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| Number | Title | Issue Date |
| 7443871 | Method and system for managing a jitter buffer Methods and systems for dynamically adjusting the length of delay before playback as a function of the amount of transmission jitter is disclosed, whereby a target error rate is received, error rates at different delays are tracked and current delay is adjusted as a... | 10/28/2008 |
| 7379653 | Audio-video synchronization for digital systems The audio-video synchronization process ensures continuity of displayed AV data. To initialize the process, a transport processor determines whether an occupancy criterion of a buffer storing received audio and video frames has been met. If the criterion is met, the... | 05/27/2008 |
| 7375765 | False-positive detection prevention circuit for preventing false-positive detection of signals on which abnormal signals are superimposed The false-positive detection prevention circuit inputs a multiplexed signal-sliced binary determination value, has an identification code detection circuit for detecting the identification code of the binary determination value and evaluating the identification code... | 05/20/2008 |
| 7355608 | Method for priority transmission and display of key areas of image data A method and an apparatus for selecting, prioritizing, saving, and receiving image data are disclosed. Portions of an image can be selected and the selected portions assigned priorities using preferred embodiments of the present invention. The prioritized image port... | 04/08/2008 |
| 7336722 | Method and apparatus for puncturing code symbols in a communications system Techniques for puncturing symbols in a communications system. S symbols are received for a frame having a capacity of N symbols, with S being greater than N. P symbols need to be punctured so that remaining symbols fit into the frame. A number of puncture distances,... | 02/26/2008 |
| 7307665 | Method and system for generating reference signals with improved correlation characteristics for accurate time of arrival or position determination The present invention provides a method and system for generating reference signals that, when correlated with synchronization code signals or other components of broadcast TV signals, yield minimal sidelobes, produce large main peaks, and have minimal couplings to ... | 12/11/2007 |
| 7148932 | Communication system in digital television Disclosed is a digital communication system. A transmission system includes an error correction encoder part carrying out an error correction encoding for additional data inputted through a first path, a multiplexer (MUX) part, a control part, a channel coding part ... | 12/12/2006 |
| 7134064 | Error detecting method and apparatus An error detecting method and apparatus may be provided for a moving image transmitting system. An error detection code may be generated for each data block of a frame. The generated error detection code may be inserted into a byte alignment code of the data block. ... | 11/07/2006 |
| 7123658 | System and method for creating multi-priority streams A system and method for creating multi-priority streams of compressed video data. Included is a method for assigning priority to streams of compressed video data, comprising the steps of: determining a relative importance of each macroblock in a video frame based on... | 10/17/2006 |
| 7123305 | Image processing apparatus and method, and recording medium Viewing of a program is enabled at optimum image quality. A correspondence table of an image signal processing parameter and a combination of TMCC information and transmission errors is stored in a RAM. A CPU reads out an image signal processing parameter correspond... | 10/17/2006 |
| 7089332 | Method for transferring selected display output from a computer to a portable computer over a wireless communication link A handheld computing device is used to copy files from the screen of a fixed computer. The display of the handheld device is linked to that of the underlying computer and file and directory icons together with their underlying files are copied to the handheld device... | 08/08/2006 |
| 7080312 | Data transformation for explicit transmission of control information The present invention provides a system and method for explicitly transmitting a block attribute in the data of a block. In one embodiment, a current block of data is randomized in accordance with an ID value from the current block and from at least one temporally a... | 07/18/2006 |
| 7047282 | Method using video buffers for receiving and transferring selected display output from a computer to a portable computer over a wireless network A handheld computing device is used to copy files from the screen of a fixed computer. The display of the handheld device is linked to that of the underlying computer and file and directory icons together with their underlying files are copied to the handheld device... | 05/16/2006 |
| 7043671 | System and method for transmitting audio or video data using multiple levels of protection A data transmission and distribution system that includes a series of payloads, where each of the payloads is formed from bits of audio or video information, and where different levels of protection are applied to different sets of bits in each payload. The system d... | 05/09/2006 |
| 7020828 | Trellis encoder with rate 1/4 and 1/2 for a backward compatible robust encoding ATSC DTV transmission system Robust and existing standard bit streams are mixed in a backward compatible manner for forming enhanced modes for better reception of ATSC DTV signals. This is achieved by an enhanced coding block provided at the input of a conventional ATSC trellis encoder unit. Th... | 03/28/2006 |
| 7010038 | VSB transmission system for processing supplemental transmission data A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the su... | 03/07/2006 |
| 6999673 | Moving picture decoding method, moving picture decoding apparatus and program recording medium A moving picture decoding apparatus is provided which reduces the deterioration in image quality due to errors by a concealment processing for decoded image data, thereby improving the image quality of decoded images, without causing high deterioration in image qual... | 02/14/2006 |
| 6980569 | Apparatus and method for optimizing packet length in ToL networks A system and method for optimizing packet length in a telephony-over-LAN (ToL) network (101). A threshold of packet length as a fraction of jitter buffer size is established. When call setup is undertaken, endpoints such as client terminals (102A, 1... | 12/27/2005 |
| 6965649 | Digital subscriber line communicating system A digital subscriber line communicating system having a central office and a remote terminal connected through a telephone line, the transmitting side comprising a sliding window transmitting unit for transmitting DMT symbols according to the sliding window through ... | 11/15/2005 |
| 6963999 | Source coding to provide for robust error recovery during transmission losses A method and system are described for a multiple level shuffling process of a signal that provides for robust error recovery. A signal is defined as multiple levels wherein each level comprises a frame, a plurality of pixels, and a plurality of bits. In one embodime... | 11/08/2005 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6937289 | Method and system for downloading and storing interactive device content using the horizontal overscan portion of a video signal A method and system for decoding and storing encoded control data delivered via the horizontal overscan area of a video signal. An interactive device such as an interactive toy performs behavior defined by control data that can be encoded into a video signal that ca... | 08/30/2005 |
| 6909467 | Broadcast text data sampling apparatus and broadcast text data sampling method A broadcast text data sampling apparatus comprises an A/D converter for sampling a broadcast text signal supplied from the outside, with a sampling clock of a predetermined frequency, to convert the text signal into digital data; a binarization circuit for convertin... | 06/21/2005 |
| 6888530 | Enhanced method of encoding progressive video sequences when employing interlaced codecs In one embodiment, a method comprises an act of separating a progressive scanned frame into a plurality of fields. The plurality of fields includes at least a first field being a first portion of the progressive scanned frame and a second field being a second portio... | 05/03/2005 |
| 6839055 | Video data error detection A system for providing an error indication of video data received from a first link of a data interface between a computer system video controller and a display system and for providing the error indication to the video controller from the display system via a secon... | 01/04/2005 |
| 6831703 | Method and circuit for the storage of digital data and television set implementing said storage method A method for storing pages of a teletext service, with at least one page being received by a storage circuit of a television receiver, is provided. The storage circuit includes a data memory for storing the at least one received page. The method includes extracting ... | 12/14/2004 |
| 6831702 | Method of and apparatus for identifying a signal transmitting source A method of and apparatus for identifying a signal transmitting source detects a switching of a signal on the reception side thereby to prevent a transmission error from occurring when a signal is switched. The apparatus for identifying a signal transmitting source ... | 12/14/2004 |
| 6771821 | High-speed image transfer system This invention is directed to the transferring of information in two-dimensional form. The form may be an image or may be printed word. The information is converted to a digital bit map. The bit map information is compressed by any compression technique (JPEG, MPEG,... | 08/03/2004 |
| 6754824 | Modulated message authentication system and method A telecommunications system and method is disclosed for implementing a message authentication code (MAC) for transmitted digital information signals. Digital information signals typically include an error detecting code, such as a Cyclic Redundancy Check (CRC) code,... | 06/22/2004 |
| 6727955 | Communication system for providing a transport entity with mutually related objects A communication system in which a transmitter transmits cyclically a plurality of mutually related objects to a terminal. If the objects are used in the terminal there is no mechanism to establish whether the objects are consistent, e.g. that they are originated at ... | 04/27/2004 |
| 6710811 | Data processing device The invention relates to a data processing device for recovering digital data which is received in an analogue transmitted signal. According to the invention, the received signal is digitized and a threshold is determined in a threshold estimator. The interference i... | 03/23/2004 |
| 6633982 | Method and process for managing ultra secure electronic distribution of digital movies to commercial exhibitors A method and system for managing electronic distribution of digital movies to commercial exhibitors at warp speed is made ultra secure by utilizing synchronized and concurrent digitally bifurcated data transmissions via both satellite up-links/downlinks a... | 10/14/2003 |
| 6633683 | Apparatus and method for adaptively reducing noise in a noisy input image signal The basic configuration of Single local Adaptive Window Spatial Noise Reducer (SAW-SNR) is based on a preliminary de-noising low-pass filter followed by homogenous region segmentation to the considered pixel in a given local window. The configuration is c... | 10/14/2003 |
| 6407680 | Distributed on-demand media transcoding system and method A system and method for the on-demand transcoding of media content from a source type to a destination type is provided, wherein the system includes a plurality of transcoders for transcoding from a plurality of source types to a plurality of destination ... | 06/18/2002 |
| 6356309 | Video coding device and video transmission system using the same, quantization control method and average throughput calculation method used therein Video data coded in a coding device 12 is temporarily stored in a temporary buffer 13 before transmitted to a transmission buffer 171. A frame dropping/quantization control device 16 cancels the video data in the temporary buffer 13 if the amount of infor... | 03/12/2002 |
| 6339450 | Error resilient transcoding for video over wireless channels A method and system for maintaining the quality of video transported over wireless channels uses a transcoder to modify and maintain the optical resilience of an encoded bitstream. The transcoder increases the spatial resilience by reducing the number of ... | 01/15/2002 |
| 6289297 | Method for reconstructing a video frame received from a video source over a communication channel An adaptive region-based, multi-scale, motion compensated video compression algorithm design for transmission over hostile communication channels. The algorithm is embodied in a video encoder that extracts spatial information from video frames to create v... | 09/11/2001 |
| 6252631 | Apparatus and method for encoding high quality digital data in video Apparatus for encoding a continuous (i.e. QAM) signal into a (non-continuous) video signal is achieved in a manner to obviate noise problems normally introduced by breaks in the (video) signal due to horizontal and vertical pulses, low fidelity circuits, ... | 06/26/2001 |
| 6175391 | Digital TV receiver Digital TV receiver including an antenna, a tuner for synchronizing one of a plurality of digital TV signals received at the antenna, the digital TV signal having data streams, and each data stream having a plurality of symbols, a comparing unit for compa... | 01/16/2001 |
| 6141448 | Low-complexity error-resilient coder using a block-based standard Disclosed is an error-correction method and apparatus for transmission of block-based coding standard compliant video data, such as H.263, MPEG or JPEG. A picture is divided into slices wherein each slice of the picture is coded into a group of blocks (GO... | 10/31/2000 |
