Realtek Semiconductor Corporation Patent applications |
Patent application number | Title | Published |
20160080516 | MULTIMEDIA GENERATING METHOD AND RELATED COMPUTER PROGRAM PRODUCT - A multimedia generating method for use in a target electronic device includes: communicating the target electronic device with a central relay server (CRS) via internet to conduct an identity authentication; receiving an activation command from the CRS via internet; after receiving the activation command, activating a websocket server module in the target electronic device to establish one or more network sockets between the target electronic device and other electronic devices, so that the target electronic device and other electronic devices communicate control parameters via the websocket server module; generating one or more corresponding images according to control parameters received from other electronic devices; and displaying the one or more images on a display of the target electronic device. | 03-17-2016 |
20150162960 | MIMO WIRELESS COMMUNICATION METHOD AND SYSTEM - The present invention discloses a MIMO wireless communication method functioning through a main wireless communication device and comprising: acquiring a transmission opportunity; issuing an distributed MIMO initiation frame including a transmission duration, a number Ns1 of transmission spatial stream(s), and a number Nr1 of reception spatial streams which an intended receiver is operable to process; receiving an initial portion which an attendant wireless communication device sends in response to the distributed MIMO initiation frame, or issuing the initial portion after reaching a time limit; and transmitting a distributed MIMO packet to the intended receiver while the attendant wireless communication device is allowed to transmit another distributed MIMO packet to the intended receiver or another intended receiver concurrently, wherein the sum of the number Ns1 and a number Ns2 of transmission spatial stream(s) of the attendant wireless communication device is equal to or less than the number Nr1. | 06-11-2015 |
20150016579 | CLOCK AND DATA RECOVERY DEVICE, SAMPLER AND SAMPLING METHOD THEREOF - A clock and data recovery device, a sampler and a sampling method thereof are provided. The sampler includes a phase generation circuit and a first edge sampling circuit electrically connected with the phase generation circuit. The phase generation circuit is configured to generate a plurality of first phases which have different phase values. The first edge sampling circuit is configured to sample a plurality of first edge values of a plurality of bits of a data signal according to the first phases so that the clock and data recovery device determines a clock of the data signal according to the first edge values. | 01-15-2015 |
20140328381 | Electronic device, communication method, audio device and amplifier device using pulse density modulation for communication - The present invention discloses an electronic device using pulse density modulation for communication, comprising: a pulse density modulation interface; a first circuit to output a clock signal and a data signal through the pulse density modulation interface; and a second circuit to receive the clock and data signals and thereby determine whether the level change times of the data signal reach a predetermined threshold while the clock signal remains unchanged, so as to verify whether the clock and data signals satisfy a start protocol. In an embodiment of the present invention, the above-mentioned predetermined threshold is equal to or more than three. | 11-06-2014 |
20140297899 | UNIVERSAL SERIAL BUS NETWORK INTERFACE CONTROLLER AND OPERATION MODE SWITCHING METHOD - A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point. | 10-02-2014 |
20140289393 | NETWORK APPARATUS AND CONNECTION DETECTING METHOD THEREOF - A network apparatus and a connection detecting method thereof are disclosed. The network apparatus receives a network connection request which determines a wireless network connection between a USB network controller and a wireless network access point. The network apparatus determines a network connection frequency band of the wireless network connection according to the network connection request, and switches a data transmission mode of the USB network controller from a first USB operation mode to a second USB operation mode after determining that an operation frequency of the first USB operation mode conflicts with the network connection frequency band. | 09-25-2014 |
20140286323 | WIRELESS NETWORK SYSTEM AND CONNECTING METHOD THEREOF - A wireless network system and a connecting method thereof are provided. The wireless network system includes a Wi-Fi apparatus and a communication apparatus. The Wi-Fi apparatus provides a Service Set Identifier (SSID). The SSID includes a first identifier value and a second identifier value, and the second identifier value is derived from the first identifier value by a hash function. After searching the SSID of the Wi-Fi apparatus, the communication apparatus determines that a value derived from the first identifier value of the SSID by the hash function is equal to the second identifier value, and then establishes a Wi-Fi authenticating connection with the Wi-Fi apparatus according to a connection password. The Wi-Fi apparatus establishes a data transmission connection with the communication apparatus after determining that the communication apparatus is legal according to the Wi-Fi authenticating connection. | 09-25-2014 |
20140269974 | Signal level decision device and method - The present invention discloses a signal level decision device to determine the level of a source signal. Said source signal comprises a plurality of source messages along a time axis; each source message corresponds to one of a plurality of normal levels; and each normal level is equivalent to at least one of a plurality of extension levels. The signal decision device comprises: a storage circuit to store the level information of the normal level(s) and the equivalent extension level(s) thereof in connection with some or all of the source messages; a transition parameter calculation circuit to calculate a plurality of transition parameters of the normal level and its equivalent extension level(s) in connection with each of the source messages according to the level information; and a decision circuit to determine the level of each of the source messages according to the plurality of transition parameters. | 09-18-2014 |
20140241405 | TRANSCEIVER AND COMMUNICATION METHOD OF DIGITAL SUBSCRIBER LINE - The present invention discloses a transceiver of digital subscriber line (DSL) which supports a variety of DSL systems, comprising: a transmission circuit for receiving an output signal and generating a first DSL transmission signal or a second DSL transmission signal according to the output signal under the control of a transmission selection parameter; a hybrid circuit for generating a line transmission signal according to the first or second DSL transmission signal and generating a DSL reception signal according to a line reception signal; and a reception circuit for generating a first DSL reception signal or a second DSL reception signal according to the DSL reception signal, and then outputting one of the first and second DSL reception signals as an input signal according to a reception selection parameter. | 08-28-2014 |
20140197972 | SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER AND CONVERSION TIME CALIBRATION METHOD THEREOF - A successive approximation register analog-to-digital converter and a conversion time calibration method thereof are provided. The successive approximation register analog-to-digital converter includes a conversion circuit and a conversion time calibration apparatus. The conversion circuit has a conversion time under a process, voltage, and temperature (PVT) variation. The conversion time calibration apparatus is configured to detect a conversion time condition and adjust the conversion time of the conversion circuit according to the conversion time condition. | 07-17-2014 |
20140192222 | White balance adjusting method with scene detection and device thereof - A white balance adjusting method with scene detection comprises: receiving source image data corresponding to a plurality of sensing units; generating an initial white balance gain according to the source image data; generating an image parameter corresponding to a plurality of parameter elements according to the source image data; determining whether a preset condition is satisfied according to the image parameter to generate a decision result; determining whether the source image data are associated with any of built-in scenes according to the decision result in which the built-in scenes include a first scene in connection with a first-scene adjustment rule; and if the source image data are associated with the first scene, adjusting the initial white balance gain or processing the source image data according to the first-scene adjustment rule to thereby obtain a scenic white balance gain and adjust the source image data with it. | 07-10-2014 |
20140177698 | Signal transmission device performing compensation by filtering characteristics and method thereof, and signal reception device offsetting compensation and method thereof - The present invention discloses a signal transmission device performing compensation by filtering characteristics for generating a transmission signal according to a pulse amplitude modulation signal. The signal transmission device comprises: a filtering characteristic compensation circuit for generating a compensation signal according to the pulse amplitude modulation signal and a filtering function; a filter coupled to the filtering characteristic compensation circuit for generating a filtered signal through filtering the compensation signal according to the aforementioned filtering function; and an analog front-end circuit for generating the transmission signal according to the filtered signal. | 06-26-2014 |
20140169195 | Wireless transmission rate adjustment method - The present invention discloses a wireless transmission rate adjustment method for adjusting the wireless transmission rate of a wireless transmission device. The method comprises: having the wireless transmission device enter a try state from a normal state; under the try state, transmitting a plurality of test packets according to a first modulation and coding scheme (MCS) and determining whether the transmission is successful in accordance with a predetermined condition; if the transmission is successful with the first MCS, returning to the normal state and transmitting data with the first MCS; if the transmission is unsuccessful with the first MCS, staying in the try state and transmitting a plurality of test packets according to a second MCS, and then determining whether the transmission is successful in accordance with the predetermined condition; if the transmission is successful with the second MCS, returning to the normal state and transmitting data with the second MCS; and if the transmission is failed with the second MCS, returning to the normal state and transmitting data at an original transmission rate or with the first MCS. | 06-19-2014 |
20140132716 | THREE-DIMENSION IMAGE FORMAT CONVERTER AND THREE-DIMENSION IMAGE FORMAT CONVERSION METHOD THEREOF - A three-dimension (3D) image format converter and a 3D image format conversion method thereof are provided. The 3D image format converter includes a memory, an input circuit, a control circuit, and an output circuit. The input circuit receives a first 3D image signal. The control circuit determines a first permutation way and a second permutation way according to the first 3D image signal belonging to one of a frame transmission mode and a line transmission mode, writes the first three-dimension image signal into the memory in the first permutation way and reads out the first three-dimension image signal from the memory in the second permutation way to generate a second 3D image signal belonging to the other of the frame transmission mode and the line transmission mode. The output circuit outputs the second three-dimension image signal. | 05-15-2014 |
20140126444 | Energy efficient network communication device and method - The present invention discloses an energy efficient network communication device comprising: a media-access-controller for outputting a transmission-end low power idle (LPI) indication and receiving a reception-end LPI indication; a media-independent-interface for generating a transmission-end LPI signal according to the transmission-end LPI indication, and generating the reception-end LPI indication according to a reception-end LPI signal; and a physical-layer-circuit, coupled to several pairs of transmission lines, for converting the transmission-end LPI signal into a transmission signal to send it to a reception end for requesting an LPI mode and receiving a reception signal from the reception end to convert it into the reception-end LPI signal. Said physical-layer-circuit uses some of the several pairs of transmission lines for transmission and reception when keeping the other pairs of transmission lines unused to save power; furthermore, the physical-layer-circuit can enter the LPI mode from an idle mode for additional power saving. | 05-08-2014 |
20140082221 | INTERFACE ADAPTER AND INTERFACE ADAPTING METHOD THEREOF - An interface adapter and an interface adapting method thereof are provided. The interface adapter includes a body, a network interface and a card interface. The network interface is disposed on the body, and is configured to connect with a wired network for receiving a network signal from the wired network. The card interface is disposed on the body and connects with the network interface electrically, and is configured to connect with a card slot of a host, and to transmit the network signal to the host via the card slot so that the host transfers the network signal to a network controller of the host via an adapter. | 03-20-2014 |
20140071169 | Image processing method, image output processing method, and image reception processing method - The present invention discloses an image processing method comprising: using an image output device to generate a scale-down image; using the image output device to generate a plurality of divided images according to the scale-down image; using the image output device to encode the plurality of divided images to thereby generate a plurality of encoded images; having the image output device output the plurality of encoded images into an image reception device through a transmission interface; using the image reception device to decode the plurality of encoded images to thereby recover the plurality of divided images; using the image reception device to generate a combined image according to the plurality of divided images; and using the image reception device to generate a display image according to the combined image, in which the size of the display image is larger than the size of the combined image. | 03-13-2014 |
20140035049 | SEMICONDUCTOR DEVICE AND FABRICATING METHOD THEREOF - A semiconductor device and a fabricating method thereof are provided. The semiconductor device is formed on a substrate and includes a first first-type metal-oxide-semiconductor field effect transistor (MOSFET) and a second first-type MOSFET. The first first-type MOSFET includes a first gate structure, a first source area and a first drain area on the substrate. The second first-type MOSFET includes a second gate structure, a second source area, and a second drain area on the substrate. A first pocket implant process is applied to the first first-type MOSFET via a first photomask, while a second pocket implant process is applied to the second first-type MOSFET via a second photomask. The first and second gate structures are facing different directions. | 02-06-2014 |
20130316660 | WIRELESS APPARATUS AND INTERFERENCE DETERMINATION METHOD THEREOF - A wireless apparatus and an interference determination method thereof are provided. The wireless apparatus determines that the wireless apparatus operates in a first bandwidth mode, and counts a first clear channel assessment (CCA) number associated with a primary channel, a second CCA number associated with a secondary channel, an entire CCA number associated with either the primary channel or the secondary channel, and the false alarm number according to at least one received radio frequency (RF) signal. Afterwards, the wireless apparatus determines that the second CCA number exceeds the summation of the first CCA number and bias number to determine that it is in an interference state, and determines that the interference state belongs to either the first interference type or second interference type according to the radio of the entire CCA number to the FA number. | 11-28-2013 |
20130315421 | COMBO-JACK DETECTING CIRCUIT - A combo-jack detecting circuit for used in an audio CODEC is provided. The combo-jack detecting circuit comprises a low pass filter, a detecting unit and a switch unit. Without coupling capacitor between an audio apparatus and audio codec, the output direct current voltage of the audio apparatus can be provided by the low pass filter. The switch unit is configured to switch selectively for outputting two voltage signals to the low pass filter sequentially. The low pass filter provides two direct current signals so that the detecting unit determines a jack type of the sounding signal apparatus accordingly. By means of proper design, input buffers in the audio codec can transform a common mode voltage of the audio apparatus into a common mode voltage of the audio codec. | 11-28-2013 |
20130300471 | PHASE-LOCKED LOOP CIRCUIT - A phase-locked loop (PLL) circuit is provided. The PLL circuit includes a phase frequency detector (PFD), a first charge pump (CP), a second CP, a first loop component set, a second loop component set, a voltage control oscillator (VCO) and a frequency divider. The first CP and the second CP are coupled to the PFD. The first loop component set is coupled between the first CP and the VCO. The second loop component set is coupled between the second CP and the VCO. The frequency divider is coupled between the PFD and the VCO. The first loop component set generates an offset current to adjust the working range of the first CP and the second CP. The second loop component set generates an offset current and a DC adjustment voltage to control the control voltage outputted to the VCO. | 11-14-2013 |
20130288614 | TRANSCEIVER AND VOLTAGE CALIBRATION METHOD THEREOF - A transceiver and a voltage calibration method thereof are provided. The transceiver includes a transmitting circuit, a receiving circuit, and a processing circuit. The transmitting circuit generates a transmitting voltage. The receiving circuit, which is electrically connected to the transmitting circuit, receives a reference voltage and the transmitting voltage to generate a reference signal, and a measurement signal respectively. The processing circuit, which is electrically connected to the transmitting circuit and receiving circuit, calibrates the transmitting voltage according to the reference signal and the measurement signal. | 10-31-2013 |
20130229161 | MODULATING DETERMINATION APPARATUS, MODULATING DETERMINATION METHOD, AND POWER SUPPLY CIRCUIT THEREOF - A modulating determination apparatus, a modulating determination method, and a power supply circuit thereof are provided. The modulating determination apparatus is electrically connected to an examined circuit and includes a driver circuit and a comparison circuit. The driver circuit provides an impulse signal to a first end of the examined circuit. The comparison circuit is coupled to the first end of the examined circuit to obtain a first detected electric value of the first end. The comparison circuit calculates a difference value between the first detected electric value and a second detected electric value. The comparison circuit produces a comparison result by comparing the difference value with a threshold value. The comparison result indicates whether the examined circuit comprises a passive component, which is used to decide either a first modulating scheme or a second modulating scheme for modulating the power supply circuit to supply an output power. | 09-05-2013 |
20130169465 | SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER AND CONVERSION METHOD THEREOF - A successive approximation analog to digital converter and a conversion method thereof are provided. The successive approximation analog to digital converter includes a sample circuit, a conversion circuit, and a filtering control circuit. The sample circuit is configured to sample an analog voltage from an analog signal. The conversion circuit is configured to convert the analog voltage into a digital voltage. The filtering control circuit is configured to transmit a filtering control signal to the sample circuit according to the digital voltage. The sample circuit further samples a next analog voltage from the analog signal and adjusts the next analog voltage into an adjusted analog voltage according to the filtering control signal. The conversion circuit further converts the adjusted analog voltage into a next digital voltage, wherein the next digital voltage is a filtered digital voltage. | 07-04-2013 |
20120249186 | SINGLE-TO-DIFFERENTIAL CONVERSION CIRCUIT - A single-to-differential conversion circuit includes a first transistor, a second transistor, and a transforming unit. Each of the first and second transistors has first, second and third terminals. The trans forming unit has first, second, and third induction elements. The first induction element has a first inductive terminal coupled to the second terminal of the first transistor, and a second inductive terminal coupled to a voltage source. The second induction element has a first inductive terminal to be coupled to the voltage source, and a second inductive terminal coupled to the second terminal of the second transistor. The third induction element has a first inductive terminal coupled to the first terminals of the first and second transistors, and a second inductive terminal coupled to ground. The third induction element electrically couples to the first and the second induction elements according to first and second coupling parameters, respectively. | 10-04-2012 |
20110013561 | Apparatus And Method For Adjusting Transmission Power Of Communication System - The present invention provides a method for adjusting transmission power of a communication system having a first terminal and a second terminal. In accordance with a preferred embodiment, the method comprises steps of: (a) repeatedly transmitting a detecting packet from the first terminal to the second terminal by sequentially using one of a variety of transmission powers; (b) receiving a responding packet from the second terminal, wherein the responding packet corresponds to the one of the variety of transmission powers; and (c) choosing at least one from the variety of the transmission powers for transmitting at least a data packet to the second terminal therewith based on the responding packet from the second terminal. | 01-20-2011 |
20100191992 | WIRELESS COMMUNICATION APPARATUS AND POWER MANAGEMENT METHOD FOR THE SAME - A wireless communication apparatus is adapted for communication between a host and a communication device. The wireless communication apparatus includes a host transmission interface adapted to be coupled to the host, a host transmission interface controller coupled to the host transmission interface, a wireless transmission interface adapted for communicating with the communication device so as to receive packet data therefrom, a wireless transmission interface controller coupled to the wireless transmission interface, and a processor coupled between the host transmission interface controller and the wireless transmission interface controller. The processor is operable to control a power state of the host transmission interface controller to enter a power consuming mode selected in accordance with a traffic volume. | 07-29-2010 |
20090290646 | VIDEO SYSTEM AND SCALER - A video system includes a decoder and a scaler. The decoder tracks a video signal, generates a synchronization signal and a frequency offset signal, decodes the video signal, and outputs a decoded signal in accordance with the synchronization signal. The scaler generates a frequency control signal in accordance with the frequency drift signal, generates an output clock signal in accordance with the frequency control signal, generates a scaled signal in accordance with the decoded signal, and outputs a display signal in accordance with the scaled signal and the output clock signal. | 11-26-2009 |
20090184749 | HIGH-RESOLUTION DIGITALLY CONTROLLED TUNING CIRCUIT ELEMENTS - A tuning circuit element for a tuning circuit. The tuning circuit element may include sub-elements for generating circuit values depending on logical values of digital control input signals. The tuning circuit element may be implemented with varactors, current sources, and other components or circuits. The tuning circuit element may be configured to have fine tuning resolution that is not necessarily limited by minimum feature size of a given fabrication process technology. | 07-23-2009 |