DE69518022D1 - Vorrichtung und Verfahren für Lempel Ziv Datenkompression mit Verwaltung von mehreren Wörterbüchern in Assoziativspeichern - Google Patents

Vorrichtung und Verfahren für Lempel Ziv Datenkompression mit Verwaltung von mehreren Wörterbüchern in Assoziativspeichern

Info

Publication number
DE69518022D1
DE69518022D1 DE69518022T DE69518022T DE69518022D1 DE 69518022 D1 DE69518022 D1 DE 69518022D1 DE 69518022 T DE69518022 T DE 69518022T DE 69518022 T DE69518022 T DE 69518022T DE 69518022 D1 DE69518022 D1 DE 69518022D1
Authority
DE
Germany
Prior art keywords
management
data compression
associative memories
lempel ziv
several dictionaries
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
DE69518022T
Other languages
English (en)
Other versions
DE69518022T2 (de
Inventor
Airell R Clark
Jeffrey P Tobin
Gadiel Seroussi
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69518022D1 publication Critical patent/DE69518022D1/de
Publication of DE69518022T2 publication Critical patent/DE69518022T2/de
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
    • H03M7/3082—Vector coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • 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

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)
DE69518022T 1994-02-07 1995-01-20 Vorrichtung und Verfahren für Lempel Ziv Datenkompression mit Verwaltung von mehreren Wörterbüchern in Assoziativspeichern Expired - Lifetime DE69518022T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/192,878 US5455576A (en) 1992-12-23 1994-02-07 Apparatus and methods for Lempel Ziv data compression with improved management of multiple dictionaries in content addressable memory

Publications (2)

Publication Number Publication Date
DE69518022D1 true DE69518022D1 (de) 2000-08-24
DE69518022T2 DE69518022T2 (de) 2000-12-21

Family

ID=22711395

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69518022T Expired - Lifetime DE69518022T2 (de) 1994-02-07 1995-01-20 Vorrichtung und Verfahren für Lempel Ziv Datenkompression mit Verwaltung von mehreren Wörterbüchern in Assoziativspeichern

Country Status (4)

Country Link
US (1) US5455576A (de)
EP (1) EP0666651B1 (de)
JP (1) JP3309028B2 (de)
DE (1) DE69518022T2 (de)

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Also Published As

Publication number Publication date
JP3309028B2 (ja) 2002-07-29
US5455576A (en) 1995-10-03
DE69518022T2 (de) 2000-12-21
EP0666651A3 (de) 1996-05-22
EP0666651A2 (de) 1995-08-09
JPH07273667A (ja) 1995-10-20
EP0666651B1 (de) 2000-07-19

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Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE