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1. 发明授权

US10742990B2 Data compression system 有权
公开(公告)号：US10742990B2
公开(公告)日：2020-08-11
申请号：US16137519
申请日：2018-09-20
申请人： Microsoft Technology Licensing, LLC
发明人： Sebastian Nowozin , Ryota Tomioka , Diane Bouchacourt
IPC分类号： H03M7/38 , H04N19/149 , G10L15/14 , H03M7/30 , H04N19/12 , H04N19/61 , H04N19/94 , H04N19/97 , G06F16/28 , H03M7/40 , H04N9/04
摘要： A data compression apparatus is described which has an encoder configured to receive an input data item and to compress the data item into an encoding comprising a plurality of numerical values. The numerical values are grouped at least according to whether they relate to content of the input data item or style of the input data item. The encoder has been trained using a plurality of groups of training data items grouped according to the content and where training data items within individual ones of the groups vary with respect to the style. The encoder has been trained using a training objective which takes into account the groups.

2. 发明申请

US20200235750A1 SYSTEMS AND METHODS FOR VARIABLE LENGTH CODEWORD BASED, HYBRID DATA ENCODING AND DECODING USING DYNAMIC MEMORY ALLOCATION 审中-公开
公开(公告)号：US20200235750A1
公开(公告)日：2020-07-23
申请号：US16691496
申请日：2019-11-21
申请人： Cyborg Inc.
发明人： Nicolas Thomas Mathieu DUPONT , Alexandre HELLE
IPC分类号： H03M7/38 , H04N19/91 , G06F16/901 , H03M7/30
摘要： A data encoding system includes a non-transitory memory, a processor, a digital-to-analog converter (DAC) and a transmitter. The non-transitory memory stores a predetermined file size threshold. The processor is in operable communication with the memory, and is configured to receive data. The processor detects a file size associated with the data. When the file size is below the predetermined file size threshold, the processor compresses the data using a variable length codeword (VLC) encoder. When the file size is not below the predetermined file size threshold, the processor compresses the data, using a hash table algorithm. The DAC is configured to receive a digital representation of the compressed data from the processor and convert the digital representation of the compressed data into an analog representation of the compressed data. The transmitter is coupled to the DAC and configured to transmit the analog representation of the compressed data.

3. 发明授权

US10305509B2 Compression of frequent data values across narrow links 有权
公开(公告)号：US10305509B2
公开(公告)日：2019-05-28
申请号：US15785127
申请日：2017-10-16
申请人： Advanced Micro Devices, Inc.
发明人： Greggory D. Donley , Vydhyanathan Kalyanasundharam , Bryan P. Broussard
IPC分类号： H03M7/38 , H03M7/30 , H04B1/40 , G06K9/62 , H03M7/42 , H04L29/08 , H04L27/26 , H04L1/06 , H04L1/00 , H04L25/02
摘要： Systems, apparatuses, and methods for compression of frequent data values across narrow links are disclosed. In one embodiment, a system includes a processor, a link interface unit, and a communication link. The link interface unit is configured to receive a data stream for transmission over the communication link, wherein the data stream is generated by the processor. The link interface unit determines if blocks of data of a first size from the data stream match one or more first data patterns and the link interface unit determines if blocks of data of a second size from the data stream match one or more second data patterns. The link interface unit sends, over the communication link, only blocks of data which do not match the first or second data patterns.

4. 发明授权

US10116330B2 Dynamic data compression selection 有权
公开(公告)号：US10116330B2
公开(公告)日：2018-10-30
申请号：US15655421
申请日：2017-07-20
申请人： Oracle International Corporation
发明人： Young Jin Nam , Aaron James Dailey , John Forte
IPC分类号： H03M7/34 , H03M7/38 , H03M7/30
摘要： Aspects of dynamic data compression selection are presented. In an example method, as uncompressed data chunks of a data stream are compressed, at least one performance factor affecting selection of one of multiple compression algorithms for the uncompressed data chunks of the data stream may be determined. Each of the multiple compression algorithms may facilitate a different expected compression ratio. One of the multiple compression algorithms may be selected separately for each uncompressed data chunk of the data stream based on the at least one performance factor. Each uncompressed data chunk may be compressed using the selected one of the multiple compression algorithms for the uncompressed data chunk.

5. 发明授权

US10033404B2 Technologies for efficiently compressing data with run detection 有权
公开(公告)号：US10033404B2
公开(公告)日：2018-07-24
申请号：US15639289
申请日：2017-06-30
申请人： Intel Corporation
发明人： Daniel F. Cutter , Vinodh Gopal , James D. Guilford
IPC分类号： H03M7/38 , H03M7/30
摘要： Technologies for efficiently compressing data with run detection include a compute device. The compute device is to produce a hash as a function of a symbol at a present position and a predefined number of symbols after the present position in an input stream, determine whether the symbol at the present position is part of a run, obtain, from a hash table, a chain of pointers to previous positions in the input stream associated with the hash, determine, as a function of whether the symbol is part of a run and to identify a matched string, a number of strings referenced by the chain of pointers to compare to a string associated with the present position in the input stream, and output, in response to an identification of a matched string, a reference to the matched string in a set of compressed output data.

6. 发明授权

US09698818B2 Entropy encoding and decoding scheme 有权
公开(公告)号：US09698818B2
公开(公告)日：2017-07-04
申请号：US15257606
申请日：2016-09-06
申请人： GE Video Compression, LLC
发明人： Detlev Marpe , Tung Nguyen , Heiko Schwarz , Thomas Wiegand
IPC分类号： H03M7/38 , H03M7/40 , H03M7/46
CPC分类号： H03M7/00 , H03M7/40 , H03M7/4006 , H03M7/46
摘要： Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

7. 发明授权

US09450606B1 Data matching for hardware data compression 有权
标题翻译：硬件数据压缩的数据匹配
公开(公告)号：US09450606B1
公开(公告)日：2016-09-20
申请号：US14873151
申请日：2015-10-01
申请人： Seagate Technology LLC
发明人： Howard William Winter
IPC分类号： H03M7/38 , H03M7/30 , H03M7/40
CPC分类号： H03M7/3084 , H03M7/30 , H03M7/40
摘要： Methods and apparatuses for generating match data for a symbol in a symbol history for use in a hardware-based data compressor. An apparatus for performing history matching for Lempel-Ziv (“LZ”) compression includes a symbol history RAM comprising 2S N bit entries, each entry corresponding to a symbol value represented by S bits and indicating locations within the last N symbols of input data where the symbol value occurred; a symbol counter array comprising 2S counters, each counter corresponding to a symbol value and indicating a number of symbols processed since the last occurrence of the symbol value in the input data; and a barrel shifter configured to shift the entry corresponding to an input symbol value left by a number of bits based on a value of the counter corresponding to the input symbol value to produce a symbol match vector for the input symbol.
摘要翻译：用于产生用于基于硬件的数据压缩器中的符号历史中的符号的匹配数据的方法和装置。用于执行Lempel-Ziv（“LZ”）压缩的历史匹配的装置包括：包括2S N个比特条目的符号历史RAM，每个条目对应于由S比特表示的符号值，并且指示输入数据的最后N个符号内的位置，符号值发生; 包括2S计数器的符号计数器阵列，每个计数器对应于符号值，并且指示从输入数据中的符号值的最后一次出现以来处理的符号数; 以及桶形移位器，被配置为基于与输入符号值相对应的计数器的值，将与输入符号值相对应的输入符号值移位多个位，以产生用于输入符号的符号匹配向量。

8. 发明授权

US09444490B2 Method of operating data compression circuit and devices to perform the same 有权
标题翻译：操作数据压缩电路的方法和执行相同的设备
公开(公告)号：US09444490B2
公开(公告)日：2016-09-13
申请号：US14146846
申请日：2014-01-03
申请人： Samsung Electronics Co., Ltd
发明人： Man Keun Seo , Dae Wook Kim , Hong Rak Son , Jun Jin Kong
IPC分类号： H03M7/38 , H03M7/30 , G06F13/14
CPC分类号： H03M7/30 , G06F13/14 , G06F13/1668 , H03M7/3084 , H03M7/3091
摘要： A method of operating a data compression circuit includes receiving and storing a plurality of data blocks until a cache is full and writing the data blocks that have been stored in the cache to a buffer memory when the cache is full. The method also includes performing forced literal/literal encoding on each of the data blocks regardless of repetitiveness of each data block when the cache is full.
摘要翻译：一种操作数据压缩电路的方法包括接收和存储多个数据块，直到高速缓存满了，并且当高速缓存已满时将已经存储在高速缓存中的数据块写入缓冲存储器。该方法还包括对每个数据块执行强制文字/文字编码，而不管每个数据块在高速缓存满时的重复性。

9. 发明授权

US08325069B2 System, method, and apparatus for a scalable processor architecture for a variety of string processing applications 有权
标题翻译：用于各种字符串处理应用的可扩展处理器架构的系统，方法和装置
公开(公告)号：US08325069B2
公开(公告)日：2012-12-04
申请号：US12645392
申请日：2009-12-22
申请人： Vinodh Gopal , Gilbert M. Wolrich , Christopher F. Clark , Wadji K. Feghali
发明人： Vinodh Gopal , Gilbert M. Wolrich , Christopher F. Clark , Wadji K. Feghali
IPC分类号： H03M7/34 , H03M7/38
CPC分类号： H03M7/40 , H03M7/3084 , H03M13/09
摘要： Systems, methods, and apparatus for a scalable processor architecture for variety of string processing application are described. In one such apparatus, n input first in, first out (FIFO) buffer stores an input stream. A plurality of memory banks store data from the input stream. A re-configurable controller processes the input stream. And an output FIFO buffer stores the processed input stream.
摘要翻译：描述了用于各种字符串处理应用的可扩展处理器架构的系统，方法和装置。在一个这样的装置中，n输入先进先出（FIFO）缓冲器存储输入流。多个存储器组从输入流存储数据。可重新配置的控制器处理输入流。并且输出FIFO缓冲器存储经处理的输入流。

10. 发明授权

US07847710B2 Integrating hashing and decompression of compressed data for safe computing environments and systems 失效
标题翻译：为安全的计算环境和系统集成了压缩数据的散列和解压缩功能
公开(公告)号：US07847710B2
公开(公告)日：2010-12-07
申请号：US12268001
申请日：2008-11-10
申请人： Onur Aciicmez , Jean-Pierre Seifert , Xinwen Zhang , Afshin Latifi
发明人： Onur Aciicmez , Jean-Pierre Seifert , Xinwen Zhang , Afshin Latifi
IPC分类号： H03M7/34 , H03M7/38
CPC分类号： H03M7/3086 , H03M7/30
摘要： 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 the invention are useful for any computing environment and/or system where compressed data is hashed and decompressed. The invention is especially useful for safe computing environment and/or system (e.g., a Trusted Computing (TC) computing environment) where hashing decompression of compressed data can be routinely performed. The Integrity of a computing environment and/or system can be protected by integrating the decompressing and hashing of the compressed data or effectively hashing and decompressing the compressed data at the same time. A combined hashing and decompression function can be provided based on conventional hashing and compression functions by integrating their similar components and in an efficient manner.
摘要翻译：公开了散列和解压缩数据的技术。可以集成压缩数据的哈希和解压缩，以便同时有效地对压缩数据进行散列和解压缩。本发明的集成散列和解压缩技术对于压缩数据被散列和解压缩的任何计算环境和/或系统是有用的。本发明对于可以常规执行压缩数据的散列解压缩的安全计算环境和/或系统（例如，可信计算（TC）计算环境）特别有用。计算环境和/或系统的完整性可以通过对压缩数据的解压缩和散列进行集成来进行保护，或者同时有效地对压缩数据进行散列和解压缩。可以通过集成其类似组件并以有效的方式，基于常规散列和压缩功能提供组合的散列和减压功能。

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