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8184025 |
Method and apparatus of generating codewords in wireless communication system
A method and apparatus for generating and transmitting codewords is provided. The method includes receiving information bits with a variable length, selecting vectors by the length of the...
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8164492 |
Apparatus and method for fast data encoding and decoding
An improved method for encoding and decoding data, such as in a base64 system, uses multiple look-up tables to perform the encoding function and to eliminate or reduce bit-shifting and the bit...
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8149148 |
Local binary XML string compression
Targeted compression of strings is provided for XML and other documents using local tables whose scope need not align with syntactically well-formed document regions. The local table's scope is...
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8125364 |
Data compression/decompression method
A compression engine starts compressing data by a preset first compression rule, compresses the following data by a second compression rule when the characteristics of the data satisfy a...
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8120516 |
Data compression using a stream selector with edit-in-place capability for compressed data
A method for encoding an input file into an output file that is compressed so that the number of bits required to represent the output file is less than the number of bits of the input file. The...
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8106799 |
Data compression and decompression using parallel processing
The present disclosure includes apparatus, systems and techniques relating to pipelined processing. In some implementations, a method performed by a data processing device includes storing data in...
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8102287 |
Compression/decompression apparatus and compression/decompression method
In a compression/decompression apparatus that compresses or decompresses a plurality of sub-block data elements, a compressing unit compresses the plurality of sub-block data elements in parallel...
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8072359 |
Binary arithmetic coding device
An object of the present invention is to provide a binary arithmetic coding device that allows real-time processing with a higher image quality. At a timing at which a ternary data string for a...
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8072358 |
Variable length decoder, encoder, and variable length decoding method
A variable length decoder that decodes a variable length code to output data including a run and a level, the variable length decoder includes a memory that stores an output format of a run and a...
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8054206 |
Decoding device and decoding method
A decoding method includes: inputting control information including first and second codec identifiers identifying first and second codecs corresponding to first and second material data,...
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8044830 |
Method and an apparatus for processing a signal
A method of processing a signal is disclosed. The present invention includes receiving a maximum number of band and a code value of at least one section length, calculating a bit number...
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8031090 |
Codebook for multiple user multiple input multiple output system and communication device using the codebook
Disclosed are a Multiple User Multiple Input Multiple Output (MU-MIMO) codebook design method, and a communication device using the codebook. A MU-MIMO codebook design method includes analyzing...
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7994951 |
Digital signal coding method and apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method
In a bit stream syntax containing compressed video slice data for compressed video data of a slice structure, a slice header for compressed video slice data has attached thereto a slice start code,...
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7978103 |
Code amount estimating device, image coding apparatus including the code amount estimating device, and code amount estimating method
To provide a code amount estimating device which can perform, at high speed and with high precision, estimation of code amount obtained after arithmetic coding. The code amount estimating device...
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7965206 |
Apparatus and method of lossless coding and decoding
An apparatus and a method of lossless coding and decoding are provided. The apparatus to perform lossless coding may selectively perform an arithmetic coding scheme or a Huffman coding scheme with...
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7961119 |
Memory efficient indexing for disk-based compression
A network optimization device may receive a stream of data and generate a signature for a plurality of fixed length overlapping windows of the stream of data. The device may select a predetermined...
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7956776 |
Arithmetic decoding apparatus
Disclosed herein is an arithmetic decoding apparatus including an instruction decoder configured to decode an arithmetically encoded data decoding instruction to be executed for carrying out an...
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7956774 |
Variable length coding method and variable length decoding method
An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length...
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7941311 |
System and method for linguistic collation
A system and method is provided for handling the collation of linguistic symbols of different languages that may have various types of compressions (e.g., from 2-to-1 to 8-to-1). A symbol table of...
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7936290 |
Dynamic selection of suitable codes for variable length coding and decoding
A data compressor for compressing a data signal and a corresponding data decompressor are disclosed. The data compressor comprises: compression circuitry for compressing said data signal using a...
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7928869 |
Digital signal coding method and apparatus, digital signal decoding apparatus, ditigal signal arithmetic coding method and digital signal arithmetic decoding method
In a bit stream syntax containing compressed video slice data for compressed video data of a slice structure, a slice header for compressed video slice data has attached thereto a slice start code,...
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7903456 |
Superconducting circuit for high-speed lookup table
A high-speed lookup table is designed using Rapid Single Flux Quantum (RSFQ) logic elements and fabricated using superconducting integrated circuits. The lookup table is composed of an address...
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7898444 |
Decoding method
A decoding method comprising the following steps is provided. The mth lookup index for a new lookup table is obtained according to the number of leading 1's in the bit stream. The nth base Huffman...
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7870160 |
Block compression algorithm
A method for compressing a data stream based on a 3 byte sequence is used. Each three byte sequence is assigned a code word including a location and a length of the data associated with the code...
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7868792 |
Generating a boundary hash-based hierarchical data structure associated with a plurality of known arbitrary-length bit strings and using the generated hierarchical data structure for detecting whether an arbitrary-length bit string input matches one of a plurality of known arbitrary-length bit springs
A high-speed, space-efficient, scalable and easily updateable data boundary hash-based structure is generated and used. The proposed boundary hash-based data structure provides minimal perfect...
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7864085 |
Data compression method and apparatus
Embodiments of the invention include a dictionary based data compression method, apparatus and system that is not based on either the LZ77 compression algorithm or the LZ78 compression algorithm,...
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7859438 |
Digital signal coding method and apparatus, digital signal decoding apparatus; digital signal arithmetic coding method, and digital signal arithmetic decoding method
In a bit stream syntax containing compressed video slice data for compressed video data of a slice structure, a slice header for compressed video slice data has attached thereto a slice start code,...
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7852242 |
Increasing 8B/10B coding speed using a disparity look-ahead table
A method for encoding data packets includes providing an encoding scheme for coding source data units into encoded data units; establishing a first look-ahead table for the source data units;...
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7847710 |
Integrating hashing and decompression of compressed data for safe computing environments and systems
Techniques for hashing and decompression of data are disclosed. Hashing and decompression of compressed data can be integrated in order to effectively hash and decompress the compressed data at the...
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7839311 |
Architecture for multi-stage decoding of a CABAC bitstream
Techniques for optimizing the Context-based Adaptive Binary Arithmetic Coding (CABAC) bitstream decoding are disclosed. In one configuration, a device has a first processing circuit operative to...
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7840403 |
Entropy coding using escape codes to switch between plural code tables
An audio encoder performs entropy encoding of audio data. For example, an audio encoder determines whether a first code table in a group of plural code tables contains a code representing a first...
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7834784 |
Data redundancy elimination mechanism including fast lookup of data patterns exhibiting spatial locality
A data redundancy elimination system. In particular implementations, a method includes accessing a data block; dividing the data block into a plurality of data chunks; computing chunk signatures...
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7834782 |
CABAC-type encoding device and method
A CABAC-type encoding device for encoding an initial flow of binary digital information for generating an output flow for forming video images after decoding, includes: elements for analyzing...
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7830283 |
Compact encoding of small integers
A method and apparatus for encoding a set of integers is described. The largest power of two integer is determined based on a size of the set of integers with an integer encoder. A code table is...
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7825834 |
Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream
A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a...
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7821426 |
Adaptive entropy coding compression output formats
A system stores compressed literal symbols in a first data block and encoded literal symbols in a second data block. The compressed literal symbols correspond to a first group of literal symbols...
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7804430 |
Methods and apparatus for processing variable length coded data
An apparatus for processing variable length coded data includes a coefficient buffer unit and several lookup tables. The coefficient buffer unit includes a coefficient memory and an index register...
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7800520 |
Method and system for entropy coding
A method and system are provided for encoding a plurality of integers with variable-length code tables constructed by combining a plurality of structured code tables. Each code table has an...
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7782233 |
Method and apparatus for encoding/decoding point sequences on laser binary representation
Provided are a method and an apparatus for selectively encoding/decoding point sequences to maximize bit efficiency of a lightweight application scene representation (LASeR) binary stream. The...
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7768430 |
Look-up table based memory
An integrated circuit (IC) having selectable memory elements is provided. The IC includes a logic array block (LAB) disposed within the IC. A plurality of logic elements, having look-up tables...
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7764746 |
User terminal and base station using adapted codebook according to polarization
A terminal and a base station using an adaptive codebook for a polarization are provided. The terminal includes a rotation matrix generator to generate rotation matrices corresponding to a cross...
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7764201 |
Table management for LZW with fixed-size tables
Managing a string translation table, where a compressor includes information in the table entries to distinguish strings as more or less important. More particularly, the compressor can identify a...
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7764205 |
Decompressing dynamic huffman coded bit streams
A method and system for decompressing dynamic Huffman coded bit streams is disclosed.
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7752041 |
Method and apparatus for encoding/decoding digital signal
A method and an apparatus for encoding/decoding a digital signal are provided. First, a digital input signal is transformed into samples to remove redundant information among signals. Then, a...
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7750826 |
Data structure management for lossless data compression
An input stream of characters is received. A new string entry is added to a data structure based on a current portion of the input stream if the current portion fails to match any of a plurality of...
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7733249 |
Method and system of compressing and decompressing data
The present invention relates to a data compression and decompression system and method for lossless compressing digital data. In one preferred embodiment, the method for handling a data stream...
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7728740 |
Data compression for communication between two or more components in a system
A method includes generating a first symbol string code indicative of one or more positions of a first symbol string within data to be compressed. A second symbol string code indicative of one or...
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7728744 |
Variable length decoder system and method
Simultaneously decoding one or more variable length code symbols including storing in a bit FIFO at least a portion of a variable length coded bit stream; storing a succession of extracted bit...
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7724164 |
Apparatus and method of dynamically caching symbols to manage a dictionary in a text image coding and decoding system
An apparatus of a text image coding and decoding system includes a decomposer to decompose image data to extract a stripe image having one or more symbols, a matching unit to match the symbols with...
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7714752 |
Variable length coding method and variable length decoding method
An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length...
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