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1. 发明授权

US5717393A Apparatus for data compression and data decompression 失效
标题翻译：数据压缩和数据解压缩装置
公开(公告)号：US5717393A
公开(公告)日：1998-02-10
申请号：US684045
申请日：1996-07-19
申请人： Yasuhiko Nakano , Kimitaka Murashita , Yoshiyuki Okada , Shigeru Yoshida , Masanaga Tokuyo
发明人： Yasuhiko Nakano , Kimitaka Murashita , Yoshiyuki Okada , Shigeru Yoshida , Masanaga Tokuyo
IPC分类号： H03M7/40 , G06T9/00 , H03M7/30
CPC分类号： H03M7/30 , G06T9/005
摘要： The present invention provides a plurality of code tables such as a high-usage code table and a low-usage code table in an entropy coding unit, and transforms a block-sorted last character string from a block-sorting transforming unit into an MTF code string in an MTF transforming unit. The entropy coding unit switches the code tables at a discontinuous part of the MTF code string to perform entropy coding. In addition, the present invention stores reference lists, whose number is equal to the number of kinds of used characters, in a reference list memory. The MTF transforming unit selects a reference list corresponding to a first character of the block-sorted character string to perform an MTF transformation.
摘要翻译：本发明在熵编码单元中提供诸如高使用码表和低使用码表的多个码表，并将块排序变换单元的块排序最后一个字符串变换为MTF码字符串在MTF转换单元。熵编码单元在MTF代码串的不连续部分切换代码表以执行熵编码。此外，本发明将引用列表的数量等于所使用字符的种类的数量存储在参考列表存储器中。 MTF变换单元选择与块排序字符串的第一个字符相对应的参考列表，以执行MTF变换。

2. 发明授权

US5138673A Data compression system 失效
标题翻译：数据压缩系统
公开(公告)号：US5138673A
公开(公告)日：1992-08-11
申请号：US565679
申请日：1990-08-09
申请人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba , Masahiro Mori
发明人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba , Masahiro Mori
IPC分类号： H04N1/413 , H04N1/417
CPC分类号： H04N1/413 , H04N1/4175
摘要： A data compression system is provided having a fixed length coding unit provided before a universal coding unit. The fixed length coding unit detects mode classifications and mode conditions of changing picture elements in a mode detecting unit. Then, the mode classifications and mode conditions are converted to fixed length code words in a code transforming unit representative of, e.g., MH, MR or MMR-type codes. Thereafter, the fixed length code words are predictively coded by the universal coding unit to output compressed data. The present invention is applicable to both character data and picture data. Preferably, the picture data is preprocessed by the fixed length coding unit before both of the character data and picture data are predictively coded by the universal coding unit.

3. 发明授权

US5150119A Data compression method and apparatus 失效
标题翻译：数据压缩方法和设备
公开(公告)号：US5150119A
公开(公告)日：1992-09-22
申请号：US744443
申请日：1991-08-13
申请人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hirotaka Chiba
发明人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hirotaka Chiba
IPC分类号： G06T9/00 , H03M7/30
CPC分类号： G06T9/005 , H03M7/3088
摘要： In a data compression method based on an LZW coding procedure, a list which defines a sequence of tracing partial strings registered in a dictionary is modified so that a position of a first registered partial string among the registered partial strings in a tree structure of registered partial strings is interchanged with a position of a second registered partial string among the registered partial strings in a state where the first and second registered partial strings extend from an identical node of the tree structure.

4. 发明授权

US5136289A Dictionary searching system 失效
标题翻译：字典搜索系统
公开(公告)号：US5136289A
公开(公告)日：1992-08-04
申请号：US740912
申请日：1991-08-06
申请人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba
发明人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba
IPC分类号： G06F17/27 , H03M7/30
CPC分类号： G06F17/2735 , H03M7/3088
摘要： A dictionary searching system retrieves a character string which is described by input reference number and characters from a plurality of mutually different character strings which are registered in a dictionary in correspondence with reference numbers assigned to the character strings. The dictionary searching system includes a dictionary which is made up of an index part for storing in correspondence with the reference numbers a reference number which is assigned to one of character strings which are obtained by adding a character to the character string which is assigned the input reference number and the character which is added to the one of the character strings and a list part for storing in correspondence with the reference numbers a reference number which is assigned to one of character strings having a last character which differs from that of the character string which is assigned the input reference number and the character which is added to the one of the character strings, a reading part for initially reading information from the index part by specifying the input reference number and thereafter reading information from the list part by specifying the reference number which is read from the dictionary, a detecting part for detecting each character which matches the input characters out of characters read from the dictionary and for outputting a result of this detection as a retrieval result, and a deciding part for deciding whether or not a reference number is included in an output of the dictionary and for outputting a result of this detection as a retrieval result, where the reading part, the detecting part and the deciding part operate independently of each other.

5. 发明授权

US5673042A Method of and an apparatus for compressing/decompressing data 失效
标题翻译：用于压缩/解压缩数据的方法和装置
公开(公告)号：US5673042A
公开(公告)日：1997-09-30
申请号：US405209
申请日：1995-03-16
申请人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hironori Yahagi
发明人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hironori Yahagi
IPC分类号： G06F5/00 , G06F17/30 , G06T9/00 , H03M7/30 , H03M7/46 , H03H7/00
CPC分类号： G06F17/30985 , G06T9/005 , H03M7/3086
摘要： The present invention relates to a method of and an apparatus for compressing/decompressing data, to improve the compression ratio of sliding-dictionary-type Ziv-Lempel codes. A sliding-dictionary-type data compression method finds a matching character string in a coding character string and in a coded character string stored in a dictionary 101. According to the length of the matching character string, the method chooses a raw data mode that codes the matching character string that must consist of a single character as it is, or a reproduction mode that codes the position and length in the dictionary 101 of the matching character string. The method allocates consecutive numbers to different codes to be prepared under the raw data mode and reproduction mode. The method relates any code prepared under one of the raw data mode and reproduction mode to a corresponding one of the consecutive numbers, codes the number according to a code book, and rearranges the code book to shorten the length of the code of the number.
摘要翻译：本发明涉及一种用于压缩/解压缩数据的方法和装置，以提高滑动词典型Ziv-Lempel码的压缩率。滑动字典型数据压缩方法在编码字符串和字典101中存储的编码字符串中找到匹配的字符串。根据匹配字符串的长度，该方法选择编码的原始数据模式必须由单个字符组成的匹配字符串，或者编码匹配字符串的字典101中的位置和长度的再现模式。该方法将连续的数字分配给在原始数据模式和再现模式下准备的不同的代码。该方法将在原始数据模式和再现模式之一下准备的任何代码与相应的一个连续数字相关联，根据代码簿对该编号进行编码，并重新排列代码簿以缩短编号的代码长度。

6. 发明授权

US5254990A Method and apparatus for compression and decompression of data 失效
标题翻译：压缩和解压缩数据的方法和装置
公开(公告)号：US5254990A
公开(公告)日：1993-10-19
申请号：US3876
申请日：1993-01-11
申请人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba
发明人： Shigeru Yoshida , Yasuhiko Nakano , Yoshiyuki Okada , Hirotaka Chiba
IPC分类号： G06T9/00 , H03M7/30
CPC分类号： H03M7/3088 , G06T9/005
摘要： In a data compressing and decompressing apparatus, having improved efficiency and enhanced compression ratio whereby character sequence of received data is coded and decoded by referring to a dictionary related to the last character of the immediately preceding character sequence, and a character sequence which is one character extended character sequence of the coded and decompressed character sequence is registered in the dictionary in relation with the last character of the immediately preceding character sequence so that the compression ratio of the coding of data is increased.
摘要翻译：在数据压缩和解压缩装置中，通过参考与前一个字符序列的最后一个字符有关的字典和一个字符的字符序列，提高了效率和增强的压缩比，从而对接收到的数据的字符序列进行编码和解码编码和解压缩字符序列的扩展字符序列与前一字符序列的最后一个字符相关地登记在字典中，从而数据编码的压缩比增加。

7. 发明授权

US06701061B2 Endless video recording apparatus 有权
标题翻译：无尽视频录像设备
公开(公告)号：US06701061B2
公开(公告)日：2004-03-02
申请号：US10144359
申请日：2002-05-14
申请人： Akira Karasudani , Yasuhiko Nakano , Yoshiyuki Okada , Hideo Kato
发明人： Akira Karasudani , Yasuhiko Nakano , Yoshiyuki Okada , Hideo Kato
IPC分类号： H04N700
CPC分类号： H04N21/4147 , G11B27/032 , G11B27/034 , G11B27/036 , G11B27/10 , G11B27/105 , G11B27/107 , G11B27/11 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/41 , G11B2220/90 , H04N5/781 , H04N5/85 , H04N9/8042
摘要： An apparatus for recording digital video images in an endless fashion. The apparatus includes (a) a video data recording mechanism, (b) a mark setting mechanism, (c) a mark management mechanism, (d) a mark erasure mechanism, and (e) a playback allowing area setting mechanism. Upon playback of endlessly recorded video images, seamless video playback can be achieved without suffering from a disorder of video images caused by playback of destroyed video data.
摘要翻译：用于以无限方式记录数字视频图像的装置。该设备包括（a）视频数据记录机构，（b）标记设置机构，（c）标记管理机制，（d）标记擦除机制，和（e）播放允许区域设置机制。在播放无限记录的视频图像时，可以实现无缝视频播放，而不会遭受由毁坏的视频数据的播放引起的视频图像的混乱。

8. 发明授权

US06378054B1 Data backup device and method for use with a computer, and computer-readable recording medium having data backup program recorded thereon 失效
标题翻译：用于计算机的数据备份设备和方法，以及其上记录有数据备份程序的计算机可读记录介质
公开(公告)号：US06378054B1
公开(公告)日：2002-04-23
申请号：US09047361
申请日：1998-03-25
申请人： Akira Karasudani , Yasuhiko Nakano , Yoshiyuki Okada
发明人： Akira Karasudani , Yasuhiko Nakano , Yoshiyuki Okada
IPC分类号： G06F1216
CPC分类号： G06F11/1451 , Y10S707/99953 , Y10S707/99955
摘要： A technique related to a data backup for a computer. There are provided a selection section, an archive file creation section, and a backup processing section. The selection section selects data files satisfying given conditions from among data files stored in a first storage section. The archive file creation section creates N (N is a natural number) archive files by grouping the plurality of data files selected by the selection section and which repeats the archive file creation processing M (M is a natural number) times. The backup processing section stores the archive files created by the archive file creation section into a second storage section. The technique enables efficient copying of a data file in a short period of time.
摘要翻译：与计算机的数据备份相关的技术。提供了选择部分，归档文件创建部分和备份处理部分。选择部分从存储在第一存储部分中的数据文件中选择满足给定条件的数据文件。归档文件创建部分通过对由选择部分选择的多个数据文件进行分组并且重复存档文件创建处理M（M是自然数）次来创建N（N是自然数）归档文件。备份处理部将由归档文件创建部创建的归档文件存储到第二存储部。该技术能够在短时间内有效地复制数据文件。

9. 发明授权

US07433574B2 Audio-video stream data recording, replaying, and editing system 有权
标题翻译：音视频流数据记录，重放和编辑系统
公开(公告)号：US07433574B2
公开(公告)日：2008-10-07
申请号：US10109323
申请日：2002-03-29
申请人： Yasuhiko Nakano , Yukihiro Abiko , Yoshiyuki Okada
发明人： Yasuhiko Nakano , Yukihiro Abiko , Yoshiyuki Okada
IPC分类号： H04N9/00 , H04N5/93 , H04N5/91 , H04N7/087 , H04N5/00 , G11B3/64 , G06F3/00
CPC分类号： G11B27/034 , G11B27/10 , G11B27/105 , G11B27/11 , G11B2220/20 , H04N9/8042 , H04N9/8063
摘要： A stream data recording apparatus records stream data in such a manner that the head of each video coding unit and the head of a series of audio coding unit corresponding to each video coding unit contained in the stream data coincide with the heads of access units of a recording medium. Utilizing the structure of stream data so recorded and the random accessibility of the recording medium, a stream data replaying apparatus and a stream data editing apparatus replay or edit the stream data freely on a video coding unit basis. By replacing stream data recorded on the recording medium on a video coding unit basis, the recording apparatus realizes endless recording that does not require complex file manipulation.
摘要翻译：流数据记录装置以如下方式记录流数据：每个视频编码单元的头部和与流数据中包含的每个视频编码单元相对应的一系列音频编码单元的头部与一个记录介质。利用如此记录的流数据的结构和记录介质的随机可访问性，流数据重放装置和流数据编辑装置在视频编码单元的基础上自由地播放或编辑流数据。通过在视频编码单元的基础上替换记录在记录介质上的流数据，记录装置实现不需要复杂文件操作的无限记录。

10. 发明授权

US06581135B2 Information storage system for redistributing information to information storage devices when a structure of the information storage devices is changed 失效
标题翻译：信息存储系统，用于当信息存储装置的结构发生变化时将信息重新分配给信息存储装置
公开(公告)号：US06581135B2
公开(公告)日：2003-06-17
申请号：US09314384
申请日：1999-05-19
申请人： Yasuhiko Nakano , Yoshiyuki Okada , Akira Karasudani
发明人： Yasuhiko Nakano , Yoshiyuki Okada , Akira Karasudani
IPC分类号： G06F1200
CPC分类号： G06F3/0607 , G06F3/0632 , G06F3/064 , G06F3/0689 , G06F11/1096
摘要： An information storage device stores data evenly in each of a plurality of external information-storage devices even if the number of external information-storage devices provided in the information storage system is changed. A division processing unit divides the information to be stored in the information storage devices and distributes the divided information to the information storage devices. A division control unit controls the division processing unit so as to divide the information in accordance with a number of the information storage devices. When the number of the information storage devices is changed, the division control unit controls the division processing unit so that the information stored in the information storage devices is divided by a dividing method suitable for the number of the information storage devices after being changed.
摘要翻译：即使设置在信息存储系统中的外部信息存储装置的数量改变，信息存储装置也可以将数据均匀地存储在多个外部信息存储装置的每一个中。分割处理单元将要存储在信息存储装置中的信息分割，并将分割的信息分配给信息存储装置。分割控制单元控制分割处理单元，以便根据信息存储装置的数量划分信息。当信息存储装置的数量改变时，分割控制单元控制分割处理单元，使得存储在信息存储装置中的信息被划分为适于改变之后的信息存储装置的编号的分割方法。

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