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1. 发明专利

JP2014183551A Data compression device, data compression method, data compression program, data decompression device, data decompression method, and data decompression program 有权
标题翻译：数据压缩设备，数据压缩方法，数据压缩程序，数据分解设备，数据解压缩方法和数据解压缩程序
公开(公告)号：JP2014183551A
公开(公告)日：2014-09-29
申请号：JP2013058644
申请日：2013-03-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO , NAKANO YASUHIKO , MARUYAMA TAKUMI , SUGA RYUJI , ITO SHIGEKI
IPC分类号： H03M7/40
CPC分类号： H03M7/6017 , H03M7/3086
摘要： PROBLEM TO BE SOLVED: To enable data decompression to be speeded up.SOLUTION: Search means 2a of a data compression device 2 examines the array of symbols in data 1 to be compressed, and searches for a second symbol string 1b whose symbol array matches that of a first symbol string 1a which appeared first. Encoding means 2b of the data compression device 2 encodes the second symbol string 1b into a code including information for specifying a block to which belongs a leading symbol of the first symbol string 1a. Code acquisition means 4a of a data decompression device 4 acquires a code from compressed data 3a in order beginning with the top of the compressed data. When the code of the second symbol string 1b is acquired, decompression means 4b of the data decompression device 4 acquires, from storage means 5 and on the basis of information for specifying a block to which belongs a leading symbol of the first symbol string 1a, one or more blocks following a block to which belongs the leading symbol of the decompressed first symbol string 1a, and thereby restores the second symbol string 1b.
摘要翻译：要解决的问题：使数据解压缩得到加快。解决方案：数据压缩设备2的搜索单元2a检查要压缩的数据1中的符号数组，并搜索其符号数组匹配的第二符号串1b 首先出现的第一个符号串1a。数据压缩装置2的编码装置2b将第二符号串1b编码成包括用于指定属于第一符号串1a的前导符号的块的信息的代码。数据解压缩装置4的代码获取装置4a从压缩数据的顶部开始按压缩数据3a获取代码。当获取第二符号串1b的代码时，数据解压缩装置4的解压缩装置4b从存储装置5获取基于用于指定属于第一符号串1a的前导符号的块的信息，跟随属于解压缩的第一符号串1a的前导符号的块之后的一个或多个块，从而恢复第二符号串1b。

2. 发明专利

JP2012235289A Compression apparatus, compression method, compression program and decompression apparatus 审中-公开
标题翻译：压缩装置，压缩方法，压缩程序和解压缩装置
公开(公告)号：JP2012235289A
公开(公告)日：2012-11-29
申请号：JP2011102108
申请日：2011-04-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： H03M7/36
摘要： PROBLEM TO BE SOLVED: To efficiently compress data.SOLUTION: A compression apparatus 100 acquires log data and extracts time information. The compression apparatus 100 divides the time information into a predetermined data width to generate a plurality of byte groups. The compression apparatus 100 compares adjacent values and calculates differential values in each byte group to generate differential value information 140a. The compression apparatus 100 compresses the differential value information 140a by, for example, an LZ77 algorithm, to generate compressed data.
摘要翻译：要解决的问题：有效地压缩数据。解决方案：压缩设备100获取日志数据并提取时间信息。压缩装置100将时间信息划分为预定的数据宽度以生成多个字节组。压缩装置100比较相邻值并计算每个字节组中的差分值以产生差分值信息140a。压缩装置100通过例如LZ77算法对差分值信息140a进行压缩，生成压缩数据。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013211643A Compression method, restoration method, and information processing device and program 审中-公开
标题翻译：压缩方法，恢复方法和信息处理设备和程序
公开(公告)号：JP2013211643A
公开(公告)日：2013-10-10
申请号：JP2012079511
申请日：2012-03-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： H03M7/40
摘要： PROBLEM TO BE SOLVED: To compress data having short repetitions and long repetitions coexisting therein more efficiently than ever.SOLUTION: When compressing a character string like data_compression_com_decompression, a compression method works in such a way that for _com, because _co in it matches _co in _compression, and because _co and initial letter string m=0 and a match length l=1, it is encoded as _co(0, 1). Also, for compression in decompression, an initial letter p is set without using the immediately preceding com, so that compression having comp in common is identified as the most recent occurrence position, and because an initial letter string length m=1 and a match length l=7, it is encoded as com(1,7)p.
摘要翻译：要解决的问题：压缩具有重复次数和重复次数的数据比以前更有效地解压缩。解压缩：当压缩像data_compression_com_decompression这样的字符串时，压缩方法的工作方式是对于_com，因为_com中的_co与_co匹配 _compression，因为_co和初始字母串m = 0，匹配长度l = 1，它被编码为_co（0,1）。另外，对于解压缩中的压缩，初始字母p被设定为不使用紧接在前的com，因此具有共同的压缩被识别为最近的发生位置，并且由于初始字母长度m = 1和匹配长度 l = 7，它被编码为com（1,7）p。

4. 发明专利

JP2004094661A Data backup service method and service device 审中-公开
公开(公告)号：JP2004094661A
公开(公告)日：2004-03-25
申请号：JP2002255792
申请日：2002-08-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： G06Q30/06 , G06F12/00 , G06Q50/00 , G06Q50/10 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To provide service at low cost by utilizing a writing space of a storage medium of a computer connected by a network. SOLUTION: Storage of data of a copy of original data of a customer A into the storage medium having the writing space provided from a different customer B is requested correspondingly to provision of the writing space of the storage medium from the customer A in 1, the copy data is collected from the customer B side via the network and is sent to the customer A side when the original data is broken in 2, and a consideration for data restoration is received from the customer A side in 3. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2013197850A Encoding method, encoding device, and computer program 有权
标题翻译：编码方法，编码设备和计算机程序
公开(公告)号：JP2013197850A
公开(公告)日：2013-09-30
申请号：JP2012062475
申请日：2012-03-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： H03M7/40
摘要： PROBLEM TO BE SOLVED: To provide an encoding method, an encoding device and a computer program which achieve high speed detection of duplicate character strings in an encoding processing.SOLUTION: A list creation section 14 creates a recent appearance position list of individual prefixes for finding each of a plurality of recent appearance positions of the prefixes having different byte lengths. A list integration section 15 creates an integration list in which a recent appearance position of a longer prefix and a length of this prefix are associatedly stored. When detecting duplicate character strings, a detection section 16 retroactively finds a longer matching by using the recent appearance position as a linked list. At this time, the detection section 16 confirms the prefix lengths stored in the integration list and retroactively detects duplicate character strings by using the linked list only in the case of a prefix having the longest byte length.
摘要翻译：要解决的问题：提供一种在编码处理中实现重复字符串的高速检测的编码方法，编码装置和计算机程序。解决方案：列表创建部分14创建用于查找的各个前缀的最近出现位置列表前缀的多个最近出现位置中的每一个具有不同的字节长度。列表集成部分15创建其中相关联地存储较长前缀和该前缀的长度的最近出现位置的集成列表。当检测到重复的字符串时，检测部分16通过使用最近的出现位置作为链接列表追溯地发现更长的匹配。此时，检测部分16确认存储在集成列表中的前缀长度，并且仅在具有最长字节长度的前缀的情况下通过使用链接列表追溯地检测重复字符串。

6. 发明专利

JP2005217842A Data compression method, data restoration method, and program thereof 审中-公开
标题翻译：数据压缩方法，数据恢复方法及其程序
公开(公告)号：JP2005217842A
公开(公告)日：2005-08-11
申请号：JP2004022822
申请日：2004-01-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： H03M7/40 , H04L9/00 , H04L9/06 , H04L9/36
CPC分类号： H04L9/0656 , H04L2209/30
摘要： PROBLEM TO BE SOLVED: To enhance the confidentiality of data compression in connection with a data compression method for generating a compressed data string from a data string to be compressed.
SOLUTION: A scrambled value is provided (14) to the head of the data string to be compressed and the data are compressed (16) by using the dynamic variable length coding. The compressed data with high randomness can be produced and object data can simply be randomized. That is, it is not required to share a common initial value at both the production side and the restoration side and the processing is easy, and this method is effective to reduce the processing time.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提高数据压缩的机密性，用于从要压缩的数据串生成压缩数据串的数据压缩方法。解决方案：通过使用动态可变长度编码将加扰值（14）提供（14）到要压缩的数据串的头部，并且数据被压缩（16）。可以生成具有高随机性的压缩数据，并且对象数据可以简单地随机化。也就是说，不需要在生产侧和恢复侧共享共同的初始值，并且处理容易，并且该方法有效地减少处理时间。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2008217809A Structured document converting device 有权
标题翻译：结构化文件转换设备
公开(公告)号：JP2008217809A
公开(公告)日：2008-09-18
申请号：JP2008095971
申请日：2008-04-02
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YOSHIDA SHIGERU , YAHAGI HIRONORI , ITANI NOBUKO
IPC分类号： G06F17/21
摘要： PROBLEM TO BE SOLVED: To achieve both the reduction of memory usage and the improvement in a process speed when processing a structured document by reducing resources required for operations of the structured document. SOLUTION: A processing part reads the distinction information for distinguishing the structured document into key components subject to data processing and non-key components not subject to such data processing, creates new components for the non-key component to which predetermined tag names and predetermined attribute names are added, creates a tag name character string including the tag names of the non-key components connecting the tag names of the non-key components interposing delimiters therebetween, describes the new components as attribute values corresponding to the predetermined attribute names, creates a content character string including the contents of the non-key components connecting the contents of the non-key components interposing delimiters therebetween, describes it as the contents of the new components, and describes the key components in the converted structured document as it is. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过减少结构化文档的操作所需的资源来实现处理结构化文档时减少内存使用和处理速度的提高。解决方案：处理部分读取用于将结构化文档区分为受数据处理的关键组件和不受这种数据处理的非关键组件的区别信息，为预定标签名称的非关键组件创建新组件并添加预定的属性名称，创建包括连接其间插入分隔符的非密钥分量的标签名称的非密钥分量的标签名称的标签名字符串，将新组件描述为与预定属性名称相对应的属性值，创建一个内容字符串，其中包括连接其间插入分隔符的非关键组件的内容的非关键组件的内容，将其描述为新组件的内容，并描述转换的结构化文档中的关键组件，因为它是。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2014017629A Reconstruction program, compression program, reconstruction apparatus, compression apparatus, reconstruction method and compression method 有权
标题翻译：重建计划，压缩程序，重建装置，压缩装置，重建方法和压缩方法
公开(公告)号：JP2014017629A
公开(公告)日：2014-01-30
申请号：JP2012153060
申请日：2012-07-06
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： H03M7/40 , H04N19/00
摘要： PROBLEM TO BE SOLVED: To implement fast data reconstruction by effectively utilizing a register width of a processor.SOLUTION: Compressed data cdA indicates the position of reference data that is the same as original data and is to be used in reconstructing the original data. The compressed data cdA also indicates, out of the reference data, the number of data to be segmentally acquired in a register width, and a fractional data length not to be segmentally acquired in the register width but to be sequentially acquired by the byte. An information processing apparatus 100 acquires the reference data starting at the position indicated by the compressed data cdA, segmentally in that number of data of the register width which is indicated by the compressed data cdA and in that fractional data length of data in bytes which is indicated by the compressed data cdA. The information processing apparatus 100 next saves the acquired reference data as the original data.
摘要翻译：要解决的问题：通过有效利用处理器的寄存器宽度来实现快速数据重建。解决方案：压缩数据cdA表示与原始数据相同的参考数据的位置，并用于重建原始数据。压缩数据cdA还在参考数据中指示要在寄存器宽度中被分段获取的数据的数量，以及在该寄存器宽度中不被片段地获取的数据长度，而是由该字节顺序地获取。信息处理装置100从由压缩数据cdA表示的位置开始，以压缩数据cdA表示的寄存器宽度的数据数，以字节为单位的数据的分数数据长度，以由压缩数据cdA表示。信息处理装置100接下来将获取的参考数据保存为原始数据。

9. 发明专利

JP2012003375A Data compression program and method and data restoration program and method 有权
标题翻译：数据压缩程序和方法和数据恢复程序和方法
公开(公告)号：JP2012003375A
公开(公告)日：2012-01-05
申请号：JP2010135920
申请日：2010-06-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： G06F9/318 , G06F9/30 , H03M7/30
摘要： PROBLEM TO BE SOLVED: To compress data to be compressed with higher compressibility in lossless data compression processing.SOLUTION: A data compressor 1 generates compression data by executing the processing of detecting a repetition part in which a bit value matches from the data column of the inputted data to be compressed, obtaining a relative position and a matching length, and encoding the repetition part using the relative position and the matching length, and the processing of analyzing the sectioning position of an instruction code for parts other than the repetition part from the data to be compressed, separating the sectioned instruction code into an operation code and an operand by bit unit, and encoding the separated operation code and the operand respectively.
摘要翻译：要解决的问题：在无损数据压缩处理中以更高的压缩性压缩要压缩的数据。解决方案：数据压缩器1通过执行检测与要压缩的输入数据的数据列匹配的位值的重复部分的处理，获得相对位置和匹配长度来生成压缩数据，并且编码使用相对位置和匹配长度的重复部分以及从要压缩的数据分析除了重复部分之外的部分的指令代码的分割位置的处理，将分割的指令代码分离为操作代码和操作数并分别对分离的操作码和操作数进行编码。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2007264841A Data secrecy method, secret data restoration method, data secrecy program, secret data restoration program, and information processing apparatus 有权
标题翻译：数据分析方法，秘密数据恢复方法，数据分析程序，秘密数据恢复程序和信息处理设备
公开(公告)号：JP2007264841A
公开(公告)日：2007-10-11
申请号：JP2006086633
申请日：2006-03-27
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITANI NOBUKO
IPC分类号： G06F21/24 , G09C1/00 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To implement a simplified data secrecy function for an environment disabling direct restoration of original data without any password input. SOLUTION: A hash value 32 is generated from original data 10 and a password 20, and the hash value 32 is added to coded data 31 that is a compressed form of the original data 10 to produce secret data 30. The generation of the hash value 32 using both password 20 and original data 10 can make it difficult to edit the secret data 30 for modifying the password 20, to thereby simply enhance the secrecy of the secret data 30. As for restoration, a hash value generated from an input password and the original data 10 restored in a secure environment is matched against the hash value 32 added to the secret data 30, and the original data 10 is output only if they match. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为没有任何密码输入的原始数据直接恢复的环境实现简化的数据保密功能。解决方案：从原始数据10和密码20生成哈希值32，并将散列值32加到作为原始数据10的压缩形式的编码数据31，以产生秘密数据30。使用密码20和原始数据10的哈希值32可能难以编辑用于修改密码20的秘密数据30，从而简单地增强秘密数据30的保密性。对于恢复，从输入密码和在安全环境中恢复的原始数据10与添加到秘密数据30的散列值32匹配，并且仅当原始数据匹配时才输出原始数据10。版权所有（C）2008，JPO＆INPIT

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