DE3742142C2 - - Google Patents

Info

Publication number
DE3742142C2
DE3742142C2 DE3742142A DE3742142A DE3742142C2 DE 3742142 C2 DE3742142 C2 DE 3742142C2 DE 3742142 A DE3742142 A DE 3742142A DE 3742142 A DE3742142 A DE 3742142A DE 3742142 C2 DE3742142 C2 DE 3742142C2
Authority
DE
Germany
Prior art keywords
data
parts
bytes
byte
data sequence
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE3742142A
Other languages
German (de)
English (en)
Other versions
DE3742142A1 (de
Inventor
Tokuhiro Kanagawa Jp Tsukiyama
Yasunori Odawara Jp Sagara
Kazumi Kanagawa Jp Miyazawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3742142A1 publication Critical patent/DE3742142A1/de
Application granted granted Critical
Publication of DE3742142C2 publication Critical patent/DE3742142C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE19873742142 1986-12-12 1987-12-11 Verfahren und vorrichtung zur kompression und rekonstruktion von datenfolgen Granted DE3742142A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61294821A JPH0815262B2 (ja) 1986-12-12 1986-12-12 データ圧縮復元処理装置

Publications (2)

Publication Number Publication Date
DE3742142A1 DE3742142A1 (de) 1988-06-23
DE3742142C2 true DE3742142C2 (enExample) 1989-08-31

Family

ID=17812686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873742142 Granted DE3742142A1 (de) 1986-12-12 1987-12-11 Verfahren und vorrichtung zur kompression und rekonstruktion von datenfolgen

Country Status (3)

Country Link
US (1) US4866440A (enExample)
JP (1) JPH0815262B2 (enExample)
DE (1) DE3742142A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0815262B2 (ja) 1986-12-12 1996-02-14 株式会社日立製作所 データ圧縮復元処理装置
US5532694A (en) * 1989-01-13 1996-07-02 Stac Electronics, Inc. Data compression apparatus and method using matching string searching and Huffman encoding
US5146221A (en) * 1989-01-13 1992-09-08 Stac, Inc. Data compression apparatus and method
US4971407A (en) * 1989-08-09 1990-11-20 Unisys Corp. Two stage run and string data compressor providing doubly compressed output
US5313604A (en) * 1990-11-13 1994-05-17 Hewlett-Packard Company Method for locating compressed data in a computed memory back up device including steps of refining estimater location
JPH0629861A (ja) * 1990-12-31 1994-02-04 Internatl Business Mach Corp <Ibm> データ圧縮方法
WO1994027374A1 (en) * 1993-05-13 1994-11-24 Apple Computer, Inc. Method and apparatus for efficient compression of data having redundant characteristics
FR2709892B1 (fr) * 1993-09-09 1995-10-13 Alcatel Radiotelephone Procédé de compression et de décompression d'un flux de valeurs numériques hexadécimales codées en ASCII.
JPH09162748A (ja) * 1995-12-01 1997-06-20 Fujitsu Ltd データ符号化方法、データ復号方法、データ圧縮装置、データ復元装置、及びデータ圧縮・復元システム
JP4187345B2 (ja) * 1999-03-29 2008-11-26 株式会社アドバンテスト 圧縮データ復元装置、それを備えた半導体検査装置、及び、データ圧縮復元方法
RU2004113857A (ru) * 2004-07-19 2005-12-20 Николай Михайлович Алексеев (RU) Способ сжатия информации, представленной в электронной форме
US8077974B2 (en) 2006-07-28 2011-12-13 Hewlett-Packard Development Company, L.P. Compact stylus-based input technique for indic scripts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625527A1 (de) * 1976-06-05 1978-03-30 Licentia Gmbh Verfahren zur kompression redundanter digitaler quellsignale
US4814746A (en) * 1983-06-01 1989-03-21 International Business Machines Corporation Data compression method
US4558302A (en) * 1983-06-20 1985-12-10 Sperry Corporation High speed data compression and decompression apparatus and method
JPH0828053B2 (ja) * 1983-08-08 1996-03-21 株式会社日立製作所 データ記録方法
US4542515A (en) * 1983-11-14 1985-09-17 The United States Of America As Represented By The Secretary Of The Army Multilevel mate pair code compressor for codes expanded by the process of butting
JPS60124126A (ja) * 1983-12-08 1985-07-03 Fujitsu Ltd コ−ド圧縮方式
GB2172127B (en) * 1985-03-06 1988-10-12 Ferranti Plc Data compression system
JPH0815262B2 (ja) * 1986-12-12 1996-02-14 株式会社日立製作所 データ圧縮復元処理装置

Also Published As

Publication number Publication date
JPH0815262B2 (ja) 1996-02-14
JPS63148717A (ja) 1988-06-21
DE3742142A1 (de) 1988-06-23
US4866440A (en) 1989-09-12

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition