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| Number | Title | Issue Date |
| 8179291 | Method and system for compression of logical data objects for storage There is provided a compression system configured to compress logical data objects into one or more accommodation blocks with a predefined size, and a method of operating thereof. The compression system includes a compression engine capable of compressing input data... | 05/15/2012 |
| 8174412 | Combined hash for variable data chunks A method comprises obtaining a plurality of variable size chunks of data, calculating a first hash for each variable size chunk of data, determining a length representation for each variable size chunk of data, determining a second hash of a subset of each variable ... | 05/08/2012 |
| 8159374 | Unicode-compatible dictionary compression A character data set is compressed with a compression algorithm module of a computer system to generate one or more streams of encoded values. A code point mapper assigns the encoded values to code points reserved for private use in a Unicode format. An encoder enco... | 04/17/2012 |
| 8149144 | Hybrid arithmetic-combinatorial encoder Hybrid range coding/combinatorial coding (FPC) encoders and decoders are provided. Encoding and decoding can be dynamically switched between range coding and combinatorial according to the ratio of ones to the ratio of bits in a partial remaining sequence in order t... | 04/03/2012 |
| RE43292 | Data compression system and method The invention provides a method of compressing a data file comprising a sequence of bytes of a length greater than or equal to a predefined length, the method including the steps of: retrieving the data file from a secondary storage device; storing the data file in ... | 04/03/2012 |
| 8149145 | Method and apparatus for adaptive lossless data compression A method for performing adaptive lossless data compression using a buffer memory comprises the steps of receiving a plurality of first match signals (m(0) to m(n)), each first match signal indicating whether a byte of an input sequence matches a byte in a mem... | 04/03/2012 |
| 8134483 | Data processing apparatus and method An apparatus includes: a storage storing data input and sliding stored data per input; first and second comparators comparing in parallel the input data with each stored data and obtaining a position of data matching the input data; first and second determiners each... | 03/13/2012 |
| 8134484 | Encoding and decoding method and device A device relating to information processing technologies and including an encoding and decoding method configured to solve the poor decoding quality problem. The method includes: encoding each sample of an input signal to generate an encoded signal of a core layer; ... | 03/13/2012 |
| 8125357 | Deflate decompressor A deflate decompressor includes at least one decompressor unit, a memory access controller, a feedback path, and an output buffer unit. The memory access controller is coupled to the decompressor unit via a data path and includes a data buffer to receive the data st... | 02/28/2012 |
| 8120515 | Knowledge based encoding of data with multiplexing to facilitate compression Methods, apparatuses, and articles of manufacture for encoding data and decoding encoded data based on one or more knowledge representation describing the data, which may include one or more finite automata; for multiplexing the encoded data, after encoding the data... | 02/21/2012 |
| 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 |
