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7388914 |
Moving picture coding and/or decoding systems, and variable-length coding and/or decoding system
A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are...
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7369066 |
Efficient 8×8 CABAC residual block transcode system
A circuit generally including a first module, a second module and a third module is disclosed. The first module may be configured to (i) generate a plurality of parsed residual blocks by parsing a...
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7359437 |
Encoding method and system for reducing inter-symbol interference effects in transmission over a serial link
A communication system including a transmitter, a receiver, and a serial link, in which encoded data (e.g., encoded video data and encoded auxiliary data) are transmitted from the transmitter to...
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7356083 |
Data compression system and method
This invention produces data packets that can vary in length and/or data compression ratio. First, an algorithm is employed to transform a data signal into fixed or variable length data packets at...
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7356080 |
MPEG-4 encoder using H.263 multimedia chip
An MPEG-4 encoder utilizing an H.263 multimedia chip. The MPEG-4 encoder includes a DC (Direct Current) predictor for predicting a DC component of the image frame encoded by an H.263 standard upon...
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7352811 |
Data encoding apparatus and method
A data encoding apparatus operable to encode a plurality of data blocks produces encoded data in accordance with at least one of a selectable target data quantity or a selectable target data...
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7342965 |
Adaptive method and system for mapping parameter values to codeword indexes
A method and system for entropy coding, where parameters indicative of a coded signal are mapped into codeword indexes so that a decoder can reconstruct the coded signal from the codeword indexes....
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7336711 |
Image encoding method, image decoding method, image encoder, image decode, program, computer data signal, and image transmission system
A motion of an image in a block is detected with respect to image data D 1 , a coding mode to be applied thereto is selected among a plurality of prepared coding modes, and motion compensation is...
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7305174 |
System and method for compressing data
A system and method for compressing an image into bit streams allows data to be presented in either lossy or lossless quality. A lossy quality presentation results in some measurable degradation of...
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7305035 |
Variable length encoding method and variable length decoding method
A variable length coding method is provided for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a...
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7302005 |
Efficient coding of side information in a lossless encoder
For "Super Audio CD" (SACD) the DSD signals are losslessly coded, using framing, prediction and entropy coding. Besides the efficiently encoded signals, a large number of parameters, i.e. the...
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7292636 |
Using order value for processing a video picture
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...
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7283591 |
Parallelized dynamic Huffman decoder
Several code detectors in parallel simultaneously examine varying overlapping segments of a data stream containing variable length codes, referred to as a data window. The data window segments...
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7280595 |
Post-inverse-quantization AC prediction with a unified variable-length-decoding and inverse-quantization stage
A motion-picture-experts group (MPEG) decoder performs AC prediction to decode first-column or first-row coefficients that are coded as differences from corresponding coefficients in a prior block...
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7263128 |
Triple-buffering method for overlapped motion compensation in a video decoder
A method of improving performance within video decoders subject to the execution of overlapped motion compensation. The method utilizes a triple-buffering approach to achieve rapid data transfers...
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7262719 |
Fast data stream decoding using apriori information
Methods and systems for improving performance of data decoding using apriori information about the data steam. In one aspect a decoder may determine the degree of lossiness inherent in the data or...
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7250878 |
Decoding device with multi-buffers and decoding method thereof
A decoding device includes a variable-length decoding circuit, a first buffer, a second buffer and a DC/AC prediction circuit is disclosed. The variable length decoding circuit decodes a first...
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7236530 |
Variable-length decoding apparatus and decoding method
Encoded data using reversible variable length code words is input to a forward decoder ( 123 ) to be decoded in the forward direction. When an error is detected in the encoded data in the forward...
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7233619 |
Variable general purpose compression for video images (ZLN)
Methods, medium, and machines which compress, enhance, encode, transmit, decompress and display digital video images in real time. Real time compression is achieved by sub-sampling each frame of a...
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7221761 |
Error resilient digital video scrambling
A method and an apparatus for error resilient, digital image scrambling are disclosed. Error resilience scrambling is produced by shuffling transform coefficients between arrays of coefficients...
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7215707 |
Optimal scanning method for transform coefficients in coding/decoding of image and video
An optimal scanning method for coding/decoding an image signal is provided. In a method of coding an image signal through a discrete cosine transform, at least one is selected among a plurality of...
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7203235 |
Architecture and method for fine granularity scalable video coding
A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an...
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7200858 |
Data distribution system
An interactive system for obtaining data for diagnostic purposes from a server having access to stores of said data wherein the server supplies the data and software to a data requesting user that...
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7193542 |
Digital data compression robust relative to transmission noise
The invention concerns a digital data compression encoder, characterized in that it comprises: an input for a first data flow (S H ), and a second data flow (S L ), an encoding module, matching...
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7190884 |
Signal recording apparatus and method, signal reproducing apparatus and method, medium, and information assembly
A signal recording apparatus includes a quantizer for quantizing a signal employing a quantization step. The apparatus further includes a quantization information creator for creating plural pieces...
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7177355 |
Method for representing encoding upon coding information
A method of representing encoding or non-encoding by extending a video information field of a block when coding video information, is provided. The method of representing encoding or non-encoding...
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7161509 |
Variable-length code decoding apparatus and method
There are provided a variable-length code decoding apparatus and method which can perform high-speed decoding processing without decreasing an image size and frame rate. A variable-length code...
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7158571 |
System and method for balancing video encoding tasks between multiple processors
System and method for balancing video encoding tasks between multiple processors. The method may include receiving a real time video stream, performing picture level and upper processing on a main...
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7154953 |
Video bit stream decoding system and method used in a video decoding apparatus
The invention relates to a decoding apparatus and same method for decoding a video bit stream. The apparatus decodes an encoded video bit stream to produce pixel data of a first and second...
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7151800 |
Implementation of a DV video decoder with a VLIW processor and a variable length decoding unit
A decoder for decoding a plurality of digital video data is described. In an embodiment, the decoder comprises a DV video decoder for decoding digital video data which is formatted according to the...
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7145952 |
Dynamic selection of field/frame-based MPEG video encoding
A discrete cosine transform (DCT) level enhancement to Motion Picture Experts Group (MPEG) video encoding is described that results in a more concise bitstream than MPEG encoding without the...
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7145946 |
MPEG video drift reduction
A drift reduction method and apparatus. Drift reduction is effected in an MPEG video transcoder by decoding dropped out pixels to form a drift reference frame. The quantization indices in the...
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7142603 |
Method and system for predictive table look-up code length of variable length code
A method and system for decoding symbols of variable length in a digital video bit stream in real time, using Very Long Instruction Word (VLIW) architecture. In one embodiment, several bit sections...
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7130475 |
Apparatus and method of encoding/decoding a coded block pattern
The present invention selectively applies one of VLC tables stored in a memory for encoding a coded block pattern of a macroblock according to the number of blocks having an object within the...
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7123654 |
Method and apparatus to encode a moving image with fixed computational complexity
An apparatus and method thereof to encode a moving image include a discrete cosine transform (DCT) unit performing a DCT process on input video data, a quantizer, and a motion estimation (ME) unit...
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7103102 |
Bit stream code lookup table for an MPEG-4 code word
A technique is described for decoding an MPEG-4 run-length-limited (RLL) code word using a hardware designed to decode MPEG-2 RLL code words.
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7099387 |
Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses
Transform coefficients of sample blocks of a macroblock of a video picture are encoded by adaptively encoding in combination, the number of non-zero coefficients before the trailing one...
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7065139 |
Video encoding method and video encoder for improving performance
Video encoding methods and video encoders that provide improved performance while reducing power consumption. In one aspect, a video encoding method comprises the steps of outputting a parameter...
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7062096 |
Apparatus and method for performing bitplane coding with reordering in a fine granularity scalability coding system
An apparatus and method for performing bitplane coding with reordering, that may be used in a Fine Granularity Scalability (FGS) system. The apparatus and method reorder coefficients each time...
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7054367 |
Edge detection based on variable-length codes of block coded video
Edges are detected in block coded video by a threshold comparison upon the lengths of variable-length codes used for encoding the differential DC coefficients of the pixel blocks. A thinning filter...
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7020194 |
Apparatus and method for vector descriptor representation and multimedia data retrieval
The present invention relates to an apparatus and a method for vector descriptor representation and multimedia data retrieval, which can quantize a plurality of feature values described by a vector...
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7016417 |
General purpose compression for video images (RHN)
Methods, medium, and machines which compress, encode, enhance, transmit, decompress and display digital video images in real time. Real time compression is achieved by sub-sampling each frame of a...
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7003042 |
Communication system transmitting encoded signal using block lengths with multiple integral relationship
A communication system for performing transmission and reception of a signal over a communication channel assesses a state of the communication channel and produces channel state information...
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6993079 |
Variable length coding method
A variable length coding method is provided. The method comprises comparing corresponding portions of a present picture and a previous picture received by a video encoder; and performing coding by...
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6970439 |
Method and apparatus for increasing orthogonal code space in a CDMA RAN
The present embodiments address the need for an apparatus and method that provides additional orthogonal codes without trading off RF capacity. When a system is operating near its RF capacity and...
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6963613 |
Method of communicating between modules in a decoding system
Means of communicating between modules in a decoding system. A variable-length decoding accelerator communicates with a core decoder processor via a co-processor interface. In one embodiment, other...
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6961381 |
Picture decoding device
A picture decoding device of the present invention comprises a CPU, receiving as input encoded moving picture information, for subtracting ‘1’ from a slice start code inside slice information...
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6934338 |
Variable length decoder for decoding digitally encoded video signals
A variable length decoder (VLD) for decoding MPEG-1 and -2 syntax compliant video bit streams. The VLD includes a micro-sequencer and VLD command decode/execution unit for controlling the MPEG...
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6928119 |
Method of MPEG-2 video variable length decoding in software
A method achieves high performance MPEG-2 video variable length decoding as to improve MPEG-2 video decoding process on the whole. The method includes parsing bits, Huffman code decoding for...
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6925249 |
System and method for storing compressed data onto a storage medium
A system and method for recording compressed data onto a storage medium so that it can be presented later in either lossy or lossless quality. The method receives a plurality of primary bit streams...
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