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Pulse Or Digital Communications > Bandwidth Reduction Or Expansion Bandwidth Reduction Or ExpansionBandwidth Reduction Or Expansion patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/15/07 - 20070263716 - Digital video broadcasting method for updating firmware image of digital set-top box or digital television The present invention provides a digital video broadcasting method for updating a firmware image of a device, comprising providing at least two versions of a firmware image, extracting at least one firmware image difference according to the difference between said at least two versions of a firmware image, transmitting a ... 10/25/07 - 20070248157 - Method and apparatus to encode and decode multi-channel audio signals An encoder (100) for encoding a multi-channel audio signal comprises a prediction processor (101) which generates two residual signals for two signal components of the multi-channel signal by linear prediction which is associated with psycho-acoustic prediction filters. A rotation processor (105) rotates the combined signal of the two residual signals ... 10/18/07 - 20070242744 - System and method of packet recovery using partial recovery codes A coding system and method employs a Partial Reed Solomon (PRS) code profile of order s having an s-partition on a set of parity symbols and a (s+1)-partition on a set of message symbols. In other aspects, an adaptive forward error correction scheme keeps block length and transmission rate fixed, ... 10/04/07 - 20070230562 - Spectrally constrained impulse shortening filter for a discrete multi-tone receiver A channel in a multiple carrier communication system is equalized by computing a target spectral response, shortening the impulse response of the channel so that a significant part of an energy of the impulse response is confined to a region that is shorter than a target length and filtering the ... 08/16/07 - 20070189379 - Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current ... 08/16/07 - 20070189378 - Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current ... 08/16/07 - 20070189377 - Data processing apparatus A method and apparatus for modifying a compression encoded video sequence representing a video image are described. The compression encoded video sequence includes a group of pictures comprising an intra-encoded picture and at least one inter-encoded picture, the inter-encoded picture comprising a plurality of image blocks. At least one of ... 08/09/07 - 20070183492 - Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current ... 08/09/07 - 20070183491 - Context adaptive binary arithmetic decoding for high definition video An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to present a video signal and macroblock data in response to decoding one or more bins on a binary signal. The second circuit may be configured to, in parallel (i) generate the binary signal ... 07/19/07 - 20070165714 - Video encoding/decoding method and apparatus A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference ... 07/19/07 - 20070165713 - Method and device for encoding blocks of values The present invention relates to a method of encoding blocks of values, e.g. DCT blocks, generated in accordance with an image compression scheme. The values are expressed as a set of bit planes, each bit plane comprising, for the values, all bits with a specific significance. In each bit plane ... 07/19/07 - 20070165712 - Video processing circuit and method of video processing Video stream processing, such as processing that includes MPEG decoding an subsequent post-processing involves using signal processing circuitry (102, 106) to execute a first and a second video stream processing function. The first video stream processing function produces frame data of successive video frames in a temporally ordered output sequence ... 07/12/07 - 20070160132 - Video encoding/decoding method and apparatus A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference ... 07/12/07 - 20070160131 - Video encoding/decoding method and apparatus A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference ... 07/12/07 - 20070160130 - Video encoding/decoding method and apparatus A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference ... 07/12/07 - 20070160129 - Video decoding apparatus and video decoding method According to one embodiment, a video decoding apparatus decoding a video stream selectively generates one of an intra prediction image and an inter prediction image based on an encoding mode of a decoding object from the video stream and decoded images thereof, generates a residual decoded image based on a ... 07/12/07 - 20070160128 - Method and apparatus for shot detection in video streaming The invention comprises devices and methods for processing multimedia data. Such methods can include obtaining at least one metric indicative of a difference for a selected frame and adjacent frames in a plurality of video frames, the metric comprising bi-directional motion information and luminance difference information, determining a shot event ... 07/12/07 - 20070160127 - Bandwidth adaptive stream selection An apparatus and corresponding method are provided for selecting one of several alternate input streams for transmission, the method including determining bandwidth requirements for each of the alternate input streams, measuring bandwidth currently available for transmission, and selecting for transmission one of the alternate input streams that has the highest ... 07/12/07 - 20070160126 - System and method for improved scalability support in mpeg-2 systems A heterogeneous layered video decoding system and associated method is disclosed that provides for flexible and cost effective scalability through the use of generic decoders (e.g., MPEG-2/4/AVC) at each layer instead of decoders specifically designed for scalable systems. In one embodiment, additional signaling information (220) embodied as a parameter list ... 06/14/07 - 20070133674 - Device for coding, method for coding, system for decoding, method for decoding video data The invention relates to a device and a method for coding video data. The device comprising means for coding each picture in slices of pictures, each slice being coded independently of the other slices. According to the invention, the device comprises means for inserting into the data stream at least ... 06/14/07 - 20070133673 - High definition multimedia interface transcoding system According to one embodiment, a system including a decoder and a high definition multimedia interface (HDMI) whose copy protection protocol has been modified to allow the received uncompressed digital audio-video content from the decoder to be re-encoded and recorded. ... 05/24/07 - 20070116110 - Optimized video compression using hashing function A video redirection system redirects an incoming video stream to a remote console. The video redirection system samples the video stream to generate a currently sampled frame comprising a plurality of tiles, and calculates a current hash value for each of the tiles. The video redirection system compresses the tile ... 05/10/07 - 20070104267 - Method for handling content information A method for handling content information has the steps of carrying out the method using at least one device in a network, carrying out a video content analysis to provide content information for video data, and accumulating the content information in different hierarchal levels; and also a device for handling ... 03/08/07 - 20070053429 - Color video codec method and system In one aspect of a preferred embodiment, the present invention comprises a system for video compression comprising a video preprocessor; a predictor configured to receive video data from the preprocessor; and an encoder configured to communicate with the predictor. Preferably, the preprocessor comprises a colorspace converter, a frame activity detector, ... 03/08/07 - 20070053428 - Managed degradation of a video stream A system and a method for simultaneous transmission of multiple media streams in a fixed bandwidth network are disclosed herein. The system is comprised of a central gateway media server and a plurality of client receiver units. The input media streams arrive from an external source and are then transmitted ... 03/08/07 - 20070053427 - Method and device for selecting a transcoding method from a set of transcoding methods The invention relates to a method for selecting a method from a set of methods of transcoding video data, said data being liable to be transmitted between at least two communication apparatuses (2, 4) via a communication network (3), wherein said selection method comprises the following steps: determining (S605, S606 ... 03/08/07 - 20070053426 - Method and apparatus for enhancing performance of entropy coding, video coding method and apparatus using the method An apparatus for enhancing the performance of entropy coding in a multilayer-based codec and an entropy coding method includes obtaining a distribution of a second coefficient included in an area of a base layer corresponding to the block, selecting a lookup table which is appropriate to the obtained distribution among ... 03/08/07 - 20070053425 - Variable length codes for scalable video coding A method for coding spatial and quality enhancement information in scalable video coding using variable length codes. Conventional systems have been capable of using variable length codes only with nonscalable video coding. In the present invention, the coded block pattern for each block of information, significance passes, and refinement passes ... 03/08/07 - 20070053424 - System and method for compressing video data and alpha channel data using a single stream A system and method provides video data and its corresponding alpha channel data using a single stream or file, compressed using the same format and decompression algorithm for each of the video data and the alpha channel data. ... 03/08/07 - 20070053423 - System and method for decompressing video data and alpha channel data using a single stream A system and method receives video data and its corresponding alpha channel data using a single stream or file, each of the video data and alpha channel data in the same format, and decompresses each set of data using a single decompression algorithm. ... 01/04/07 - 20070002945 - Intra-coding apparatus and method An intra-coding apparatus and method for coding an image including a plurality of macroblocks are provided. The intra-coding apparatus includes an intra-frame prediction unit determining an intra prediction mode using border pixels on borders between a current macroblock to be coded and adjacent macroblocks and generating a predicted macroblock corresponding ... 12/28/06 - 20060291554 - Image processing apparatus An image processing apparatus receives a base video stream and an enhancement video stream that contains information for optionally improving a quality of an output stream derived from the base video stream. An adder (126) forms an output stream by adding image information values derived for a location in an ... 12/21/06 - 20060285586 - Methods and systems for achieving transition effects with mpeg-encoded picture content Methods and systems of using a single MPEG frame to produce a fade effect that extends over more than one frame period. An example system includes a computer-based device that includes a receiver that receives an MPEG formatted image from a source system over a network, a component that modifies ... 12/14/06 - 20060280241 - Uncompressed to compressed digital file converter device for use with compressed digital file storage and playback devices A compressed digital signal converter device. The converter is a device that converts an analog or digital source signal to a compressed digital signal. It preferably includes memory for storing the compressed digital signal for transferring it to a compressed digital file storage device, such as a MP3 or a ... 11/02/06 - 20060245489 - Coding apparatus, coding method, and codebook A coding apparatus (500) includes: a fourth layer codebook that shows N number of (N is a natural number) codes indicating uniquely respective N integers that increment one by one; and first to third layer codebooks that show M number of (M is a natural number that satisfies M<N) codes ... 10/12/06 - 20060227862 - Method and system for counting moving objects in a digital video stream A method and system are provided for counting moving objects in a digital video stream. In contrast to known computationally-expensive methods, areas of motion are determined by threshold subtracting a current video frame from a short term average video scene. An object box surrounding an object is determined by threshold ... 09/07/06 - 20060198436 - Bandwidth reduction by one half A method for transmitting information on electromagnetic waves that requires less bandwidth than other common modes. The information is divided into two parts in the manner of the Weaver method of single sideband generation. These two parts each have one-half the bandwidth of the original information. The two parts are ... 08/31/06 - 20060193378 - Processing digital data prior to compression A method includes receiving an original string of bits where each of the bits represents one of two possible logic levels. The string of bits also carries information. A new string is formed, based on the original string, which contains all of the information of the original string by using ... 08/10/06 - 20060176950 - Apparatus for assisting video compression in a computer system One embodiment of the present invention provides an apparatus that facilitates compression of video data in a computer system by performing the time-consuming task of computing the difference between successive frames of video data. Thus, one embodiment of the present invention can be characterized as an apparatus for compressing video ... 07/13/06 - 20060153287 - Enhancing video images depending on prior image enhancements A video stream containing encoded frame-based video information includes a first frame and a second frame. The encoding of the second frame depends on the encoding of the first frame. The encoding includes motion vectors indicating differences in positions between regions of the second frame and corresponding regions of the ... 06/15/06 - 20060126716 - Digital remodulation A method (30) of digital remodulation of a received or source signal using a digital audio radio (116) having a first digital radio frequency path (119 to 116) or using a first digital radio frequency comprises the steps of re-encoding (38) the received signal to provide a re-encoded digital signal, ... 06/08/06 - 20060120447 - Backward-compatible long training sequences for wireless communication networks A network device for generating an expanded long training sequence with a minimal peak-to-average ratio. The network device includes a signal generating circuit for generating the expanded long training sequence. The network device also includes an Inverse Fourier Transform for processing the expanded long training sequence from the signal generating ... 06/01/06 - 20060114985 - Parallel video encoder with whole picture deblocking and/or whole picture compressed as a single slice An apparatus comprising (i) a segmentor circuit, (ii) a plurality of encoders and (iii) a multiplexer circuit. The segmentor circuit may be configured to segment a picture into a plurality of strips. Each of the plurality of encoders may be configured (i) to encode respective strips of the plurality of ... 06/01/06 - 20060114984 - Method and apparatus for increasing coherent integration length while receiving a positioning signal A receiving method and apparatus for increasing coherent integration length while receiving a positioning signal from transmitters such as GPS satellites. In order to compensate for frequency drifts that may occur in the positioning signal, a hypothesis is made as to the frequency drift, which is inserted into the receiving ... 03/16/06 - 20060056504 - Method for estimating communication conditions affecting an uwb wireless link The present invention relates to a method for transmitting data by means of at least one pulse sequence carried by a radio signal, in the course of which a power value PWk representative of an amount of power carried by said pulse sequence is computed. The method according to the ... 01/12/06 - 20060008000 - Fully scalable 3-d overcomplete wavelet video coding using adaptive motion compensated temporal filtering A method and device for coding video where a video signal is spatially decomposed into at least two signals of different frequency sub-bands, an individualized motion compensated temporal filtering scheme is applied to each sub-band signal adaptively according to signal contents, and texture coding is applied to each of the ... 12/22/05 - 20050281328 - Frame-accurate seamless splicing of information streams A method and apparatus for generating universal splice point adapters, where during a splicing operation an “out-point splicing adapter” is used to transition from an exit stream, while an “in-point splicing adapter” is used to transition to an entry stream. ... 12/08/05 - 20050271139 - System and method for huffman shaping in a data communication system In a communication system, Huffman coding techniques are used to obtain shaping gains for an improvement in data transmission rates. More particularly, a novel method of Huffman shaping is described that achieves a shaping gain of greater than 1 dB. The shaping gain results in a higher data rate transmission ... 11/03/05 - 20050243909 - Multicarrier transmission method and apparatus A multicarrier transmission apparatus that achieves both power efficiency in a high-frequency amplifier and quality of transmission signal in a radio transmission system in next-generation mobile communications that supports high speed data packet transmission. In the apparatus, adaptive peak limiter 400 performs adaptive hard limit processing on baseband signals of ... 08/18/05 - 20050180500 - Video encoding A method for use in encoding video data, including generating metric values for the video data based on a metric function and respective encoding parameters. At least one of the encoding parameters is selected on the basis of a desired quantity of encoded video data and a predetermined relationship between ... 08/11/05 - 20050175082 - Mpeg field data-driven display A system and method that support display of video fields using related data encoded in data structures. Each data structure is associated with one video field and contains all the information associated with the display of the video field. The data structure is encoded with the video field that is ... 08/04/05 - 20050169364 - System and method for incremental and continuous data compression A data compression system and method for that is capable of detecting and eliminating repeated phrases of variable length within a window of virtually unlimited size. ... 08/04/05 - 20050169363 - Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length Data throughput rate in a power line communications (“PLC”) system is controlled by generating PLC carrier signals in accordance with a PLC signal frame structure containing payload symbols where the payload symbol length is selected based on at least one of a PLC system channel quality and node configuration data. ... 07/28/05 - 20050163210 - Usage of digital input/output card as mpeg transport streamer Described herein is the usage of a digital input/output card as an MPEG transport stream. A transport stream feeder for verifying a video decoder is presented. The transport stream feeder comprises a digital input/output card. The digital input/output card comprises a first memory, a processor, and a second memory. The ... 07/14/05 - 20050152446 - Vsb communication system A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according ... 07/14/05 - 20050152445 - Bandwidth-efficient modulation in communication systems A transmitter of digital data includes a modulator with an input for a carrier signal and an input for a first stream of control symbols. The modulator modulates the carrier signal with a second stream of symbols produced by the modulator. Each symbol of the second stream has a value ... 07/07/05 - 20050147159 - Method of processing image and audio information, image and audio processing apparatus and computer program that causes a computer to process image and audio information A method of processing image information in which the image information is encoded by the bit plane and compressed by truncating one or more of the bit planes. Since the index parameter indexing the effect of the truncation on the quality of the image information is generated before the truncation, ... 06/30/05 - 20050141606 - Vsb communication system A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according ... 06/23/05 - 20050135475 - Continuous time filter-decision feedback equalizer architecture for optical channel equalization A communication system having a transmitter transmits an information signal over a communication media and a receiver coupled to the communication media receives the transmitted information signal. The receiver includes a continuous time filter having an adjustable bandwidth for linearly equalizing the transmitted information signal as a function of the ... 06/09/05 - 20050123036 - Method and apparatus for controlling the bandwidth frequency of an analog filter An analog filter (10) having a bandwidth tracking circuit includes an analog filter element (14) and a digital tracking loop (22). The digital tracking loop (22) compares a magnitude difference to a predetermined threshold to generate an error signal. The magnitude difference is determined during a closed loop bandwidth calibration ... ### FreshPatents.com Support |