JPS59231683A - データ圧縮方法 - Google Patents

データ圧縮方法

Info

Publication number
JPS59231683A
JPS59231683A JP59075935A JP7593584A JPS59231683A JP S59231683 A JPS59231683 A JP S59231683A JP 59075935 A JP59075935 A JP 59075935A JP 7593584 A JP7593584 A JP 7593584A JP S59231683 A JPS59231683 A JP S59231683A
Authority
JP
Japan
Prior art keywords
string
dictionary
strings
character
data
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.)
Granted
Application number
JP59075935A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6356726B2 (enExample
Inventor
ビクタ−・ソ−ル・ミラ−
マ−ク・エヌ・ウエグマン
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS59231683A publication Critical patent/JPS59231683A/ja
Publication of JPS6356726B2 publication Critical patent/JPS6356726B2/ja
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
    • H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
    • H03M7/3088—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method employing the use of a dictionary, e.g. LZ78
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Character Discrimination (AREA)
JP59075935A 1983-06-01 1984-04-17 データ圧縮方法 Granted JPS59231683A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49994383A 1983-06-01 1983-06-01
US499943 1983-06-01

Publications (2)

Publication Number Publication Date
JPS59231683A true JPS59231683A (ja) 1984-12-26
JPS6356726B2 JPS6356726B2 (enExample) 1988-11-09

Family

ID=23987404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59075935A Granted JPS59231683A (ja) 1983-06-01 1984-04-17 データ圧縮方法

Country Status (4)

Country Link
EP (1) EP0127815B1 (enExample)
JP (1) JPS59231683A (enExample)
DE (1) DE3485824T2 (enExample)
HK (1) HK7895A (enExample)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63209229A (ja) * 1987-02-25 1988-08-30 Oki Electric Ind Co Ltd デ−タ文圧縮符号化方法
JPS63209228A (ja) * 1987-02-25 1988-08-30 Oki Electric Ind Co Ltd デ−タ圧縮方法
JPH03204235A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データの復号方法
JPH03204232A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データの符号化方法
JPH03204233A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> データ圧縮方法
JPH03204234A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データ復元方法
JPH04500571A (ja) * 1988-07-05 1992-01-30 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー 圧縮された状態におけるデータをエンコードし、デコードし、伝送する方法と装置
JPH07249996A (ja) * 1983-06-20 1995-09-26 Unisys Corp 圧縮符号復元方法及び装置
US5652857A (en) * 1995-03-09 1997-07-29 Fujitsu Limited Disk control apparatus for recording and reproducing compression data to physical device of direct access type

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899147A (en) * 1988-06-03 1990-02-06 Unisys Corporation Data compression/decompression apparatus with throttle, start-up and backward read controls
GB8828796D0 (en) * 1988-12-09 1989-01-18 British Telecomm Data compression
DE3914589A1 (de) * 1989-05-03 1990-11-08 Bosch Gmbh Robert Verfahren zur datenreduktion bei strassennamen
US5142282A (en) * 1990-11-07 1992-08-25 Hewlett-Packard Company Data compression dictionary access minimization
US5455577A (en) * 1993-03-12 1995-10-03 Microsoft Corporation Method and system for data compression
EP0718980A1 (en) * 1994-12-20 1996-06-26 International Business Machines Corporation Data compression method of individual sequences of strings of a data stream based on a dictionary and device for performing the same
RU2190295C2 (ru) * 1996-07-24 2002-09-27 Юнисиз Корпорейшн Система уплотнения и разуплотнения данных с непосредственным обновлением каталога, которое чередуют с поиском строк
EP1895665A3 (en) * 2000-07-25 2008-08-20 Juniper Networks, Inc. System and method for incremental and continuous data compression
US7336682B2 (en) 2000-07-25 2008-02-26 Juniper Networks, Inc. Network architecture and methods for transparent on-line cross-sessional encoding and transport of network communications data
US6856651B2 (en) 2000-07-25 2005-02-15 Peribit Networks, Inc. System and method for incremental and continuous data compression
US10210246B2 (en) 2014-09-26 2019-02-19 Oracle International Corporation Techniques for similarity analysis and data enrichment using knowledge sources

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659349A (en) * 1979-10-02 1981-05-22 Ibm Bit string compaction method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386416A (en) * 1980-06-02 1983-05-31 Mostek Corporation Data compression, encryption, and in-line transmission system
US4558302A (en) * 1983-06-20 1985-12-10 Sperry Corporation High speed data compression and decompression apparatus and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659349A (en) * 1979-10-02 1981-05-22 Ibm Bit string compaction method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07249996A (ja) * 1983-06-20 1995-09-26 Unisys Corp 圧縮符号復元方法及び装置
JPS63209229A (ja) * 1987-02-25 1988-08-30 Oki Electric Ind Co Ltd デ−タ文圧縮符号化方法
JPS63209228A (ja) * 1987-02-25 1988-08-30 Oki Electric Ind Co Ltd デ−タ圧縮方法
JPH04500571A (ja) * 1988-07-05 1992-01-30 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー 圧縮された状態におけるデータをエンコードし、デコードし、伝送する方法と装置
JPH03204235A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データの復号方法
JPH03204232A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データの符号化方法
JPH03204233A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> データ圧縮方法
JPH03204234A (ja) * 1989-12-28 1991-09-05 Internatl Business Mach Corp <Ibm> 圧縮データ復元方法
US5652857A (en) * 1995-03-09 1997-07-29 Fujitsu Limited Disk control apparatus for recording and reproducing compression data to physical device of direct access type

Also Published As

Publication number Publication date
EP0127815A2 (en) 1984-12-12
JPS6356726B2 (enExample) 1988-11-09
DE3485824T2 (de) 1993-03-04
DE3485824D1 (de) 1992-08-27
HK7895A (en) 1995-01-27
EP0127815B1 (en) 1992-07-22
EP0127815A3 (en) 1988-07-27

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