit senses the first sensing signal according to a driving signal. An electronic touch apparatus and a touch sensing method are also provided. | 09-29-2011 |
| 20110234522 | TOUCH SENSING METHOD AND SYSTEM USING THE SAME - A touch sensing system including a touch interface and a control unit is provided. The touch interface senses at least one edge change of at least one region on the touch interface corresponding to at least one object. The control unit defines a touch gesture corresponding to the object according to the edge change so as to perform a touch operation corresponding to the touch gesture. Additionally, a touch sensing method is also provided. In the touch sensing method, whether the touch gesture is a moving gesture, a rotation gesture, a flip gesture, a zoom-in gesture, or a zoom-out gesture is determined according to any change of a touch region. | 09-29-2011 |
| 20110231466 | TIME-DIVISION DECIMATION FILTER BANK AND TIME-DIVISION DECIMATION FILTERING METHOD - A time-division (TD) decimation filter bank includes two decimation filter units. The first decimation filter unit operates at a system clock and receives a first-stage input data string. Each data in the first-stage input data string has a first part data and second part data. During the odd clock periods, the first part data are filtered and decimated in frequency. During the even clock periods, the second part data are filtered and decimated in frequency. The second decimation filter unit operates at the system clock and 2 | 09-22-2011 |
| 20110229044 | HIERARCHICAL MOTION DEBLURRING METHOD FOR SINGLE IMAGE - A hierarchical motion deblurring method for a single image is provided. In the method, a blur kernel of a target image is calculated and a multi-scale representation for representing the target image and the blur kernel is constructed. Then, a gradient attenuation function and a strong edge suppression function are applied to a residual Richardson-Lucy algorithm, so as to iteratively calculate a residual image between the blur kernel and the target image represented by the representation in each scale and restore the residual image to obtain a first restored image and a second restored image. Finally, the two restored images are compared so as to obtain a motion deblurring image. | 09-22-2011 |
| 20110219198 | MEMORY CONTROL SYSTEM AND METHOD - A memory control system includes a first queue unit, a second queue unit, a first transforming unit, a second transforming unit, an arbiter and a control unit. The first queue unit temporarily stores multiple first request instructions. The second queue unit temporarily stores multiple second request instructions. The first transforming unit selectively re-assigns memory addresses corresponding to these first request instructions. The second transforming unit selectively re-assigns memory addresses corresponding to these second request instructions. The arbiter performs immediate scheduling of the first request instructions and the second request instructions to the memory. The control unit compares bandwidths of the first request instructions with bandwidths of the second request instructions, and controls the first transforming unit and the second transforming unit to perform re-assigning operations or not according to compared results. | 09-08-2011 |
| 20110210930 | SENSING AND DRIVING APPARATUS, TOUCH SENSING SYSTEM, AND SENSING AND DRIVING METHOD - A sensing and driving apparatus suitable for a sensing interface is provided. The sensing and driving apparatus includes a driving module and a sensing unit. The driving module outputs a first reference signal and a second reference signal which have different polarities with each other, and respectively transmits the first reference signal and the second reference signal to a first driving line and a second driving line of the sensing interface so as to generate a first sensing signal during a first period. The sensing unit receives the first sensing signal and detects a change of the first signal so as to generate a sensing result. A sensing and driving method, a touch sensing system and a device using the same are also provided herein. | 09-01-2011 |
| 20110205873 | LONG SEEK CONTROL SYSTEM AND METHOD THEREOF USED IN OPTICAL INFORMATION REPRODUCTION/RECORDING SYSTEM - A long seeking control method, for an optical information reproduction/recoding system having a lens and a sledge, includes: obtaining a sledge estimation velocity, a sledge estimation displacement, a sledge reference velocity and a first force applied to the sledge; determining to generate the sledge estimation velocity and the sledge estimation displacement in a first open loop control or in a first close loop control based on the sledge estimation velocity; determining to generate the a second force applied to the lens in a second open loop control or in a second close loop control based on the sledge estimation velocity; and pushing the sledge and the lens by the first force and the second force. | 08-25-2011 |
| 20110199323 | TOUCH SENSING METHOD AND SYSTEM USING THE SAME - A touch sensing system includes a touch interface and a control unit. The touch interface senses at least one area change generated on the touch interface by at least one object. The control unit defines a touch gesture corresponding to the at least one object according to the at least one area change, so as to perform a touch operation according to the touch gesture. On the other hand, a touch sensing method is also provided. For users, the touch sensing method in the invention employs a pseudo three-dimensional touch sensing technology, such that applications of the touch sensing technology become more diverse. | 08-18-2011 |
| 20110199245 | MULTI-CHANNEL ANALOG DIGITAL CONVERSION CIRCUIT AND ANALOG DIGITAL CONVERSION METHOD THEREOF - A multi-channel analog digital conversion circuit includes a plurality of sampling circuits for sampling and buffering a plurality of analog input signals, a single output circuit coupled to the sampling circuits and shared by the sampling circuits and a single analog digital conversion core coupled to the output circuit and shared by the sampling circuits. | 08-18-2011 |
| 20110193571 | TOUCH SENSING SYSTEM, CAPACITANCE SENSING CIRCUIT AND CAPACITANCE SENSING METHOD THEREOF - A touch sensing system which includes a touch input interface and a capacitance sensing circuit is provided. The touch input interface includes a plurality of sensing capacitors which output at least one waveform under test and at least one reference waveform. The capacitance sensing circuit includes a difference comparing unit. The difference comparing unit receives the waveform under test and the reference waveform and outputs a differential signal according to at least one positive edge difference and at least one negative edge difference between the waveform under test and the reference waveform. Furthermore, a capacitance sensing method is also provided. | 08-11-2011 |
| 20110193188 | IMAGE SENSOR - An image sensor comprising a black pixel region and an active pixel region is provided. The active pixel region is adjacent to the black pixel region. The black pixel region comprises a dummy black pixel region and a readout black pixel region. The readout black pixel region is surrounded by the dummy black pixel region. The dummy black pixel region comprises a photo-sensitive element, a first shielding layer, a second shielding layer and a third shielding layer. The first shielding layer, the second shielding layer and the third shielding layer are used for blocking the incident light going into the photo-sensitive element. The first shielding layer, the second shielding layer and the third shielding layer cover the photo-sensitive element, and the second shielding layer is interposed between the first shielding layer and the third shielding layer. | 08-11-2011 |
| 20110191505 | KEY ACTIVITY DETECTION SYSTEM AND METHOD THEREOF - A key activity detection method, applied in an electronic device having at least a first key and a digital I/O pin, includes: switching the digital I/O pin to a first operation mode, so that a voltage of the digital I/O pin is decreased to a ground voltage; switching the digital I/O pin to a second operation mode, so that the voltage of the digital I/O pin is increased; measuring a first charge period of the voltage of the digital I/O pin; counting a first appearance times of the first charge period; judging whether the first key is stably activated according to the first appearance times of the first charge period. | 08-04-2011 |
| 20110187760 | BACKLIGHT CONTROL APPARATUS AND CONTROL METHOD THEREOF - A backlight control apparatus for controlling luminance of a backlight panel includes an image information memory and a detection and automatic switching circuit. The image information memory is for storing the image information. The detection and automatic switching circuit is for detecting the updated frequency of the updated image information and then sets a displaying mode for adjusting the luminance of the backlight panel according to the updated frequency. | 08-04-2011 |
| 20110187757 | SOURCE DRIVING APPARATUS FOR DISPLAY - A source driving apparatus of a display is disclosed. The source driving apparatus includes a digital-to-analog converter, a selecting signal generator and a voltage selector. The digital-to-analog converter receives a first part display signal of a display signal and a plurality of gamma voltages and selects a first selecting gamma voltage and a second selecting gamma voltage within the gamma voltages according to the first part display signal. The selecting signal generator receives a second part display signal of the display signal expect the first part display signal and a plurality of pulse-width-modulation (PWM) signals. The selecting signal generator selects one of the PWM signals to generate a selecting signal according to the second part display signal. The voltage selector outputs the first selecting gamma voltage or the second selecting gamma voltage according to a pulse width of the selecting signal. | 08-04-2011 |
| 20110187752 | BACKLIGHT CONTROL APPARATUS AND CONTROL METHOD THEREOF - A backlight control apparatus is for controlling the luminance of a backlight panel. The backlight control apparatus includes an image analyzer and a mode switch, wherein the image analyzer receives a present frame information and a previous frame information, and compares the received frame information with each other and obtains a variation between the present frame information and the previous frame information. The mode switch receives the variation and sets a displaying mode for adjusting the luminance of the backlight panel according to the variation. | 08-04-2011 |
| 20110187663 | OBJECT SENSING APPARATUS, TOUCH SENSING SYSTEM, AND TOUCH SENSING METHOD - An object sensing apparatus including an object sensing unit, a signal selecting unit, at least one signal sensing unit, and a control unit is provided. The object sensing unit outputs a plurality of sensing signals. The signal selecting unit selects at least one of the sensing signals as a signal under test and selects at least one of the unselected sensing signals as a reference signal. The signal sensing unit outputs a difference signal according to the signal under test and the reference signal. The control unit determines an object position relative to the object sensing unit according to the difference signal. Additionally, a touch sensing apparatus and a method thereof are also provided. | 08-04-2011 |
| 20110187390 | TOUCH SENSING SYSTEM, CAPACITANCE SENSING CIRCUIT, AND CAPACITANCE SENSING METHOD - A touch sensing system including a touch input interface and a capacitance sensing circuit is provided. The touch input interface includes a plurality of sensing capacitors for outputting a capacitance under test and a reference capacitance. The capacitance sensing circuit includes a first sensing channel, a second sensing channel, and a difference comparing unit. During a first period of the sensing period, the first sensing channel senses the capacitance under test, and the second sensing channel senses the reference capacitance. During a second period of the sensing period, the first sensing channel senses the reference capacitance, and the second sensing channel senses the capacitance under test. The difference comparing unit outputs a difference according to the capacitance under test and the reference capacitance. Additionally, a capacitance sensing method is also provided. | 08-04-2011 |
| 20110181353 | TWO-CHANNEL OPERATIONAL AMPLIFIER CIRCUIT - A two-channel operational amplifier circuit includes a first operational amplifier and a second operational amplifier. In a first frame period, the two-channel operational amplifier circuit switches a first input stage, a first gain stage and a first output stage to work between a working voltage and a half working voltage, and switches a second input stage, a second gain stage and a second output stage to work between the half working voltage and a ground voltage. In a second frame period, the two-channel operational amplifier circuit switches the second input stage and the second gain stage to work between the working voltage and the half working voltage, and switches the first input stage and the first gain stage to work between the half working voltage and the ground voltage. | 07-28-2011 |
| 20110181203 | DRIVING CIRCUIT AND METHOD FOR DRIVING CURRENT-DRIVEN DEVICES AND ELECTRONIC DEVICE APPLYING THE SAME - Provided is a light emitting diode (LED) driving circuit for driving a plurality of LED groups. The LED driving circuit includes: a voltage converter, for converting an input voltage into an output voltage, the output voltage coupled to a respective first terminal of each of the LED groups; and a controller, coupled to the voltage converter for controlling the voltage converter, the controller including a plurality of output channel terminals respectively corresponding to a plurality of output channels, one or more of the output channels are enabled and one or more of the output channels are disabled. One or more of the output channel terminals corresponding to the one or more enabled output channels are coupled to second terminals of corresponding ones of the LED groups, and one or more of the output channel terminals corresponding to the one or more disabled output channels are coupled to a reference voltage. | 07-28-2011 |
| 20110169801 | DRIVING APPARATUS OF DISPLAY - A driving apparatus of a display is disclosed. The driving apparatus mentioned above includes a digital-to-analog converter circuit and an output buffer circuit. The digital-to-analog converting circuit receives a display data with a digital format for generating a gray-level voltage. The output buffer circuit has an output terminal to output an output signal. The output buffer circuit receives the gray-level voltage, a pre-charge enable signal and the output signal and provides a pre-charge output signal to the output terminal of the output buffering circuit according to the pre-charge enable signal and a comparison result of the gray-level voltage and the output signal. | 07-14-2011 |
| 20110163994 | TOUCH SENSING SYSTEM, CAPACITANCE SENSING APPARATUS AND CAPACITANCE SENSING METHOD THEREOF - A touch sensing system includes a touch input interface and at least one capacitance sensing apparatus. The capacitance sensing apparatus includes a plurality of switch units and a differential sensing circuit. Each of the switch units is coupled to a corresponding sensing capacitor. A sensing input end of the differential sensing circuit receives a capacitance under test provided by at least one of the sensing capacitors. A reference input end of the differential sensing circuit receives a reference capacitance provided by at least one of the sensing capacitors. The differential sensing circuit compares the capacitance under test and the reference capacitance to output a first difference between the capacitance under test and the reference capacitance through an output end of the differential sensing circuit. A capacitance sensing method is also provided. | 07-07-2011 |
| 20110151801 | METHOD FOR SPECTRUM NOISE DETECTION - A method for spectrum noise detection is provided. Means and a total mean of spectrum blocks of a frequency-domain signal are calculated. Whether the means are greater than a cut-off threshold is checked. If all the means are greater than the cut-off threshold, whether the means range between a variance lower bound and a variance upper bound is checked, an estimation bandwidth corresponding to the spectrum blocks is obtained according to a bandwidth check threshold, and whether a central frequency of the estimation bandwidth approximates a central frequency of the spectrum of the frequency-domain signal is checked. If the number of the means ranging between the variance lower bound and the variance upper bound exceeds a default value, and the estimation bandwidth is greater than a predetermined bandwidth and the central frequency of the estimation bandwidth approximates the central frequency, the frequency-domain signal is determined as a noise signal. | 06-23-2011 |
| 20110142130 | PICTURE DECODER - A picture decoder having a stream buffer, an H.264/AVC decoder, and a processor is provided. The stream buffer stores stream data. The H.264/AVC decoder decodes the stream data and performs an operation on a slice layer specified in the H.264/AVC standard to reorder reference pictures recorded in a reference picture list according to the stream data and generate a plurality of decoded pictures. The processor executes a program to perform an operation on a sequence layer specified in the H.264/AVC standard and mark the decoded pictures. | 06-16-2011 |
| 20110141094 | VOLTAGE GENERATING SYSTEM - A voltage generating system applied to a display driving apparatus is disclosed, which is capable of changing a time point at which a signal of a pixel electrode and a signal of a common electrode perform polarity inversion according to a first sequence, so as to adjust the frequency of an AC common voltage dynamically. Therefore, the noise frequency caused by the transition of the AC common voltage is dispersed, and the energy of audio-frequency noises and high-frequency noises is reduced. | 06-16-2011 |
| 20110133785 | APPARATUS AND METHOD FOR TIMING ERROR DETECTION DECISION LOCK - A method for timing error detection decision lock includes the following steps. Multiple detected values are obtained from a transmission signal. A moving sum mean signal is obtained according to the detected values. The moving sum mean signal is sampled every second constant period to obtain multiple sampling values. Whether the transmission signal is in a timing-lock status or an un-timing-lock status is determined according to relative relationships between the sampling values. | 06-09-2011 |
| 20110123128 | BIT RATE CONTROL CIRCUIT AND METHOD FOR IMAGE COMPRESSION - A bit rate control circuit for image compression includes a compression unit, a R-value calculation unit, a linear quantization factor (LQF) calculation unit. The compression unit is used to performs a first quantization process on an image based on a default LQF (LQF | 05-26-2011 |
| 20110122317 | CONTROL METHOD OF PROMPT FACILITY IN HDMI-CEC DEVICE AND DISPLAY APPARATUS WITH SUCH CONTROL METHOD - A displaying apparatus with prompt facility in HDMI-CEC device includes a control unit, a display panel and a HDMI signal processing unit. The control unit can receive a control signal generated from a remote controller. The display panel is controlled by the control unit to display an image. The HDMI signal processing unit is coupled with the control unit and coupled with at least one peripheral apparatus, which also has the HDMI-CEC facility. When the remote controller controls the peripheral apparatus via the control unit and the HDMI signal processing unit, the image of the display panel can show a set of functional-key prompting pattern in the remote controller, corresponding to the peripheral apparatus. | 05-26-2011 |
| 20110102081 | AMPLIFIER CIRCUIT WITH OVERSHOOT SUPPRESSION - An amplifier circuit with overshoot suppress scheme including an input amplifier, an output amplifier, and a diode is provided. A first and a second input ends of the output amplifier are coupled to a differential output pair of the input amplifier. A first end of the diode is coupled to an output end of the output amplifier. A second end of the diode is coupled to the first input end of the output amplifier. When the voltage difference between the output and the input ends of the output amplifier is greater then the barrier voltage of the diode, the diode is turned on, so that the output end of the output amplifier is coupled to the input end of the output amplifier. In the transient state, it rapidly smoothes the overshoot signal. In the steady state, the diode is cut off to maintain the normal operation of the operational amplifier. | 05-05-2011 |
| 20110089987 | MULTI-PHASE SIGNALS GENERATOR - A multi-phase signals generator is disclosed. The multi-phase signals generator mentioned above includes a frequency divider and N delay circuits. The frequency divider receives a clock signal and divides a frequency of the clock signal to generate a divided frequency clock signal. The N delay circuits are connected in series. The delay circuit connected in a first stage receives the divided frequency clock signal. The delay circuit connected in an i | 04-21-2011 |
| 20110087716 | MULTI-RATE FILTER BANK - A multi-rate filter bank including an anti-aliasing filter, a plurality of multiplier block modules, a folding block, and a data composer is disclosed. The anti-aliasing filter receives an anti-aliasing input signal. The multiplier block modules receive an original signal and sequentially generate a plurality of processed signals. The multiplier block modules also receive a plurality of block input signals and a select signal. Each of the multiplier block modules is configured into a decimation block or an expanding anti-aliasing filter according to the select signal. The folding block receives the select signal and a folding input signal and generates a folding block output signal. The data composer receives and composes the folding block output signal and the outputs of the multiplexer block modules and the anti-aliasing filter and generates an anti-aliasing filter output signal. | 04-14-2011 |
| 20110086604 | RF SIGNAL RECEIVING APPARATUS - An RF signal receiving apparatus includes a first poly-phase filter, a second poly-phase filter, a first frequency-mixer module, a switch and a low-pass filter module. The first poly-phase filter receives an RF input signal and produces a filtered RF signal according to the received RF input signal. The first frequency-mixer module conducts frequency-mixing operation on a reduced-frequency signal and the filtered RF signal to produce a plurality of reduced-frequency RF signals. The switch receives and transmits the reduced-frequency RF input signal to a first channel or a second channel according to a selection signal. The second poly-phase filter receives the reduced-frequency RF signal transmitted by the second channel and filters the received signal. The low-pass filter module receives the filtered reduced-frequency RF signal or the reduced-frequency RF signal transmitted by the first channel to conduct low-pass filtering operation and produces a low-intermediate-frequency signal or a zero-intermediate-frequency signal. | 04-14-2011 |
| 20110069053 | DRIVING CIRCUIT OF LIQUID CRYSTAL DISPLAY - A driving circuit of a liquid crystal display including a first input port, a second input port, a first gamma buffer, a second gamma buffer, and a switching circuit is provided. A plurality of first gamma voltages are inputted from the first input port, and a plurality of second gamma voltages are inputted from the second input port. The switching circuit switches the connections between the two input ports and the two gamma buffers, such that a first line of pixels of the liquid crystal display receives the gamma voltages from the first gamma buffer within a first frame period and a second frame period, and that a second line of pixels of the liquid crystal display receives the gamma voltages from the second gamma buffer within the first frame period and the second frame period. | 03-24-2011 |
| 20110068445 | CHIP PACKAGE AND PROCESS THEREOF - A chip package and a process thereof are provided. The chip package includes a lead frame, a heat sink, a chip and a molding compound. The lead frame includes a chip pad and a plurality of leads, wherein the chip pad has a first surface and a second surface opposite thereto. The heat sink has a third surface and a fourth surface opposite thereto, wherein the lead frame is disposed on the third surface of the heat sink through the second surface of the chip pad, and the fourth surface of the heat sink is exposed. The chip is disposed on the first surface of the chip pad and electrically connected to each of the chip pad and the leads. The molding compound encapsulates the chip, the chip pad, the heat sink and a portion of each of the leads. | 03-24-2011 |
| 20110063245 | TOUCH APPARATUS AND DISPLAY PANEL THEREOF - A touch apparatus and a display panel thereof are provided. The touch apparatus includes an upper substrate and a lower substrate. The lower substrate at least includes a first selection line, a first readout line intersected with the first selection line, a first conductive bump, and a second conductive bump. The first and the second conductive bumps are disposed at the intersection of the first selection line and the first readout line, and electrically connected with the first selection line and the first readout line, respectively. The upper substrate at least includes a first conductive layer without potential, which is disposed above the first and the second conductive bumps. When an external force is exerted to the first conductive layer without potential, the first and the second conductive bumps are electrically connected to each other by the first conductive layer without potential. | 03-17-2011 |
| 20110063207 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF AND PROJECTION APPARATUS AND CONTROL METHOD THEREOF - A display apparatus including at least one sensor, a processing unit and a control unit is provided. The sensor senses a human body. The processing unit is coupled to the sensor, and captures and processes signals from the sensor to obtain a sensing data. The control unit is coupled to the processing unit, and analyzes and determines whether the human body is to enter into or to be distant from a sensing range of the sensor according to the sensing data. When the control unit determines that the human body is to be distant from the sensing range for a first predetermined time, the control unit turns off the display apparatus or makes the display apparatus get into a power-saving/sleeping mode. When the control unit determines that the human body is to enter into the sensing range for a second predetermined time, the control unit turns on the display apparatus. | 03-17-2011 |
| 20110063031 | DRIVING APPARATUS AND DRIVING METHOD THEREOF - A driving apparatus and a driving method thereof are provided. The driving apparatus includes a digital to analog converter and a signal amplifier. The digital to analog converter is used for receiving a digital data and converting the digital data to an analog signal. The signal amplifier is coupled to the digital to analog converter. The signal amplifier is used for receiving the analog signal to generate a driving signal. The signal amplifier also dynamically changes the driving ability of the driving signal according to at least one bit of the digital data. | 03-17-2011 |
| 20110062924 | SWITCHING APPARATUS AND CONTROL SIGNAL GENERATOR THEREOF - A switching apparatus has a switch and a control signal generator. The control signal generator is configured to generate a control signal applied to the switch to control the operations of turning on and off of the switch. The control signal generator has an inverter and a regulating circuit. The input end of the inverter receives an input signal, and the output end of the inverter outputs the control signal. The regulating circuit has a switching unit and a capacitor. A first end of the switching unit is coupled to the output end of the inverter, a second end of the switching unit is coupled to a first system voltage, a third end of the switching unit is coupled to a first end of the capacitor, and a second end of the capacitor is coupled to a second system voltage. | 03-17-2011 |
| 20110062887 | DRIVING APPARATUS OF LIGHT EMITTING DIODE AND DRIVING METHOD THEREOF - A driving apparatus of a light emitting diode (LED) and a driving method thereof are provided. In the driving method, when the driving apparatus performs dimming and a duty cycle of a dimming signal is smaller than a predetermination value, outputting time of driving currents are equally allotted in a period, and a magnitude of each driving current is regulated correspondingly. When the driving apparatus performs dimming and the duty cycle of the dimming signal is equal to or greater than the predetermination value, the driving currents are simultaneously output in the period, and the magnitude of each driving current is regulated according to the dimming signal. Therefore, an audio noise and an electromagnetic interference caused by excessive variation of a sum of the driving currents are suppressed. | 03-17-2011 |
| 20110052048 | IMAGE COLOR PROCESSING DEVICE AND METHOD THEREOF - An image color processing device adapted to process a luminance data and an input chrominance data of an image includes an edge detecting unit, a chrominance filtering unit, and a chrominance mixing unit. The edge detecting unit receives the luminance data and detects whether each pixel of the image is on an edge of an image object and correspondingly assigns an edge strength to each pixel. The chrominance filtering unit receives the input chrominance data and then outputs a filtered chrominance data. The chrominance mixing unit receives the edge strength, the filtered chrominance data and the input chrominance data, and mixes the filtered chrominance data and the input chrominance data by a weighting manner, according to the edge strength, so as to obtain an output chrominance data. | 03-03-2011 |
| 20110050681 | LOW VOLTAGE DIFFERENTIAL SIGNAL OUTPUT STAGE - A low voltage differential signal (LVDS) output stage including a display signal digital circuit, a data parallel-to-serial (P2S) circuit and a transmitting circuit is provided. The display signal digital circuit generates a display signal and a display clock signal synchronous to each other according to a first frequency multiplication clock signal. The data P2S circuit samples the display signal according to a second frequency multiplication clock signal, so as to generate a serial data signal and a serial clock signal. The first frequency multiplication clock signal and the second frequency multiplication clock signal have a relationship of frequency multiplication. The data P2S circuit includes an adjustment structure for adjusting the serial clock signal according to the display clock signal and the second frequency multiplication clock signal, and controlling a transmitting time of the serial data signal transmitted according to a clock of the second frequency multiplication clock signal. | 03-03-2011 |
| 20110043216 | CIRCUIT STRUCTURE FREE FROM TEST EFFECT AND TESTING METHOD THEREOF - A circuit structure free from test effect is provided. The circuit structure includes a first test terminal and a second test terminal. A symmetric circuit unit is coupled between the first test terminal and the second test terminal. The symmetric circuit unit includes a plurality of transistors, wherein the transistors are symmetrically disposed to form a first part circuit and a second part circuit. A switch control unit alternatively connects the transistors of the first part circuit and the transistors of the second part circuit between the first test terminal and the second test terminal according to a control signal. | 02-24-2011 |
| 20110037782 | LIQUID CRYSTAL DISPLAY AND METHOD FOR IMAGE-DITHERING COMPENSATION - A liquid crystal display including a pixel array, multiple control lines and a driving unit is provided. The pixel array has multiple pixels. The control lines are coupled to the pixels. The driving unit drives the pixel array via the control lines. Of the pixels coupled to the same control line, the number of image-dithering compensated pixels with positive polarity is equal to the number of image-dithering compensated pixels with negative polarity when the pixel array is driven. | 02-17-2011 |
| 20110037399 | DIMMER CIRCUIT OF LIGHT EMITTING DIODE AND ISOLATED VOLTAGE GENERATOR AND DIMMER METHOD THEREOF - An isolated configuration dimmer circuit of a light emitting diode (LED) applied to a conventional triac dimmer and a dimmer method are provided. When a dimmer phase angle of the triac dimmer is regulated, a second side winding of a transformer of the isolated configuration produces a pulse width corresponding to a modulated alternating current (AC) voltage, so as to regulate the pulse width of a driving signal output by the second side winding of the transformer. In addition, the dimmer circuit regulates the magnitude of a current flowing through the light emitting diode (LED) according to the pulse width corresponding to the modulated AC voltage. Accordingly, the dimmer circuit regulates the pulse width and the magnitude of the current flowing through the LED according to the dimmer phase angle of the triac dimmer. Therefore, a dimmer range of the LED can be increased. | 02-17-2011 |
| 20110037396 | LIGHT EMITTING DIODE MODULE AND DRIVING METHOD THEREOF - A light emitting diode module having a plurality of LED strings is provided. The light emitting diode module includes a voltage generating loop, a light tuner, a voltage selector, and a voltage storage and comparison circuit. The voltage generating loop generates a system voltage according to a pulse modulation control signal. The light tuner receives a light tuning signal and turns on or off the LED strings accordingly. The voltage selector selects one of terminal voltages of terminals of the LED strings coupled to the light tuner for generating a selection voltage. The voltage storage and comparison circuit generates an error voltage by comparing the selection voltage and a reference voltage. The voltage storage and comparison circuit stores the error voltage temporarily and provides the temporarily stored error voltage as the pulse modulation control signal. | 02-17-2011 |
| 20110032278 | SOURCE DRIVER - A source driver including a data register, a level shifter, a gamma correction unit, a digital-to-analog converter and a buffer is provided. The data register stores a digital data signal. The level shifter pulls up the level of the digital data signal. The gamma correction unit provides a gamma curve. The digital-to-analog converter transforms the level-pulled-up digital data signal into an analog data signal with reference to the gamma curve. The buffer outputs the analog data signal to drive a corresponding data line. The level shifter, the gamma correction unit, the digital-to-analog converter and the buffer are all figured to receive a first set of reference voltages or a second set of reference voltages. | 02-10-2011 |
| 20110018888 | ADDRESSING METHOD AND STRUCTURE FOR MULTIPLE CHIPS AND DISPLAY SYSTEM THEREOF - Addressing method for multiple chips is provided. Each chip includes an input enable terminal, an output enable terminal, a data input terminal, and a clock terminal. The output enable terminal of a previous stage is connected to the input enable terminal of a next stage. The method includes setting an initial address to an address of each chip via a system; setting a state of each chip to a disable state; enabling the state of a first-one chip among the chips to an enable state, and setting the first chip as a previous-stage chip; updating the address of the previous-stage chip; enabling a next-stage chip connected after the previous-stage chip, in which the system controls the output enable terminal of the previous-stage chip to output an enable signal to enable the next-stage chip, according to the address of the previous-stage chip; and the updating the address of the next-stage chip. | 01-27-2011 |
| 20110018885 | METHOD AND APPARATUS FOR MIRRORING FRAME - A method and an apparatus for mirroring a frame are provided. The method is suitable for a display device having a first storage unit and a second storage unit. In the present method, pixel values of a pixel row of the frame are read from the first storage unit and written into the second storage unit. Then, the pixel values of the pixel row of the frame are read from the second storage unit and written back to the first storage unit. When performing one of foregoing reading and writing steps, the pixel values of the pixel row are read or written in a reverse direction to mirror the pixel row. Finally, foregoing steps are repeated to mirror each pixel row of the frame, so as to mirror the entire frame. | 01-27-2011 |
| 20110012571 | LOAD DRIVING APPARATUS - A load driving apparatus is provided. The load driving apparatus is configured to output an electrical signal to a load. The load driving apparatus includes a driver and an average voltage/current detector. The driver receives an input voltage and a control signal. The driver tunes the electrical signal according to the control signal. The average voltage/current detector receives the electrical signal outputted to the load and generates the control signal by comparing the electrical signal and a reference signal. | 01-20-2011 |
| 20110001491 | CAPACITANCE MEASUREMENT CIRCUIT AND METHOD - A capacitance measurement circuit and method are provided. A storage capacitor is pre-charged. Charge transfer is performed between an under-test capacitor and the storage capacitor. The storage capacitor is discharged and charged according to a relationship between a voltage of the storage capacitor and a reference voltage. The capacitance of the under-test capacitor is measured according to the voltage on the storage capacitor. | 01-06-2011 |
| 20100322512 | IMAGE PROCESSING APPARATUS AND METHOD THEREOF - An image processing apparatus and a method thereof are provided. The image processing apparatus includes a memory device and a first and a second image data transformation unit. A first image data is written into and read from the memory device. Each pixel value has a first data format. The first data format is compatible with a dedicated format accessible by the memory device. The first image data transformation unit transforms a second image data into the first image data. The second image data includes a plurality of pixel values each having a second data format. The second data format is not compatible with the dedicated format. The second image data transformation unit transforms the first image data into a third image data. The third image data includes a plurality of pixel values each having a third data format. The third data format is not compatible with the dedicated format. | 12-23-2010 |
| 20100322304 | MULTI-SOURCE FILTER AND FILTERING METHOD BASED ON H.264 DE-BLOCKING - A multi-source filter based on H.264 de-blocking includes the following units. A quantization parameter (qP) calculation unit receives an image data and calculates a qP. A boundary strength (bS) calculation unit receive the image data and calculates a bS. A block detector receives the image data and determines whether the image data falls in the block boundary. An image edge detector receives the image data and determines whether it is not belonged to an image edge region. An enabling unit receives the qP to determine whether to enable a de-blocking filtering operation. A determining unit filters the image data to output a new image data when determines that the image edge is not at the block boundary and the filtering operation is required. | 12-23-2010 |
| 20100321328 | COORDINATES ALGORITHM AND POSITION SENSING SYSTEM OF TOUCH PANEL - A position sensing system of a touch panel including a sensing unit and a decision unit is provided. When the touch panel is touched, the sensing unit obtains the sensing capacitances of p x-directional sensing lines and q y-directional sensing lines, wherein the sensing capacitances generated by these sensing lines exceed a threshold. The decision unit takes the central coordinates of the sensing lines with peak sensing capacitances as an x base coordinate and a y base coordinate, and adjusts the x base coordinate and the y base coordinate according to the ratios of the sensing capacitances of the other sensing lines to the peak sensing capacitance respectively to obtain an interpolated x coordinate and an interpolated y coordinate. | 12-23-2010 |
| 20100318753 | MEMORY ARCHITECTURE OF DISPLAY DEVICE AND READING METHOD THEREOF - A memory architecture of a display device including a display data memory block and a processor is provided. The display data memory block includes N sub-memories and N arbiters respectfully coupled to the N sub-memories, wherein N is a positive integer larger than 1. The processor is used for respectfully and continuously outputting corresponding N control signals and N address signals to the N arbiters. After receiving the corresponding control signals, the N arbiters respectfully output the corresponding address signals to corresponding sub-memories, such that the N sub-memories simultaneously access data respectfully according to the N address signals. | 12-16-2010 |
| 20100316108 | DEVICE AND METHOD OF DATA RECOVERY - A data recovery device and a data recovery method are provided. The data recovery device includes an equalizer, a slicer, a phase lock loop (PLL) circuit, a detection circuit, and a compensation circuit. The equalizer adjusts a radio frequency (RF) signal according to a compensation signal and outputs an equalized RF signal sliced by the slicer according to a slicing level to output an AC_RF signal with segments. The PLL circuit outputs a clock according to phases of the AC_RF signal. The detection circuit calculates and outputs time intervals in the segments according to the clock and detects and outputs sampling heights in the segments. The compensation circuit selects at least two of the sampling heights, calculates a ratio of the selected sampling heights according to the outputs of the detection circuit, and outputs the compensation signal according to a result of comparison between the ratio and a corresponding reference. | 12-16-2010 |
| 20100315556 | IMAGE PROCESSING CIRCUIT AND METHOD THEREOF - An image processing circuit and a method thereof are provided herein. The image processing circuit has a first scaling circuit, a plurality of line buffers, a first sharpness circuit, a second scaling circuit, and a second sharpness circuit. The first scaling circuit enlarges an input image along a first direction to generate a first enlarged image. The line buffers temporarily store the pixel values of a plurality of pixel rows of the first enlarged image. The first sharpness circuit vertically sharpens the first enlarged image to generate a first sharpened image. The second scaling circuit enlarges the first sharpened image along a second direction to generate a second enlarged image. The second sharpness circuit horizontally sharpens the second enlarged image to generate a second sharpened image. Accordingly, it is possible to use the line buffers having shorter data lengths to perform the vertical sharpening. | 12-16-2010 |
| 20100303376 | CIRCUIT AND METHOD FOR PROCESSING IMAGE - A circuit and a method for processing an image are provided. The circuit includes a weighting circuit and a sharpening circuit. The weighting circuit includes at least two adapters and a weight decider. The weighting circuit receives an input image. Each of the adapters respectively generates a weight according to an image property of the input image. The weight decider performs a logical calculation according to the weights generated by the adapters to generate a total weight. The sharpening circuit performs an image sharpening process on the input image according to the total weight to generate an output image. | 12-02-2010 |
| 20100299488 | DYNAMIC MEMORY ACCESS METHOD AND MEMORY CONTROLLER - A dynamic memory access method includes following steps. First, many data access commands are received. Each of the data access commands accesses a dynamic memory according to a page address and a bank address. Next, whether an access data to be accessed by the corresponding data access command is an instantaneous data or a non-instantaneous data is determined. Then, the page and bank addresses of each of the data access commands are respectively compared with a previously page and bank addresses at a previous time used for accessing the dynamic memory, such that an address hit status is obtained. Next, a service sequence is generated according to whether each of the data access commands is an instantaneous or instantaneous data and the address hit status of the commands. Finally, each of the data access commands is executed to access the dynamic memory sequentially according to the service sequence. | 11-25-2010 |
| 20100296378 | CALIBRATION CIRCUIT AND METHOD THEREOF FOR DATA RECOVERY - A calibration circuit and a calibration method thereof for data recovery are provided. The calibration circuit includes an amplitude detector, a period detector, and a compensation circuit. The amplitude detector samples amplitudes of a data signal according to a zero-crossing signal and outputs an amplitude signal accordingly. The period detector counts a clock signal according to the zero-crossing signal and outputs a period signal accordingly. The compensation circuit receives the amplitude signal, the period signal, and the data signal. The compensation circuit adjusts a phase of the data signal by calculating differences between a reference signal and the amplitude signal and between the reference signal and the period signal and outputs a calibrated data signal accordingly. Accordingly, a better recognition performance on the data signal is achieved by calibrating the data signal in real-time. | 11-25-2010 |
| 20100295996 | CIRCUIT AND METHOD FOR IMAGE PROCESSING - A circuit and a method for image processing are provided. The image processing circuit has an adaptor and a sharpening circuit. The adaptor has a processing unit and a weight generator. The processing unit receives an input video signal, and the input video signal has information of a plurality of pixels. The processing unit processes the input video signal to calculate a color difference value of a target pixel of the pixels. The weight generator generates a weighting signal according to the color difference value. The sharpening circuit performs a sharpening operation on the input video signal according to the weighting signal to generate a sharpened video signal. | 11-25-2010 |
| 20100289961 | IMAGE PROCESSING CIRCUIT AND IMAGE PROCESSING METHOD THEREOF - An image processing circuit and an image processing method thereof are disclosed. A difference value adaptor of the image processing circuit produces a weighing value and a flag value corresponding to the pixel according to the pixel difference value of each pixel of an input video signal. The image processing circuit judges which area among a first area, a second area and a third area the pixel difference value of each pixel falls in according to the flag value. The image processing circuit performs a low-pass filtering processing on the pixel having the pixel difference value falling in the first area, performs a high-pass filtering processing on the pixel having the pixel difference value falling in the second area and performs a luminance transient improvement processing (LTI processing) on the pixel having the pixel difference value falling in the third area. | 11-18-2010 |
| 20100289467 | POWER SUPPLY CIRCUIT AND METHOD THEREOF - In a normal mode, the power supply is fed back in a close loop, but in a power saving mode, the power supply is fed back in an open loop. When it is detected that the power supply is continuously fed back in the open loop and in a substantially zero output status, the power supply circuit enters a power down status. If the back-stage circuit needs power supply again, then the feedback is switched to the close loop and the power supply circuit enters the normal mode. | 11-18-2010 |
| 20100284619 | FACE DETECTION APPARATUS AND FACE DETECTION METHOD - A face detection apparatus and a face detection method thereof are provided. The face detection apparatus includes a rectangle integral image unit, a feature mapping unit and a cascade and score unit. The rectangle integral image unit provides a rectangle integral image according to an original image. The feature mapping unit determines a face candidate region according to rectangular face feature templates, and calculates feature values of the rectangular face feature templates according to the rectangle integral image. The cascade and score unit judges whether the face candidate region conforms to cascade conditions or not, and gives the face candidate region a score according to the feature values when the face candidate region conforms to the cascade conditions. The face candidate region is a non-face region if the score of the face candidate region is lower than a threshold value. | 11-11-2010 |
| 20100283896 | CIRCUIT AND METHOD FOR DETECTING MOTION PICTURES - A circuit for detecting motion pictures includes a first-stage motion picture detecting unit and a second-stage motion picture detecting unit. The first-stage motion picture detecting unit analyzes a current image frame and a previous image frame to calculate a first motion value associated with the current image frame. The second-stage motion picture detecting unit receives the first motion value, compares the first motion value against an adjusted motion value, and outputs and stores a larger one as a second motion value. The adjusted motion value is a value derived by adjusting an adjacent previous second motion value. | 11-11-2010 |
| 20100278385 | FACIAL EXPRESSION RECOGNITION APPARATUS AND FACIAL EXPRESSION RECOGNITION METHOD THEREOF - A facial expression recognition apparatus and a facial expression recognition method thereof are provided. The facial expression recognition apparatus comprises a gray image generating unit, a face edge detection unit, a motion skin extraction unit, a face contour generating unit and a facial expression recognition unit. The gray image generating unit generates a gray image according to an original image. The face edge detection unit outputs a face edge detection result according to the gray image. The motion skin extraction unit generates a motion skin extraction result according to the original image, and generates a face and background division result according to the motion skin extraction result. The face contour generating unit outputs a face contour according to the gray image, the face edge detection result and the face and background division result. The facial expression recognition unit outputs a facial expression recognition result according to the face contour. | 11-04-2010 |
| 20100277214 | DEVICE AND METHOD FOR SIGNAL GENERATION - A signal generator and a method thereof for generating signals are provided. The signal generator includes a pulse width signal generation module and a signal generating module. The pulse width signal generation module generates a first pulse width signal according to a first pulse signal and a second pulse signal. A first signal with a first duty ratio is generated by the signal generating module based on the first pulse width signal. The first duty ratio is equal to a product of a duty ratio of the first pulse signal and a duty ratio of the second pulse signal. | 11-04-2010 |
| 20100272228 | SHIFT REGISTER APPARATUS - A shift register apparatus is provided. Each of shift registers within the shift register apparatus of the present invention is only constituted by a few of active and passive elements without using conventional digital logic elements, and even the passive element are not required at some conditions. Therefore, the layout area occupied/consumed by each of the shift registers of the present invention is relatively smaller than that of the conventional shift register constituted by a CMOS D-flip-flop, and thus a fabrication cost can be reduced. | 10-28-2010 |
| 20100265393 | DE-INTERLACING APPARATUS AND METHOD AND MOVING CAPTION COMPENSATOR - A de-interlacing method includes the following steps. A de-interlacing pixel datum of a target pixel is obtained according to a current field and multiple correlated fields. A caption region of the current field is defined according to the fields, and a region motion vector and a region confidence are correspondingly obtained. When the target pixel belongs to the caption region, a compensation pixel datum of the target pixel is obtained by motion compensation according to at least a part of the fields and the region motion vector, and the target pixel is judged as a foreground pixel or a background pixel to output a compensation select signal according to the region motion vector and the region confidence. The de-interlacing pixel datum or the compensation pixel datum is outputted as a correlated pixel datum of the target pixel according to the compensation select signal. | 10-21-2010 |
| 20100260434 | INTERPOLATION METHOD AND INTERPOLATION CIRCUIT - An interpolation method and an interpolation circuit are provided. The interpolation method calculates a difference between values of a first point and a second point and calculates an absolute value of the difference. Then, the absolute value of the difference is used to mix a first function and a second function to obtain a transformation function, which is then used to calculate an interpolation value of an interpolation point between the first point and the second point. Accordingly, the present invention may obtain a result close to high order interpolation without increasing hardware expense. | 10-14-2010 |
| 20100254459 | INTRA PREDICTION MODE SELECTING APPARATUS AND METHOD THEREOF - An intra prediction mode selecting method is disclosed. First, a compress profile and a frame resolution of a frame data are received. Next, a plurality of corresponding prediction modes are selected according to the compress profile and the frame resolution, and the selected prediction modes are scheduled for sequentially calculating a plurality of corresponding cost functions. Finally, the cost functions are compared to select one of the prediction modes to serve as a prediction mode of the frame data. | 10-07-2010 |
| 20100245332 | DISPLAY PANNEL - A display panel is disclosed has a plurality of source data lines and at least one first gate scan line and includes at least one first display row and at least one second display row. The first display row includes a plurality of first pixel units, and each of the first pixel units includes a first driving transistor. Gates of the first driving transistors are commonly coupled to the first gate scan line, and first sources/drains of the first driving transistors are sequentially coupled to odd columns of the source data lines. Moreover, the second display row includes a plurality of second pixel units, and each of the second pixel units includes a second driving transistor. Gates of the second driving transistors are commonly coupled to the first gate scan line, and first sources/drains of the second driving transistors are sequentially coupled to even columns of the source data lines. | 09-30-2010 |
| 20100239164 | METHOD AND APPARATUS FOR REDUCING SPATIAL NOISE OF IMAGES - A method for reducing spatial noise of images includes the following steps. A target pixel is obtained and an operating block is built accordingly. Pixel values of the target pixel and multiple neighboring pixels in the operating block are operated to obtain a variance corresponding to the operating block. Whether the target pixel is characteristic is judged according to the variance. If the target pixel is not characteristic, the multiple pixels in the operating block are filtered to obtain a modulated pixel value. The pixel value of the target pixel is updated to the modulated pixel value. | 09-23-2010 |
| 20100239018 | VIDEO PROCESSING METHOD AND VIDEO PROCESSOR - A video processing method and a video processor are disclosed. The video processor includes a processing device, and the video processor is coupled to a buffer. The video processor reads a plurality of current frames to be coded and a plurality of search windows, and performs motion estimation on a plurality of macroblocks (MBs), wherein the MBs are co-located within the current frames to be coded and the current frames to be coded have no data dependence on each other. | 09-23-2010 |
| 20100225788 | CIRCUIT AND METHOD FOR PROCESSING IMAGE ABNORMALITY CAUSED BY POWER SUPPLY - A method for processing an image abnormality caused by power supply is provided, which is used in a digital image-capturing apparatus. The method can be described as follows. First, power of the digital image-capturing apparatus is turned on. Next, a line data of an image being captured is started to be transmitted, wherein the line data has a dummy pixel region and an effective pixel region, and the dummy pixel region is first transmitted, and then a plurality of pixel data of the effective pixel region is transmitted. Next, a horizontal driving current to be input to a horizontal driver is processed, so that the horizontal driving current substantially approaches a stable state before the effective pixel region is output. Finally, the above steps are repeated for continually transmitting a next line data of the image being captured until the image of the digital image-capturing apparatus is completely transmitted. | 09-09-2010 |
| 20100208828 | PICTURE DECODER, REFERENCE PICTURE INFORMATION COMMUNICATION INTERFACE, AND REFERENCE PICTURE CONTROL METHOD - A reference picture information communication interface implemented in a hardware/software integrated H.264 encoder/decoder is provided. The reference picture information communication interface includes a reference state register (RSR) and a reconstruct address register (RAR). The RSR has N bits, wherein N represents the maximum number of reference pictures supported by the H.264 encoder/decoder. The RSR is used by the hardware for notifying a software decoded picture buffer (DPB) controller about a current reference picture existence information. The RAR is used by the software for notifying the H.264 encoder/decoder about an address of a reconstruction information of a currently decoded picture in a memory space. | 08-19-2010 |
| 20100207963 | GAMMA VOLATGE GENERATING APPARATUS AND GAMMA VOLTAGE GENERATOR THEREOF - A gamma voltage generator including an operation amplifier, a first reference impedance unit, a second reference impedance unit, a first variable impedance unit, a second variable impedance unit, and a select unit is provided. The operation amplifier generates an amplified output voltage. The first reference impedance unit receives a first gamma voltage, and the second reference impedance unit receives a second gamma voltage. The first variable impedance unit provides a first variable impedance, and the second variable impedance unit receives the first gamma voltage and provides a second variable impedance. The select unit selects the amplified output voltage or the first gamma voltage according to a control signal to generate an interpolated gamma output voltage. | 08-19-2010 |
| 20100207671 | FREQUENCY DIVIDING CIRCUIT - A frequency dividing circuit performs a frequency dividing operation on N input clock signals to obtain N output clock signals, wherein N is a natural number greater than 1. The frequency dividing circuit includes a frequency divider and a flip-flop. The frequency divider samples an initial signal according to a first input clock signal of the N input clock signals to accordingly generate a first output clock signal of the N output clock signals. The initial signal corresponds with an inverse signal of the first output clock signal. The flip-flop samples the first output clock signal to accordingly generate a second output clock signal of the N output clock signals according to a second input clock signal of the N input clock signals. | 08-19-2010 |
| 20100199078 | METHOD OF SAFE AND RECOVERABLE FIRMWARE UPDATE AND DEVICE USING THE SAME - A safe and recoverable firmware update method which for a remote embedded electronic device and the device thereof. The method includes reading an update status in a flash memory, and determining the update status. If the update status is “DEFAULT”, a default firmware is executed. If the update status is not “DEFAULT”, the update status is further determined if it is “UPDATED”. If the update status is “UPDATED”, a configuration area is set as “BOOTING” and a new firmware is executed. If the update status is not “UPDATED”, the update status is determined if it is “RUNNEW”. If the update status is “RUNNEW”, a new firmware and an update validation method are executed. If the update validation method gets an update completion validation message, the update status is set as “RUNNEW”. If the update status is not “RUNNEW”, a default firmware is executed. | 08-05-2010 |
| 20100195739 | ADAPTIVE CANONICAL HUFFMAN DECODER AND METHOD THEREOF AND VIDEO DECODER - An adaptive canonical Huffman decoder including a symbol index generator, a content selector, and a symbol table buffer circuit is illustrated. The content selector outputs a content selection signal. The symbol table buffer circuit reads a corresponding symbol table from a plurality of symbol tables stored in an external memory according to the content selection signal and stores the corresponding symbol table. The symbol index generator stores decoding information of a plurality of encoding tables and selects a corresponding decoding information among all the decoding information according to the content selection signal. Then, the symbol index generator receives a bit stream and decodes the bit stream according to the corresponding decoding information to obtain a symbol index. After that, the symbol table buffer circuit obtains an output symbol from the corresponding symbol table according to the symbol index. | 08-05-2010 |
| 20100188323 | OUTPUT BUFFER AND SOURCE DRIVER USING THEREOF - An output buffer for providing an output voltage signal includes an operational amplifier, a controller and a power circuit. The operational amplifier provides the output voltage signal according to an input voltage signal. The controller judges whether a reference signal corresponding to the input voltage signal satisfies an energy-saving condition, and triggers an energy-saving operation event if yes, or triggers a normal operation event if not. The power circuit provides an energy-saving power signal to drive the operational amplifier in response to the energy-saving operation event and provides a normal power signal to drive the operational amplifier in response to the normal operation event, such that the operational amplifier provides the output voltage signal according to the input voltage signal. A voltage level of the normal power signal is higher than a voltage level of the energy-saving power signal. | 07-29-2010 |
| 20100183241 | RESTORATION METHOD FOR BLURRED IMAGES USING BI-LEVEL REGIONS - A blind image restoration method restores a motion blurred image and a blur kernel is estimated based on an intrinsic bi-level image region of the motion blurred image. In addition, the blur kernel is iteratively estimated. When the blur kernel is iteratively estimated, bi-level image priors are introduced to achieve better image restoration. | 07-22-2010 |
| 20100177089 | GATE DRIVER AND DISPLAY DRIVER USING THEREOF - A gate driver for driving k pixel rows of a liquid crystal display panel, wherein k is a natural number greater than 1. The gate driver includes a shift register circuit and an output logic circuit. The shift register circuit outputs an i | 07-15-2010 |
| 20100171749 | DRIVING APPARATUS OF DISPLAY AND OVER DRIVING METHOD THEREOF - An over driving method for a display is disclosed. The steps of the method mentioned above includes the following. A power saving parameter is set equal to an initial value, a current frame data is received, and a previous frame data is read from a memory. Afterward, the power saving parameter is updated by comparing the current frame data and the previous frame data. Moreover, an over driving process is executed to the display according to the comparison result for the power saving parameter and a reference value. | 07-08-2010 |
| 20100171735 | DATA DRIVING CIRCUIT FOR FLAT DISPLAY PANEL WITH PARTIAL MODE AND METHOD FOR PROCESSING PIXEL DATA OF PARTIAL WINDOW - A data driving circuit for a flat display panel with a partial mode and a method for processing pixel data of a partial window. The driving circuit includes an input register and a data collection circuit. When the driving circuit is in the partial mode, it determines whether to sequentially read pixel data for pixels of the pixel data of the window from a data area according to a boundary of the window and a scan count, and temporarily stores the pixel data into the data collection circuit. When the scan count indicates that the window is to be displayed, the data collection circuit selects pixel data for pixels from the temporarily stored pixel data for the pixels and accordingly produces pixel data for pixels to the input register so as to sequentially output the pixel data of the window to drive the display panel to display the window. | 07-08-2010 |
| 20100164913 | DISPLAY SYSTEM, SOURCE DRIVING APPARATUS AND METHOD OF BLACK INSERTION THEREOF - A display system, a source driving apparatus, and a method of black insertion are provided. The apparatus includes a data channel, a black-insertion-data line, a first and a second selector. In a first period, the first selector electrically connects the data channel to a first data line in a display panel, and the second selector electrically connects the black-insertion-data line to a second data line in the display panel. In a second period, the first selector electrically connects the data channel to the second data line, and the second selector electrically connects the black-insertion-data line to the first data line. | 07-01-2010 |
| 20100164465 | LOW VOLTAGE BANDGAP REFERENCE CIRCUIT - A bandgap reference circuit provided for generating an output reference substantially independent of temperature and power includes a first reference signal generator, a first impedance, a second reference signal generator and a second impedance. The first reference signal generator can generate a first reference signal proportional to absolute temperature. The second reference signal generator generates a second reference signal complementary to absolute temperature according to the first reference signal. The second impedance, the serially-coupled first impedance and second reference signal generator, and the first reference signal generator are coupled in parallel between two nodes. The bandgap reference circuit outputs the output reference voltage through the two nodes. According to an embodiment of the invention, the bandgap reference circuit can be implemented by an additional circuit of lower complexity to obtain a lower reference voltage. | 07-01-2010 |
| 20100156358 | OSCILLATOR CIRCUIT - An oscillator circuit including a charge/discharge unit, a capacitance amplifier, and a level detection circuit is provided. The charge/discharge unit is used to receive a control signal, and perform a charge or discharge operation on a charge/discharge terminal according to the control signal. The capacitance amplifier, including a first impedance, a second impedance, a voltage follower, and a capacitor, is capable of providing an equivalent capacitance with amplifying characteristics. An input terminal of the level detection circuit is electrically connected to the charge/discharge terminal of the charge/discharge unit, and the level detection circuit generates the control signal to the charge/discharge unit according to the charge/discharge terminal of the charge/discharge unit. The oscillator circuit of the present invention may use a capacitance with a smaller level to provide an equivalent capacitance with amplifying characteristics, and thus achieve an oscillator function. | 06-24-2010 |
| 20100156316 | LIGHT SOURCE APPARATUS AND DRIVING CIRCUIT THEREOF - A light source apparatus and a light source driving circuit are provided. The light source driving circuit includes an operation amplifier (OP-AMP), a transistor, and a switch unit. A first input terminal and an output terminal of the OP-AMP couple to a predetermined voltage and a control terminal of the transistor, respectively. A first terminal of the transistor couples to a light source. The switch unit includes a first signal terminal receiving a first voltage greater than a predetermined voltage, a second signal terminal coupled to a second input terminal of the OP-AMP, a third signal terminal coupled to a second terminal of the transistor, and an enabling terminal receiving a driving voltage. A voltage of the third signal terminal or a voltage of the first signal terminal is determined to transmit to the second signal terminal in accordance with the driving voltage. | 06-24-2010 |
| 20100156309 | LED ILLUMINANT DRIVING CIRCUIT AND AUTOMATIC BRIGHTNESS COMPENSATION METHOD THEREOF - An LED illuminant driving circuit and an automatic brightness compensation method thereof are provided herein. The automatic brightness compensation method includes: providing a target value; detecting an operation period of a pulse of an output of the LED illuminant driving circuit, the pulse is adapted to an LED illuminant for making the light emitting; deciding a peak value according to the target value and the operation period; and setting a peak level of the pulse according to the peak value. The LED illuminant driving circuit and the automatic brightness compensation method thereof provides a stable average current/voltage to the LED illuminant and avoids brightness variations of the light emitting. | 06-24-2010 |
| 20100156177 | DRIVING CIRCUIT AND METHOD FOR DRIVING CURRENT-DRIVEN DEVICES - At the driving initiation, whether the output channels are enabled or disabled is determined by judging whether the voltages of the output channels are changed by a charging or discharging operation. The current output sources corresponding to the disabled output channels are turned off for power-saving. In the voltage conversion, the status of the disabled output channels is ignored, for accurately control of the voltage conversion. | 06-24-2010 |
| 20100150231 | APPARATUS FOR REFERENCE PICTURE RESAMPLING GENERATION AND METHOD THEREOF AND VIDEO DECODING SYSTEM USING THE SAME - The exemplary embodiments of the present invention are direct to a method for generating a resampling reference picture and an apparatus and video decoding system using this method. The video image decoding system is used to decode a bit stream, so as to obtain a current frame. The method for generating a resampling reference picture includes following steps: (a) looking ahead specific information of next x frames of the current frame in the bit stream; (b) determining whether to generate a resampling reference picture according to the specific information of the next x frames. | 06-17-2010 |
| 20100128173 | APPARATUS AND METHOD FOR MOTION ADAPTIVE DEINTERLACING - An apparatus and method for motion adaptive deinterlacing are provided. According to the method, a mean motion of a target pixel is obtained according to the target pixel and multiple neighboring pixels. A specific check area is obtained by setting the target pixel as a center and extending toward both sides of a first direction when the mean motion is higher than a first threshold value. The specific check area stops extending in reaching a pixel with a motion lower than a second threshold value. The second threshold value is lower than the first threshold value. The specific check area stops extending on a tail side of the first direction by reaching a first specific number of pixels from the target pixel. Combing of the specific check area is checked to determine a deinterlacing method for pixels within the specific check area. | 05-27-2010 |
| 20100128172 | Apparatus and method for motion adaptive deinterlacing - An apparatus and method for motion adaptive deinterlacing is provided. The apparatus includes a motion average unit, a check area defining unit, and a combing check unit. The motion average unit is configured to obtain a weighted mean motion of a target pixel by performing weighted mean for motions of the target pixel and a plurality of neighboring pixels according to similarity of the target pixel and the neighboring pixels. The check area defining unit is configured to search for a specific check area according to the weighted mean motion. The combing check unit is configured to check combing of the specific check area for a deinterlacing format determining unit to determine a deinterlacing method for the pixels within the specific check area. | 05-27-2010 |
| 20100128044 | DATA PROCESSING CIRCUIT AND DISPLAY USING THE SAME - A data processing circuit for driving a display panel is provided. The data processing circuit includes a main control circuit and a display driver. The main control circuit includes a processor for providing N*M pieces of image data. The display driver includes a display controller, a frame buffer and a scan register. The display controller stores the N*M pieces of image data in the frame buffer and subsequently scans the image data into the corresponding regions of the display panel. The frame buffer records and indicates the row and column positions of the pixel on the display panel currently scanned by the display controller. The processor can read the scan register to obtain the scan information and determines the writing timing of the frame buffer according to the scan information in order to synchronize the main control circuit and the display driver. | 05-27-2010 |
| 20100117721 | GENERATOR AND METHOD FOR GENERATING REFERENCE VOLTAGE AND REFERENCE CURRENT - A generator for generating reference voltage and reference current includes a reference voltage generating circuit for generating a first voltage and a second voltage, which are in combination to produce a reference voltage. The first voltage and the second voltage are respectively having a first-direction response variation and a second-direction response variation, according to a temperature variation. A voltage-to-current inverting circuit is coupled to the reference voltage generating circuit for generating a first current, which has the first-direction response variation as the temperature variation, according to the first voltage. An adding circuit is coupled to the reference voltage generating circuit and the voltage-to-current inverting circuit to obtain a second current corresponding to the second voltage from the reference voltage generating circuit. The first current and the second current are added to have a reference current. The second current has the second-direction response variation as the temperature variation. | 05-13-2010 |
| 20100117618 | OVER CURRENT PROTECTION CIRCUIT AND POWER CONVERTER USING THE SAME - An over current protection circuit and a power converter using the same. The over current protection circuit includes a soft start cell and an operational amplifier. The soft start cell outputs a soft start signal according to a direct current (DC) level, and the soft start signal increases progressively to the DC level in a soft start interval. The operational amplifier outputs an over current signal to a feedback control circuit according to the soft start signal and an inductance current of a switching converter so that a duty cycle of a driving signal from the feedback control circuit increases progressively in the soft start interval. | 05-13-2010 |
| 20100110248 | CORRELATED DOUBLE SAMPLING CIRCUIT - A correlated double sampling (CDS) circuit for sampling first and second pixel signals, which are respectively transmitted via first and second data lines, in a pixel array. The CDS circuit includes first and second sampling circuits, an amplifier circuit and a control circuit. The control circuit controls the first sampling circuit to sample a reset level and a data level of the first pixel signal in a first sampling period, and controls the second sampling circuit to sample a reset level and a data level of the second pixel signal in a second sampling period. The control circuit controls the amplifier circuit to output the reset level and the data level of the first pixel signal in a first output period, and output the reset level and the data level of the second pixel signal in a second output period. | 05-06-2010 |
| 20100104180 | IMAGE NOISE REDUCTION METHOD AND IMAGE PROCESSING APPARATUS USING THE SAME - An image noise reduction method is provided. An image is received. A first-stage process is performed to the image to obtain a luminance information Y and a color information Cb and/or Cr corresponding to a pixel array in an YCbCr domain. A second-stage process is performed to the luminance information Y to reduce at least a luminance noise. A third-stage process is performed to the color information Cb and/or Cr to reduce at least a color noise. The luminance information Y and the color information Cb and/or Cr are then combined. | 04-29-2010 |
| 20100103199 | DRIVING APPARATUS - A driving apparatus used for a display is disclosed. The driving apparatus includes a voltage divider, a first and a second digital to analog converter, and a first voltage amplifier. The voltage divider divides a first voltage to generate a positive polarity gamma voltage and a negative polarity gamma voltage. The first digital to analog converter converts a first gray level signal to a first analog gray level signal. The second digital to analog converter converts a second gray level signal to a second analog gray level signal. The first voltage amplifier receives one of the first or the second analog gray level signal. Wherein, the voltage divider, the first and the second digital to analog converters receive a first voltage as an operating voltage, and the first voltage amplifier receives a second voltage as an operating voltage. Moreover, the second voltage is larger than the first voltage. | 04-29-2010 |
| 20100103163 | DRIVER APPARATUS - A driver apparatus applied on a display is disclosed. The driver apparatus includes a voltage converter, an input level shift circuit, at least one input logic circuit, and at least one output level shifter. The voltage converter receives a first voltage, a ground voltage, and a second voltage, and generates an internal voltage according to the first voltage, the ground voltage, and the second voltage. The input level shift circuit receives an input signal, and generates a level shift input signal transiting between the first voltage and the second voltage according to the input signal. The input logic circuit receives the internal voltage, and generates an internal output signal transiting between the internal voltage and the second voltage according to the level shift input signal. The output level shifter generates a driving signal transiting between a third voltage and the second voltage according to the internal output signal. | 04-29-2010 |
| 20100085085 | FREQUENCY SYNTHESIZER, FREQUENCY PRESCALER THEREOF, AND FREQUENCY SYNTHESIZING METHOD THEREOF - A frequency synthesizer is provided, including a voltage-controlled oscillator (VCO), a frequency prescaler, a divide-by-2.5 circuit, and a selector. The VCO determine the frequency of a first signal according to an input voltage. The frequency prescaler determines the frequency of a second signal to be the frequency of the first signal divided by 3, 3.5, or 4 according to a first selection signal, and the frequency prescaler also determines the frequency of a third signal to be the frequency of the first signal divided by 6, 7, or 8 according to the first selection signal. The divide-by-2.5 circuit generates a fourth signal, wherein the frequency of the fourth signal is the frequency of the first signal divided by 2.5. The selector selects one of the second signal, the third signal, and the fourth signal as a fifth signal according to a second selection signal. | 04-08-2010 |
| 20100053445 | STATE DETECTOR OF VIDEO DEVICE AND STATE DETECTION METHOD THEREOF - A state detector of a video device and a state detection method thereof are provided. The state detector includes a first chroma detector, a second chroma detector, and a controller. The first chroma detector and the second chroma detector operate in a first state among a plurality of states. When the second chroma detector is not capable of processing an input signal normally, the controller controls the second chroma detector to switch between the states until the second chroma detector operates in a second state to process the input signal normally, and the first chroma detector is set to operating in the second state. As a result, the quality of a displayed image is improved. | 03-04-2010 |
| 20100052808 | ACTIVE BALUN CIRCUIT - An active balun circuit is provided, which includes an input end, a first and a second output ends, a first and a second transistors, a feedback capacitor, and a current source. The input end receives an input signal. A drain of the first transistor is coupled to the second output end, and a gate of the first transistor is coupled to the input end. A gate of the second transistor is coupled to a ground end, and a drain of the second transistor is coupled to the first output end. The feedback capacitor is coupled between the second output end and the gate of the second transistor. One end of the current source is coupled to sources of the first and second transistors, and the other end of the current source is coupled to the ground end. | 03-04-2010 |
| 20100045585 | METHOD FOR ELIMINATING DEFICIENT IMAGE ON LIQUID CRYSTAL DISPLAY - A method for eliminating deficient image on a liquid crystal display (LCD) is provided. The method is used for eliminating the deficient image generated during the shutdown period in a normally white LCD. The method comprises the following steps. First, when a power indication signal changes from a first state to a second state, a black frame is displayed in a first period of time. At the end of the first period, a white frame is displayed in a second period of time. At the end of the second period, the supply of a negative scan voltage is stopped and a white frame is displayed in a third period of time. At the end of the third period, the power is turned off. | 02-25-2010 |
| 20100040181 | APPARATUS AND METHOD FOR FILTERING NOISE IN IMAGE SIGNAL - An apparatus and a method for filtering noise in an image signal are provided. The apparatus includes an analog-to-digital converter (ADC), a first filter, and a second filter. The ADC receives the image signal and converts the image signal into a digital signal. The first filter receives the digital signal and filters a first noise portion of the digital signal to generate a first signal. The second filter coupled to the first filter receives the first signal and filters a second noise portion of the first signal, wherein the first noise portion is a sampled-based impulse noise, and the second noise portion is a line-based impulse noise. | 02-18-2010 |
| 20100039842 | POWER CONVERSION SYSTEM AND POWER CONVERSION METHOD THEREOF - A power conversion system and a power conversion method thereof. The power conversion system includes a driving unit, a control unit, a first direct current (DC) power supply circuit and a second DC power supply circuit. The control unit controls the driving unit to drive a load. The first DC power supply circuit converts an alternating current (AC) power into a first DC power outputted to the driving unit, and the second DC power supply circuit converts the AC power into a second DC power outputted to the control unit. | 02-18-2010 |
| 20100039361 | GATE SWITCH APPARATUS FOR AMORPHOUS SILICON LCD - A gate switch apparatus of a-Si LCDs is provided. The gate switch apparatus is suitable for switching a plurality of sub gate lines and disposed in two rim spaces of a display to make a-Si TFT switch with less impedance. According to a switch driving timing, a plurality of sub gate lines are able to share a single gate line, which saves cost and reduces the difficulty in the manufacturing process. | 02-18-2010 |
| 20100033161 | VOLTAGE DETECTING CIRCUIT AND VOLTAGE DETECTING METHOD - Voltage detecting circuit for detecting a voltage state of a voltage source includes a first route, a second route and a comparator. First route is between a voltage source and a ground voltage, having a first current source and a first MOS resistor, connected in series at a first node with outputting a first voltage. Second route is between the voltage source and the ground voltage, having a second current source and a second MOS resistor, connected in series at a second node with outputting a second voltage. The comparator receives the first voltage and the second voltage and outputs the voltage state. The comparator includes a current offset circuit for producing an offset voltage to the second voltage. A voltage comparing unit compares the first voltage and the second voltage with offset by a voltage difference, and outputs the voltage state according to variance of the voltage difference. | 02-11-2010 |
| 20100027722 | WIRED SIGNAL RECEIVING APPARATUS - A wired signal receiving apparatus including a signal receiver, a signal peak detector, and a signal comparator is disclosed. The signal receiver includes an operation current detecting circuit for detecting an operation current. The signal receiver further receives a transmission signal. The signal peak detector receives the operation current, detects a peak thereof, and generates a peak current. The signal comparator compares a reference signal and the peak current to generate an output current for regulating the operation current. | 02-04-2010 |
| 20100021083 | STATIC IMAGE PRESENTATION METHOD - A static image presentation method is disclosed. The static image mentioned above has as least one human face pattern. The static image presentation method includes: firstly, identifying the human face pattern on the static image to obtain a human face pattern center and a human face pattern range; and then, presenting the static image by zooming in the static image according to the human face pattern center and the human face pattern range. | 01-28-2010 |
| 20100007287 | MULTI-CHANNEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF - A driving method of a multi-channel driving circuit includes: receiving multiple driving signals corresponding to multiple to-be-driven elements, providing multiple randomized time delays, respectively adjusting the driving signals according to the randomized time delays to generate multiple delayed driving signals, and respectively driving the corresponding to-be-driven elements according to the delayed driving signals. | 01-14-2010 |
| 20100002143 | DISPLAY APPARATUS AND PHASE DETECTION METHOD THEREOF - A display apparatus including an analog-to-digital converter (ADC) module, a phase detecting module, and a clock generator is provided. The ADC module is used to receive a first analog video signal, and convert the first analog video signal into a digital signal according to a clock signal. The first analog video signal includes a first synchronous information and a first video information. The phase detecting module is used to receive the digital signal, and output a phase adjustment signal according to a part of the digital signal corresponding to the first synchronous information. The clock generator is used to output the clock signal according to the phase adjustment signal. | 01-07-2010 |
| 20090322667 | Data driver - A data driver includes two data processing circuits for respectively providing positive and negative pixel voltages according to first and second pixel data, and a multiplexer circuit including multiplexer units. Each multiplexer unit has first and second input terminals respectively receiving the positive and negative pixel voltages, and an output terminal coupled to a data line. A first switching device has first and second switches serially coupled between the first input and output terminals. A node between the first and second switches is selectively grounded via a third switch. A second switching device has fourth and fifth switches serially coupled between the second input and output terminals. A node between the fourth and fifth switches is selectively grounded via a sixth switch. When the first and second switches turn on, the sixth switch turns on. When the fourth and fifth switches turn on, the third switch turns on. | 12-31-2009 |
| 20090319185 | Navigation device with global position system and navigation method thereof - A navigation device with a global position system (GPS) includes an information input module and a global position system module. The information input module includes an image fetching unit and an image recognition unit. The image fetching unit fetches a pattern of an external object to produce image data. The image recognition unit transfers the image data into input data. The global position system module receives location position data associated with a present location of the navigation device, and provides navigation information according to the location position data and the input data. | 12-24-2009 |
| 20090315912 | METHOD FOR ADJUSTIG COLOR SATURATION AND IMAGE DISPLAYING SYSTEM APPLYING THE SAME - A method for adjusting color saturation, adapted for color adjustment of a pixel in a color space, is provided. The method includes: determining a color cube in the color space; selecting one from a plurality of diagonals of the color cube as a primary diagonal, and setting the primary diagonal at a vertical axis of the color space; determining a hue azimuth angle and a height in the color cube desired by the pixel; determining a reference point at an outermost periphery of the color cube corresponding to the azimuth angle, and obtaining a reference height and a reference horizontal distance of the reference point distant from the primary diagonal; and obtaining a color saturation value of the pixel by multiplying the reference horizontal distance with a ratio between the reference height and the height of the pixel. | 12-24-2009 |
| 20090315819 | SOURCE DRIVER AND LIQUID CRYSTAL DISPLAY - A source driver and a liquid crystal display are provided. The source driver includes a plurality of pads, a first conducting wire, a second conducting wire, a plurality of first digital-to-analog converters (DACs), and a plurality of second DACs. The first conducting wire is coupled to a first voltage and the first DACs. The second conducting wire is coupled to a second voltage and the second DACs. The first DACs are disposed in a first layer. Output terminals of the first DACs are respectively coupled to a plurality of first pads included in the said pads. The second DACs are disposed in a second layer above the first layer. Output terminals of the second DACs are respectively coupled to a plurality of second pads included in the said pads. Thereby, the transmission quality of the conducting wires for transmitting signals is increased. | 12-24-2009 |
| 20090315475 | LIGHT SOURCE APPARATUS AND LIGHT SOURCE ADJUSTING MODULE - A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source. | 12-24-2009 |
| 20090303755 | POWER CONVERTER APPARATUS - A power converter apparatus for receiving an input voltage and produces an output voltage by converting includes a switching-type voltage converting circuit circuit and a voltage level tuning circuit. The switching-type voltage converting circuit circuit includes an inductor, a switch and a synchronous rectifier, wherein the switch is for disabling/enabling the energy-storing operation conducted by the inductor. The synchronous rectifier produces the output voltage by using the stored electrical energy during the above-mentioned energy-storing operation. Besides, the voltage level tuning circuit is across coupled onto the switch for reducing the voltage difference between the two terminals of the switch. | 12-10-2009 |
| 20090303217 | TRANSMISSION INTERFACE FOR REDUCING POWER CONSUMPTION AND ELECTROMAGNETIC INTERFERENCE AND METHOD THEREOF - The exemplary examples of the present invention provide a transmission interface and method thereof for reducing power consumption and electromagnetic interference. The transmission interface is used in the Liquid Crystal Display (LCD), and the LCD has x source drivers. The i | 12-10-2009 |
| 20090297057 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus and a method thereof are introduced herein. In the method, an image is divided into a plurality of blocks, and a corresponding image processing ratio is set to each of the blocks, wherein each of the blocks includes a plurality of image unit data. Next, the image processing ratios are stored in a filter table, wherein the image unit data of each of the blocks has the corresponding image processing ratio. Next, the filter table is read out and decoded to generate a plurality of filter coefficients, and the corresponding image unit data is obtained according to each of the filter coefficients. Next, filter operation is performed to the corresponding image data and the filter coefficient for outputting a filter operated image data. The image processing ratio can be a zoon ratio or a blur ratio. | 12-03-2009 |
| 20090290066 | SIGNAL ADJUSTING CIRCUIT AND VIDEO APPARATUS THEREOF - A signal adjusting circuit and a video apparatus thereof are provided. The signal adjusting circuit includes a delay unit, a minimum value acquisition device, and a first operating unit. The delay unit receives a digital signal and delays the digital signal for N periods to serve as a delay signal. The minimum value acquisition device receives the digital signal and acquires a minimum value of the digital signal in every N periods. The first operating unit is coupled to the delay unit and the minimum value acquisition device for operating the delay signal with the minimum value to obtain an adjusting signal. | 11-26-2009 |
| 20090289702 | CURRENT GENERATOR - A current generator, including a chopper stabilization operational amplifier, a transistor, and an impedance unit is provided. The chopper stabilization operational amplifier includes a first input terminal, a second input terminal, and an output terminal. The transistor includes a gate coupled to the output terminal of the chopper stabilization operational amplifier, a first source/drain coupled to the first input terminal of the chopper stabilization operational amplifier, and a second source/drain serving as a current output terminal of the current generator. The impedance unit includes a first terminal coupled to the first source/drain of the transistor, and a second terminal coupled to a first voltage. | 11-26-2009 |
| 20090289688 | SIGNAL ADJUSTING CIRCUIT - A signal adjusting circuit is provided. The signal adjusting circuit includes a first operational unit, a second operational unit, an auto-gain controller (AGC), a first clamp circuit, and a second clamp circuit is provided. The first operational unit performs an operation to a digital signal and a first gain value, to obtain a first adjusting signal. The second operational unit performs an operation to the digital signal and a second gain value, to obtain a second adjusting signal. The AGC generates a third gain value according to the first adjusting signal. The first clamp circuit receives and restricts the third gain value between a first upper limit and a first lower limit for generating the first gain value. The second clamp circuit receives and restricts the third gain value between a second upper limit and a second lower limit for generating the second gain value. | 11-26-2009 |
| 20090289675 | DIFFERENTIAL TRANSMITTER AND AUTO-ADJUSTMENT METHOD OF DATA STROBE THEREOF - A differential transmitter and an auto-adjustment method of data strobe thereof are provided. The differential transmitter includes a phase-detecting unit, a switching unit, a rising edge strobe unit, and a falling edge strobe unit. The phase-detecting unit detects a phase relation between a clock signal and a data signal to outputs a detection result. The rising edge strobe unit latches the data signal at a rising edge of the clock signal, and converts a latching result to a first differential output signal. The falling-edge-strobe unit latches the data signal at a falling edge of the clock signal, and converts a latching result to a second differential output signal. The switching unit determines whether to switch the clock signal and data signal to the rising edge strobe unit or to the falling edge strobe unit according to the detection result. | 11-26-2009 |
| 20090278590 | POWER SEQUENCE CONTROL CIRCUIT, AND GATE DRIVER AND LCD PANEL HAVING THE SAME - A power sequence control circuit receives an input positive voltage and an input negative voltage. The control circuit includes a pull-up stage, having a first terminal receiving the input positive voltage, a second terminal coupled to a node, and a control terminal receiving feedback of an output positive voltage. A pull-down stage has a first terminal coupled to the node and a second terminal coupled to an output negative voltage. A current-limit switching unit has a first terminal receiving the input positive voltage, a second terminal outputting the output positive voltage, and a control terminal coupled to the node. When the output negative voltage decreases, and if the pull-down stage decreases a control voltage at the node and the control voltage is less than a threshold value, the current-limit switching unit is conducted to transmit the input positive voltage as the output positive voltage. | 11-12-2009 |
| 20090276668 | SCAN DRIVER - A scan driver includes a voltage setting circuit, a counter circuit, a logic circuit, a dynamic decoder, N level shift circuits and N output stage circuits, wherein N is a natural number. The voltage setting circuit sets N voltage signals to a first level. The counter circuit provides count data to the logic circuit, which generates M control signals according to the count data, wherein M is a natural number. The dynamic decoder includes multiple transistors, arranged in N rows, for receiving the respective N voltage signals. The transistors are further arranged in M columns and are controlled by the respective M control signals to determine levels of the N voltage signals. The N level shift circuits lift the levels of the respective N voltage signals, and the N output stage circuits output respective N gate signals based on the N voltage signals whose levels are shifted. | 11-05-2009 |
| 20090275300 | Receiver and receiving method of FM signal - A receiver of a frequency modulation (FM) signal includes an antenna, a tuner, an analog-to-digital converter (ADC), a demodulation module and a frequency offset estimation module. The antenna receives a FM signal. The tuner coupled to the antenna is for converting the FM signal into an intermediate frequency signal. The ADC coupled to the tuner is for converting the intermediate frequency signal into a digital intermediate frequency signal. The demodulation module coupled to the ADC is for demodulating the digital intermediate frequency signal into an audio signal based on a frequency offset compensation signal. The frequency offset estimation module coupled to the demodulation module is for generating the frequency offset compensation signal according to the audio signal. | 11-05-2009 |
| 20090267888 | OVERDRIVING APPARATUS AND METHOD THEREOF - An overdriving apparatus and an overdriving method for a liquid crystal display (LCD) panel are disclosed. The overdriving apparatus includes a temperature measuring apparatus and an overdriving signal generator apparatus. The temperature measuring apparatus is coupled to the overdriving signal generator apparatus. The temperature measuring apparatus measures an operation temperature of the LCD panel. The overdriving signal generator apparatus generates a first overdriving signal according to a first image data of a current frame, x second image data of previous x frame(s), and the operation temperature, where x is a natural number. | 10-29-2009 |
| 20090267672 | SERIAL PERIPHERAL INTERFACE (SPI) CIRCUIT AND DISPLAY USING THE SAME - A serial peripheral interface (SPI) circuit and a display using the same are provided. The SPI circuit includes a mater device and a slave device. A serial data input pin and a serial data output pin of the slave device are both electrically connected to a data input/output pin of the master device. When a read instruction is sent from the master device to the slave device, the master device is set in a read status, and the slave device outputs data to the master device via the serial data output pin in response to the read instruction. When a write instruction is sent from the master device to the slave device, the master device is set in a write status, and writes data to the slave device via the serial data input pin thereof in response to the write instruction. | 10-29-2009 |
| 20090261743 | LIGHT EMITTING DIODE DRIVING MODULE - An LED driving module suitable to drive a plurality of LED strings in parallel connection is disclosed. The LED driving module includes a voltage converting apparatus, a conduction voltage detecting apparatus, a reference voltage generating apparatus and a current-adjusting apparatus. The voltage converting apparatus produces a driving voltage according to a conduction voltage. The conduction voltage detecting apparatus detects the conducting states of the LED strings for producing a conduction voltage and an enabling signal. The reference voltage generating apparatus generates a first reference voltage according to the enabling signal. The current-adjusting apparatus produces a plurality of driving currents according to the first reference voltage, and the driving currents flow through the LED strings. | 10-22-2009 |
| 20090259809 | MEMORY ACCESS APPARATUS AND DISPLAY USING THE SAME - A memory access apparatus and a display using the same are provided. The memory access apparatus includes a dynamic memory, a plurality of clients and a memory management unit. The dynamic memory is used to store a plurality of memory data. The clients access the dynamic memory and each client has a priority. The memory management unit executes an access action of the clients for the dynamic memory respectively according to the priorities thereof. Besides, the memory management unit has at least one buffer area built therein. The buffer area is used to temporarily store a plurality of buffer data generated while the access action is performed. | 10-15-2009 |
| 20090257678 | IMAGE PROCESSING CIRCUIT AND METHOD THEREOF FOR ENHANCING TEXT DISPLAYING - An image processing circuit and method thereof for enhancing text displaying of an image are provided. The image processing circuit performs the method. Firstly, at least a first illumination area and at least a second illumination, which is located adjacent to the first illumination area in the image are defined according to luminance values of a plurality of pixels of the image. Next, a luminance regulation value of at least one of the pixels in the first illumination area is calculated, and the luminance value of the corresponding pixel in the first illumination area is adjusted according to the luminance regulation value. During processing of the image, the luminance values of all of the pixels in the second illumination area are restricted from any adjustment. | 10-15-2009 |
| 20090256734 | TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERSION APPARATUS - A time-interleaved analog-to-digital conversion apparatus is disclosed. The time-interleaved analog-to-digital conversion apparatus is applied for a television system and includes an input multiplexing module, a gain multiplexer and an analog-to-digital converter. The input multiplexing module receives a plurality of image signals, and samples the image signals according to a clock signal to generate a sample multiplexing signal. The gain multiplexer receives a plurality of gain signals and selectively transmits one of the gain signals corresponding to the sample multiplexing signal according to the clock signal, so as to generate a gain multiplexing signal. The analog-to-digital converter receives the sample multiplexing signal, the gain multiplexing signal and the clock signal. The analog-to-digital converter amplifies and converts the sample multiplexing signal to a digital signal according to the gain multiplexing signal and the clock signal. | 10-15-2009 |
| 20090256626 | MULTI-STEP CHARGE PUMP AND METHOD FOR PRODUCING MULTI-STEP CHARGE PUMPING - A multi-step charge pump having a power input terminal and a power output terminal is provided. The multi-step charge pump includes a plurality of capacitors, wherein each of the capacitors has a capacitance. A plurality of switching devices is connected among the capacitors, the power input terminal and the power output terminal. A switch-controlling unit controls the on/off states of the switches, wherein a charging-phase circuit corresponding to a pumping level is formed to charge the capacitors and an output-phase circuit is formed to output a voltage from the power output terminal. At least one of the capacitors herein is changeably selected as a voltage-regulating capacitor. | 10-15-2009 |
| 20090252438 | METHOD AND DEVICE FOR IMAGE INTERPOLATION CHARACTERISTIC PROCESSING DEVICE AND IMAGE INTERPOLATION DEVICE USING THE SAME - An image interpolation processing device is provided for interpolating at least one line between two adjacent lines. A prefetch unit is to prefetch pixel data of the two adjacent lines with a predetermined pixel length, so as to obtain a plurality of basic characteristics that are then stored in a first register. A characteristic processing unit is used for cutting and/or linking the basic characteristics to generate at least one set of linked characteristics. The linked characteristics are stored in a second register, as a reference for an operation unit to perform the interpolation. The operations between the operation unit and the prefetch unit are separated by a predetermined edge length. | 10-08-2009 |
| 20090245672 | ENTROPY ENCODING CIRCUIT AND ENCODING METHOD THEREOF - An entropy encoding circuit having two entropy encoders is provided. A first encoding procedure performs an adaptive scan on the encoding coefficient, and the second encoding procedure performs a fixed scan on the encoding coefficient. One of the entropy encoders receives a first encoding coefficient and performs the first encoding procedure on the first encoding coefficient to output a first encoded stream data. The other entropy encoder receives a second encoding coefficient and a normalization signal and performs the second encoding procedure on the second encoding coefficient according to the normalization signal to output a second encoded stream data. The entropy encoding circuit alternatively outputs the first encoded stream data and the second encoded stream data. | 10-01-2009 |
| 20090244383 | Video receiving apparatus - A video receiving apparatus comprises a switch, an analog-to-digital converter (ADC), a video processing circuit and a decoder is provided. The ADC receives a first analog channel data from the switch within a plurality of first periods and receives a second analog channel data from the switch within a plurality of second periods, and output a digital video signal. The sampling frequency of the ADC is a plurality of times of a switching frequency of the switch. The video processing circuit includes a recovery circuit and a noise reduction circuit. The recovery circuit restores the digital video signal to a recovery video signal corresponding to a video format of the analog video signal. The noise reduction circuit reduces noises generated by the switch according to the digital video signal. The decoder outputs a display signal according to the analog video signal. | 10-01-2009 |
| 20090244335 | CORRELATED DOUBLE SAMPLING CIRCUIT AND CMOS IMAGE SENSOR UNIT - Embodiments of the present invention provide a correlated double sampling (CDS) circuit and a CMOS image sensor unit using the CDS circuit. The CDS circuit shifts levels of sampled sensing signal and reset signal with equal amounts. Thus a voltage difference of the sampled sensing signal and the reset signal remains unchanged, and their levels may fall within a linear input range by adjusting their levels. Compared to a conventional CDS circuit, a gain of the CDS circuit provided by the embodiment of the present invention is not reduced, and thus a design complexity of a rear circuit thereof is lower, and an induced noise is relatively low. Furthermore, the CMOS image sensor unit using the CDS circuit provided by the embodiment also has these advantages. | 10-01-2009 |
| 20090243899 | Interface control circuit - An interface control circuit including a physical layer receiver, a lane receiver, a bridge circuit, a transmitter command encoder, a lane transmitter and a physical layer transmitter is provided. The physical layer receiver receives and converts serial data into parallel data, and determines to transmit the parallel data in a high speed transmission mode or a low power transmission mode according to the serial data. The lane receiver receives and decodes the parallel data. The bridge circuit outputs the decoded parallel data. If the serial data includes a read command, the transmitter command encoder encodes the parallel data. The lane transmitter receives target parallel data from the bridge circuit, and transmits the target parallel data in the low power transmission mode according to the encoded parallel data. The physical layer transmitter converts the target parallel data into target serial data and outputs the target serial data. | 10-01-2009 |
| 20090243673 | PHASE LOCKED LOOP SYSTEM AND PHASE-LOCKING METHOD FOR PHASE LOCKED LOOP - A PLL (phase locked loop) system includes a PLL and a lock detector. The PLL is for outputting a phase-locking clock signal. The lock detector is coupled to the PLL for detecting whether or not the frequency of the phase-locking clock signal falls within a predetermined frequency range and detecting whether or not the phase-locking clock signal is stable. If the frequency of the phase-locking clock signal has fallen within the predetermined frequency range and the phase-locking clock signal is stable by detection, the lock detector outputs a lock signal. | 10-01-2009 |
| 20090240754 | OPERATION METHOD AND APPARATUS FOR PERFORMING OVERLAP FILTER AND CORE TRANSFORM - A hardware implementation method for concurrently realizing overlap filter and core transform and an operation method thereof are provided. The overlap filter and core transform can be adjusted according to different specifications, processes, and operation frequencies. The hardware implementation method and the operation method thereof adopt a transform-level hardware sharing architecture and multi-port input/output register array, thereby efficiently realizing overlap filter and core transform. | 09-24-2009 |
| 20090238481 | METHOD AND APPARATUS FOR GENERATING CODED BLOCK PATTERN FOR HIGHPASS COEFFICIENTS - A method and an apparatus for generating a coded block pattern for highpass coefficients are provided. The method includes receiving a quantized highpass coefficient (HP), wherein the HP includes a macroblock data; dividing the macroblock into a plurality of blocks; performing lapped transform (LT) operations of two stages on the said block data, concurrently calculating a plurality of coded block patterns of the blocks corresponding to all possible HP prediction directions; performing a calculation to obtain selection information of the HP prediction directions according to lowpass coefficients (LPs) generated through LT operations of the two stages; selecting a corresponding coded block pattern among the said coded block patterns according to the above-mentioned selection information of the HP prediction directions and outputting the selected coded block pattern. | 09-24-2009 |
| 20090238463 | METHOD FOR DETECTING IMAGE EDGE AND IMAGE INTERPOLATION USING THE SAME - A method for detecting an image edge is provided. Pixel data of neighbor lines of an image are read to generate a first and a second inclined edge areas between two neighbor lines. The incline edge areas are determined by detecting whether a difference of two corresponding pixel data exceeds a preset edge threshold. Then, whether there is an overlapped or nearby portion between the inclined edge areas is determined, so as to find an incline edge. | 09-24-2009 |
| 20090237046 | APPARATUS OF DYNAMIC FEEDBACK CONTROL CHARGE PUMP - An apparatus of dynamic feedback control charge pump is provided. The apparatus of dynamic feedback control charge pump receives an input voltage through a voltage regulator. The voltage regulator regulates the input voltage to a base voltage according to a control signal. The charge pump receives the base voltage and provides multiple of the base voltage to an output voltage. A feedback unit provides the control signal to the voltage regulator according to the output voltage. Therefore, the apparatus of dynamic feedback control charge pump can reduce the output voltage ripple and improve the output efficiency of the charge pump. | 09-24-2009 |
| 20090224303 | High voltage capacitor and manufacture method thereof - A high voltage capacitor and a manufacture method thereof are provided. The high voltage capacitor comprises a double diffused drain layer, an oxide layer and a poly-crystal silicon layer. The double diffused drain layer is used as a bottom electrode plate of a high voltage capacitor. The oxide layer is formed on the double diffused drain layer, and is completely overlapped on the double diffused drain layer. The poly-crystal silicon layer is formed on the oxide layer, and is used as a top electrode plate of the high voltage capacitor. | 09-10-2009 |
| 20090189836 | IMPULSE-TYPE DRIVING METHOD AND CIRCUIT FOR LIQUID CRYSTAL DISPLAY - An impulse-type driving method for a liquid crystal display (LCD) is used for driving a pixel array of an LCD panel. The method includes providing a set of impulse control signals to a source driver. The source driver, according to the set of impulse control signals, drives the pixel array. The set of impulse control signals includes a command signal. The command signal includes a field of determining data voltage polarity and a command field. According to a time sequence, the field of determining data voltage polarity provides a polarity data for determining a voltage polarity output by the source driver. The command field and the field of determining data voltage polarity are consecutively and alternatively output, in which the command field allows to add a dynamic command in accordance with a desired action. | 07-30-2009 |
| 20090189220 | POWER MOS TRANSISTOR DEVICE AND LAYOUT - A power metal-oxide semiconductor (MOS) transistor device is provided. The power MOS transistor device includes a drain region disposed in a substrate, a gate structure layer disposed over the substrate, and enclosing a periphery of the drain region, and a source region formed in the substrate and distributed at an outer periphery of the gate structure layer. In addition, the MOS transistor device can, for example, form a transistor array. | 07-30-2009 |
| 20090174466 | CHARGE PUMP CIRCUIT - A charge pump circuit is provided. The charge pump circuit includes a pump unit, first through sixth switches, a fly capacitor and an output capacitor. In a first period, an input voltage and a first voltage charge at least one internal capacitor of the pump unit via a first terminal and a second terminal of the pump unit. In the second period, the internal capacitor of the pump unit provides charges to the fly capacitor via the second switch and generates a first output voltage. In the third period, the fly capacitor supplies the charges to the output capacitor via the fourth switch to generate a second output voltage. | 07-09-2009 |
| 20090167944 | Video-signal receiving apparatus and method - A video-signal receiving method is provided. First, receive an analog video signal, wherein the analog video signal comprises a specific video signal and a synchronization signal. Next, at least perform an analog-to-digital conversion on the synchronization signal of the analog video signal according to a sampling signal to generate a digital signal. Then, receive the digital signal and decoding the digital signal to obtain a digital synchronization signal corresponding to the synchronization signal. Afterward, adjust a phase of the sampling signal according to the digital synchronization signal. | 07-02-2009 |
| 20090167790 | IMAGE-DRIVING METHOD AND DRIVING CIRCUIT OF DISPLAY AND DISPLAY APPARATUS - A image-driving method for a display includes receiving an image frame and registering at least a part of the image frame, wherein the image frame is divided into a prior-part frame and a post-part frame; respectively conducting a first luminance adjustment on the prior-part frame and the post-part frame so as to take the adjustment results as a first part of a first image frame and a first part of a second image frame; filling the previous received image frame after a second luminance processing into a second part of the first image frame; filling the presently received image frame after a second luminance processing into a second part of the second image frame; outputting the complete first image frame and the complete second image frame for successive displaying. | 07-02-2009 |
| 20090160495 | LOW POWER DIFFERENTIAL SIGNALING TRANSMITTER - A low power differential signaling transmitter includes a switchable current source apparatus and a differential signaling generator coupled to the switchable current source apparatus. The switchable current source apparatus receives a first input voltage and a second input voltage, and generates a plurality of reference currents according to the first input voltage and the second input voltage. The differential signaling generator includes a plurality of first transistors, a plurality of second transistors, a first output voltage terminal and a second output voltage terminal. The on or off states of the first transistors and the second transistors are controlled by the reference currents. The first output voltage terminal outputs a first output voltage, and the second output voltage terminal outputs a second output voltage. The first output voltage and the second output voltage are determined according to the on or off states of the first and second transistors. | 06-25-2009 |
| 20090153741 | VIDEO FILTER AND VIDEO PROCESSOR AND PROCESSING METHOD USING THE SAME - A video processor includes a video filter and a calculation circuit. The video filter performs a low-pass filtering operation on first frame data to obtain brightness distribution data. The calculation circuit obtains difference data between the brightness distribution data and second frame data. The calculation circuit multiplies the difference data and a weighting parameter together to obtain a product, and then summates the product and the second frame data together to generate processed frame data. | 06-18-2009 |
| 20090153532 | PIXEL-DRIVING METHOD AND CIRCUIT THEREOF - A method for driving pixel, being compatible between dot-inversion driving mechanism and dual-gate driving mechanism, includes setting four continuous pixels as a driving sub-unit, having a first pixel transistor, a second pixel transistor, a third pixel transistor, and a fourth pixel transistor. The first gate line commonly controls two gates of the first and fourth pixel transistors. The second gate line commonly controls two gates of the second and third pixel transistors. The first source line commonly controls two sources of the first and second pixel transistors. The second source line commonly controls two sources of the third and fourth pixel transistors. A positive voltage and a negative voltage are alternatively in time sequence applied to the first and second source lines, respectively. An activate voltage is alternatively in time sequence applied to the first and second source lines, respectively. | 06-18-2009 |
| 20090153455 | GRAY INSERTION DEVICE AND LIQUID CRYSTAL DISPLAY - A gray insertion device and a liquid crystal display (LCD) are provided. The gray insertion device is adapted to the LCD. The LCD includes a source driver and a source driving line. The gray insertion device includes a gray insertion controller and a gray insertion switch unit. The gray insertion switch unit is disposed outside the source driver. The gray insertion switch unit is coupled to the source driving line and the gray insertion controller. The gray insertion controller controls the gray insertion switch unit to transmit a voltage to the source driving line according to a timing signal, wherein the voltage is not provided by the source driver. Thereby, the present invention not only achieves gray insertion effect, but also decreases the power consumption of the source driver. | 06-18-2009 |
| 20090142048 | CAMERA APPARATUS HAVING SHUTTER CONTROL APPARATUS - A camera apparatus includes a lens module, an image detecting module, a shutter and a shutter control apparatus. The shutter is disposed between the lens module and the image detecting module. The shutter control apparatus has a switch for controlling the lens module and the shutter. The switch has a first trigger status and a second trigger status. While the switch produces the first trigger status, the lens module automatically focuses. By contrast, while the switch produces the second trigger status, the shutter control apparatus turns on/off the shutter, so that the image detecting module detects an image through the lens module. | 06-04-2009 |
| 20090135171 | VOLTAGE GENERATING SYSTEM - A voltage generating system applied to a display driving apparatus is disclosed, which is capable of changing a time point at which a signal of a pixel electrode and a signal of a common electrode perform polarity inversion, so as to adjust the frequency of an AC common voltage dynamically. Therefore, the noise frequency caused by the transition of the AC common voltage is dispersed, and the energy of audio-frequency noises and high-frequency noises is reduced. | 05-28-2009 |
| 20090122168 | METHOD FOR RESETTING IMAGE SENSING AND IMAGE SENSING DEVICE USING THE SAME - A method for resetting image sensing and an image sensing device using the same are provided. The method for resetting image sensing includes generating a plurality of reset signals and a plurality of control signals, and using the reset signals and the control signals to control a pixel array to reset and expose. The pixel array has a plurality of pixel blocks, each of the pixel blocks has a plurality of pixel sensing units. When the plurality of pixel sensing units of one of the pixel blocks expose to acquire a plurality of sensing signals sequentially, the plurality of pixel sensing units of another one of the pixel blocks are reset. | 05-14-2009 |
| 20090121752 | SOURCE FOLLOWER - A source follower includes first through third switches, first and second transistors, and a first capacitor. The first switch is used to determine whether or not to couple the source of the first transistor with an input signal. The second switch is used to determine whether or not to couple a gate and a drain of the first transistor with a first voltage. A first end of the first capacitor is coupled with a first control signal, and a second end of the first capacitor is coupled to the drain of the first transistor and a gate of the second transistor. The third switch is used to determine whether to or not couple a drain of the second transistor with the first voltage, and a source of the second transistor serves as an output of the source follower. | 05-14-2009 |
| 20090116564 | LOW VOLTAGE DIFFERENTIAL SIGNALING TRANSMITTER AND TRANSMITTING METHOD - A low voltage differential signaling (LVDS) transmitter receives a data signal, a data invert signal and a plurality of logic signals. The LVDS transmitter includes a first-stage differential signaling transmitting circuit and a second-stage differential signaling transmitting circuit. The first-stage differential signaling transmitting circuit receives the data signal and the data invert signal and has a first output terminal and a second output terminal. The second-stage differential signaling transmitting circuit is controlled by the logic signals, and has a third output terminal and a fourth output terminal respectively connected to the first output terminal and the second output terminal, so as to generate a needed pre-emphasis signal. When no pre-emphasis signal needs to be generated, the second-stage differential signaling transmitting circuit is controlled to be in disabled state. | 05-07-2009 |
