Patent application number | Description | Published |
20080199153 | Coding and Decoding Method and Device for Improving Video Error Concealment - A coding and decoding method and device for improving video error concealment is disclosed in the present invention. The coding method includes the steps of: obtaining a macro block smoothness information of a macro block in a video stream, which indicates whether the boundaries of the macro block are smooth or not; and coding the macro block smoothness information into a coded video stream. The decoding method includes the steps of: determining whether the boundaries of a lost macro block are smooth or not according to the macro block smoothness information of the lost macro block in a video stream; smoothing the displacing macro block for the lost macro block if the boundaries are smooth. The smoothed displacing macro block is more similar to the original macro block, thereby the whole image is more natural with a small coding cost but a highly improved image quality; further, the calculation amount thereof is small, and the cost to realize it is relatively low. | 08-21-2008 |
20080232477 | Method and Device For Coding and Decoding of Video Error Resilience - The invention provides a coding/decoding method and device for video error resilience, the coding method includes the step of: acquiring a macroblock-based object ID information (S | 09-25-2008 |
20080260046 | Coding/Decoding Method and Apparatus For Improviding Video Error Concealment - A coding/decoding method and an apparatus for improving video error concealment are provided, wherein the coding method comprises obtaining the relevant information of a mostly matching area for an area, wherein both the mostly matching area and the area are located in the same picture; and coding the relevant information of the mostly matching area into a coded video stream comprising the area. With the error concealment of the present invention, only several bits are required to be added when coding, whereby the whole picture appears more natural during decoding and error concealment, and the picture quality is also significantly enhanced. | 10-23-2008 |
20080298460 | Method and Apparatus for Spatial Scalable Compression of a Video Stream - The invention provides a method of spatial scalable compression of video stream. The video stream is a stream having a resolution higher than a specified resolution. Firstly, the video stream is down-sampled and encoded to obtain a base stream; then the base stream is decoded and up-sampled to obtain a reconstructed stream; the reconstructed stream is subtracted from the video stream to obtain a residual stream; and next, a gain value is obtained according to an expected bitrate; in the end, the gain value is multiplied by the residual stream, the result obtained thereby is encoded to obtain an enhancement stream. The invention can not only determine the gain value according to the video stream itself, but also adjust the gain value dynamically according to external application environments, thus enabling the bitrate of the enhancement stream to meet the actual demand always. | 12-04-2008 |
20080301538 | Method and Apparatus for Detecting Video Data Errors - The present invention provides a method and apparatus for detecting video data errors, said video data including a plurality of successive frame image data, said method comprising the steps of acquiring the processing sequence information of two frame image data in said video data, said two frame image data being immediately adjacent in the processing sequence, one after the other, determining the processing sequence information difference between two frame image data, comparing said information difference with a reference value and judging, based on said comparison result, whether there is a frame image data miss between said two frame image data. The method and apparatus provided by the invention can, not only judge whether there is a frame image data missing between the two immediate adjacent frames, but also determine the amount of the missing frame image data and performs a restoring and correcting process. | 12-04-2008 |
20090024666 | METHOD AND APPARATUS FOR GENERATING METADATA - The present invention discloses a method for generating metadata, said metadata being associated with a content, the method comprising the steps of obtaining the uncompressed digital signal of said content; determining the feature data of said uncompressed digital signal, said feature data being associated with the features that can be physiologically sensed in the analog signal that corresponds to said uncompressed digital signal; and creating metadata that are associated with the physiological emotion according to said feature data. Therefore, a user can directly obtain metadata reflecting the physiological emotion. | 01-22-2009 |
20090185542 | Method And Apparatus For Controlling Energy Expanding Of Sensor Network Nodes - Present invention is to provide a method and apparatus for controlling energy expanding of sensor network nodes, wherein the method comprises steps of: acquiring energy information, said energy information being indicative of an energy status of a node in the network; and adjusting at least one data transmission parameter accordingly based on the energy information. With present invention, on the premise that the communication capacity and power energy of sensor nodes are limited in a wireless sensor network, it is capable of efficiently utilize the network resource, save the power consumption of sensor node, and prolong the whole life of sensor network. | 07-23-2009 |
20090190377 | Systems and Methods for DC to DC Conversion with Current Mode Control - In one embodiment the present invention includes a DC to DC converter device which includes an electronic circuit. The electronic circuit comprises a first comparator, a second comparator, a first switch, a first latch, and a current sensor. The inductor current includes a peak current value and a valley current value. The first comparator detects the peak current value and resets the first latch which opens the first switch. The second comparator detects the valley current value and sets the first latch which closes the first switch. The current sensor is coupled to sense an inductor current flowing through an output load, and is coupled to provide a sense voltage to the first and second comparators. In this manner, the electronic circuit provides DC to DC conversion with current control. | 07-30-2009 |
20090195190 | Systems and Methods for Powering a Light Emitting Diode Lamp - In one embodiment, the present invention includes an electronic circuit for providing a power current to an LED lamp. The electronic circuit comprises a logic drive circuit, a VCO, a power switch, and a first current sensor. The VCO is coupled to provide a first logic control signal to the logic drive circuit. The power switch has a first terminal and second terminal coupled to deliver the power current to the LED lamp and a control terminal coupled to receive a power control signal from the logic drive circuit. The first current sensor is coupled to sense a peak current passing through the power switch and coupled to provide a second logic control signal to the logic drive circuit. | 08-06-2009 |
20100040150 | METHOD AND APPARATUS FOR ENCODING VIDEO DATA STREAM - The invention discloses a method and apparatus for encoding video data stream. In accordance with the method provided by the invention, firstly, compares the difference between each data block of the unit to be encoded and a reference data block having the corresponding address in a reference unit; and, determines whether the difference corresponding to each data block complies with a preset reference value. If it is less than the preset reference value, then the macro-block is indicated for obtaining the video data of the macro-block by decoding on the basis of data of reference data macro-block. Otherwise the macro-block is encoded. With the invention, it can be determined whether the macro-block should be encoded without motion prediction, motion compensation and/or DCT, etc., which greatly simplifies the procedure of determining whether the macro-block should be encoded and saves the system resources. | 02-18-2010 |
20100067335 | METHOD AND APPARATUS FOR ERROR CORRECTION OF OPTICAL DISC DATA - A method and device for error correction of data in an optical disc is provided in the present invention. The method comprises the following steps: obtaining the description information about the error data read from an optical disc; sending request information for error correction, based on the description information, to a network server, where the network server stores the backup data corresponding to the data on the optical disc and the request information for error correction comprises the request for downloading the backup data corresponding to the error data; and replacing the error data with the downloaded backup data, so as to play the optical disc correspondingly. The method and device provided in the present invention can repair data error of various kinds and provide a playing effect of equal quality with the expected playing effect when data is not damaged. | 03-18-2010 |
20100119209 | METHOD AND APPARATUS FOR ENABLING AN APPLICATION TO COOPERATE WITH RUNNING OF A PROGRAM - The present invention provides a method and apparatus for enabling an application to cooperate with the running of a program. According to the invention, the playing control information of a program and the linking information of an application corresponding to the program are edited into a program playing control file. Through executing said playing control file, guided by the linking information and based on the running control information of the application, the application can download, run or stop to run cooperating with the playing of the optical disc program. The Solution of combining an application and a program into a playing control file will effectively cause the downloading and running of the application to cooperate with the playing of the program so as to ensure normal realization of corresponding functions. | 05-13-2010 |
20100138723 | METHOD AND APPARATUS FOR CORRECTING DATA ERRORS AND METHOD AND APPRATUS FOR PLAYING BACK A DISC - The present invention provides an error correction method and apparatus, and also an optical disc playback method and apparatus. The error correction method in the present invention is used to perform error correction on data read from an optical disc, comprising: obtaining the error detection information of a block corresponding to the read data; determining data error type in a data stream unit derived from the block according the error detection information; according to the data error type and predefined reference error type, judging whether to reserve the data stream unit for optical disc playback. By using the error detection information of the block which is decarded by using the existing technologies, the player can perform further error correction to try to avoid data errors which may produce interruption during optical disc playback. | 06-03-2010 |
20110080150 | Systems and Methods for DC to DC Conversion with Current Mode Control - In one embodiment the present invention includes a DC to DC converter device which includes an electronic circuit. The electronic circuit comprises a first comparator, a second comparator, a first switch, a first latch, and a current sensor. The inductor current includes a peak current value and a valley current value. The first comparator detects the peak current value and resets the first latch which opens the first switch. The second comparator detects the valley current value and sets the first latch which closes the first switch. The current sensor is coupled to sense an inductor current flowing through an output load, and is coupled to provide a sense voltage to the first and second comparators. In this manner, the electronic circuit provides DC to DC conversion with current control. | 04-07-2011 |
20110273552 | METHOD AND APPARATUS FOR ACCESSING EXERCISE WHILE WATCHING TV - The present invention provides a complete solution for accessing an exercise or training program quickly and easily (e.g. with just one or a few button pushes on a remote control) at anytime while watching TV. | 11-10-2011 |
20120001683 | VOLTAGE LEVEL SHIFT CIRCUITS AND METHODS - In one embodiment, the present invention includes a charge pump circuit. The charge pump circuit comprises a plurality of terminals, a plurality of switches for selectively coupling the plurality of terminals, and a control circuit. A first input terminal receives a first reference voltage and a second input terminal receives a second reference voltage. First, second, third, and fourth flying capacitor terminals and the first and second input terminals are selectively coupled together in different configurations. The control circuit selects the switches to actuate according to a cycling of at least three phases of configuration. The cycling shifts the first and second reference voltages to provide dual power supply rails. | 01-05-2012 |
20120092519 | GESTURE RECOGNITION USING CHROMA-KEYING - A method and system for analyzing an object is provided in the present invention. The system comprises: a background arranged behind an object, wherein the color of the background is allowed to be selected from a set of colors; a first unit for setting a given color for the background so that the given color is different from the color of the object; a second unit for taking a picture including the object and the background; and a third unit for detecting at least one feature relating to the object according to the picture taken by said second unit. In the system, the color of the background is allowed to be set so as to be different from the color of the object. In this way, it is easy to distinguish the object part from the background part in the taken picture. This results in stable recognition for different objects, especially objects of different colors. | 04-19-2012 |
20120113701 | INVERTER CURRENT MEASUREMENT USING A SHUNT RESISTOR - A method for determining each current output of a three-phase inverter ( | 05-10-2012 |
20120297223 | METHOD AND DEVICE FOR PROVIDING LOW POWER CONSUMPTION SERVICES AND COMMUNICATION SYSTEM - A method and a device for providing low power consumption services and a communication system are provided in the embodiments of the present disclosure. The method includes: receiving a low power consumption request sent by a terminal; when determining that the low power consumption request is supported, sending a first configuration parameter indicating that the low power consumption request is supported to a base station, so that the base station performs low power consumption communication with the terminal according to the first configuration parameter; and sending acknowledgement information indicating that the low power consumption request is supported to the terminal, in which the acknowledgement information carries a second configuration parameter, so that the terminal performs low power consumption communication with the base station according to the second configuration parameter. In this way, a network side provides services with different power consumption for different terminals according to requirements of terminals. | 11-22-2012 |
20130076333 | Voltage Level Shift Circuits And Methods - In one embodiment, the present invention includes a charge pump circuit. The charge pump circuit comprises a plurality of terminals, a plurality of switches for selectively coupling the plurality of terminals, and a control circuit. A first input terminal receives a first reference voltage and a second input terminal receives a second reference voltage. First, second, third, and fourth flying capacitor terminals and the first and second input terminals are selectively coupled together in different configurations. The control circuit selects the switches to actuate according to a cycling of at least three phases of configuration. The cycling shifts the first and second reference voltages to provide dual power supply rails. | 03-28-2013 |
20130317095 | Use of Artemisine Derivatives and Pharmaceutical Salts Thereof - The invention demonstrates the application of an artemisinin derivative and its pharmaceutical salt. The artemisinin derivatives diarteether amine and its pharmaceutical salt inhibit the proliferation of leukemic cells, block the cell cycle of leukemic cells and induce the apoptosis of leukemic cells. Artemisinin derivatives of the present invention and its pharmaceutical salt can be used for the preparation of anti-leukemia medicines, especially for treatment of acute leukemia and, what's more, for the treatment of acute myeloid leukemia. | 11-28-2013 |