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1. 发明申请

US20160322986A1 METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT 审中-公开
公开(公告)号：US20160322986A1
公开(公告)日：2016-11-03
申请号：US15208717
申请日：2016-07-13
申请人： BlackBerry Limited
发明人： Dake HE , Jing WANG
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , H03M7/3075 , H03M7/3079
摘要： Methods and devices are described for entropy coding data using an entropy coder to encode quantized transform domain coefficient data. Last significant coefficient information is signaled in the bitstream using two-dimensional coordinates for the last significant coefficient. The context for bins of one of the coordinates is based, in part, upon the value of the other of the coordinates. In one case, instead of signaling last significant coefficient information, the number of non-zero coefficients is binarized and entropy encoded.

2. 发明申请

US20160204795A1 SYSTEMS AND METHODS FOR MODEL-FREE COMPRESSION AND MODEL-BASED DECOMPRESSION 有权
标题翻译：用于无模型压缩和基于模型的分解的系统和方法
公开(公告)号：US20160204795A1
公开(公告)日：2016-07-14
申请号：US14616248
申请日：2015-02-06
申请人： Massachusetts Institute of Technology
发明人： Ying-Zong Huang , Gregory W. Wornell
IPC分类号： H03M7/30 , H03M13/00
CPC分类号： H03M7/30 , H03M7/3079 , H03M7/6005 , H03M13/1102 , H03M13/1194 , H03M13/23 , H03M13/2957 , H03M13/6312
摘要： An encoder generates a compressed data sequence from an original data sequence using many-to-one mapping independently of a source model associated with the original data sequence and without extracting the source model. A decoder uses both the source model associated with the original data sequence and the mapping applied during compression that is devoid of, in substance, the source model, to regenerate, at least in part, the original uncompressed data sequence from the compressed data sequence that does not include a significant portion of the source model.
摘要翻译：编码器使用独立于与原始数据序列相关联的源模型的多对一映射从原始数据序列生成压缩数据序列，并且不提取源模型。解码器使用与原始数据序列相关联的源模型和在压缩期间应用的映射，其实质上不包括源模型，以至少部分地从压缩数据序列重新生成原始未压缩数据序列，不包括源模型的重要部分。

3. 发明授权

US09384204B2 Efficient data compression and analysis as a service 有权
标题翻译：高效的数据压缩和分析服务
公开(公告)号：US09384204B2
公开(公告)日：2016-07-05
申请号：US13900350
申请日：2013-05-22
申请人： Amazon Technologies, Inc.
发明人： Anurag Windlass Gupta
IPC分类号： G06F17/30 , H03M7/30
CPC分类号： G06F17/30153 , G06N99/005 , H03M7/30 , H03M7/3079 , H03M7/6088
摘要： Data may be efficiently analyzed and compressed as part of a data compression service. A data compression request may be received from a client indicating data to be compressed. An analysis of the data or metadata associated with the data may be performed. In at least some embodiments, this analysis may be a rules-based analysis. Some embodiments may employ one or more machine learning techniques to historical compression data to update the rules-based analysis. One or more compression techniques may be selected out of a plurality of compression techniques to be applied to the data. Data compression candidates may then be generated according to the selected compression techniques. In some embodiments, a compression service restriction may be enforced. One of the data compression candidates may be selected and sent in a response.
摘要翻译：数据可以作为数据压缩服务的一部分被有效地分析和压缩。可以从客户端接收指示要压缩的数据的数据压缩请求。可以执行与数据相关联的数据或元数据的分析。在至少一些实施例中，该分析可以是基于规则的分析。一些实施例可以对历史压缩数据采用一种或多种机器学习技术来更新基于规则的分析。可以从应用于数据的多种压缩技术中选择一种或多种压缩技术。然后可以根据选择的压缩技术生成数据压缩候选。在一些实施例中，可以强制执行压缩服务限制。可以在响应中选择并发送其中一个数据压缩候选。

4. 发明申请

US20150121111A1 SYSTEM AND METHOD FOR PROVIDING MULTI-USER POWER SAVING CODEBOOK OPTMIZATION 审中-公开
标题翻译：用于提供多用户省电代码的OPTIMIZATION的系统和方法
公开(公告)号：US20150121111A1
公开(公告)日：2015-04-30
申请号：US14062866
申请日：2013-10-24
申请人： Qualcomm Incorporated
发明人： DEXTER CHUN , HAW-JING LO
IPC分类号： G06F1/32 , H03M13/23 , G11C11/4074
CPC分类号： G06F1/3275 , G11C11/4074 , H03M7/3079 , H03M7/40 , H03M13/235
摘要： Systems and methods are disclosed for providing multi-user power saving codebook optimization. One such method comprises: generating a unique codebook for a plurality of computing devices, each unique codebook configured for encoding memory data in the corresponding computing device; providing the unique codebooks to the corresponding computing devices via a communications networks; receiving compression statistics from one or more of the computing devices via the communications network, the compression statistics related to the corresponding unique codebook; and generating an optimized codebook for at least one of the computing devices based on the received compression statistics.
摘要翻译：公开了用于提供多用户功率节省码本优化的系统和方法。一种这样的方法包括：为多个计算设备生成唯一的码本，每个唯一的码本被配置用于对相应的计算设备中的存储器数据进行编码; 通过通信网络向相应的计算设备提供唯一的码本; 经由通信网络从一个或多个计算设备接收压缩统计信息，与相应的唯一码本相关的压缩统计; 以及基于所接收的压缩统计信息为所述计算设备中的至少一个生成优化的码本。

5. 发明授权

US08791843B2 Optimized bitstream encoding for compression 有权
标题翻译：优化的比特流编码进行压缩
公开(公告)号：US08791843B2
公开(公告)日：2014-07-29
申请号：US13651627
申请日：2012-10-15
申请人： LSI Corporation
发明人： Earl T. Cohen
IPC分类号： H03M7/34 , H03M7/38
CPC分类号： H03M7/3084 , H03M7/3079
摘要： An apparatus includes a first circuit and a second circuit. The first circuit may be configured to generate (i) a compressed representation of an input sequence of characters and (ii) statistics regarding one or more types of information in the compressed representation of the input sequence of characters. The second circuit may be configured to generate a compressed bitstream representation of the input sequence of characters in response to the compressed representation of the input sequence of characters and one or more of the statistics regarding the one or more types of information in the compressed representation of the input sequence of characters. The bitstream values encoding the one or more types of information are generally determined based upon a frequency of occurrence of the one or more types of information in the compressed representation of the input sequence of characters.
摘要翻译：一种装置包括第一电路和第二电路。第一电路可以被配置为产生（i）输入字符序列的压缩表示，以及（ii）关于输入字符序列的压缩表示中的一种或多种类型的信息的统计。第二电路可以被配置为响应于输入的字符序列的压缩表示来产生输入的字符序列的压缩比特流表示，以及关于压缩表示中的一个或多个类型的信息的一个或多个统计信息字符的输入序列。编码一种或多种类型的信息的比特流值通常基于输入字符序列的压缩表示中的一种或多种类型的信息的出现频率来确定。

6. 发明申请

US20050131930A1 Method and system for generating input file using meta representation on compression of graphics data, and animation framework extension (AFX) coding method and apparatus 失效
标题翻译：用于在图形数据压缩上使用元表示生成输入文件的方法和系统，以及动画框架扩展（AFX）编码方法和装置
公开(公告)号：US20050131930A1
公开(公告)日：2005-06-16
申请号：US11001117
申请日：2004-12-02
申请人： Gyeong-ja Jang , Do-kyoon Kim
发明人： Gyeong-ja Jang , Do-kyoon Kim
IPC分类号： H03M7/30 , G06F17/00 , H04N5/91 , H04N7/12 , H04N7/24
CPC分类号： H04N21/44012 , H03M7/3077 , H03M7/3079 , H04N21/23412 , H04N21/8146 , H04N21/84 , H04N21/8543 , Y10S707/99942
摘要： Provided are a method and system for generating an input file using meta representation of compression of graphics data, and an animation framework extensions (AFX) encoding method and apparatus. The method of generating an input file includes preparing an extensible MPEG-4 textual (XMT) schema that defines a compression node, encoding parameters, and BitWrapperEncodingHints; preparing an XMT2BIFS style sheet that supports conversion of an input XMT file into a scene file according to the XMT schema, and an XMT2MUX style sheet that supports conversion of the input XMT file into a mux file according to the XMT schema; generating the scene file and the mux file by parsing the input XMT file according to the XMT schema using the XMT2BIFS and XMT2MUX style sheets; determining whether the scene file contains uncompressed graphics data; and compressing the graphics data into a bitstream using the encoding parameters and generating a modified scene file and a modified mux file, when uncompressed graphics data is present in the scene file. Accordingly, it is possible to allow an author to easily express or compress three-dimensional (3D) graphics data using meta representation during authoring of 3D contents and generate an input file that can be input to an MPEG-4 encoder. Therefore, it is possible to visualize 3D graphics data or animation data in real time even at a low network bandwidth.
摘要翻译：提供了使用图形数据的压缩的元表示以及动画框架扩展（AFX）编码方法和装置来生成输入文件的方法和系统。生成输入文件的方法包括准备定义压缩节点，编码参数和BitWrapperEncodingHints的可扩展MPEG-4文本（XMT）模式; 准备一个XMT2BIFS样式表，该表格支持将输入XMT文件转换为根据XMT架构的场景文件;以及XMT2MUX样式表，其支持根据XMT模式将输入的XMT文件转换为多路复用文件; 通过使用XMT2BIFS和XMT2MUX样式表，根据XMT模式解析输入的XMT文件，生成场景文件和mux文件; 确定场景文件是否包含未压缩的图形数据; 以及当所述场景文件中存在未压缩的图形数据时，使用所述编码参数将所述图形数据压缩为比特流并生成修改的场景文件和修改的多路复用文件。因此，可以允许作者在创建3D内容期间使用元表示容易地表达或压缩三维（3D）图形数据，并且生成可输入到MPEG-4编码器的输入文件。因此，即使在较低的网络带宽下也可以实时显示3D图形数据或动画数据。

7. 发明申请

US20180269897A1 NON-BINARY CONTEXT MIXING COMPRESSOR/DECOMPRESSOR 审中-公开
公开(公告)号：US20180269897A1
公开(公告)日：2018-09-20
申请号：US15458651
申请日：2017-03-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： TOBIAS BLAETTLER , THOMAS MITTELHOLZER , THOMAS PARNELL , CHARALAMPOS POZIDIS
IPC分类号： H03M7/30 , G06N99/00 , G06N7/08 , G06N3/04 , G06N3/08
CPC分类号： H03M7/30 , G06N3/04 , G06N3/08 , G06N5/046 , G06N7/08 , G06N20/00 , H03M7/3079 , H03M7/4018 , H04N19/13 , H04N19/91
摘要： A technique for non-binary context mixing in a compressor includes generating, by a plurality of context models, model predictions regarding a value of a next symbol to be encoded. A mixer generates a set of final predictions from the model predictions. An arithmetic encoder generates compressed data based on received input symbols and the set of final predictions. The received input symbols belong to an alphabet having a size greater than two and the mixer generates a feature matrix from the model predictions and trains a classifier that generates the set of final predictions.

8. 发明申请

US20180246657A1 DATA COMPRESSION WITH INLINE COMPRESSION METADATA 审中-公开
公开(公告)号：US20180246657A1
公开(公告)日：2018-08-30
申请号：US15442511
申请日：2017-02-24
申请人： Advanced Micro Devices, Inc.
发明人： Greg Sadowski
IPC分类号： G06F3/06 , G06F17/30
CPC分类号： G06F16/1744 , G06F3/0608 , G06F3/064 , G06F3/068 , G06F2212/401 , H03M7/30 , H03M7/3077 , H03M7/3079 , H04L9/3247 , H04L63/123 , H04L63/126 , H04L69/04 , H04L2209/30
摘要： Techniques for handling data compression in which metadata that indicates which portions of data are compressed are which portions of data are not compressed are disclosed. Segments of a buffer referred to as block groups store compressed blocks of data along with uncompressed blocks of data and hash blocks. If a block group includes a block that is a hash of another block in the block group, then the other block is considered to be compressed. If the block group does not include a block that is a hash of another block in the block group, then the blocks in the block group are uncompressed. The hash function to generate the hash is selected to prevent “collisions,” which occur when the data being stored in the buffer is such that it is possible for a hash block and an uncompressed block to be the same.

9. 发明申请

US20180198463A1 METHOD OF COMPRESSION FOR FIXED-LENGTH DATA 审中-公开
公开(公告)号：US20180198463A1
公开(公告)日：2018-07-12
申请号：US15741337
申请日：2016-07-04
申请人： KinematicSoup Technologies Inc.
发明人： Justin McMICHAEL
IPC分类号： H03M7/30 , A63F13/31 , H04L29/06
CPC分类号： H03M7/3077 , A63F13/31 , A63F2300/534 , H03M7/30 , H03M7/3079 , H03M7/3086 , H03M7/4018 , H03M7/4056 , H04L67/38 , H04L69/04
摘要： The disclosure is directed at a method of data compression. The method includes creating a set of single composite data structures and then calculating a set of bit probabilities based on the set of single data structures. The bit probabilities are then used to create a set of intermediate buffers which are then sorted and traversed for data compression.

10. 发明申请

US20180039902A1 UTILIZING SPATIAL STATISTICAL MODELS TO REDUCE MEMORY AND PROCESSING RESOURCE UTILIZATION 审中-公开
公开(公告)号：US20180039902A1
公开(公告)日：2018-02-08
申请号：US15721355
申请日：2017-09-29
申请人： Adam Jeffries
发明人： Adam Jeffries
IPC分类号： G06N7/00 , G06F17/30 , H04N19/91 , H03M7/30 , H04N19/463
CPC分类号： G06N7/005 , G06F17/30595 , H03M7/3068 , H03M7/3079 , H03M7/70 , H04N19/463 , H04N19/91
摘要： A method, article comprising machine-readable instructions and apparatus that processes data systems for encoding, decoding, pattern recognition/matching and data generation is disclosed. State subsets of a data system are identified for the efficient processing of data based, at least in part, on the data system's systemic characteristics.

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