NOVATEK MICROELECTRONICS CORP. Patent applications |
Patent application number | Title | Published |
20160019863 | IMAGE PROCESSING METHOD AND DEVICE - An image processing method includes: dividing a frame into a plurality of image regions; analyzing contents of the image regions to obtain respective first regional characteristic values of the image regions; obtaining a global characteristic value according to the first regional characteristic values of the image regions; and controlling at least one of a backlight and a panel according to the first regional characteristic values and/or the global characteristic value. | 01-21-2016 |
20150378609 | METHOD FOR INITIALIZING NAND FLASH - A method for initializing a NAND flash serving as a booting device includes the following steps. A NAND flash storing a boot table being identified by an identification (ID) of the NAND flash is provided. A current block of the NAND flash is searched to read the boot table. Configuration information of the boot table is read to initialize the NAND flash. | 12-31-2015 |
20150340008 | DISPLAY APPARATUS AND METHOD AND COLOR TEMPERATURE COMPENSATION APPARATUS THEREOF - A color temperature compensation apparatus includes a compensation table and a controller. The compensation table records a relationship between a plurality of compensation values and each of a plurality of gray-levels, wherein the relationship is established based on a plurality of color temperature compensation curves. The controller is coupled to the compensation table, and generates a plurality of compensation values by referring to the compensation table according to a gray-level of each of a plurality of image data and a reference color temperature. The controller further calculates each of a plurality of compensated image data according to the compensation values, wherein the color temperature compensation curves respectively correspond to a plurality of color temperatures. | 11-26-2015 |
20150338448 | NOISE DETECTION DEVICE, SYSTEM AND METHOD - A noise detection device, system, and a method of detecting noise signals are disclosed. The noise detection device includes a drive circuit, a sense circuit and a controller. The drive circuit drives a plurality of drive lines having a first polarity pattern and a second polarity pattern, wherein an operation of the first polarity pattern and the second polarity pattern substantially equals zero over a predetermined time period. The sense circuit senses a plurality of sense signals from at least one sense line during the predetermined time period. The controller derives a magnitude of a noise signal from the at least one sense line according to the sense signals. | 11-26-2015 |
20150332442 | IMAGE PROCESSING METHOD FOR DYNAMICALLY ADJUSTING LUMINANCE AND CONTRAST OF IMAGE - An image processing method for adjusting the luminance and contrast of an input image comprises the following steps. First, local spatial luminance statistics is performed on the first pixels of the input image to generate a luminance image including a plurality of second pixels. Then, from a preset mapping curve group comprising a plurality of smooth mapping curves, a corresponding smooth mapping curve is selected for each of the second pixels according to an adjusting function. Next, the pixel values of the second pixels are adjusted according to the corresponding smooth mapping curves to generate an adjusted image. | 11-19-2015 |
20150326813 | VIDEO TRANSMISSION SYSTEM - A video transmission system is disclosed. The video transmission system comprises a multi-drop bus, a first source driving chip, a second source driving chip and a timing controller. The first source driving chip comprises a first source driving circuit and a first terminal circuit. The first terminal circuit is coupled to the multi-drop bus and the first source driving circuit for providing a first terminal resistor. The second source driving chip comprises a second source driving circuit and a second terminal circuit. The second terminal circuit is coupled to the multi-drop bus and the second source driving circuit for providing a second terminal resistor. The timing controller is coupled to the first source driving chip and the second source driving chip via the multi-drop bus. | 11-12-2015 |
20150325166 | Self-Refresh Control Method, Sink Device thereof and Display System thereof - A self-refresh control method for a display system includes receiving a frame from a video source of the display system; storing the frame in a storage module of the display system according to a writing timing sequence signal; accessing data stored in the storage module as a self-refresh frame according to a reading timing sequence, for outputting the self-refresh frame to a display device of the display system; and adjusting the reading timing sequence signal according to the writing timing sequence signal and the reading timing sequence signal. | 11-12-2015 |
20150269904 | IMAGE PROCESSING DEVICE AND METHOD THEREOF - An image processing device and a method thereof are provided, and said device includes a valid bits detector and a compensator. The valid bits detector is configured to detect valid bits of an image input signal thereby outputting a correcting coefficient correspondingly. The compensator is coupled to the valid bits detector to receive the correcting coefficient, bit-compensating for the image input signal according to the correcting coefficient, thereby outputting an image output signal correspondingly. | 09-24-2015 |
20150262537 | GAMMA VOLTAGE GENERATING APPARATUS AND METHOD FOR GENERATING GAMMA VOLTAGE - A gamma voltage generating apparatus and a method for generating a gamma voltage are provided. The gamma voltage generating apparatus includes a plurality of digital-to-analog converter units, a resister string and a plurality of selecting units. The digital-to-analog converter units generate a plurality of curve reference voltages. The resister string includes a plurality of resistors connected in series with each other to provide a plurality of endpoints. A part of the endpoints are set to be a plurality of curve turning intervals. Each of the selecting units respectively corresponds to each of the digital-to-analog converter units and each of the curve turning intervals. Each of the selecting units selectively provides each of the curve reference voltages to one of the endpoints of a corresponding of the curve turning intervals. | 09-17-2015 |
20150256804 | ARTIFACT REDUCTION METHOD AND APPARATUS AND IMAGE PROCESSING METHOD AND APPARATUS - Artifact reduction method and apparatus, and image processing method and apparatus are provided. The artifact reduction apparatus includes a scaling-down unit, a buffer unit, an artifact detection unit, a scaling-up unit and a filter unit. The scaling-down unit scales down a resolution of a current original image frame to obtain a current low-resolution image frame. The artifact detection unit performs an artifact detection to the current low-resolution image frame to obtain low-resolution weights in accordance with a relation of the current low-resolution image frame and a previous low-resolution image frame provided by the buffer unit. The scaling-up unit scales up a number of the low-resolution weights to obtain a high-resolution weights. By using the high-resolution weights, the filter unit performs an image processing procedure to the current original image frame for reducing artifact of the current original image frame and obtaining an adjusted image frame. | 09-10-2015 |
20150228234 | BUFFER CIRCUIT, PANEL MODULE, AND DISPLAY DRIVING METHOD - A buffer circuit, a display module, and a display driving method are disclosed. The buffer circuit comprises a positive polarity buffer, a negative polarity buffer. The positive polarity buffer receives a first supply voltage and a second supply voltage to output a positive reference voltage to a positive resistance string. The second supply voltage is less than the first supply voltage. The negative polarity buffer receives the second supply voltage and a third supply voltage to output a negative reference voltage to a negative resistance string. The third supply voltage is less than the second supply voltage. | 08-13-2015 |
20150163394 | Automatic-Focusing Imaging Capture Device and Imaging Capture Method - An automatic-focusing imaging capture device includes a first imaging capture module for generating a clue imaging information according to an object and a second imaging capture module for determining whether or not to re-focus for generating an imaging information corresponding to the object according to the clue imaging information; wherein a first frame rate of the first imaging capture module is higher than a second frame rate of the second imaging capture module, and the clue imaging information includes an object-distance information and a depth-of-field information. | 06-11-2015 |
20150154942 | Transmission Method for Display Device - A transmission method for a display device is provided. The display device includes a one-to-many timing controller and a plurality of source drivers. The transmission method includes determining whether the plurality of source drivers being operated in different operational modes are switched on or off according to a command signal, to receive a display information of the one-to-many timing controller. The display information comprises at least a first control triggering signal, a first control signal, a first display information triggering signal, a first display signal, a second display information triggering signal and a second display signal, and the command signal is an internal setting signal or an external setting signal. | 06-04-2015 |
20150130964 | Automatic Color Correction Method and Color Correction Module thereof - An auto-color-correction method for an image capturing device includes calculating a plurality color temperatures of a plurality of pixels in an image; calculating a number of pixels of the plurality of pixels located in a first color temperature range as a first number and a number of pixels of the plurality of pixels located in a second color temperature range as a second number; generating a color temperature weight according to the first number and the second number; and generating at least one correction coefficient according to the color temperature weight, at least one first coefficient corresponding to the first color temperature range and at least one second coefficient corresponding to the second color temperature range. | 05-14-2015 |
20150130744 | CARRIER SIGNAL DETECTION APPARATUS, TOUCH CONTROL DETECTION APPARATUS AND DETECTION METHODS THEREOF - A carrier signal detection apparatus, a touch control apparatus and detection methods thereof are provided. The carrier signal detection apparatus includes an analog to digital converting (ADC) apparatus and a filter. The ADC apparatus receives an analog input signal and converts the analog input signal to a digital signal. The filter receives the digital signal and accumulates the digital signal according to a delay time for generating a carrier signal detection result. | 05-14-2015 |
20150126127 | CARRIER FREQUENCY OFFSET CALIBRATION METHOD AND SYSTEM - A carrier frequency offset calibration method and a carrier frequency offset calibration system are provided. The carrier frequency offset calibration method is adapted to calibrate the carrier frequency offsets of a transmission signal which includes a primary carrier and a secondary carrier. In the carrier frequency offset calibration method, the transmission signal is analyzed according to known carrier frequencies, a primary feedback value and a secondary feedback value, so as to obtain a primary carrier offset value and a secondary carrier offset value. The relationship between the primary carrier offset value and the secondary offset value is considered to determine whether to adjust the primary feedback signal and the secondary feedback signal. | 05-07-2015 |
20150125088 | IMAGE PROCESSING APPARATUS AND IMAGE FINE-TUNING METHOD THEREOF - An image processing apparatus and an image fine-tuning method are provided. The image processing apparatus includes a high-pass filter, a block comparator, an image data reconstructor, and a calculator. The high-pass filter receives a first image to generate a filtered image. The block comparator receives an input image and the first image to generate a block comparison result. The image data reconstructor receives the filtered image and the block comparison result to generate image reconstruction data. The calculator receives the input image and the image reconstruction data to generate an output image. | 05-07-2015 |
20150123963 | DISPLAY DRIVING DEVICE AND METHOD FOR DRIVING DISPLAY - A display driving device and a method for driving a display are provided. The display driving device includes a host and a driving chip. The host transmits an image data and a synchronization signal. The driving chip receives the image data and the synchronization signal and drives a display panel to display frames. The driving chip includes a storage unit, a driving module, and a control circuit. The storage unit stores the image data. The driving module drives the display panel to display the frames according to the image data from the host and a timing generator frequency of the driving module. The control circuit detects a target frequency of the synchronization signal and the timing generator frequency of the driving module, compares the target frequency and the timing generator frequency, outputs an adjustment value according to the comparison result, and adjusts the timing generator frequency of driving module. | 05-07-2015 |
20150117070 | AC-DC CONVERTING APPARATUS AND OPERATING METHOD THEREOF - An AC-DC converting apparatus and operating method are provided. The AC-DC converting apparatus includes a transformer, a first energy storage unit, a first output switch, a second energy storage unit, a second output switch and a secondary-side control module. The transformer includes a primary-side winding and a secondary-side winding. The first output switch is coupled between the secondary-side winding and the first energy storage unit. The second output switch is coupled between the secondary-side winding and the second energy storage unit. The secondary-side control module monitors the first energy storage unit and the second energy storage unit, and decides time length of a conduction period of the first output switch and the second output switch according to the monitoring result. | 04-30-2015 |
20150116533 | IMAGE SENSING APPARATUS AND BLACK LEVEL CONTROLLING METHOD THEREOF - An image sensing apparatus and a black level controlling method thereof are provided. The black level controlling method includes following steps. A conversion relationship between analog gain values and offset values is provided. An analog gain value is converted into an analog offset value by using the conversion relationship between analog gain values and offset values. Whether to adjust the analog offset value is decided according to a first optical black data corresponding to a first part of optical black pixels. A digital data offset value is calculated according to a data corresponding a second part of optical black pixels. | 04-30-2015 |
20150116193 | Source Driver and Driving Method thereof - A source driver utilized for a display device and switching between two operational modes includes a reception module for receiving a plurality of display information and a plurality of transmission channels. Each transmission channel includes a register module for receiving one of the plurality of display information; a voltage level transformer for determining a voltage level of the one of display information; a polarization digital-to-analog converter for processing a digital-to-analog operation for the voltage level of the one display information; and an output module for outputting a plurality of voltage levels of the display information. The voltage levels of every two adjacent transmission channels include different polarization of voltage levels, and the output module processes an odd-number switching operation before outputting the plurality of voltage levels. | 04-30-2015 |
20150109236 | TOUCH DISPLAY PANEL - A touch display panel is provided, and the touch display panel includes a display panel, a color filter, a touch panel, and a touching control chip. The color filter is disposed on a first surface of the display panel, and a second surface of the color filter covers a portion of the first surface of the display panel. The touch panel covers a portion of the first surface of the color filter. The touching control chip is disposed on an area of the first surface of the color filter not covered by the touch panel. | 04-23-2015 |
20150109160 | Analog to Digital Conversion Method and Related Analog to Digital Converter - An analog to digital conversion method includes charging a capacitor through an analog signal to sample a voltage of the analog signal; coupling the capacitor and a plurality of reference voltages to a comparator when a voltage of the capacitor is equal to the voltage of the analog signal, to compare the voltage of the capacitor with the reference voltages and generate a first comparison result; coupling the capacitor to a ramp generator when a status of the first comparison result changes, to compare a ramp signal of the ramp generator with a voltage difference of a first reference voltage and the voltage of the capacitor and generate a second comparison result; obtaining a voltage of the ramp signal when a status of the second comparison result changes; and obtaining a digital code of the analog signal according to the first reference voltage and the voltage of the ramp signal. | 04-23-2015 |
20150103231 | Focusing Method - A focusing method for an image capturing device includes detecting a plurality of focus frames of a plurality of characteristic points in a capturing area; acquiring a plurality of focuses according to the plurality of focus frames; and capturing a plurality of images according to each of the plurality of focuses. | 04-16-2015 |
20150102989 | Equalizing Method and Driving Device Thereof - An equalizing method for a driving device includes determining whether a polarity of an output voltage changes from a first time period to a second time period according to an inversion method of a display device coupled to the driving device, for generating a polarity inversion signal; and determining whether to perform an equalization operation on the output voltage in a switching period between the first time period and the second time period according to the polarity inversion signal, current line information and previous line information. | 04-16-2015 |
20150102987 | Non-Overlap Data Transmission Method For Liquid Crystal Display And Related Transmission Circuit - The present disclosure provides a non-overlap data transmission method for a liquid crystal display (LCD). The non-overlap data transmission method includes obtaining an entire fame image data; dividing the entire frame image data into a plurality of image data segments and individually sending the image data segments to a plurality of display processing units at the same time, wherein each of the image data segments is sent to one of the display processing units and image data of each image data segment does not overlap with image data of the other image data segments; and mutually sending image data of the image data segments through the display processing units. | 04-16-2015 |
20150098005 | IMAGE SENSOR AND IMAGE CAPTURING SYSTEM - An image sensor and an image capturing system are provided. The image sensor includes a pixel array, and the pixel array includes a plurality of image sensing arrays and a focus sensing pixel group. Each of the image sensing arrays is covered by a plurality of color filter units, and the focus sensing pixel group is not covered by the color filter units. The focus sensing pixel group includes a plurality of first focus sensing pixel units, and the first focus sensing pixel units are arranged according to a first arrangement pattern. An area ratio of the focus sensing pixel group and the pixel array is smaller than one-ninth, or the focus sensing pixel group is, with respect to the whole pixel array, non-uniformly disposed in the pixel array. The image capturing system of the present invention can enhance a focus function. | 04-09-2015 |
20150091885 | Power Saving Method and Related Waveform-Shaping Circuit - The present disclosure provides a power saving method for a LCD comprising a plurality of scan lines. The power saving method comprises segregating the scan lines into a plurality of scan line groups; and individually performing a waveform-shaping function on each of the scan-line groups at different time points. | 04-02-2015 |
20150091847 | TOUCH CONTROL DETECTING APPARATUS AND METHOD THEREOF - A touch control detecting apparatus and method are provided. The touch control detecting method is adapted for a touch panel which has a plurality of touch rows and touch columns. The touch control detecting method includes: executing a mutual capacitor touch detection and a self-capacitor touch detection on the touch panel simultaneously, and obtaining a mutual capacitor touch detecting result and a self-capacitor touch detecting result respectively; and then executing an operation on the mutual capacitor touch detecting result and the self-capacitor touch detecting result to obtain position information of at least one touch point on the touch panel. | 04-02-2015 |
20150091648 | AMPLIFIER CIRCUIT AND OPERATION METHOD THEREOF - An amplifier circuit and an operation method thereof are provided. The amplifier circuit includes two stages of amplifiers. When the amplifier circuit is operated in a high gain mode, the two stages of amplifiers are operated normally to provide high gain. When the amplifier circuit is operated in a low gain mode, the second stage of amplifier is turned off, and the first stage of amplifier is coupled to output terminals of the amplifier circuit through signal isolation elements so as to form a single stage of amplifier. Therefore, the amplifier circuit can change the total gain value thereof according to a requirement of gain. | 04-02-2015 |
20150085452 | LAYOUT METHOD, ELECTRONIC DEVICE AND CONNECTOR - A layout method applied to a connector is provided. The connector is electrically connected between a flexible printed circuit (FPC) and a printed circuit board (PCB). The FPC includes M pairs of differential lines and X shield lines. The PCB includes M pairs of differential lines and Z shield lines. The layout method includes following steps. Firstly, M pairs of conductive lines are disposed on the connector. The M conductive lines are correspondingly electrically connected to the M differential lines of the FPC and the M differential lines of the PCB. Then; Y conductive lines are disposed on the connector, wherein Y is smaller than X. Furthermore, at least one of the Y conductive lines is electrically connected to at least one of the X shield lines and at least one of the Z shield lines. | 03-26-2015 |
20150085189 | DIGITAL TELEVISION, TELEVISION CHIP AND DISPLAY METHOD - A digital television (TV) including a display terminal, a TV chip and an image driving circuit is provided. The display terminal includes multiple adjacent rows of pixels. The TV chip includes a digital TV decoder, a data stream decoder, a scaler and a color space converting circuit. The digital TV decoder outputs a data stream according to an interlaced TV signal. The data stream decoder decodes the data stream to output an interlaced image. The scaler outputs a scaled image according to the interlaced image. The color space converting circuit outputs color pixel data according to the scaled image. The image driving circuit simultaneously turns on the rows of pixels, and writes the color pixel data into the rows of pixels to display a de-interlaced image. | 03-26-2015 |
20150085085 | DISPARITY CALCULATING METHOD AND STEREO MATCHING SYSTEM THEREOF - A disparity calculating method for a stereo matching system includes calculating a global energy matrix according to a first image, a second image and a previous disparity matrix of a previous frame; calculating a global disparity matrix according to the global energy matrix and a first stereo matching algorithm; calculating a local energy matrix between a first image block of the first image and a second image block of the second image according to the first image block, the second image block, a previous block disparity matrix and the global disparity matrix; and calculating a local disparity matrix between the first image block and the second image block according to the local energy matrix and a second stereo matching algorithm. | 03-26-2015 |
20150078677 | IMAGE SHARPENING METHOD AND IMAGE PROCESSING DEVICE - An image sharpening method and an image processing device are provided. The method includes: obtaining a plurality of pixels in an image; calculating a first weight of a high pass filter and a second weight of a first filter according to the pixels, and the first filter is a convolution of the high pass filter and a low pass filter; generating a sharpening filter according to the high pass filter, the first weight, the first filter and the second weight; and executing a sharpening operation on the pixels according to the sharpening filter. Accordingly, a sharpened image has better vision effects. | 03-19-2015 |
20150070338 | DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY PANEL - A liquid crystal display panel and a display device are provided. The liquid crystal display includes a first common electrode, a second common electrode and pixels. The second common electrode and the first common electrode are electrically independent from each other. First pixels of the pixels are coupled to the first common electrode, and second pixels of the pixels are coupled to the second common electrode. Accordingly, usage or operation of the liquid crystal display panel is more flexible. | 03-12-2015 |
20150070266 | Gesture determination method and electronic device thereof - A gesture determination method is utilized for an electronic device. The gesture determination method includes executing a program, determining a gesture content supported by the program to obtain a supporting gesture content, detecting and determining ambient light intensity around the electronic device to generate a light intensity determination result, deciding a first sensing process or a second sensing process to perform sensing and determining a gesture for operating the program according to the operating gesture content and the light intensity determination result. | 03-12-2015 |
20150063680 | Disparity Calculating Method and Stereo Matching Device thereof - A disparity calculating method includes generating an energy matrix according to a first image-block and a second image-block, wherein the energy matrix includes a plurality of energies of a plurality of pixels corresponding to a plurality of disparity candidates; setting the energy corresponding to a starting pixel of the plurality of pixels and a specified disparity candidate of the plurality of disparity candidates as a first predetermined value and setting the energies corresponding to the starting pixel and other disparity candidates of the plurality of disparity candidates as a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; generating a path matrix according to the energy matrix; and determining a plurality of disparities of the plurality of pixels sequentially from an ending pixels of the plurality of pixels, wherein the disparity of the ending pixel is set as a third predetermined value. | 03-05-2015 |
20150062190 | LCD DEVICE AND METHOD FOR IMAGE DITHERING COMPENSATION - A liquid crystal display (LCD) device includes: a data source, for generating a N-bit pixel data, N being a positive integer; a digital gamma correction unit, coupled to the data source, for performing digital gamma correction on the pixel data to generate a (N+M)-bit digital gamma correction pixel data, M being a positive integer; an image dithering unit, coupled to the digital gamma correction unit, for performing image dithering on the digital gamma correction pixel data to generate a (N+M−K)-bit dithering compensation pixel data, K being a positive integer; and a converter, coupled to the image dithering unit, for converting the dithering compensation pixel data into an output image. A bit number of the converter is lower than a bit number of the digital gamma correction unit. | 03-05-2015 |
20150061635 | VOLTAGE CONVERTING INTEGRATED CIRCUIT - A voltage converting integrated circuit includes a first switch, a second switch, a third switch, a fourth switch, and a control circuit. The first switch is coupled between a first voltage pin and a first switch pin. The second switch is coupled between a second voltage pin and a second switch pin. The third switch is coupled between the first switch pin and a third voltage pin. The fourth switch is coupled between the second switch pin and a reference ground. The first to the fourth switches are controlled by a control signal to be turned on or off. The control circuit is coupled to the first to the fourth switches for receiving a mode setting signal and the control circuit generates a control signal according to the mode setting signal. | 03-05-2015 |
20150061629 | MULTI-POWER DOMAIN OPERATIONAL AMPLIFIER AND VOLTAGE GENERATOR USING THE SAME - A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages. | 03-05-2015 |
20150042671 | Data Compression System for Liquid Crystal Display and Related Power Saving Method - A data compression system for a liquid crystal display (LCD) includes a host and a drive circuit. The host is utilized for outputting image data in a first data format or a second data format according to an operation mode of the LCD. The drive circuit includes a bypass path, for transmitting the image data according to the operation mode; a compression unit, coupled to the host, for receiving the image data and performing a compression procedure on the image data to generate a compression data according to the operation mode; a storage unit, coupled to the compression unit, for storing the compression data and the image data; a de-compression unit, coupled to the storage unit, for receiving the compression data and performing a de-compression procedure on the compression data to recover the image data according to the operation mode; and a display unit, for displaying the image data. | 02-12-2015 |
20150042637 | SOURCE DRIVER AND OPERATION METHOD THEREOF - A source driver and an operation method thereof are provided. The operation method includes following steps. A data signal is provided to the source driver. The operating current of the source driver is reduced to an abnormal operating level in period from the source driver is reset to before a pixel data of the source driver is appeared in the data signal. The operation current of the source driver is restored to a normal operating level when the pixel data of the source driver is appeared in the data signal. | 02-12-2015 |
20150042629 | SOURCE DRIVER AND METHOD FOR DETERMINING POLARITY OF PIXEL VOLTAGE THEREOF - A source driver and a method for determining polarity of pixel voltage thereof are provided. The source driver includes a data register unit, a plurality of data groups and a plurality of polarity determining units. The data register unit receives an image data signal and provides a plurality of display data. The data groups have at least two data channels respectively. The data channels are coupled to the data register unit to receive the corresponding display data and provide a plurality of pixel voltages. The polarity determining units are respectively coupled to the data channels corresponding to different data groups, and each of the polarity determining units determines whether to invert polarities of a part of the pixel voltages provided by the coupled data channels according to the received display data of the coupled data channels and previous display data corresponding to the received display data. | 02-12-2015 |
20150042597 | TOUCH DISPLAY DEVICE AND METHOD FOR SENSING CAPACITANCE THEREOF - A touch display device and a method for sensing capacitance thereof are provided. The touch display device includes a display panel having a plurality of liquid crystal pixels, a source driver, a touch panel having a plurality of touch areas, a touch sensing circuit and a crosstalk compensation unit. The source driver writes a plurality of pixel voltages into the liquid crystal pixels according to a plurality of display data. The touch panel is disposed and overlapped with the display panel. The touch sensing circuit senses a capacitance variation amount corresponding to each of the touch areas. The crosstalk compensation unit is coupled to the touch sensing circuit to receive the capacitance variation amount corresponding to each of the touch areas and corrects the capacitance variation amounts according to a plurality of capacitance crosstalk values corresponding to the liquid crystal pixels so as to provide a plurality sensing signals. | 02-12-2015 |
20150042549 | LIQUID CRYSTAL DISPLAY AND GATE DRIVER THEREOF - A liquid crystal display and a gate driver thereof are disclosed. The gate driver comprises a first output unit, a second output unit, a first counter, a second counter and a multiplex unit. The first counter counts a clock to control the first output unit to output odd gate driving signals according to a first start signal and a polarity signal. The second counter counts the clock to control the second output unit to output even gate driving signals according to a second start signal and the polarity signal. The multiplex unit selectively outputs the polarity signal to the first counter or the second counter. | 02-12-2015 |
20150042395 | SOURCE DRIVER AND METHOD TO REDUCE PEAK CURRENT THEREIN - A source driver and a method to reduce peak current of the source driver are provided. The source driver includes a latch circuit, a level shifter and a digital-to-analog converter (DAC) circuit. The latch circuit latches current bit-data. The latch circuit is coupled to an input terminal of the level shifter. The DAC circuit is coupled to an output terminal of the level shifter. When the current bit-data is not a complement of previous bit-data, the latch circuit selects and outputs the current bit-data to the input terminal of the level shifter, and the DAC circuit outputs a voltage corresponding to the output data of the level shifter. When the current bit-data is the complement of the previous bit-data, the latch circuit selects and outputs the previous bit-data to the input terminal of the level shifter, and the DAC circuit outputs a voltage corresponding to the current bit-data. | 02-12-2015 |
20150042297 | Voltage Converting Device and Electronic System thereof - A voltage converting device with a self-reference feature for an electronic system includes a differential current generating module, implemented in a Complementary metal-oxide-semiconductor (CMOS) processing for generating a differential current pair according to a converting voltage; and a voltage converting module, coupled to the differential current generating module, a first supply voltage and a second supply voltage of the electronic system for generating the converting voltage according to the differential current pair, the first supply voltage and the second supply voltage. | 02-12-2015 |
20150042238 | DRIVING METHOD OF MULTI-COMMON ELECTRODES AND DISPLAY DEVICE - A driving method of multi-common electrodes and a display device are provided. The driving method includes following steps: providing a plurality of common voltages, in which the common voltages include a first common voltage and a second common voltage, and the first common voltage is different from the second common voltage. During a first period, the first common voltage is set to a first voltage level to drive a first common electrode of a first pixel region in the display panel, and the second common voltage is set to a third voltage level to drive a second common electrode of a second pixel region in the display panel. During a second period, the first common voltage is set to a second voltage level to drive the first common electrode, and the second common voltage is set to a fourth voltage level to drive the second common electrode. | 02-12-2015 |
20150039928 | DATA PROCESSING METHOD AND APPARATUS - A data processing method and apparatus are provided. The data processing apparatus includes a converter module and a control module. The converter module receives a clock signal through a pin, and decides a bit value of the first data according to a length of a corresponding period of the clock signal. The control module determines whether to perform a bit writing operation for writing the bit value into a memory according to the clock signal and the first data. | 02-05-2015 |
20150029240 | Data interpolation method and system - A data interpolation method is utilized for obtaining an interpolation data of an interpolation point in a destination data, and a data number of the destination data has a horizontal magnification factor and a vertical magnification factor compared to a data number of a source data. The data interpolation method includes obtaining an input data from the source data according to an interpolation position of the interpolation point corresponding to the destination data, the horizontal magnification factor, and the vertical magnification factor, wherein the input data includes a plurality of input pixel values corresponding to a plurality of pixels; performing at least one reordering and interpolation calculating process on the plurality of input pixel values to obtain a plurality of output pixel values; and selecting an output pixel value from the plurality of output pixel values and outputting the output pixel value as the interpolation data of the interpolation point. | 01-29-2015 |
20150029134 | DRIVING AND SENSING METHOD FOR SINGLE-LAYER MUTUAL CAPACITIVE MULTI-TOUCH SCREEN - A driving and sensing method for a single-layer mutual capacitive multi-touch screen includes inputting a first driving signal to a plurality of touch sensing electrodes along a first direction and receiving a first sensing signal corresponding to the first driving signal along the first direction; and inputting a second driving signal to the plurality of touch sensing electrodes along a second direction and receiving a second sensing signal corresponding to the second driving signal along the second direction; wherein the second direction is substantially perpendicular to the first direction. The plurality of touch sensing electrodes are disposed in the single-layer mutual capacitive multi-touch screen, and each of the plurality of touch sensing electrodes includes at least one driving area and at least one receiving area, wherein all driving areas and receiving areas are located in a same layer of the single-layer mutual capacitive multi-touch screen. | 01-29-2015 |
20150023585 | Matching search method and system - A matching search method is utilized for performing a matching search from a first image block to a second image block in a stereo matching system. The matching search method includes obtaining a global offset of the first image block corresponding to the second image block according to an offset relationship between a first image data of the first image block and a second image data of the second image block; and performing the matching search from the first image block to the second image block according to the global offset and a searching range. | 01-22-2015 |
20150022744 | SINGLE FPC BOARD FOR CONNECTING MULTIPLE MODULES AND TOUCH SENSITIVE DISPLAY MODULE USING THE SAME - A single flexible printed circuit (FPC) board for connecting multiple modules including a thin film is provided. The thin film has a first module connecting portion, a second module connecting portion and a third module connecting portion. The first module connecting portion is located on a first side of the thin film. The second module connecting portion and the third module connecting portion are located on a second side of the thin film. The first side is opposite to the second side. At least one first line is disposed between the first module connecting portion and the second module connecting portion. At least one second line is disposed between the first module connecting portion and the third module connecting portion. | 01-22-2015 |
20150022483 | TOUCH DISPLAY APPARATUS - A touch display apparatus includes a display panel, a cover plate, a capacitive touch-sensing unit and an electromagnetic touch-sensing unit. The cover plate is disposed above the display panel. The capacitive touch-sensing unit is disposed between the cover plate and the display panel. The electromagnetic touch-sensing unit is disposed between the capacitive touch-sensing unit and the display panel. The capacitive touch-sensing unit and the electromagnetic touch-sensing unit are formed of a transparent conductive material. | 01-22-2015 |
20150022268 | DC OFFSET CANCELLATION CIRCUIT - A DC offset cancellation circuit is provided. The DC offset cancellation circuit includes a first operational amplifier and a feedback gain circuit. The first operational amplifier includes a first input transconductance stage, a second input transconductance stage and an output stage. An input terminal of the first input transconductance stage receives an input signal of the first operational amplifier through a first input terminal of the first operational amplifier. An output terminal of the output stage outputs an output signal of the first operational amplifier through an output terminal of the first operational amplifier. An input terminal of the feedback gain circuit is coupled to the output terminal of the first operational amplifier, and an output terminal of the feedback gain circuit is coupled to the input terminal of the second transconductance stage through a second input terminal of the first operational amplifier. | 01-22-2015 |
20150015534 | TOUCH PANEL - The touch panel includes a plurality of touch pads arranged in an array on the touch panel. Each of the touch pads are arranged in N columns and M rows, the touch pad in the i | 01-15-2015 |
20150010248 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD USING THE SAME - An image processing apparatus for adjusting the luminance of a target pixel of an image is provided. The target pixel includes original pixel data and corresponds to a mask value. The image processing apparatus includes a luminance detection unit, a luminance compensation unit and a mapping unit. The luminance detection unit generates an original luminance value according to the original pixel data. The luminance compensation unit adjusts the original luminance value according to a non-linear function to generate a compensated luminance value. The mapping unit generates adjusted pixel data according to the compensated luminance value. The non-linear function at least includes a first monomial function, which has a base part associated with an inverse value of the original luminance value and an exponent part associated with the mask value. | 01-08-2015 |
20150010230 | Image matching method and stereo matching system - An image matching method is utilized for performing a stereo matching from a first image block to a second image block in a stereo matching system. The image matching method includes performing a matching computation from the first image block to the second image block according to a first matching algorithm to generate a first matching result; performing the matching computation between the first image block and the second image block according to a second matching algorithm to generate a second matching result and a third matching result; obtaining a matching error and a matching similarity of the first image block according to the second matching result and the third matching result; and determining a stereo matching result of the first image block according to the matching error and the matching similarity. | 01-08-2015 |
20150009250 | MULTIPLE POLARITY INVERSION DRIVING METHOD AND DISPLAY DRIVER, TIMING CONTROLLER, AND DISPLAY DEVICE USING THE SAME - A multiple polarity inversion driving method is provided, capable of being operated in a number of inversion schemes, and being flexibly adjusted in accordance with different design requirements and application conditions. The driving method includes providing display data in accordance with an inversion switching time unit as a repeated time unit. The inversion switching time unit has a number of different types of polarity distribution pattern intervals. Additionally, the display data provided to the different types of polarity distribution pattern intervals respectively have different types of polarity distribution patterns on the display. | 01-08-2015 |
20150009192 | IMAGE DISPLAY APPARATUS AND IMAGE OPTIMIZATION METHOD THEREOF - An image display apparatus and an image optimization method are provided. The image display apparatus includes an image content analyzer, a luminance compensator, and an image optimization processor The image content analyzer receives image data and ambient luminance and generates a backlight luminance adjustment value according to the image data and the ambient luminance. The luminance compensator generates an image data luminance adjustment value according to the backlight luminance adjustment value and generates first image data by adjusting the luminance of the image data according to the image data luminance adjustment value. The image optimization processor generates a saturation adjustment weight according to the image data luminance adjustment value. According to the saturation adjustment weight, the image optimization processor generates output image data by adjusting the luminance of the first image data. | 01-08-2015 |
20150009114 | DIMMING METHOD AND DIMMING DEVICE FOR BACKLIGHT MODULE - A dimming method and dimming device for a backlight module are provided. The dimming method includes the following steps. Light distribution information of a plurality of light sources of the backlight module corresponding to a display panel is provided. According to the light distribution information of each of the light sources, a plurality of light contribution ratios of the light sources corresponding to a plurality of different positions of the display panel are obtained respectively. According to the light contribution ratios corresponding to the different positions, the needed intensity of each of the light sources is determined respectively. | 01-08-2015 |
20150009095 | IMAGE DISPLAY SYSTEM AND ASSOCIATED METHOD - An image display system includes a data output source, and receiving devices coupled to the data output source. The receiving devices decode a first packet header from the data output source to determine whether a first payload data associated with the first packet header is required by the receiving devices. Among the receiving devices, a first receiving device that requires the first payload data receives and displays the first payload data. Also among the receiving devices, a second receiving device that does not require the first payload data temporarily disables its data receiving function, and, before the data output source sends out a second packet header that the second receiving device requires, the second receiving device resumes its data receiving function and displays a second payload data. | 01-08-2015 |
20140375696 | IMAGE DISPLAY APPARATUS AND BACKLIGHT ADJUSTING METHOD THEREOF - An image display apparatus and a backlight adjusting method are provided. The image display apparatus has a backlight module. The image display apparatus includes an ambient light sensor, an image content analyzer and a backlight controller. The ambient light sensor detects a luminance of ambient light. The image content analyzer receives an image data. The backlight controller sets a backlight basic value according to the luminance of ambient light, and sets a backlight adjusting ratio according to the image data and the luminance of ambient light. The backlight controller further sets a luminance of the backlight module according to the backlight basic value and the backlight adjusting ratio. | 12-25-2014 |
20140375695 | DISPLAY DRIVING APPARATUS - A display driving apparatus including a plurality of driving circuits and a controller is provided. The driving circuits include a main driving circuit and a plurality of slave driving circuits. The driving circuits respectively receive a plurality of partial data of a display data from the controller. The slave driving circuits and the main driving circuit respectively generate a plurality of slave luminance distribution data and a main luminance distribution data. The slave driving circuits transport the generated slave luminance distribution data to the main driving circuit, and the main driving circuit generates a luminance control signal according to the slave luminance distribution data and the main luminance distribution data. | 12-25-2014 |
20140375620 | DISPLAY APPARATUS AND SOURCE DRIVER THEREOF - A display apparatus and a source driver thereof are disclosed. The source driver includes a temperature sensor and a power switch. The temperature sensor is configured to measure a first working temperature of the source driver, and generate an over-temperature protection enable signal by comparing the first working temperature with a preset temperature. The power switch is coupled to a power transmission path for a core circuit of the source driver to receive an operating power, and configured to turn on or cut off the power transmission path according to the over-temperature protection enable signal. | 12-25-2014 |
20140372834 | Serial Interface Packet Information Detection and Control Method and Receiver Thereof - A serial interface packet information detection and control method for a Mobile Industry Processor Interface is disclosed. The serial interface packet information detection and control method includes receiving and decoding a packet; generating a control signal according to packet information of a header of the packet; and disabling a function register according to the control signal. | 12-18-2014 |
20140372029 | Navigating and Routing Device - A navigating and routing device for a mobile device is disclosed. The navigating and routing device includes a setting unit, for setting a local device information of the navigating and routing device and at least one device information of at least one navigating and routing device of at least one mobile device; a positioning unit, for obtaining a local position information of the navigating and routing device and at least one positioning information of the at least one navigating and routing device via a positioning system according to the local device information and the at least one device information; and a navigating and routing unit, for navigating and routing a route from the mobile device to a target according to a position of the target and the local position information. | 12-18-2014 |
20140368750 | SINGLE-LAYER MUTUAL CAPACITIVE TOUCH SCREEN - A single-layer mutual capacitive touch screen includes a substrate; a control circuit, disposed at a side of the substrate; a plurality of touch sensing electrodes, arranged on the substrate in an N×M array and classified into a first group and a second group; a plurality of output pins, for connecting the control circuit to the plurality of touch sensing electrodes; and a plurality of driving wires, each connecting a touch sensing electrode and an output pin. In the first group, each touch sensing electrode located at odd columns of the N×M array substantially shares an output pin with an adjacent touch sensing electrode located in a first direction of the touch sensing electrode. In the second group, each touch sensing electrode located at even columns of the N×M array substantially shares an output pin with an adjacent touch sensing electrode located in the first direction of the touch sensing electrode. | 12-18-2014 |
20140368553 | SOURCE DRIVER APPARATUS AND DRIVING METHOD OF DISPLAY PANEL - A source driver apparatus configured to drive a display panel is provided. The source driver apparatus includes a data operation circuit and a pixel driving circuit. The data operation circuit is configured to receive pixel data and perform a polarity determination operation on the pixel data to determine a polarity distribution information of pixels on the display panel. The pixel driving circuit is coupled to the data operation circuit. The pixel driving circuit is configured to drive the display panel according to the pixel data and the polarity distribution information. Furthermore, a driving method of the display panel is also provided. | 12-18-2014 |
20140368477 | SOURCE DRIVER - A source driver for driving a display panel is provided. The source driver includes a data processing circuit, a data transmission interface and a driving channel. The data processing circuit receives a frame data and converts the frame data having a serial format into the frame data having a parallel format. The data processing circuit copies the frame data. The frame data corresponds to a display frame. The data transmission interface is coupled to the data processing circuit and transmits the copied frame data. The driving channel is coupled to the data transmission interface and receives the copied frame data and drives the display panel by the copied frame data. For an identical display frame, a data quantity of the frame data transmitted by the data transmission interface is greater than a data quantity of the frame data received by the data processing circuit. | 12-18-2014 |
20140368253 | LEVEL CONVERSION CIRCUIT AND METHOD FOR CONVERTING VOLTAGE LEVEL THEREOF - A level conversion circuit including a first level shifter and a second level shifter is provided. The first level shifter converts a first control voltage into a second control voltage during a voltage conversion period. The second level shifter is coupled to the first level shifter. The second level shifter converts the second control voltage into a third control voltage during the voltage conversion period to control a next stage circuit. The first level shifter is configured to detect a voltage level of a power domain where the third control voltage operates and generate a plurality of middle voltages based on the detection result. The second level shifter is configured to generate the third control voltage based on the middle voltages. Furthermore, a voltage level conversion method is also provided. | 12-18-2014 |
20140340552 | Image Sensor - An image sensor includes a pixel unit and a pixel readout circuit. The pixel unit includes an image pixel array including a plurality of image pixel columns, respectively; a first reference pixel array including a plurality of first reference pixel columns; and a bias circuit, coupled to the image pixel columns for generating a plurality of column sensing signals, coupled to the first reference pixel columns for generating a plurality of first reference signals, and further for generating a first average reference voltage signal according to the plurality of first reference signals. The pixel readout circuit generates a plurality of reset values and a plurality of sampling values according to the column sensing signals and the first average reference voltage signal, wherein the plurality of reference pixel rows is less than the plurality of image pixel rows. | 11-20-2014 |
20140332664 | IMAGE SENSOR - An image sensor including a plurality of sensing pixels, a plurality of micro-lenses disposed on the sensing pixels and a plurality of first light distributing elements disposed between the sensing pixels and the micro-lenses is provided. Each of the first light distributing elements includes a first refractive index pattern and a second refractive index pattern surrounding the first refractive index pattern. The refractive index of the first refractive index pattern is larger than the refractive index of the second refractive index pattern. | 11-13-2014 |
20140327704 | Intensity Compensation Method and Display Control Device and Image Display Device Applying the same - An intensity compensation method for a display control device includes steps of obtaining a plurality of backlight duties of a plurality of backlights according to an image data; calculating a plurality of compensation gains according to the plurality of backlight duties and a non-uniform backlight profile, wherein the non-uniform backlight profile indicates a plurality of respective actual intensity distributions of the plurality of backlights; and compensating a plurality of first image intensities corresponding to a plurality of pixels of the image data according to the plurality of compensation gains, to obtain a plurality of second image intensities. | 11-06-2014 |
20140320474 | DISPLAY DRIVER AND DISPLAY DIVING METHOD - A display driver, which comprises: a first predetermined voltage level providing apparatus, for providing a first predetermined voltage level group comprising at least one first predetermined voltage level; a first image data providing apparatus, for outputting a first image data; and a detection controlling circuit, for determining if an output terminal of the first image data providing apparatus is pre-charged to the first predetermined voltage level according to a relation between an absolute value of a voltage level of the first image data and an absolute value of the first predetermined voltage level. | 10-30-2014 |
20140313378 | Fixed Pattern Noise Removal Method - A fixed pattern noise removal method for an image sensor includes steps of calculating each compensation value corresponding to each pixel column according to a plurality of compensation pixel values of the each pixel column; and sampling a plurality of active pixel values in an active pixel area and compensating the plurality of active pixel values according to the each compensation value of the each pixel column, to generate a plurality of compensated active pixel values. A plurality of active pixels sense light to generate the plurality of active pixel values. | 10-23-2014 |
20140313286 | DISPLAY APPARATUS AND IMAGE DISPLAY METHOD THEREOF - A display apparatus and an image display method of the display apparatus are provided, and the image display method includes following steps. Video contents that include a plurality of single frame images are received. A detection zone of the single frame images is determined according to a current scale mode of the display apparatus, and the different scale modes correspond to the different detection zones. The detection zone of each single frame image is detected to determine an image format of the video contents. A play mode of the display apparatus is adjusted according to the image format, and the video contents which are scaled are displayed by the display apparatus in the play mode. | 10-23-2014 |
20140306969 | Display method and system capable of dynamically adjusting frame rate - A display method for a monitor is capable of dynamically adjusting a frame rate of a display panel in a monitor. The display method includes storing a display data outputted from a host to a memory unit, generating a control signal according to a frequency of storing the display data to the memory unit, adjusting the frame rate according to the control signal and a predefined adjustment value, and outputting the display data stored in the memory unit to the display panel according to the frame rate. | 10-16-2014 |
20140306968 | Method of Reading Data, Method of Transmitting Data and Mobile Device thereof - A method of reading data for a display drive IC of a panel is provided. The method includes receiving a write format and at least one image packet, generating a synchronization signal according to the write format, and reading data of the at least one image packet according to the synchronization signal such that the panel uses a video mode to display the data of the at least one image packet. | 10-16-2014 |
20140306925 | Sensing Method And Related Device For Touch Panel - A sensing method for a touch panel is disclosed. The touch panel includes a plurality of sensing lines and a plurality of driving lines. The sensing method includes generating an electromagnetic signal or a capacitive signal; forming a plurality of first loops through the plurality of sensing lines to sense X coordinate of the electromagnetic signal on the touch panel and forming a plurality of second loops through the plurality of driving lines to sense Y coordinate of the electromagnetic signal on the touch panel when the electromagnetic signal is generated; sensing X coordinate of the capacitive signal through the plurality of sensing lines and sensing Y coordinate of the capacitive signal through the plurality of driving lines when the capacitive signal is generated. | 10-16-2014 |
20140306768 | OPERATIONAL AMPLIFIER CIRCUIT - An operational amplifier circuit including a main circuit, a compensation capacitor, a power circuit, and a set of switches is disclosed. The main circuit has an output terminal. The compensation capacitor has a first end connected to an internal node of the main circuit and a second end connected to the output terminal of the main circuit. The power circuit provides a current or a voltage as predetermined. The set of switches connects the power circuit to the compensation capacitor. When the main circuit is not in an output state, the set of switches is switched to allow the power circuit to provide the current or voltage to the compensation capacitor. When the main circuit is in the output state, the set of switches is switched to disconnect the power circuit from the compensation capacitor and allow the main circuit to return to an output circuit state and operate normally. | 10-16-2014 |
20140306676 | COMPENSATION MODULE and VOLTAGE REGULATOR - A compensation module for a voltage regulation device having a gain stage, an output stage and a miller compensation module includes a low-output-impedance non-inverting amplifier unit coupled to a gain output of the gain stage and an output-stage input of the output stage. | 10-16-2014 |
20140292632 | DISPLAY APPARATUS, DATA GAIN REGULATING CIRCUIT AND DATA GAIN REGULATING METHOD - A display apparatus, a data gain regulating circuit and a data gain regulating method are provided. The display apparatus includes a display module, a backlight module and the data gain regulating circuit. The backlight module provides backlight to the display module. The data gain regulating circuit is coupled to the display module and determines a gain value according to ambient light information and backlight information. The data gain regulating circuit regulates display data according to the gain value to obtain regulated display data and transmits the regulated display data to the display module. | 10-02-2014 |
20140285260 | Output Buffer Circuit Capable of Enhancing Stability - An output buffer circuit of a source driver includes an operational amplifier, having a first terminal as an output of the operational amplifier, and an output control unit, coupled between the output terminal of the operational amplifier and a second terminal for driving a load, to generate a variable impedance of a signal output path between the first terminal and the second terminal, wherein when the operational amplifier charges or discharges the second terminal to reach a predetermined level, the output control unit change a value of the variable impedance of the signal output path. | 09-25-2014 |
20140267146 | TOUCHING APPARATUS AND TOUCHING DETECTING METHOD THEREOF - A touching apparatus and a touching detecting method thereof are provided. The touching detecting method is adapted for a touch panel. The touch panel has a plurality of touching rows and a plurality of touching columns. The touching detecting method includes: performing a mutual-capacitor touching detection and a self-capacitor touching detection alternatively to the touch panel for obtaining a mutual-capacitor detection result and a self-capacitor detection result, respectively; and obtaining position information of at least one touch point on the touch panel by an operation based on the mutual-capacitor detection result and the self-capacitor detection result. | 09-18-2014 |
20140253240 | CIRCUIT OF OPERATIONAL AMPLIFIER - A circuit of an operational amplifier includes an operational main circuit, a plurality of current sources, and at least one clamp circuit. The current sources are configured to connect the operational main circuit to a high voltage source or a ground voltage source. The clamp circuit is connected between the operational main circuit and at least one of the current sources. Here, a transistor device connected to the clamp circuit has a crossing-voltage endurance level which is lower than a preset crossing-voltage endurance level of the operational main circuit. | 09-11-2014 |
20140247402 | In-cell Touch Control Panel - An in-cell touch control panel includes a liquid crystal layer; a top glass; a bottom glass; a plurality of driving electrodes, formed between the top glass and the liquid crystal layer; and a plurality of sensing electrodes, formed between the bottom glass and the liquid crystal layer, and perpendicular to the plurality of driving electrodes. The plurality of driving electrodes and the plurality of sensing electrodes are utilized for sensing a touch point on the in-cell touch control panel. | 09-04-2014 |
20140247244 | CAPACITIVE TOUCH SCREEN AND CONTROL METHOD THEREOF - A capacitive touch screen includes a plurality of touch sensing electrodes and a touch controller. Each of the plurality of touch sensing electrodes includes at least one driving area and at least one receiving area. The at least one driving area and the at least one receiving area are located in a same layer of the capacitive touch screen. The touch controller, electrically connected to the at least one driving area and the at least one receiving area in the plurality of touch sensing electrodes, is utilized for scanning the at least one driving area in order and detecting signals received by the at least one receiving area, or scanning the at least one receiving area in order and detecting signals received by the at least one driving area. | 09-04-2014 |
20140247075 | INTERFACE CIRCUIT FOR SIGNAL TRANSMISSION - An interface circuit for signal transmission includes an amplifying circuit, a de-skew circuit and a latching unit. The amplifying circuit receives an input clock signal and outputs an output clock signal after amplifying the input clock signal. The de-skew circuit receives the output clock signal and outputs a de-skew clock signal as a trigger signal after removing a skew time of the output clock signal. The latching unit includes multiple sampling circuits, respectively receives multiple inputting data signals. The sampling circuits are controlled by the trigger signal to sample the inputting data signals and output multiple outputting data signals. The voltage amplitudes of the outputting data signals are larger than the voltage amplitudes of the inputting data signals and satisfy a required voltage amplitude by a subsequent circuit. | 09-04-2014 |
20140246989 | CHARGE RECYCLING DEVICE AND PANEL DRIVING APPARATUS AND DRIVING METHOD USING THE SAME - A charge recycling device for a panel display apparatus is disclosed. The charge recycling device includes one or more storage capacitors, and one or more switch modules coupled to the one or more storage capacitors and coupled to a plurality of load capacitors via a plurality of source driving nodes, for controlling currents between the plurality of load capacitors and the one or more storage capacitors. During a charge recycling period, the one or more switch modules are arranged to recycle charges stored in the plurality of load capacitors to the one or more storage capacitors. During a charge reutilization period, the one or more switch modules are arranged to redistribute the recycled charges to the plurality of load capacitors. | 09-04-2014 |
20140241459 | CLOCK-EMBEDDED DATA GENERATING APPARATUS AND TRANSMISSION METHOD THEREOF - A clock-embedded data generating apparatus and transmission method are disclosed. The steps of the transmission method include: generating a plurality of preamble signals according to a number sequence, where each of the preamble signals has a plurality of bits. The number sequence includes a plurality of values, and the bits of each of the preamble signals are decided by each of the corresponding values; transmitting the preamble signals during a plurality of preamble signal transmitting periods respectively, and transmitting a plurality of data signal during a plurality of data signal transmitting periods respectively. | 08-28-2014 |
20140232713 | DISPLAY DRIVING APPARATUS AND METHOD FOR DRIVING DISPLAY PANEL - A display driving apparatus configured to drive a display panel is provided. The display driving apparatus includes a plurality of source drivers. The source drivers are configured to output a video image data to drive the display panel. Each of the source drivers includes a plurality of driving channels. Each of the source drivers randomly turns on at least one of the included driving channels via a control signal, so as to allow the driving channels outputting the video image data. In each of the source drivers, at least a part of the driving channels are randomly turned on to output the video image data. Furthermore, a method for driving the display panel of the foregoing display driving apparatus is also provided. | 08-21-2014 |
20140232627 | Driving Device For Driving Liquid Crystal Display Device - The present disclosure provides a driving device for driving a liquid crystal display (LCD) device. The driving device comprises a plurality of first charge sharing switches and a plurality of second charge sharing switches. Each of the plurality of first charge sharing switches is individually coupled between two adjacent odd data channels of a plurality of data channels. Each of the plurality of second charge sharing switches is individually coupled between two adjacent even data channels of the plurality of data channels. | 08-21-2014 |
20140231121 | FLEXIBLE CIRCUIT BOARD AND GROUND LINE STRUCURE - A ground line structure adapted to a flexible circuit board is provided. The ground line structure includes a plurality of ground line structure units located on the flexible circuit board to form a meshed pattern. The ground line structure units include a plurality of ground line edge segments, a ground line middle segment and a plurality of ground line connecting segments. The ground line edge segments define an edge shape of each ground line structure unit. The edge shape of each ground line structure unit is a hexagon. The ground line connecting segments are configured to connect the ground line middle segment and the ground line edge segments. The ground line edge segments, the ground line middle segment and the ground line connecting segments form a plurality of pentagonal electrode structures within the hexagonal ground line structure unit. A flexible circuit board including the ground line structure is also provided. | 08-21-2014 |
20140218333 | COORDINATE CALCULATING METHOD AND TOUCH MODULE FOR SINGLE-LAYER CAPACITIVE TOUCH DEVICE - A coordinate calculating method includes acquiring a plurality of first end capacitances and a plurality of second end capacitances corresponding to a plurality of sensing channels of a single-layer capacitive touch device. Differences between the plurality of first end capacitances and a plurality of first baselines are calculated for acquiring a plurality of first differences and calculating differences between the plurality of second end capacitances and a plurality of second baselines for acquiring a plurality of second differences The first difference and the second difference of each sensing channel are added for acquiring a plurality of total capacitances. Whether the single-layer capacitive touch device is pressed is determined according to the plurality of total capacitances and a threshold. A coordinate of at least one touch point is outputted when determining the single-layer capacitive touch device is pressed. | 08-07-2014 |
20140218111 | OPERATIONAL AMPLIFIER CIRCUIT AND METHOD FOR ENHANCING DRIVING CAPACITY THEREOF - An operational amplifier circuit configured to drive a load is provided. The operational amplifier circuit includes an output stage module. The output stage module includes a detection circuit and an output stage circuit. The detection circuit is configured to detect a current output voltage and a previous output voltage based on a comparison result of a current input voltage and the current output voltage. The detection circuit enhances a charge capacity or a discharge capacity of the output stage circuit for the load based on a detection result. Furthermore, a method for enhancing the driving capacity of the operational amplifier circuit is also provided. | 08-07-2014 |
20140210698 | DRIVING METHOD FOR REDUCING EMI AND DEVICE USING THE SAME - A driving method for reducing EMI in a driving device includes detecting a voltage difference between a first display voltage and a second display voltage which correspond to the same pixel, for generating a detecting signal; and adjusting an operating method of a charge sharing switch utilized for performing charge sharing in the driving device according to the detecting signal. | 07-31-2014 |
20140210521 | GATE OR SOURCE DRIVING APPARATUS - A gate/source driving apparatus includes a first gate/source driving chip and a second gate/source driving chip. The first gate/source driving chip includes a plurality of first charge pump circuits, each of which has a voltage input end, a voltage output end, a first capacitor end, and a second capacitor end. The second gate/source driving chip includes a plurality of second charge pump circuits, each of which also has a voltage input end, a voltage output end, a first capacitor end, and a second capacitor end. The voltage output end of at least one of the first charge pump circuits is coupled to the voltage input end of at least one of the second charge pump circuits. | 07-31-2014 |
20140204274 | DISPLAY DEVICE AND COLOR ADJUSTMENT METHOD THEREOF, AND METHOD FOR DISPLAYING VIDEO SIGNAL - A device for image processing includes a video signal receiver, for receiving at least one video signal, wherein an image frame of the at least one video signal includes: a plurality of pixel groups; a color engine; and an output stage, coupled to the color engine, for outputting the adjusted at least one video signal. The color engine includes: a local adjusting unit, configured to locally adjust at least one of color hue, luminance factor and saturation of a specific pixel group of the pixel groups without adjusting any other pixel group of the pixel groups, wherein the specific pixel group has color hue in a predetermined range that is a part of a full range of color hue; and a global adjusting unit, configured to globally adjust at least one of color hue, luminance factor and saturation of each of the pixels of the image frame. | 07-24-2014 |
20140204064 | TIMING CONTROL CIRCUIT, IMAGE DRIVING APPARATUS, IMAGE DISPLAY SYSTEM AND DISPLAY DRIVING METHOD - A timing control circuit configured to drive a source driver circuit is provided. The timing control circuit includes a signal receiving unit and a signal output unit. The signal receiving unit receives an input signal. The input signal includes an image signal. The signal output unit generates an output signal according to the input signal. The output signal includes the image signal. A period when the input signal corresponds to a static image includes one or more frame partially-masked periods. During a first time interval of the frame partially-masked period, the image signal of the output signal is not masked but output by the signal output unit. During a second time interval of the frame partially-masked period, the image signal of the output signal is masked but not output by the signal output unit. Furthermore, a display driving method of a display panel is also provided. | 07-24-2014 |
20140198089 | IMAGE PROCESSING UNIT, IMAGE PROCESSING APPARATUS AND IMAGE DISPLAY SYSTEM - An image processing unit including an always on circuit block and a non-always on circuit block is provided. When operating under a first operation mode, the non-always on circuit block receives a bias voltage from a power supply unit, so as to perform an image processing operation on an image input signal. When operating under a second operation mode, the non-always on circuit block stops receiving the bias voltage from the power supply unit, so as to stop the image processing operation, and at least a microcontroller of the non-always on circuit block is powered down. One of the always on circuit block and the non-always on circuit block controls the power supply unit to stop supplying the bias voltage to the non-always on circuit block according an event trigger signal, such that the non-always on circuit block enters the second operation mode from the first operation mode. | 07-17-2014 |
20140193070 | NOISE ESTIMATION APPARATUS AND METHOD THEREOF - A noise estimation apparatus for calculating a noise estimation value of a frame of an image is provided. The noise estimation apparatus includes a distribution calculation unit, a variance calculation unit, a distribution curve generation module and a noise estimation unit. The distribution calculation unit generates a pixel distribution according to multiple pixel data of an i | 07-10-2014 |
20140192010 | Capacitive Touch Panel - A capacitive touch panel is disclosed to include a plurality of sensing channels disposed along a first direction and a second direction, respectively, and including a plurality of sensing modules. Each of the plurality of sensing modules includes a sensing unit and a plurality of dummy units being separately disposed to form a plurality of boundaries. A plurality of extension rays of the plurality of boundaries, the first direction and the second direction are interlaced to form a plurality of angles being in the range from zero degrees to ninety degrees or from ninety degrees to a hundred and eighty degrees. A plurality of connecting units is disposed along the first direction and the second direction for connecting the plurality of sensing modules. The first direction is perpendicular to the second direction and the plurality of sensing channels is perpendicular to each other on a projective plane. | 07-10-2014 |
20140184939 | TOUCH STRUCTURE - A touch structure is provided. The touch structure includes a first sensing electrode, a second sensing electrode, a first dummy pattern and a second dummy pattern. The first sensing electrode and the second sensing electrode are arranged in a staggered manner and electrically insulated from each other. The first dummy pattern is adjacent to the first sensing electrode and has a first pattern acute angle. The second dummy pattern is adjacent to the second sensing electrode and has a second pattern acute angle. The first dummy pattern and the second dummy pattern are separated from each other. The first pattern acute angle and the second pattern acute angle are faced toward the same overlapped portion between the first sensing electrode and the second sensing electrode substantially. | 07-03-2014 |
20140184581 | 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. | 07-03-2014 |
20140173373 | DECODING METHOD FOR LOW DENSITY PARITY CHECK AND ELECTRONIC DEVICE USING THE SAME - A decoding method for low density parity check (LDPC) and an electric device using the decoding method are provided. The decoding method includes: receiving a message and executing an iteration decoding to the message; obtaining first belief values of the message in an (i−1) | 06-19-2014 |
20140164691 | MEMORY ARCHITECTURE FOR DISPLAY DEVICE AND CONTROL METHOD THEREOF - A memory architecture for a display device and a control method thereof are provided. The memory architecture includes a display data memory and a memory controller. The display data memory includes N sub-memories and N×M arbiters, wherein N is a positive integer and M is a positive integer equal to or greater than 2. Each sub-memory includes M memory blocks divided by an address. Each M arbiters are coupled to the M memory blocks of each sub-memory. The memory controller, coupled to the N×M arbiters, generates N×M sets of request signals and output address signals according to a set of an input request signal and an input address signal, and transmits to the N×M arbiters to sequentially control the N×M arbiters. | 06-12-2014 |
20140161350 | COLOR TRANSLATION METHOD AND COLOR TRANSLATION APPARATUS - A color translation method and a color translation apparatus adapted to map a data point from a first color space to a second color space are provided. At least four color axes coordinating with a plurality of first reference points and a plurality of second reference points corresponding to the first reference points are used to divide the first color space and second color space into a plurality of first sub-spaces and a plurality of second sub-spaces. A target first sub-space where the data point is located is found, and then a corresponding target second sub-space is also found. According to a positional relationship between the data point and the first reference points which define the target first sub-space, an interpolation operation is applied to the second reference points which define the target second sub-space so as to obtain a mapped point in the second color space. | 06-12-2014 |
20140160183 | TIMING SCRAMBLING METHOD AND TIMING CONTROL CIRCUIT THEREOF - A timing scrambling method, for a timing control device corresponding to a plurality of source driving devices, includes adjusting a selecting signal according to a clock signal; selecting one of a plurality of scrambling generating units according to the selecting signal to generate a timing scrambling signal; and generating scrambling data for the plurality of source driving devices according to the timing scrambling signal. | 06-12-2014 |
20140160113 | METHOD AND IMAGE PROCESSING DEVICE FOR ADJUSTING STEREO IMAGE - A method and an image processing device for adjusting a stereo image are provided. The method includes: obtaining a disparity map between a first image and a second image; dividing the disparity map into layers which correspond to first layers of the first image and second layers of the second image; generating a first cost according to displacements of pixels of an i | 06-12-2014 |
20140160105 | SOURCE DRIVER - A source driver for driving a data line is provided. The source driver includes an output pin, a buffer amplifier, a first switch, a recycle capacitor, a second switch, a power supply circuit and a third switch. The output pin is coupled to the data line. The first switch electrically connects the buffer amplifier to the output pin in a charge period. The second switch is coupled to the recycle capacitor, and electrically connects the recycle capacitor to the output pin in a recollection period. The recollection period is after the charge period. The third switch electrically connects the recycle capacitor to the power supply circuit in a reuse period. The reuse period is after the recollection period. | 06-12-2014 |
20140160104 | DISPLAY DRIVING METHOD AND ASSOCIATED DRIVING CIRCUIT FOR DISPLAY APPARATUS - A display driving method and an associated driving circuit are provided, where the display driving method includes: checking relationships between two voltage levels respectively represented by two continuously received digital codes received by a specific digital code input terminal and a first predetermined threshold, and preferably further checking a relationship between at least one voltage level represented by at least one digital code of the two continuously received digital codes and a first predetermined zone, in order to determine whether to pre-charge a specific set of display cells within a plurality of sets of display cells, the specific set corresponding to the specific digital code input terminal; when it is determined to pre-charge the specific set of display cells, temporarily conducting a pre-charging voltage generator to the specific set of display cells to pre-charge the specific set of display cells. | 06-12-2014 |
20140160095 | Backlight Module and Switching Method thereof - A backlight module for a display device includes a clock generation module for generating a clock signal, a control module for generating a control signal and a selection control signal, a selection module coupled to the clock generation module and the control module for generating a selection result according to the clock signal and the control signal, and an output module coupled to the selection module for outputting the selection result according to the selection control signal, wherein the selection result controls the display device to be operated in a normal backlight mode, a transition mode or a flashing backlight mode. | 06-12-2014 |
20140159787 | SPREAD-SPECTRUM CLOCK GENERATOR - A spread-spectrum clock generator includes a frequency comparator, for generating a compensation signal according to a reference signal and a frequency signal corresponding to an output frequency signal; a triangle-wave generator, for generating a triangle-wave signal according to a frequency control signal; an adder, coupled between the triangle-wave generator and the frequency comparator, for adding the compensation signal to the triangle-wave signal to generate an addition result; and a frequency synthesizer, coupled between the frequency comparator and the adder, for generating the output frequency signal to adjust the output frequency signal according to the addition result so as to reduce a shift of the output frequency signal. | 06-12-2014 |
20140153840 | METHOD FOR CORRECTING ROLLING SHUTTER EFFECT AND IMAGE PROCESSING DEVICE USING THE SAME - A method for correcting a rolling shutter effect is provided. The method includes: obtaining feature point pairs in images, wherein each of the feature point pairs corresponds to a motion vector; obtaining sampling points between two consecutive images in time; setting a moving velocity and an angular velocity of an image capturing unit at each of the sampling points as variables; obtaining estimating motion vectors according to the variables, a focal length of the image capturing unit, and row locations where the feature point pairs are located; executing an optimization algorithm according to a difference between the motion vectors and the estimating motion vectors, to calculate the moving velocity and the angular velocity corresponding to the variables; varying locations of pixels in an image according to the moving velocity and the angular velocity, to generate a first corrected image. Thereby, the rolling shutter effect in an image is removed. | 06-05-2014 |
20140141798 | Method and Computer System for Obtaining Weighted Geometric Dilution of Precision Closed Form - A method utilized in a wireless communication system having a mobile device and a plurality of base stations includes obtaining a geometric matrix according to a plurality of relative distances between the mobile device and the plurality of base stations, obtaining a weighted matrix according to the mobile device and the plurality of base stations, obtaining a weighted geometric dilution of precision according to the weighted matrix and the geometric matrix, so as to obtain a weighted geometric dilution of precision closed form, and choosing a plurality of selected base stations from the plurality of base stations according to the weighted geometric dilution of precision closed form to position the mobile device. | 05-22-2014 |
20140133058 | DRIVING CIRCUIT - A driving circuit includes several first electrostatic current limiting resistors and several digital to analog converter (DAC) units. First ends of these first electrostatic current limiting resistors common coupled to a global path to receive a reference voltage. These DAC units respectively coupled to second ends of the first electrostatic current limiting resistors one-on-one to receive the reference voltage through the first electrostatic current limiting resistors. | 05-15-2014 |
20140132742 | Three-Dimensional Stereo Display Device and Method - A method is disclosed for display images on a three-dimensional stereo display device includes generating a detection result according to user information, and generating a disparity range signal according to the detection signal, a display information and a comfort model, retrieving a dense disparity map signal of an original display signal. The method also includes generating an adjusted disparity map signal according to the disparity range signal and the dense disparity map signal and outputting an adjusted display signal according to the adjusted disparity map signal and the original display signal, to process a three-dimensional stereo display operation of the three-dimensional stereo display device. | 05-15-2014 |
20140132588 | DISPLAY PANEL AND DISPLAY APPARATUS - A display apparatus includes a source driver and a display panel. The source driver provides a plurality of pixel voltages which respectively correspond to a maximum gray-level voltage or a minimum gray-level voltage. The display panel includes a plurality of data lines, a plurality of pixel switches, a plurality of pixel capacitors, and a plurality of gray-level switches. The data lines are coupled to the source driver to receive the pixel voltages. Each pixel switch is respectively coupled to the corresponding data line to transmit the corresponding pixel voltage. Each pixel capacitor is respectively coupled between the corresponding pixel switch and a common voltage to receive the corresponding pixel voltage. Each gray-level switch is respectively coupled to the corresponding pixel capacitor in parallel and respectively receives a gray-level control signal. The gray-level switches regulate voltage drops across the pixel capacitors according to the corresponding gray-level control signals. | 05-15-2014 |
20140132587 | Integrated Source Driver and Liquid Crystal Display Device Using the Same - The present invention discloses an integrated source driver for a liquid crystal display device. The integrated source driver includes a reference voltage generating circuit, for providing a plurality of adjustable voltage ranges within a supply voltage and a ground level, and a reference voltage selecting circuit, including a plurality of digital to analog converters, for selecting and generating a plurality of internal reference voltages from the plurality of adjustable voltage ranges, respectively. The plurality of adjustable voltage ranges decrease progressively. | 05-15-2014 |
20140132580 | Liquid Crystal Display Monitor and Source Driver and Control Method Thereof - A liquid crystal display (LCD) monitor including an LCD display panel for displaying a frame, a timing controller for generating a polarity control signal and a latch signal, and a driving circuit including a plurality of source drivers, each of the plurality of source drivers including a comparison unit for comparing a common electrode voltage with a first and a second reference voltages to generate a comparison result, an enabling unit for generating an enabling signal according to the comparison result, a source driving signal and a reset signal, a horizontal dot inversion control unit for generating a horizontal dot inversion control signal according to the enabling signal, and a polarity control unit for generating a polarity inversion control signal and the reset signal according to the enabling signal, the polarity control signal and the latch signal. | 05-15-2014 |
20140132575 | TIMING CONTROLLER, SOURCE DRIVER, DISPLAY DRIVING CIRCUIT, AND DISPLAY DRIVING METHOD - A timing controller is provided. The timing controller includes a timing control circuit, a first scrambler and a second scrambler. The timing control circuit provides first source driving data and second source driving data. The first scrambler scrambles the first source driving data according to a first random number to generate first scrambled data. The second scrambler scrambles the second driving source data according to a second random number to generate second scrambled data. The second random number is different from the first random number. | 05-15-2014 |
20140132574 | MOTION DETECTION CIRCUIT AND MOTION DETECTION METHOD - A motion detection method is adapted for an image display circuit including a motion detection circuit and an arbitration circuit. In this motion detection method, a number of motion quality observation windows are defined. Each motion quality observation window includes a start point and an ending point. In the motion quality observation windows, a write frame count value is adjusted according to a write frame command. At the end point of each motion quality observation window, if the write frame count value is equal to or bigger than a preset count value, an enable signal is outputted to the arbitration circuit to determine whether the image display circuit performs motion display. In the motion quality observation windows, the end point of the i-th motion quality observation window is located between the start point and the end point of the (i+1)-th motion quality observation window, where i is a positive integer. | 05-15-2014 |
20140132327 | CHARGE PUMP MODULE AND VOLTAGE GENERATION METHOD THEREOF - A charge pump module including a ratio control circuit and a charge pump circuit is provided. The ratio control circuit provides a boost ratio based on a control signal. The ratio control circuit includes at least two ratio generation circuits having different boost ratios. The ratio control circuit dynamically switches between the ratio generation circuits to adjust the provided boost ratio based on the control signal. The charge pump circuit is coupled to the ratio control circuit. The charge pump circuit receives an input voltage and converts the input voltage into an output voltage based on the boost ratio provided by the ratio control circuit. Furthermore, a voltage generation method of a charge pump module is also provided. | 05-15-2014 |
20140132310 | DRIVING INTEGRATED CIRCUIT - A driving integrated circuit (IC) is disclosed. The driving IC comprises a signal processing circuit, a receiver and a terminal resistance providing circuit. The receiver is coupled to a first transmission line and a second transmission line and is output to the signal processing circuit after receiving a transmission signal through the first transmission line and the second transmission line. The terminal resistance providing circuit is coupled to the receiver. | 05-15-2014 |
20140126566 | Data Transmission System and Method - A data transmission system is utilized in a Mobile Industry Processor Interface (MIPI). A master device includes a control module for generating a control signal according to a feedback signal. A packet encoding module is coupled to the control module for encoding an original packet to be a transmission packet according to the original packet and the control signal to process a transmission operation. A slave device includes a packet decoding module for decoding the transmission packet to be the original packet or a related display device signal corresponding to the original packet to a display device. A feedback module is coupled to the packet decoding module for generating the feedback signal to the control module of the master device according to a decoding condition of the control module, so as to switch a transmission mode of the transmission operation. | 05-08-2014 |
20140125708 | DISPLAY DEVICE AND DATA DRIVING CIRCUIT THEREOF, DRIVING METHOD OF DISPLAY PANEL AND DISPLAY SYSTEM - A display device including a timing controller, a data driving circuit and a display system is provided. The timing controller outputs first pixel data according to input pixel data, wherein a color depth of the first pixel data is a first bit number or a second bit number smaller than the first bit number. The data driving circuit receives the first pixel data and a notice signal, and maps the first pixel data to generate second pixel data according to the notice signal when the color depth of the first pixel data is the second bit number, and directly takes the first pixel data as the second pixel data when the color depth of the first pixel data is the first bit number, and generates at least one driving voltage according to the second pixel data, wherein the color depth of the second pixel data is the first bit number. | 05-08-2014 |
20140125414 | OPERATIONAL AMPLIFIER CIRCUIT - An operational amplifier circuit includes an output stage circuit. The output stage circuit includes a first and a second output transistors, a capacitor unit, and a switch unit. A drain of the first output transistor is coupled to a drain of the second output transistor via an output terminal of the output stage circuit. The switch unit is coupled between gates of the first and the second output transistors and coupled to a first terminal of the capacitor unit. A second terminal of the capacitor unit is coupled to the output terminal of the output stage circuit. The switch unit determines to conduct a signal transmission path between the gate of the first output transistor and the first terminal of the capacitor unit or conduct a signal transmission path between the gate of the second output transistor and the first terminal of the capacitor unit according to a control signal. | 05-08-2014 |
20140118173 | METHOD OF REDUCING WATER-WAVE NOISE AND SYSTEM THEREOF - A method of reducing a water-wave noise for an analog to digital conversion includes performing sampling on an analog input signal; determining whether the analog input signal is interfered with by a periodic noise such that a water wave is generated; and executing one or both of the following steps when the analog input signal is interfered with by the periodic noise: adjusting a sampling frequency of the ADC, and adjusting a noise frequency of the periodic noise. | 05-01-2014 |
20140112425 | CONTROL METHOD FOR SELECTING FREQUENCY BAND AND RELATED CLOCK DATA RECOVERY DEVICE - A control method utilized in a clock data recovery device supporting a plurality of frequency bands, for controlling the clock data recovery device to select an operating frequency band from the plurality of frequency bands and to generate a recovery clock for generating retimed data, includes receiving a serial data stream with a data frequency; making each frequency band of the plurality of frequency bands correspond to a plurality of frequency band groups, wherein each frequency band group includes at least one frequency band and corresponds to different frequency ranges; selecting a frequency band group from the plurality of frequency band groups as a coarse-tuned frequency band group according to the data frequency and a locking voltage range; and selecting a frequency band from the plurality of frequency bands according to the data frequency, the locking voltage range and the coarse-tuned frequency band group for generating the recovery clock. | 04-24-2014 |
20140111494 | Self-detection Charge Sharing Module - A self-detection charge sharing module for a liquid crystal display device is disclosed. The self-detection charge sharing module includes at least one detecting unit, for detecting a plurality of input voltages of a plurality of operational amplifiers driving a plurality of data line sand a plurality of output voltage of the plurality of data line, to generate at least one detecting result, and at least one charge sharing unit, for conducting connection between at least one first data line and at least one second data line among the plurality of data line when the at least one detecting result indicates at least one corresponding first input voltage and at least one corresponding second input voltage among the plurality of input voltage have opposite voltage variation direction and vary toward each other. The at least one first input voltage and the at least one second input voltage maintain respective polarities. | 04-24-2014 |
20140097889 | INTERFACE CIRCUIT - An interface circuit includes a receiver, a first terminal resistor, a second terminal resistor, a common mode capacitor, a first switch, a second switch, and a common mode potential adjustment circuit. The receiver includes a first channel for receiving a first channel voltage, and a second channel for receiving a second channel voltage. The common mode capacitor provides a common mode potential. The first switch electrically connects the first terminal resistor to the common mode capacitor, and the second switch electrically connects the second terminal resistor to the common mode capacitor. The common mode potential adjustment circuit is coupled to the first switch, the second switch and the common mode capacitor, and adjusts the common mode potential according to the first channel voltage and the second channel voltage. | 04-10-2014 |
20140097871 | Latch comparator device and operation method thereof - A latch comparator device includes a differential input amplifier coupled between a first system voltage and a second system voltage and including a first differential output signal terminal and a second differential output signal terminal, a latch coupled to a third system voltage including a first latch signal terminal and a second latch signal terminal, a switch module including a first switch device and a second switch device, wherein the first switch device is coupled between the first differential output signal terminal and the second latch signal terminal and the second switch device is coupled between the second differential output signal terminal and the first latch signal terminal, and a third switch device is coupled between the latch and a fourth system voltage. | 04-10-2014 |
20140097802 | Charging System - The present invention discloses a charging system for charging a capacitor. The charge system includes at least one unit gain buffer, driven by a plurality of driving voltages, each unit gain buffer having a positive input terminal for receiving a target voltage and a negative input terminal coupled to an output terminal, a plurality of switches coupled between the plurality of driving voltages and the capacitor, and a switch control waveform generator, coupled to the plurality of switches, for switching on one of the for a specific driving voltage among the plurality of driving voltages to drive one of the at least one unit gain buffer to charge the capacitor. | 04-10-2014 |
20140092033 | TOUCH DETECTION METHOD FOR TOUCH PANEL - A touch detection method for a touch panel. The touch panel has a plurality of sensing nodes. Each sensing node has a baseline value. Each sensing node is sensed to obtain a scanned value. A touch event is detected according to a comparison with a finger-on threshold. When there is no touch event, the method detects whether or not an abnormal object has entered the sensing node. When entered, the method judges whether a difference count between the scanned value and baseline value is larger than a calibration level. When the difference count is larger, then the scanned value is used to update the baseline value. When no abnormal object, then the method judges whether the difference count is larger than a noise threshold. When the difference count is larger, then the scanned value is used to update the baseline value. The calibration level is smaller than finger-on threshold. | 04-03-2014 |
20140085010 | OPERATIONAL AMPLIFIER MODULE AND METHOD FOR ENHANCING DRIVING CAPABILITY OF OPERATIONAL AMPLIFIER CIRCUIT - An operational amplifier module including an operational amplifier circuit and a comparator circuit is provided. The operational amplifier circuit includes an input stage circuit and an output stage circuit. The input stage circuit receives an input signal. The output stage circuit is coupled to the input stage circuit for enhancing the driving capability of the input signal. The comparator circuit is coupled to the output stage circuit for receiving the input signal. The comparator circuit determines whether the input signal changes so as to output an enable control signal to the output stage circuit to enhance the driving capability of the operational amplifier circuit. Furthermore, a method for enhancing the driving capability of the foregoing operational amplifier circuit is also provided. | 03-27-2014 |
20140079124 | VIDEO ENCODING METHOD AND VIDEO ENCODING DEVICE - A video encoding method is provided, which includes: deciding a first search window of a first macroblock in a reference image, and deciding a second search window of a second macroblock in the reference image, wherein the first search window is at least partially overlapped with the second search window; reading the first search window and the second search window from a memory and executing a first encoding stage having motion estimation and binarization encoding; storing an encoding result of the first encoding stage in the memory; reading the encoding result from the memory and executing a second encoding stage. The second encoding stage has a context entropy coding, and an encoding order of the context entropy coding is different from that of the motion estimation, and the first encoding stage is executed in parallel with the second encoding stage. Accordingly, a bandwidth demand of the memory is decreased. | 03-20-2014 |
20140078189 | LOAD DRIVING APPARATUS AND GRAYSCALE VOLTAGE GENERATING CIRCUIT - A load driving apparatus for driving a plurality of loads is provided. The load driving apparatus includes an output stage module, a load driving module, and an output stage selection module. The output stage module includes a plurality of output stages. Each of the output stages is coupled to a corresponding one of the loads. The load driving module is coupled to the output stage module and outputs a driving signal to drive one of the loads through the output stage module. The output stage selection module is coupled between the output stage module and the load driving module and selects one of the output stages in the output stage module, so that the load driving module drives the load which is coupled to the selected output stage through the selected output stage. Furthermore, a grayscale voltage generating circuit including the foregoing load driving apparatus is also provided. | 03-20-2014 |
20140078133 | PANEL DISPLAY APPARATUS - A panel display apparatus is provided which includes a timing controller, a plurality of source drivers, a first data path, and a second data path. The first data path and the second data path are both coupled between the timing controller and the source drivers. The timing controller transmits multiple display data to the source drivers via the first data path. When the source drivers detect an event (e.g. error event), the source drivers transmit at least one event data (e.g. notification data) to the timing controller via the second data path to notify the timing controller that event correction (e.g. error correction) is needed. | 03-20-2014 |
20140078129 | LOAD DRIVING APPARATUS AND DRIVING METHOD THEREOF - A load driving apparatus including a first driving unit, a second driving unit, and a circuit switch module is disclosed. The first and the second driving unit are respectively disposed at a first driving channel and a second driving channel and respectively output a first driving signal and a second driving signal for driving a first load and a second load during a channel output period. The circuit switch module is coupled between the first and the second driving channel and includes a plurality of signal transmitting paths. During a data loading period and a charge sharing period, the circuit switch module turns on all the signal transmitting paths, so that a charge sharing effect between the first load and the second load is achieved during the charge sharing period and accordingly the power consumption is reduced. Additionally, a load driving method of the load driving apparatus is disclosed. | 03-20-2014 |
20140077880 | OPERATIONAL AMPLIFIER MODULE AND METHOD FOR INCREASING SLEW RATE OF OPERATIONAL AMPLIFIER CIRCUIT - An operational amplifier module including an operational amplifier circuit, a rate-increasing circuit and an overdriving circuit is provided. The operational amplifier switches an input voltage to an output voltage and outputs the switched output voltage. The rate-increasing circuit receives the input voltage and the output voltage and increases the rate of switching the input voltage to the output voltage according to the difference between the input voltage and the output voltage. The overdriving circuit provides an overdriving voltage to the rate-increasing circuit and the operational amplifier circuit during an overdriving period according to a selection signal. The level of the overdriving voltage is higher or lower than the levels of the input voltage and the output voltage. Furthermore, a method for increasing the slew rate of the operational amplifier circuit is provided. | 03-20-2014 |
20140077861 | INTERFACE CIRCUIT - An interface circuit includes a receiver, a first terminal resistor, a second terminal resistor, a switch circuit and a switch control circuit. The receiver has a first channel and a second channel. The first channel receives a first channel voltage, and the second channel receives a second channel voltage. According to the first channel voltage and the second channel voltage, the switch control circuit controls the switch circuit to discharge a common mode capacitor before the first terminal resistor or the second terminal resistor couple to the common mode capacitor. | 03-20-2014 |
20140077789 | Bandgap Reference Circuit and Self-Referenced Regulator - The present invention discloses a bandgap reference circuit. The bandgap reference circuit includes an operational transconductance amplifier, and a reference generation circuit. The operational transconductance amplifier includes a self-biased operational transconductance amplifier, for utilizing an area difference between bipolar junction transistors of an input pair to generate a first positive temperature coefficient current to bias the input pair, and generating a positive temperature coefficient control voltage and a negative temperature coefficient control voltage; and a feedback voltage amplifier, for amplifying the negative temperature coefficient control voltage, and outputting a reference voltage to the input pair for feedback, to generate a first negative temperature coefficient current. The reference generation circuit generates a summation voltage or a summation current according to the positive temperature coefficient control voltage and the negative temperature coefficient control voltage. | 03-20-2014 |
20140071106 | SOURCE DRIVER AND METHOD FOR UPDATING A GAMMA CURVE - A source driver includes a first drive channel circuit, a voltage controller and a first programmable voltage buffer unit. The first drive channel circuit receives a first pixel data from the timing controller via a data bus, converts the first pixel data to a first drive voltage according to a first reference voltage group, and drives a display panel by the first drive voltage. The voltage controller receives a voltage command from the timing controller, generates and changes a first reference voltage configuration data according to the voltage command. The first programmable voltage buffer unit is coupled to the voltage controller and the first drive channel circuit, and receives the first reference voltage configuration data to generate and adjust the first reference voltage group for applying to the first drive channel circuit. Furthermore, a method for updating a new gamma curve by the source driver is also provided. | 03-13-2014 |
20140064340 | DIFFERENTIAL SIGNAL TRANSMISSION CIRCUIT - A differential signal transmission circuit including a pattern generator, a low voltage differential signal (LVDS) transmitter, a transition minimized differential signal (TMDS) receiver, and a comparator is provided. The pattern generator generates a plurality of test data. The LVDS transmitter is coupled to the pattern generator to receive the test data, and generates a test output signal according to the test data. The TMDS receiver receives a test input signal to output a plurality of decoded data. The comparator is coupled to the TMDS receiver to receive the decoded data and the pattern generator to receive the test data. The comparator compares the decoded data with the test data to output a test result of the TMDS receiver. | 03-06-2014 |
20140063184 | ENCODING METHOD AND ENCODING DEVICE FOR 3D VIDEO - An encoding method and an encoding device for 3D video are provided. The method includes the following. Pixel data of a first macro block in a first frame to be encoded is loaded, wherein the first frame belongs to a first view angle. Pixel data of a search window in a reference frame is loaded. A first motion estimation is executed according to the pixel data of the search window and the first macro block. Pixel data of a second macro block in a second frame to be encoded is loaded, wherein the second frame belongs to a second view angle different from the first view angle. A second motion estimation is executed according to the pixel data of the search window and the second macro block, thereby sharing the pixel data of the search window with the first motion estimation. Accordingly, the demand for a memory bandwidth is decreased. | 03-06-2014 |
20140063036 | Image Processing Method and Display System Thereof - An image processing method for an image processing device is disclosed. The image processing method includes receiving a setting value and a display data; calculating and converting a plurality of input pixel values of the display data according to the setting value, to obtain a plurality of target output pixel values of the display data; and adjusting a plurality of output pixel values of the display data to the plurality of target output pixel values in a plurality of frames gradually. | 03-06-2014 |
20140062922 | Touch Sensing Device and Touch Point Locating Method Thereof - A touch sensing device includes a plurality of first dimensional transparent electrodes and a plurality of second dimensional transparent electrodes, for forming a plurality of touch sensing points; one or more signal generators, for generating at least two orthogonal signals simultaneously coupled to at least two of the plurality of first dimensional transparent electrodes; one or more analog to digital converters for receiving a plurality of sensing signals from the plurality of second dimensional transparent electrodes; and one or more calculating units, for converting the plurality of sensing signals, to determine components of the at least two orthogonal signals in the plurality of sensing signals and locates at least one touch point on the plurality of touch sensing points. | 03-06-2014 |
20140062556 | MULTIPHASE CLOCK DIVIDER - A multiphase clock divider includes: a reference clock generator for generating a plurality of reference clocks; and at least one output clock generator including a first multiplexer for selecting to output a selected reference clock, a second multiplexer for selecting to output a first selected input clock, a third multiplexer for selecting to output a second selected input clock, a first flip-flop for outputting a first sampling clock according to the selected reference clock and the first selected input clock, a second flip-flop for outputting a second sampling clock according to the first sampling clock and the second selected input clock, and a fourth multiplexer for selecting to output the first sampling clock or the second sampling clock to generate an output clock. | 03-06-2014 |
20140050402 | METHOD OF AUTOMATICALLY DETECTING IMAGE FORMAT AND DEVICE THEREOF - A method of detecting image format includes dividing a single-frame image into a plurality of macro-blocks; calculating a correlation coefficient of a left-half image of the single-frame image and a right-half image of the single-frame image as a first global similarity; calculating a correlation coefficient of a top-half image of the single-frame image and a bottom-half image of the single-frame image as a second global similarity; calculating a portion difference of each macro-block; comparing the portion differences of the left-half image and the right-half image, for acquiring a first local similarity; comparing the portion differences of the top-half image and the bottom-half image, for acquiring a second local similarity; and detecting an image format of the single-frame image according to the first global similarity, the second global similarity, the first local similarity, the second local similarity, a first threshold and a second threshold. | 02-20-2014 |
20140049524 | METHOD FOR DISPLAYING ERROR RATES OF DATA CHANNELS OF DISPLAY - A method for displaying error rates of data channels of a display is provided. A timing controller of the display repeatedly transmits a test signal with a specific format to a first and a second source drivers of the display via a first and a second data channels of the display. During testing, a first number and a second number of times of the first source driver and the second source driver determining that the received test signal does not have the specific format are counted respectively. The first and the second source drivers control displaying of a first area and a second area of a panel of the display respectively according to the counted first and second numbers of times. Accordingly, the error rates of the data channels are presented on the panel of the display in a way that the error rates could be recognized more easily. | 02-20-2014 |
20140049460 | Backlight module and driving method thereof - A backlight module for a display device includes a determination module for generating a determination result according to a display content of the display device, a storage module for storing a plurality of on time duty signals, and an output module coupled to the determination module and the storage module for outputting one of the plurality of on time duty signals according to the determination result, to stably display the display content of the display device. | 02-20-2014 |
20140048935 | INTEGRATED CIRCUIT DEVICE - An integrated circuit device including a substrate, a first internal bonding pad, a second internal bonding pad, an external bonding pad and a bonding wire is provided. A first circuit and a second circuit are embedded in the substrate. The first internal bonding pad is disposed on a surface of the substrate and electrically coupled to the first circuit. The second internal bonding pad is disposed on the surface of the substrate and electrically coupled to the second circuit. The second internal bonding pad is electrically coupled to the first internal bonding pad via the bonding wire. The external bonding pad is electrically coupled to the first internal bonding pad. | 02-20-2014 |
20140043375 | DRIVING APPARATUS OF LIQUID CRYSTAL DISPLAY PANEL - A driving apparatus of a liquid crystal display (LCD) panel including a source driving unit and a channel selection unit is provided. The source driving unit is configured to drive the LCD panel and includes a plurality of data driving channels and at least one dummy driving channel. The channel selection unit is coupled to the source driving unit. The channel selection unit outputs driving signals of a part of the data driving channels and the at least one dummy driving channel to drive the LCD panel based on a testing result under a normal operation. Alternatively, the channel selection unit outputs the driving signals of the data driving channels to drive the LCD panel based on the testing result under the normal operation. | 02-13-2014 |
20140043313 | GAMMA-VOLTAGE GENERATOR - A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition. | 02-13-2014 |
20140043065 | DRIVER CIRCUIT, DRIVER ARCHITECTURE AND DRIVING METHOD THEREOF - A driver architecture includes multiple drivers connected in series. An (i) | 02-13-2014 |
20140042917 | LED DEVICE, LED DRIVING CIRCUIT AND METHOD - A light-emitting diode (LED) driving circuit includes an LED control circuit and a power stage circuit. The LED control circuit shifts an input pulse width modulation (PWM) signal toward a higher frequency direction in a frequency domain to generate an output PWM signal having a duty cycle substantially the same as a duty cycle of the input PWM signal. The power stage circuit outputs an LED driving current according to the output PWM signal. | 02-13-2014 |
20140042300 | IMAGE SENSOR AND COLUMN ANALOG-TO-DIGITAL CONVERTER THEREOF - An image sensor and a column analog-to-digital converter thereof are provided. The column analog-to-digital converter includes a counter providing a counter result, a ramp signal generator providing a ramp signal and a start signal, a sampling and comparing array, a first latch array, a second latch array, and an arithmetic unit. The sampling and comparing array outputs a plurality of brightness transformation signals according to the ramp signal, the start signal, and initial voltages and brightness voltages of a plurality of photosensitive pixels. The first and the second latch arrays latch the counter result in response to the brightness transformation signals and output a plurality of first brightness latch values during a first period and a plurality of second brightness latch values during a second period. The arithmetic unit calculates the brightness values of the photosensitive pixels according to the first brightness latch values and the second brightness latch values. | 02-13-2014 |
20140035816 | PORTABLE APPARATUS - A portable apparatus including a touch display panel, a communication interface and a processing unit is provided. The processing unit generates first reference coordinates according to at least one touch point on the touch display panel, operates according to the first reference coordinates indicating a reference position in a frame displayed by the touch display panel, and generates first frame data to the touch display panel. When the communication interface is coupled to an external display apparatus, the processing unit generates second reference coordinates according to at least one touch point on the touch display panel, operates according to the second reference coordinates indicating a reference position in a frame displayed by the external display apparatus, and generates and transmits second frame data to the external display apparatus via the communication interface. | 02-06-2014 |
20140029702 | Receiver - The present invention discloses a receiver capable of enhancing accuracy of signal reception. The receiver includes a variable termination resistance unit, coupled to at least one channel, for utilizing at least one termination resistance corresponding to the at least one channel to perform impedance matching, and a signal detection and termination resistance adjustment unit, for detecting at least one external calibration signal corresponding to the at least one channel from at least one external signal generator, and adjusting the at least one termination resistance. | 01-30-2014 |
20140029699 | Reception Circuit - The present invention discloses a reception circuit capable of enhancing accuracy of signal reception. The reception circuit includes a variable termination resistance unit, coupled to at least one channel, for utilizing at least one termination resistance corresponding to the at least one channel to perform impedance matching, a receiver, coupled to the at least one channel, for receiving a calibration signal to generate a digital calibration signal, and a data determination control unit, for comparing the digital calibration signal with a predefined data, to adjust the at least one termination resistance. | 01-30-2014 |
20140029669 | METHOD AND DEVICE FOR ENCODING VIDEO - A video encoding method for a video encoding device is provided. The method includes: obtaining a current image and a reference image, wherein the current image has a first block; obtaining motion vectors, wherein each of the motion vectors points to a reference block in the reference image; for each of the motion vectors, executing a filter calculation according to the pointed reference block and the first block to generate a first filter block, and calculating an difference value according to the pointed reference block and the corresponding first filter block. The method also includes: obtaining a minimum first difference value among the difference values, and obtaining a second filter block corresponding to the first difference value; encoding the first block according to the second filter block. Accordingly, the video quality and the compression ratio are increased. | 01-30-2014 |
20140028919 | 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, one or more 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 one or more 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 one or more line buffers having shorter data lengths to perform the vertical sharpening. | 01-30-2014 |
20140028795 | Image Processing Method and Image Displaying system - An image processing method is disclosed, which includes receiving an image data of an image frame and dividing the image data into first image data corresponding to a 2D image and second image data corresponding to a 3D image, converting the first image data into 2D image data according to a 2D image format and converting the second image data into 3D image data according to a 3D image format, and outputting the 2D image data and the 3D image data for displaying the image frame. | 01-30-2014 |
20140028399 | Signal Amplifier - A signal amplifier is disclosed. The signal amplifier includes a first transistor, including a first terminal, a second terminal and a control terminal; a resistor, including one terminal coupled to the first terminal of the first transistor, and another terminal coupled to the control terminal of the first transistor; and a capacitor, including one terminal coupled to the control terminal of the first transistor, and another terminal coupled to a specific voltage. | 01-30-2014 |
20140026009 | INTEGRATED CIRCUIT AND TEST SYSTEM THEREOF - An integrated circuit includes an input unit, a core processor and M output buffers, where M is a natural number greater than 1. The input unit has an output control pin, and receives an output control signal. The core processor is coupled to the input unit, and receives the output control signal to provide M output control signals. The M output buffers are coupled to the core processor, and are time-division multiplexing and enabled in response to the M output control signals, respectively, to output M output signals in M operation periods, respectively. | 01-23-2014 |
20140022233 | Driving Device for Liquid Crystal Display - A driving device of a liquid crystal display (LCD) utilized for preventing noises of a clock signal from causing error operation of a shift register is disclosed. The driving device includes a shift register, a reception terminal, a noise elimination circuit and a control signal generation circuit. The reception terminal is utilized for receiving a first clock signal. The noise elimination circuit is coupled to the reception terminal, and is utilized for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal. The control signal generation circuit is coupled to the reception terminal, the noise elimination circuit and the shift register, and is utilized for generating a first control signal and a second control signal to control the shift register. | 01-23-2014 |
20140015587 | LEVEL SHIFTING CIRCUIT WITH DYNAMIC CONTROL - A level shifting circuit with dynamic control includes a dynamic controller and a level shifter. The dynamic controller outputs a dynamic voltage and an output data signal. The level shifter under control by the dynamic controller includes an input signal receiver, an output signal generator, and a bias current controller, which are coupled in series between a ground voltage and a high level voltage. The input signal receiver receives the output data signal of the dynamic controller and the output signal generator produces a level-shifted data signal according to the input data signal. The bias current controller controlled by the dynamic voltage is at a first current-output capability when the level-shifted data signal is at a stable stage and at a second current-output capability when the level-shifted data signal is at an unstable stage. The first current-output capability is greater than the second current-output capability. | 01-16-2014 |
20140013190 | Iterative Decoding Device and Related Decoding Method - An iterative decoding device includes a decoder, a dual mode determination unit and a dual mode scaling unit. The decoder is utilized for receiving a set of soft information (SI) and iteratively decoding the set of SI and updating the set of SI accordingly to generate a set of updated SI. The dual mode determination unit is coupled to the decoder for generating a determination result according to the set of updated SI. The dual mode scaling unit is coupled to the dual mode determination unit and the decoder for scaling the set of updated SI according to the determination result to generate a set of scaled SI acting as an input of the decoder for next iteration. | 01-09-2014 |
20140009506 | DRIVING VOLTAGE GENERATOR AND DIGITAL TO ANALOG CONVERTER - A digital to analog converter is disclosed. The digital to analog converter includes a voltage selector, M voltage transmitting switches and a selecting signal decoder. The voltage selector receives N first voltages among a plurality of analog input voltages, and receives a plurality of digital selecting signals. The voltage selector selects at most one of the first voltages for providing to an output terminal. One terminals of the voltage transmitting switches receives M second voltages among the input voltages respectively, and the voltage transmitting switches are turned on or off according to M transmitting enable signals respectively. The selecting signal decoder generates the transmitting enable signals according to the selecting signals. Wherein, M and N are positive integers. | 01-09-2014 |
20140009483 | OVERDRIVE DEVICE - An overdrive device includes a training unit, an analysis unit and a Contrast adjustment unit. The training unit establishes a luminance difference look-up table (LUT) having an R | 01-09-2014 |
20140009436 | Sense Device and Capacitive Touch Control Display - A sense device for a capacitive touch control display is disclosed. The sense device includes a plurality of sense channels paralleled to each other, each of the sense channel including a first sense electrode having a first geometric figure for outputting a first sense signal, a second sense electrode having a second geometric figure for outputting a second sense signal, and a third sense electrode formed between the first sense electrode and the second sense electrode for outputting a third sense signal. An operation unit of the capacitive touch control display determines a plurality of touch positions according to the first sense signal, the second sense signal and the third sense signal. | 01-09-2014 |
20140009373 | Digital to Analog Converter and Source Driver Chip Thereof - A digital to analog converter for a source driver chip of a liquid crystal display device is disclosed. The digital to analog converter comprises an output terminal for outputting an output voltage, a plurality of receiving terminals for receiving a plurality of Gamma voltages, and a plurality of transmission paths comprising a plurality of first-type transistors coupled between the plurality of receiving terminals and the output terminal, respectively, for outputting one of the plurality of Gamma voltages as the output voltage according to a digital select signal; wherein a first transmission path corresponding to a first receiving terminal receiving a first Gamma voltage closest to a middle voltage among the plurality of Gamma voltages has lower on-resistance than other transmission paths among the plurality of transmission paths when a same source-to-gate voltage is applied. | 01-09-2014 |
20140009191 | OUTPUT BUFFER - An output buffer is disclosed. The output buffer includes an input-stage circuit, an output-stage circuit and a compensation circuit. The compensation circuit includes a capacitor, a first switch, a second switch, a third switch, and a fourth switch. The input-stage circuit receives a differential input signal and outputting a response signal. The output-stage circuit receives the response signal and outputting an output signal. The first switch controls a connection between the input-stage circuit and a first terminal of the capacitor. The second switch controls the connection between an output terminal of the compensation circuit and a second terminal of the capacitor. The third switch controls the connection between the input-stage circuit and the second-terminal of the capacitor. The forth switch controls the connection between the output terminal of the compensation circuit and the first terminal of the capacitor. | 01-09-2014 |
20140004725 | CHIP PACKAGE | 01-02-2014 |
20140002437 | POWER-SAVING DRIVING CIRCUIT AND POWER-SAVING DRIVING METHOD FOR FLAT PANEL DISPLAY | 01-02-2014 |
20140002435 | DATA DRIVER FOR ELECTROPHORETIC DISPLAY | 01-02-2014 |
20140002115 | CAPACITANCE SENSING METHOD | 01-02-2014 |
20130342265 | Charge Pump Device - A charge pump device is disclosed. The charge pump device includes a driving stage, for generating a driving signal corresponding to a driving capability; a charge pump circuit, for generating an output voltage according to the driving signal; a comparing circuit, comprising a first comparator for comparing the output voltage and a first reference voltage to generate a first comparing result; an overload detection circuit, for generating a detection result according to at least one of the first comparing result and the output voltage; and a driving capability control circuit, coupled between the overload detection circuit and the driving stage for controlling the driving capability corresponding to the driving signal according to the detection result. | 12-26-2013 |
20130342261 | BIAS AND LOAD CIRCUIT, FAST BIAS CIRCUIT AND METHOD - A fast bias circuit including a bias unit, a resistor, a first switch, and a detecting circuit is provided. The resistor has a first terminal coupled to the bias unit to receive a bias voltage, and a second terminal coupled to a bias terminal of a target circuit, wherein the bias terminal is coupled to an input signal. The first switch has a first terminal coupled to the first terminal of the resistor, a second terminal coupled to the second terminal of the resistor, and a control terminal coupled to the detecting circuit. During an initialisation period, the detecting circuit compares the bias voltage with a voltage at the bias terminal of the target circuit to obtain a comparison result, and controls the first switch according to the comparison result. Furthermore, a fast bias method and a bias and load circuit are also provided. | 12-26-2013 |
20130342109 | DRIVING CIRCUIT OF FLAT DISPLAY - A driving circuit of flat display including a charging circuit path, a discharging circuit path, and a detecting circuit is provided. The charging circuit path has first and second impedance states, wherein an impedance value of the first impedance state is smaller than that of the second impedance state. The discharging circuit path has third and fourth impedance states, wherein an impedance value of the third impedance state is smaller than that of the fourth impedance state. The detecting circuit detects whether the charging circuit path or the discharging circuit path is in an unstable first state or stable second state, controls the charging circuit path to the first impedance state or the discharging circuit path to the third impedance state in the first state, and controls the charging circuit path to the second impedance state or the discharging circuit path to the fourth impedance state in the second state. | 12-26-2013 |
20130337845 | Method and System for Selecting Base Stations to Position Mobile Device - A method for selecting a plurality of base stations to position a mobile device is provided. The method includes selecting a plurality of base station sets from the plurality of base stations, wherein each of the plurality of base station sets corresponds to a distance matrix, utilizing a first artificial neural network (ANN) unit to select a predefined number of the plurality of base station sets from the plurality of base station sets according to a plurality of distance matrixes corresponding to the plurality of base station sets; and utilizing a second ANN unit to position the mobile device according to the predefined number of the plurality of base station sets. | 12-19-2013 |
20130335117 | PRE-DRIVER AND DIFFERENTIAL SIGNAL TRANSMITTER USING THE SAME - A pre-driver and a differential signal transmitter using the same are provided. The pre-driver includes a latch circuit and a driver buffer. The latch circuit includes latch units, first inverters, and second inverters. The latch units are coupled in series between a pair of differential input terminals and a pair of differential latch terminals, receive a pair of differential input signals through the pair of differential input terminals, and latch the pair of differential input signals according to a clock signal to provide a pair of differential latch signals through the pair of differential latch terminals. The first and second inverters are respectively coupled in series between the pair of differential latch terminals and a pair of differential output terminals. The driver buffer is coupled to the pair of differential output terminals to receive a pair of differential output signals, and accordingly provides a pair of differential pre-driver output signals. | 12-19-2013 |
20130329581 | METHOD FOR POSITIONING MOBILE DEVICE IN WIRELESS WIDE AREA NETWORK - A method for positioning a mobile device in a wireless wide area network (WWAN) is provided. The method includes determining three measurement circles according to coordinates of three base stations and respectively calculating radiuses of the three measurement circles and distances between the three base stations. The method uses genetic algorithm to derive the best solution of a plurality of variables of an object function and estimates the position of the mobile device according to the best solution. Accordingly, non-line-of-sight (NLOS) errors are reduced, and more accurate positioning can be provided. | 12-12-2013 |
20130328631 | ADAPTIVE AMPLIFICATION CIRCUIT - An adaptive amplification circuit is provided, which includes an operational amplifier comprising a variable bias current source for providing a variable bias current for the operational amplifier, an equivalent circuit of the operational amplifier for receiving an input voltage and generating an output voltage according to the input voltage, and a bias control unit for generating a bias control signal to the variable bias current source according to the output voltage so as to adjust the variable bias current. | 12-12-2013 |
20130328534 | METHOD OF CONTROLLING A POWER CONVERTING DEVICE AND RELATED CIRCUIT - A method of controlling a power converting device which includes an inductor, a first switch coupled between an input end and a first node of the inductor, a second switch coupled between a second node of the inductor and ground, a third switch coupled between the first node of the inductor and ground and a fourth switch coupled between the second node of the inductor and an output end includes generating a pulse width modulation signal according to an output voltage of the output end, a switch current of the first switch and a ramp voltage; and controlling the first switch, the second switch, the third switch and the fourth switch according to the pulse width modulation signal and a clock signal. | 12-12-2013 |
20130327922 | IMAGE SENSOR WITH PIXEL-LEVEL AUTO LIGHT ATTENUATOR - An image sensing device for sensing pixel data of a plurality of pixels in an image includes a substrate; a plurality of light sensing units, each of the plurality of light sensing units being formed in the substrate and corresponding to one of the plurality of pixels; and a plurality of pixel-level auto-light attenuators, each of the plurality of pixel-level light attenuators corresponding to one of the plurality of light sensing units. Each pixel-level light attenuator includes a transparent dielectric layer, formed on the corresponding light sensing unit; and an electronic-chromic layer, formed on the transparent dielectric layer. | 12-12-2013 |
20130322515 | Data transmission System and Method - A data transmission system includes a transmission device having a first control module for generating a first control signal. A first transformation module is coupled to the first control module for transforming an original data into a transmission data according to the original data and the first control signal. A multiplexer is utilized for transmitting the transmission data according to the first control signal. A reception device includes a second control module for generating a second control signal, a reception module coupled to the second control module for receiving the transmission data, and a second transformation module for transforming the transmission data into the original data according to the second control signal, so as to transmit the original data to a display device. Thus, a transmission size of the transmission data is smaller than a transmission size of the original data. | 12-05-2013 |
20130321185 | MULTIPLYING ANALOG-TO-DIGITAL CONVERTER AND PIPELINE ANALOG-TO-DIGITAL CONVERTER USING THE SAME - A multiplying analog-to-digital converter is provided. A sample-and-hold unit samples an analog signal, to obtain a sample level. A analog-to-digital converting unit converts the analog signal to a digital signal. A digital-to-analog converting unit converts the digital signal to a recovered signal level. A operating unit provides an output signal according to the difference between the sample level and the recovered signal level. A comparator compares a level of the output signal with an upper threshold level and a lower threshold level, and accordingly provides an indicating signal, wherein the upper and lower threshold levels define a predetermined level range. When the indicating signal indicates that the level of the output signal is outside the predetermined level range, a controller shifts a value of the digital signal and accordingly provides an adjusted digital signal. | 12-05-2013 |
20130300774 | IMAGE PROCESSING METHOD - An image processing method is for subsampling a plurality of pixels of a frame. Related information about how subsample is applied to the pixels is generated. The pixels are subsampled so that respective numbers of bits of luminance components of the pixels are higher that respective numbers of bits of chroma components. | 11-14-2013 |
20130293528 | DISPLAY DRIVING APPARATUS AND METHOD FOR DRIVING DISPLAY PANEL - A display driving apparatus is disclosed. The display driving apparatus includes a display panel, a controller and a driving circuit. The controller receives a signal adjusting data and generates a driving controlling signal according to the signal adjusting data. The driving circuit separately provides a scanning driving signal and a data driving signal to a scanning line and a data line and adjusts at least one electrical property of the scanning driving signal and at least one electrical property of the data driving signal according to the driving controlling signal, wherein the signal adjusting data is generated according to an impedance value of the scanning line and the data line. | 11-07-2013 |
20130293520 | DISPLAY DRIVING DEVICE AND METHOD FOR DRIVING DISPLAY PANEL - A display driving device and a method for driving a display panel are provided. The display driving device includes the display panel and a display driver. The display panel includes a plurality of pixel units and a plurality of multiplexers. Each of the multiplexers is disposed with N data lines. The display driver provides a plurality of display data strings and a plurality of selection signals to the multiplexers to control the multiplexers according to the selection signals to receive and sequentially output the display data of the pixel units. Each of the display data strings forms two display data sets of different polarities in a same scan line, and the display data sets include the display data of at least one pixel unit. Thereby, the polarity inversion number of the display data and accordingly the power consumption can be reduced when the display driving device drives the pixel units. | 11-07-2013 |
20130292819 | CHIP-ON-FILM DEVICE - A chip-on-film device including a flexible circuit film having a wire, a passivation layer having a hole, an adhesive layer, a pad, an interconnection, and a bump is provided. A part of the adhesive layer is disposed in the hole. The pad is disposed under the passivation layer, and a part of the pad is disposed under the hole. A part of the interconnection is disposed under the passivation layer, and disposed at a side of the pad, wherein the interconnection does not touch the pad. A part of the bump is disposed on the adhesive layer. The bump is electrically connected to the pad via the adhesive layer. The bump is welded on the wire. A part of a first part of the bump overlaps the pad, and a second part of the bump extends to an outside of the pad and at least partially overlaps the interconnection. | 11-07-2013 |
20130286006 | IMAGE PROCESSING DEVICE - An image processing device includes an image processing unit, an over-driving unit, and an up-sampler. The image processing unit receives a full-resolution 3D input image and outputs a half-resolution 3D image to a memory. The over-driving unit is coupled to the image processing unit and the memory for over-driving a current half-resolution 3D image outputted from the image processing unit according to a previous half-resolution 3D image stored in the memory. The up-sampler is selectively coupled to the over-driving unit for up-sampling an over-driven half-resolution 3D image outputted from the over-driving unit to output a full-resolution 3D output image. | 10-31-2013 |
20130285756 | CIRCUIT OF INDUCTANCE/CAPACITANCE (LC) VOLTAGE-CONTROL OSCILLATOR - A circuit of inductance/capacitance (LC) voltage control oscillator (VCO) includes an LC VCO unit, a peak detector and a processing unit. The LC VCO unit receives a current control signal and outputs an oscillating voltage signal. The peak detector receives the oscillating voltage signal to obtain an averaged voltage value. The processing unit receives the averaged voltage value to accordingly output the current control signal and feedback to the LC VCO unit. The processing unit also detects whether or not the averaged voltage value has reached to a saturation state and a corresponding critical current. After the current control signal reaches to the critical current, the current control signal is set within a variance range near the critical current. | 10-31-2013 |
20130285704 | BRIDGE INTEGRATED CIRCUIT - A bridge integrated circuit adapted for being coupled between a gate driver and a tester is provided. The bridge integrated circuit comprises a plurality of first detection units and a logic unit. Each first detection unit determines whether a corresponding gate driving signal satisfies a first standard according to one of the gate driving signals provided by the gate driver and accordingly generates a first detection signal according to the determination result. The logic unit is coupled to the first detection units and generates a test result signal in response to the first detection signal provided by each first detection unit. The test result signal is adapted for the tester. | 10-31-2013 |
20130279590 | IMAGE PROCESSING CIRCUIT AND IMAGE PROCESSING METHOD - An image processing circuit and an image processing method are provided. The image processing circuit comprises a full search engine and a frame rate conversion (FRC) engine. The full search engine executes a full search to generate a sum of sum of absolute difference (SAD) distribution according to the reference image and the current image. The FRC engine analyzes a scene characteristic from the current image according to SAD distribution. The FRC engine adjusts at least one of the control parameters according to the scene characteristic. The FRC engine generates an interpolated image according to the reference image, the current image and the control parameters. | 10-24-2013 |
20130277091 | ELECTRODE STRUCTURE OF CAPACITIVE TOUCH PANEL - An electrode structure of a capacitive touch panel including a plurality of receiving electrodes and driving electrodes is provided. Each of the receiving electrodes has at least one opening. Each of the driving electrodes includes a main region and a plurality of elongation regions. The area of each driving electrode is larger than that of each receiving electrode. Parts of the receiving electrodes surround a corresponding one of the driving electrodes, and the elongation regions of the surrounded driving electrode correspondingly stretch into the openings of the receiving electrodes which surround the driving electrode. By using the foregoing electrode structure, the capacitive touch panel is not only capable of providing sensing signals with less noise but is also capable of increasing input signals to enhance the signal to noise ratio. | 10-24-2013 |
20130271420 | TOUCH CONTROL APPARATUS AND TOUCH DETECTION METHOD THEREOF - A touch detection method is used in a touch panel. The touch panel is capacitive touch panel integrated with a display panel. The method includes at least obtaining at least one control signal carrying synchronous information from the display panel. The control signal is used to control the display panel to display an image. The method also includes analyzing the control signal to obtain an interference time period, at which the touch panel is possibly interfered, and generating a trigger signal. A driving voltage signal and a sensing period of the touch panel are controlled according to the trigger signal, so that the sensing period is not overlapped with the interference time period. | 10-17-2013 |
20130266030 | Device and Method for Transmitting and Receiving Data - A data transmission device includes a data division unit for receiving an original transmission data and dividing the original transmission data into a plurality of division data; a data generation unit for generating a plurality of packet data according to the plurality of division data and a plurality of clock data, wherein each of the clock data is a multi-bit data; and a data output unit for outputting the plurality of packet data to a data reception device; where each of the packet data includes a division data and a clock data, each of the packet data corresponds to a packet data period, and the division data corresponds to a division data period of the packet data period and the clock data corresponds to a clock period of the packet data period. | 10-10-2013 |