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| Number | Title | Issue Date |
| 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 by a plurality of compressors. A combining unit combines compressed da... | 01/24/2012 |
| 8085171 | High-speed data compression based on set associative cache mapping techniques A method is provided for compressing data from a stream of values using one or many distinct memory addresses as workspace, each memory address containing one or many values. The method works by reading two contiguous data values, of length K and N bits, from the st... | 12/27/2011 |
| 8068042 | Coding method, decoding method, and apparatuses, programs and recording media therefor An object of the present invention is to achieve high coding efficiency for a companded signal sequence and reduce the amount of codes. A coding method according to the present invention includes an analysis step and a signal sequence transformation step. The analys... | 11/29/2011 |
| 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, respectively, and first and second time information representing start times o... | 11/08/2011 |
| 8044829 | Multi-mode encoding for data compression The present disclosure includes apparatus, systems and techniques relating to lossless data compression. In some implementations, an apparatus includes a memory module to store data. The memory module includes a first buffer portion to store encoded symbols of the d... | 10/25/2011 |
| 8031089 | Data compression by multi-order differencing Embodiments of the present invention enable compression and decompression of data. Applications of the present invention are its use in embodiments of systems for compression and decompression of GPS long-term Ephemeris (LTE) data, although the present invention is ... | 10/04/2011 |
| 8013762 | Evaluating alternative encoding solutions during data compression Method and apparatus for compressing data. In accordance with various embodiments, an input string of data bits is received and arranged into fixed-sized chunks. Multiple successive chunks of the input string are compared to previously received chunks of the input s... | 09/06/2011 |
| 8009067 | Method and apparatus for coding and decoding using bit-precision Discussed are a method and an apparatus of encoding/decoding by using a bit precision. In accordance to an aspect of the present invention, it is possible to encoding and decoding an image or a video by using a bit precision. Accordingly, compression efficiency can ... | 08/30/2011 |
| 8009066 | Method and apparatus for coding and decoding using bit-precision Discussed are a method and an apparatus of encoding/decoding by using a bit precision. In accordance to an aspect of the present invention, it is possible to encoding and decoding an image or a video by using a bit precision. Accordingly, compression efficiency can ... | 08/30/2011 |
| 7994946 | Systems and methods for scalably encoding and decoding data Systems and methods for scalably encoding and decoding coded data are presented. One exemplary method for scalably coding data includes classifying, based upon at least one predetermined criteria, each of the plurality of data received as either (i) perceptually rel... | 08/09/2011 |
| 7990291 | Determination of compression state information for use in interactive compression The invention is directed at a method and apparatus for determining compression state information which is to be used in the compression of data being transmitted between two communicating parties. The method of determining the compression state information for use ... | 08/02/2011 |
| 7982636 | Data compression using a nested hierachy of fixed phrase length static and dynamic dictionaries The present invention describes lossless data compression/decompression methods and systems. A random access memory (RAM) operates as a static dictionary and includes commonly used strings/symbols/phrases/words. An input buffer operates as a dynamic dictionary and i... | 07/19/2011 |
| 7973680 | Method and system for creating an in-memory physical dictionary for data compression A system and computer readable storage medium for creating an in-memory physical dictionary for data compression are provided. A new heuristic is defined for converting each of a plurality of logical nodes into a corresponding physical node forming a plurality of ph... | 07/05/2011 |
| 7969333 | Complexity-aware encoding Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part up... | 06/28/2011 |
| 7956772 | Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes A method of encoding data for transmission from a source to a destination over a communications channel is provided. A plurality of encoded symbols are generated from a set of input symbols including source symbols and redundant symbols, wherein the input symbols ar... | 06/07/2011 |
| 7944375 | Wear reduction methods by using compression/decompression techniques with fast random access The present invention reduces the number of writes to a main memory to increase useful life of the main memory. To reduce the number of writes to the main memory, data to be written is written to a cache line in a lowest-level cache memory and in a higher-level cach... | 05/17/2011 |
| 7924177 | Distributed on-demand media transcoding system and method A method for delivering media content over a network includes transcoding the media content to generate multiple copies of the media content, each of the multiple copies having a different destination type or a different source type or both, storing the multiple cop... | 04/12/2011 |
| 7924178 | System and method for lossless data compression An embodiment of a method for compressing data includes variable length coding one or more values of control codes generated from dictionary coding the data, wherein the control codes comprise literals and indices, wherein each index comprises a length value and a p... | 04/12/2011 |
| 7898442 | On-line data compression analysis and regulation Data compression efficacy in a data storage system is analyzed, and data compression modified in accordance with the results of such analysis, thereby saving otherwise wasted processor time when data compression is poor. Multiple input data blocks are received for s... | 03/01/2011 |
| 7898443 | Apparatus and methods using a linear memory model for encoder output buffers Apparatus and methods for using a linear memory model for encoder output buffering are disclosed. The apparatus and method effect linear memory output buffering by dividing an encoder operation having N sequential frames to be encoded by an encoder into N encoder op... | 03/01/2011 |
| 7889102 | LZSS with multiple dictionaries and windows A method and apparatus for compressing data is described. An input string to be compressed is received. The input string is encoded with compressor using a compression algorithm using several sizes of dictionaries and windows. The compressor processes the input stri... | 02/15/2011 |
| 7876240 | Arithmetic decoding method and device A method for decoding elements is disclosed. The method decodes at least a part of the binary stream into a set of elements on the basis of first and second decoding parameters CodlOffset0 and CodIRange, the set of elements comprising a prefix composed of... | 01/25/2011 |
| 7872597 | Systems and methods of using application and protocol specific parsing for compression Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long compression history matches, a network device may improve compression efficient... | 01/18/2011 |
| 7872596 | Dictionary-based compression A method and apparatus for compressing data is described. A compressor builds a dictionary associated with the characters in the input string. A table in the dictionary is generated by looking backward from a current character being encoded in the input string to de... | 01/18/2011 |
| 7868788 | System and method for encoding data based on a compression technique with security features Described herein is an efficient encryption method and system having improved security features based on randomness. The method and system utilize a random dictionary insertion and a random dictionary permutation, and a key stream generated by a stream cipher. Secur... | 01/11/2011 |
| 7868789 | Dictionary-based order-preserving string compression for main memory column stores Methods and systems are described that involve usage of dictionaries for compressing a large set of variable-length string values with fixed-length integer keys in column stores. The dictionary supports updates (e.g., inserts of new string values) without changing c... | 01/11/2011 |
| 7864079 | Ternary and higher multi-value digital scramblers/descramblers Ternary (3-value) and higher, multi-value digital scramblers/descramblers in digital communications. The method and apparatus of the present invention includes the creation of ternary (3-value) and higher value truth tables that establish ternary and higher value sc... | 01/04/2011 |
| 7864078 | Method and device for decoding a signal A method and a device for decoding a signal transmitted via at least one transmission line of a data transmission system, in a user of the data transmission system receiving the signal. Instead of at discrete instants, as currently done, sampling at a specific sampl... | 01/04/2011 |
| 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 same time. The integrated hashing and decompression techniques of th... | 12/07/2010 |
| 7839308 | Using codewords in a wireless communication system Systems, methodologies, and devices are described that can facilitate bandwidth efficient non-coherent signaling for uplink control channel transmissions. A communication device (e.g., a mobile device, base station) can be configured to utilize or generate a set of ... | 11/23/2010 |
| 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 and the encoded literal symbols correspond to a second group of literal... | 10/26/2010 |
| 7800517 | Information processing apparatus, information processing method, and computer program An information processing apparatus includes: a data acquisition section inputting data; a data conversion section performing data conversion processing on the data input through the data acquisition section; and a control section performing data processing using th... | 09/21/2010 |
| 7777651 | System and method for data feed acceleration and encryption The transmission of broadcast data, such as financial data and news feeds, is accelerated over a communication channel using data compression and decompression to provide secure transmission and transparent multiplication of communication bandwidth, as well as reduc... | 08/17/2010 |
| 7764202 | Lossless data compression with separated index values and literal values in output stream An input stream of characters is received. The input stream is parsed into a plurality of strings each of which include one or more of the characters, wherein each parsed string is a longest match to a string entry in a data structure. An output stream is generated ... | 07/27/2010 |
| 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 string in an input stream, determine an age indicator for the string,... | 07/27/2010 |
| 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 existing string entries in the data structure. An additional string ... | 07/06/2010 |
| 7737869 | Symbol based data compression Briefly, within a computer or digital data processing system, embodiments describe a method, article and apparatus for compressing data is described, which may be used for communicating between two or more components connected to an interconnection medium (e.g., a b... | 06/15/2010 |
| RE41370 | Adaptive transform coding system, adaptive transform decoding system and adaptive transform coding/decoding system In an adaptive transform coding system and/or and adaptive transform decoding system, coding efficiency in the case where a small number of quantized values having large absolute value are present, is improved. The adaptive transform coding system codes the small nu... | 06/08/2010 |
| 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 more positions of a second symbol string within the data is also gener... | 06/01/2010 |
| 7728739 | Entropy codec with variable divisor Data values are encoded for transmission to a recipient on a communication channel. Performance information associated with the encoding or the communication channel is obtained and used at least in part to determine quantization factors used in the encoding. The da... | 06/01/2010 |
