DE69224782D1 - Erhöhung der Leistungsfähigkeit beim Rücksetzten von Wörterbüchern für Datenkompressionsanwendungen - Google Patents

Erhöhung der Leistungsfähigkeit beim Rücksetzten von Wörterbüchern für Datenkompressionsanwendungen

Info

Publication number
DE69224782D1
DE69224782D1 DE69224782T DE69224782T DE69224782D1 DE 69224782 D1 DE69224782 D1 DE 69224782D1 DE 69224782 T DE69224782 T DE 69224782T DE 69224782 T DE69224782 T DE 69224782T DE 69224782 D1 DE69224782 D1 DE 69224782D1
Authority
DE
Germany
Prior art keywords
dictionaries
resetting
data compression
increased performance
compression applications
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
DE69224782T
Other languages
English (en)
Other versions
DE69224782T2 (de
Inventor
Carl B Lantz
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 DE69224782D1 publication Critical patent/DE69224782D1/de
Publication of DE69224782T2 publication Critical patent/DE69224782T2/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
    • H03M7/3084—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; 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
DE69224782T 1991-09-25 1992-09-22 Erhöhung der Leistungsfähigkeit beim Rücksetzten von Wörterbüchern für Datenkompressionsanwendungen Expired - Lifetime DE69224782T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/766,475 US5175543A (en) 1991-09-25 1991-09-25 Dictionary reset performance enhancement for data compression applications

Publications (2)

Publication Number Publication Date
DE69224782D1 true DE69224782D1 (de) 1998-04-23
DE69224782T2 DE69224782T2 (de) 1998-07-09

Family

ID=25076532

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224782T Expired - Lifetime DE69224782T2 (de) 1991-09-25 1992-09-22 Erhöhung der Leistungsfähigkeit beim Rücksetzten von Wörterbüchern für Datenkompressionsanwendungen

Country Status (5)

Country Link
US (1) US5175543A (de)
EP (1) EP0534713B1 (de)
JP (1) JP3262602B2 (de)
DE (1) DE69224782T2 (de)
HK (1) HK1012135A1 (de)

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US5373290A (en) * 1991-09-25 1994-12-13 Hewlett-Packard Corporation Apparatus and method for managing multiple dictionaries in content addressable memory based data compression
US5379036A (en) * 1992-04-01 1995-01-03 Storer; James A. Method and apparatus for data compression
US5424732A (en) * 1992-12-04 1995-06-13 International Business Machines Corporation Transmission compatibility using custom compression method and hardware
US5323155A (en) * 1992-12-04 1994-06-21 International Business Machines Corporation Semi-static data compression/expansion method
US5530645A (en) * 1993-06-30 1996-06-25 Apple Computer, Inc. Composite dictionary compression system
US5524248A (en) * 1993-07-06 1996-06-04 Dell Usa, L.P. Random access memory power management system
US5864716A (en) * 1994-01-07 1999-01-26 Cirrus Logic, Inc. Tagged data compression for parallel port interface
JP3522331B2 (ja) * 1994-04-22 2004-04-26 株式会社セタ データ圧縮方法
US5486826A (en) * 1994-05-19 1996-01-23 Ps Venture 1 Llc Method and apparatus for iterative compression of digital data
US5561421A (en) * 1994-07-28 1996-10-01 International Business Machines Corporation Access method data compression with system-built generic dictionaries
US5686912A (en) * 1995-05-08 1997-11-11 Hewlett-Packard Company Data compression method and apparatus with optimized transitions between compressed and uncompressed modes
US5654703A (en) * 1996-06-17 1997-08-05 Hewlett-Packard Company Parallel data compression and decompression
US6069573A (en) * 1996-06-17 2000-05-30 Hewlett-Packard Company Match and match address signal prioritization in a content addressable memory encoder
US5828324A (en) * 1996-06-17 1998-10-27 Hewlett-Packard Company Match and match address signal generation in a content addressable memory encoder
US5978885A (en) * 1996-06-17 1999-11-02 Hewlett Packard Co. Method and apparatus for self-timing associative data memory
US7898442B1 (en) * 1997-05-30 2011-03-01 International Business Machines Corporation On-line data compression analysis and regulation
US6195024B1 (en) * 1998-12-11 2001-02-27 Realtime Data, Llc Content independent data compression method and system
US6624761B2 (en) 1998-12-11 2003-09-23 Realtime Data, Llc Content independent data compression method and system
JP3578445B2 (ja) * 1999-01-26 2004-10-20 松下電器産業株式会社 データ圧縮記録装置
US6601104B1 (en) 1999-03-11 2003-07-29 Realtime Data Llc System and methods for accelerated data storage and retrieval
US6604158B1 (en) 1999-03-11 2003-08-05 Realtime Data, Llc System and methods for accelerated data storage and retrieval
US20030191876A1 (en) 2000-02-03 2003-10-09 Fallon James J. Data storewidth accelerator
US20010047473A1 (en) 2000-02-03 2001-11-29 Realtime Data, Llc Systems and methods for computer initialization
US7417568B2 (en) 2000-10-03 2008-08-26 Realtime Data Llc System and method for data feed acceleration and encryption
US9143546B2 (en) 2000-10-03 2015-09-22 Realtime Data Llc System and method for data feed acceleration and encryption
US8692695B2 (en) 2000-10-03 2014-04-08 Realtime Data, Llc Methods for encoding and decoding data
US7386046B2 (en) 2001-02-13 2008-06-10 Realtime Data Llc Bandwidth sensitive data compression and decompression
ITMI20022003A1 (it) * 2002-09-20 2004-03-21 Atmel Corp Apparecchio e metodo per la decompressione dinamica di programmi.
US20040139298A1 (en) * 2003-01-09 2004-07-15 International Business Machines Corporation Method and apparatus for instruction compression and decompression in a cache memory
US7079051B2 (en) * 2004-03-18 2006-07-18 James Andrew Storer In-place differential compression

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US4053948A (en) * 1976-06-21 1977-10-11 Ibm Corporation Look aside array invalidation mechanism
US4464650A (en) * 1981-08-10 1984-08-07 Sperry Corporation Apparatus and method for compressing data signals and restoring the compressed data signals
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
US4843389A (en) * 1986-12-04 1989-06-27 International Business Machines Corp. Text compression and expansion method and apparatus
US4876541A (en) * 1987-10-15 1989-10-24 Data Compression Corporation Stem for dynamically compressing and decompressing electronic data
US4847619A (en) * 1987-10-19 1989-07-11 Hewlett-Packard Company Performance-based reset of data compression dictionary
US4899147A (en) * 1988-06-03 1990-02-06 Unisys Corporation Data compression/decompression apparatus with throttle, start-up and backward read controls
US5016009A (en) * 1989-01-13 1991-05-14 Stac, Inc. Data compression apparatus and method
US5003307A (en) * 1989-01-13 1991-03-26 Stac, Inc. Data compression apparatus with shift register search means

Also Published As

Publication number Publication date
DE69224782T2 (de) 1998-07-09
EP0534713B1 (de) 1998-03-18
EP0534713A3 (en) 1993-11-10
JPH05224877A (ja) 1993-09-03
HK1012135A1 (en) 1999-07-23
US5175543A (en) 1992-12-29
JP3262602B2 (ja) 2002-03-04
EP0534713A2 (de) 1993-03-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

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