JPH0815262B2 - データ圧縮復元処理装置 - Google Patents

データ圧縮復元処理装置

Info

Publication number
JPH0815262B2
JPH0815262B2 JP61294821A JP29482186A JPH0815262B2 JP H0815262 B2 JPH0815262 B2 JP H0815262B2 JP 61294821 A JP61294821 A JP 61294821A JP 29482186 A JP29482186 A JP 29482186A JP H0815262 B2 JPH0815262 B2 JP H0815262B2
Authority
JP
Japan
Prior art keywords
data
compressed
compression
string
continuous
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 - Lifetime
Application number
JP61294821A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63148717A (ja
Inventor
徳広 築山
康則 相良
和美 宮沢
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
Priority to JP61294821A priority Critical patent/JPH0815262B2/ja
Priority to US07/129,185 priority patent/US4866440A/en
Priority to DE19873742142 priority patent/DE3742142A1/de
Publication of JPS63148717A publication Critical patent/JPS63148717A/ja
Publication of JPH0815262B2 publication Critical patent/JPH0815262B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
JP61294821A 1986-12-12 1986-12-12 データ圧縮復元処理装置 Expired - Lifetime JPH0815262B2 (ja)

Priority Applications (3)

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
US07/129,185 US4866440A (en) 1986-12-12 1987-12-07 Method for compressing and restoring data series and apparatus for realizing same
DE19873742142 DE3742142A1 (de) 1986-12-12 1987-12-11 Verfahren und vorrichtung zur kompression und rekonstruktion von datenfolgen

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
JPS63148717A JPS63148717A (ja) 1988-06-21
JPH0815262B2 true JPH0815262B2 (ja) 1996-02-14

Family

ID=17812686

Family Applications (1)

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

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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866440A (en) 1986-12-12 1989-09-12 Hitachi, Ltd. Method for compressing and restoring data series and apparatus for realizing same

Family Cites Families (7)

* 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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866440A (en) 1986-12-12 1989-09-12 Hitachi, Ltd. Method for compressing and restoring data series and apparatus for realizing same

Also Published As

Publication number Publication date
JPS63148717A (ja) 1988-06-21
DE3742142A1 (de) 1988-06-23
DE3742142C2 (enExample) 1989-08-31
US4866440A (en) 1989-09-12

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Legal Events

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EXPY Cancellation because of completion of term