DE3887627T2 - Effizienzabhängige Rücksetzung eines Datenkomprimierungswörterbuches. - Google Patents

Effizienzabhängige Rücksetzung eines Datenkomprimierungswörterbuches.

Info

Publication number
DE3887627T2
DE3887627T2 DE3887627T DE3887627T DE3887627T2 DE 3887627 T2 DE3887627 T2 DE 3887627T2 DE 3887627 T DE3887627 T DE 3887627T DE 3887627 T DE3887627 T DE 3887627T DE 3887627 T2 DE3887627 T2 DE 3887627T2
Authority
DE
Germany
Prior art keywords
efficiency
data compression
compression dictionary
dependent reset
reset
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 - Fee Related
Application number
DE3887627T
Other languages
English (en)
Other versions
DE3887627D1 (de
Inventor
Jeff J Kato
David W Ruska
Maren David J Van
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
Publication of DE3887627D1 publication Critical patent/DE3887627D1/de
Application granted granted Critical
Publication of DE3887627T2 publication Critical patent/DE3887627T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • 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
    • 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
    • H03M7/48—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 alternating with other codes during the code conversion process, e.g. run-length coding being performed only as long as sufficientlylong runs of digits of the same kind are present
DE3887627T 1987-10-19 1988-08-03 Effizienzabhängige Rücksetzung eines Datenkomprimierungswörterbuches. Expired - Fee Related DE3887627T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/109,970 US4847619A (en) 1987-10-19 1987-10-19 Performance-based reset of data compression dictionary

Publications (2)

Publication Number Publication Date
DE3887627D1 DE3887627D1 (de) 1994-03-17
DE3887627T2 true DE3887627T2 (de) 1994-08-18

Family

ID=22330571

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3887627T Expired - Fee Related DE3887627T2 (de) 1987-10-19 1988-08-03 Effizienzabhängige Rücksetzung eines Datenkomprimierungswörterbuches.

Country Status (4)

Country Link
US (1) US4847619A (de)
EP (1) EP0313190B1 (de)
JP (1) JP2785913B2 (de)
DE (1) DE3887627T2 (de)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899148A (en) * 1987-02-25 1990-02-06 Oki Electric Industry Co., Ltd. Data compression method
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
US4929946A (en) * 1989-02-09 1990-05-29 Storage Technology Corporation Adaptive data compression apparatus including run length encoding for a tape drive system
US5124791A (en) * 1989-05-31 1992-06-23 Utah State University Foundation Frame-to-frame compression of vector quantized signals and other post-processing
US5010345A (en) 1989-12-28 1991-04-23 International Business Machines Corporation Data compression method
US5001478A (en) 1989-12-28 1991-03-19 International Business Machines Corporation Method of encoding compressed data
US5184126A (en) 1989-12-28 1993-02-02 International Business Machines Corporation Method of decompressing compressed data
US5010344A (en) * 1989-12-28 1991-04-23 International Business Machines Corporation Method of decoding compressed data
DE69118250T2 (de) * 1990-01-19 1996-10-17 Hewlett Packard Ltd Zugriff für komprimierte daten
US5410671A (en) * 1990-05-01 1995-04-25 Cyrix Corporation Data compression/decompression processor
EP0688104A2 (de) * 1990-08-13 1995-12-20 Fujitsu Limited Verfahren und Vorrichtung zur Datenkomprimierung
JPH0495878A (ja) * 1990-08-14 1992-03-27 Sony Corp ピーク値検出回路
US5151697A (en) * 1990-10-15 1992-09-29 Board Of Regents Of The University Of Washington Data structure management tagging system
US5142282A (en) * 1990-11-07 1992-08-25 Hewlett-Packard Company Data compression dictionary access minimization
GB2251097B (en) * 1990-12-08 1995-05-10 Dowty Information Systems An adaptive data compression system
US5237460A (en) * 1990-12-14 1993-08-17 Ceram, Inc. Storage of compressed data on random access storage devices
US5490260A (en) * 1990-12-14 1996-02-06 Ceram, Inc. Solid-state RAM data storage for virtual memory computer using fixed-sized swap pages with selective compressed/uncompressed data store according to each data size
CA2065578C (en) * 1991-04-22 1999-02-23 David W. Carr Packet-based data compression method
US5245614A (en) * 1991-04-29 1993-09-14 Codex Corporation Vocabulary memory allocation for adaptive data compression of frame-multiplexed traffic
US5159336A (en) * 1991-08-13 1992-10-27 Iomega Corporation Tape controller with data compression and error correction sharing a common buffer
US5243341A (en) * 1992-06-01 1993-09-07 Hewlett Packard Company Lempel-Ziv compression scheme with enhanced adapation
US5175543A (en) * 1991-09-25 1992-12-29 Hewlett-Packard Company Dictionary reset performance enhancement for data compression applications
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
US5229768A (en) * 1992-01-29 1993-07-20 Traveling Software, Inc. Adaptive data compression system
US5379036A (en) * 1992-04-01 1995-01-03 Storer; James A. Method and apparatus for data compression
US5485526A (en) * 1992-06-02 1996-01-16 Hewlett-Packard Corporation Memory circuit for lossless data compression/decompression dictionary storage
US5537551A (en) * 1992-11-18 1996-07-16 Denenberg; Jeffrey N. Data compression method for use in a computerized informational and transactional network
US5323155A (en) * 1992-12-04 1994-06-21 International Business Machines Corporation Semi-static data compression/expansion method
US5424732A (en) * 1992-12-04 1995-06-13 International Business Machines Corporation Transmission compatibility using custom compression method and hardware
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
JPH088842A (ja) * 1994-06-15 1996-01-12 Philips Electron Nv データ圧縮伝送システム
US5561421A (en) * 1994-07-28 1996-10-01 International Business Machines Corporation Access method data compression with system-built generic dictionaries
US5627533A (en) * 1994-08-05 1997-05-06 Hayes Microcomputer Products, Inc. Adjusting encoding table size and memory allocation for data compression in response to input data
US6460036B1 (en) 1994-11-29 2002-10-01 Pinpoint Incorporated System and method for providing customized electronic newspapers and target advertisements
US5758257A (en) 1994-11-29 1998-05-26 Herz; Frederick System and method for scheduling broadcast of and access to video programs and other data using customer profiles
US5686912A (en) * 1995-05-08 1997-11-11 Hewlett-Packard Company Data compression method and apparatus with optimized transitions between compressed and uncompressed modes
US6069573A (en) * 1996-06-17 2000-05-30 Hewlett-Packard Company Match and match address signal prioritization in a content addressable memory encoder
US5654703A (en) * 1996-06-17 1997-08-05 Hewlett-Packard Company Parallel data compression and decompression
US5978885A (en) * 1996-06-17 1999-11-02 Hewlett Packard Co. Method and apparatus for self-timing associative data memory
US5828324A (en) * 1996-06-17 1998-10-27 Hewlett-Packard Company Match and match address signal generation in a content addressable memory encoder
US5771011A (en) * 1996-07-15 1998-06-23 International Business Machines Corporation Match detect logic for multi-byte per cycle hardware data compression
US5951623A (en) 1996-08-06 1999-09-14 Reynar; Jeffrey C. Lempel- Ziv data compression technique utilizing a dictionary pre-filled with frequent letter combinations, words and/or phrases
JP3540109B2 (ja) * 1996-12-24 2004-07-07 富士通株式会社 データ圧縮方法及び装置
US7898442B1 (en) * 1997-05-30 2011-03-01 International Business Machines Corporation On-line data compression analysis and regulation
JP3337633B2 (ja) 1997-12-03 2002-10-21 富士通株式会社 データ圧縮方法及びデータ復元方法並びにデータ圧縮プログラム又はデータ復元プログラムを記録したコンピュータ読み取り可能な記録媒体
US7630986B1 (en) 1999-10-27 2009-12-08 Pinpoint, Incorporated Secure data interchange
US6883087B1 (en) 2000-12-15 2005-04-19 Palm, Inc. Processing of binary data for compression
DE10117194B4 (de) * 2001-04-05 2013-09-19 Anton Rodi Winkel- oder Wegmessgeber
US6650261B2 (en) * 2001-09-06 2003-11-18 Xerox Corporation Sliding window compression method utilizing defined match locations
US9576570B2 (en) * 2010-07-30 2017-02-21 Sri International Method and apparatus for adding new vocabulary to interactive translation and dialogue systems
US9455864B2 (en) * 2012-06-25 2016-09-27 Radware, Ltd. System and method for creation, distribution, application, and management of shared compression dictionaries for use in symmetric HTTP networks
US8612402B1 (en) * 2012-10-26 2013-12-17 Stec, Inc. Systems and methods for managing key-value stores

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249924B (de) * 1962-07-17
US3394352A (en) * 1965-07-22 1968-07-23 Electronic Image Systems Corp Method of and apparatus for code communication
US3906485A (en) * 1973-06-13 1975-09-16 Ibm Data coding circuits for encoded waveform with constrained charge accumulation
JPS5619506A (en) * 1979-07-23 1981-02-24 Sony Corp Code converting method
US4386416A (en) * 1980-06-02 1983-05-31 Mostek Corporation Data compression, encryption, and in-line transmission system
US4464650A (en) * 1981-08-10 1984-08-07 Sperry Corporation Apparatus and method for compressing data signals and restoring the compressed data signals
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
US4609907A (en) * 1984-10-31 1986-09-02 International Business Machines Corporation Dual channel partial response system
US4646061A (en) * 1985-03-13 1987-02-24 Racal Data Communications Inc. Data communication with modified Huffman coding
US4626829A (en) * 1985-08-19 1986-12-02 Intelligent Storage Inc. Data compression using run length encoding and statistical encoding

Also Published As

Publication number Publication date
EP0313190A2 (de) 1989-04-26
JP2785913B2 (ja) 1998-08-13
US4847619A (en) 1989-07-11
EP0313190B1 (de) 1994-02-02
JPH01132222A (ja) 1989-05-24
DE3887627D1 (de) 1994-03-17
EP0313190A3 (en) 1990-07-04

Similar Documents

Publication Publication Date Title
DE3887627D1 (de) Effizienzabhängige Rücksetzung eines Datenkomprimierungswörterbuches.
DE69018046D1 (de) Kodierung eines Bildelementes.
DE68929215D1 (de) Datenprozessor
DE3750543T2 (de) Elektronisches Wörterbuch.
NO884086L (no) Mikrodatamaskin.
DE68926783D1 (de) Paralleler datenprozessor
DE68922515T2 (de) Steckbarer Verbinder.
DE3784050D1 (de) Ein paralleler datenprozessor.
NO895161D0 (no) Ekstraksjon av relaterte data med parallellprosessor.
FI890630A (fi) Undersamplingsanordning foer samplad data.
DE69026924D1 (de) Datenkomprimierungsverfahren
DE3886122D1 (de) Textverarbeitungsgerät.
DE3750704D1 (de) Datenprozessor.
DE3851742D1 (de) Textverarbeitungsgerät.
DE69031238T2 (de) Datenentpacker
IT8723054A0 (it) Metodo di interscambio di intervalli temporali a byte zero.
DE68915957T2 (de) Datenkompression.
DE3874706D1 (de) Vorfluegel eines flugzeuges.
DE3852606T2 (de) Textverarbeitungsapparat.
IT8723053A0 (it) Metodo di interscambio di intervalli temporali a byte zero.
DE3853137T2 (de) Abfragevorrichtung.
DE3879792D1 (de) Gerichtete-biosynthese eines milbemycinanaloges.
DE68920800T2 (de) Computerterminal.
NO884535D0 (no) Metode for aa kople sammen datamaskiner.
DE68926193D1 (de) Textverarbeitungsgerät

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

8339 Ceased/non-payment of the annual fee