FR2356999A1 - Appareil de developpement de donnees - Google Patents

Appareil de developpement de donnees

Info

Publication number
FR2356999A1
FR2356999A1 FR7716059A FR7716059A FR2356999A1 FR 2356999 A1 FR2356999 A1 FR 2356999A1 FR 7716059 A FR7716059 A FR 7716059A FR 7716059 A FR7716059 A FR 7716059A FR 2356999 A1 FR2356999 A1 FR 2356999A1
Authority
FR
France
Prior art keywords
memory
development apparatus
bit pattern
data development
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
FR7716059A
Other languages
English (en)
Other versions
FR2356999B1 (fr
Inventor
Rory D Jackson
Willi K Rackl
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 FR2356999A1 publication Critical patent/FR2356999A1/fr
Application granted granted Critical
Publication of FR2356999B1 publication Critical patent/FR2356999B1/fr
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
    • H03M7/46—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/02—Storage circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/42—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of patterns using a display memory without fixed position correspondence between the display memory contents and the display position on the screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Memory System (AREA)
  • Digital Computer Display Output (AREA)
  • Executing Machine-Instructions (AREA)
  • Image Generation (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Debugging And Monitoring (AREA)

Abstract

Appareil pour développer des données comprimées dans une mémoire 2. L'appareil détecte en 12 une configuration de bits particulière contenue dans le courant des données à la sortie de 2. Cette configuration de bits est emmagasinée dans 20 et indique l'adresse initiale d'un segment de données, sa longueur et le nombre de fois qu'il doit être répété. L'information dans 20 commande les circuits d'accès à la mémoire 2. L'appareil permet d'accroître la capacité apparente d'emmagasinage de la mémoire.
FR7716059A 1976-06-30 1977-05-18 Appareil de developpement de donnees Granted FR2356999A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/701,325 US4054951A (en) 1976-06-30 1976-06-30 Data expansion apparatus

Publications (2)

Publication Number Publication Date
FR2356999A1 true FR2356999A1 (fr) 1978-01-27
FR2356999B1 FR2356999B1 (fr) 1979-03-09

Family

ID=24816911

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716059A Granted FR2356999A1 (fr) 1976-06-30 1977-05-18 Appareil de developpement de donnees

Country Status (6)

Country Link
US (1) US4054951A (fr)
JP (1) JPS533131A (fr)
CA (1) CA1074016A (fr)
DE (1) DE2723523A1 (fr)
FR (1) FR2356999A1 (fr)
GB (1) GB1529538A (fr)

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USRE36989E (en) * 1979-10-18 2000-12-12 Storage Technology Corporation Virtual storage system and method
DE3118676A1 (de) * 1981-05-12 1982-12-02 Heinz Karl Eckhart Dr Jur Verfahren zur kompression redundanter folgen serieller datenelemente
US4458333A (en) * 1981-12-21 1984-07-03 International Business Machines Corporation Dot matrix character printing using constrained memory
US4545032A (en) * 1982-03-08 1985-10-01 Iodata, Inc. Method and apparatus for character code compression and expansion
JPS5987569A (ja) * 1982-11-11 1984-05-21 Toshiba Corp デ−タ自動連続処理回路
US4574351A (en) * 1983-03-03 1986-03-04 International Business Machines Corporation Apparatus for compressing and buffering data
DE3476618D1 (en) * 1983-12-08 1989-03-09 Crosfield Electronics Ltd Detecting codewords
DE3432837A1 (de) * 1984-09-06 1986-03-06 Dr. Gerald Knabe GmbH, 4052 Korschenbroich Datenkompressions- und datenexpandiereinrichtung zum uebertragen bzw. speichern von daten
GB2172127B (en) * 1985-03-06 1988-10-12 Ferranti Plc Data compression system
JPS63170063A (ja) * 1987-01-07 1988-07-13 Brother Ind Ltd 印字装置
US5003307A (en) * 1989-01-13 1991-03-26 Stac, Inc. Data compression apparatus with shift register search means
US5146221A (en) * 1989-01-13 1992-09-08 Stac, Inc. Data compression apparatus and method
US5126739A (en) * 1989-01-13 1992-06-30 Stac Electronics Data compression apparatus and method
US5532694A (en) * 1989-01-13 1996-07-02 Stac Electronics, Inc. Data compression apparatus and method using matching string searching and Huffman encoding
US5016009A (en) * 1989-01-13 1991-05-14 Stac, Inc. Data compression apparatus and method
US5627995A (en) * 1990-12-14 1997-05-06 Alfred P. Gnadinger Data compression and decompression using memory spaces of more than one size
CA2077271C (fr) * 1991-12-13 1998-07-28 David J. Craft Methode et appareil de compression de donnees
US5396228A (en) * 1992-01-16 1995-03-07 Mobile Telecommunications Technologies Methods and apparatus for compressing and decompressing paging data
US5406278A (en) * 1992-02-28 1995-04-11 Intersecting Concepts, Inc. Method and apparatus for data compression having an improved matching algorithm which utilizes a parallel hashing technique
US5371499A (en) * 1992-02-28 1994-12-06 Intersecting Concepts, Inc. Data compression using hashing
US5353024A (en) * 1992-05-01 1994-10-04 Intersecting Concepts, Inc. Method for data compression having an improved encoding algorithm which utilizes a token stacking technique
GB2284492B (en) * 1993-12-06 1998-05-13 Graeme Roy Smith Improvements to computer control units
US5563595A (en) * 1993-12-23 1996-10-08 International Business Machines Corporation Method and apparatus for compressing data
US5525982A (en) * 1994-04-15 1996-06-11 International Business Machines Corporation Method and means for character string pattern matching for compression and the like using minimal cycles per character
US5608396A (en) * 1995-02-28 1997-03-04 International Business Machines Corporation Efficient Ziv-Lempel LZI data compression system using variable code fields
US5526363A (en) * 1995-05-16 1996-06-11 Telco Systems, Inc. Multicontext compression system with shared data structures
US5940871A (en) * 1996-10-28 1999-08-17 International Business Machines Corporation Computer system and method for selectively decompressing operating system ROM image code using a page fault
US6658526B2 (en) 1997-03-12 2003-12-02 Storage Technology Corporation Network attached virtual data storage subsystem
JP2000512416A (ja) 1997-03-12 2000-09-19 ストーリッジ テクノロジー コーポレーション ネットワーク付属仮想テープデータ記憶サブシステム
US5818368A (en) * 1997-04-18 1998-10-06 Premier Research, Llc Method and apparatus for lossless digital data compression
US6127953A (en) * 1998-03-23 2000-10-03 Siemens Information And Communication Networks, Inc. Apparatus and method for compressing data containing repetitive patterns
US6094605A (en) * 1998-07-06 2000-07-25 Storage Technology Corporation Virtual automated cartridge system
US6624761B2 (en) 1998-12-11 2003-09-23 Realtime Data, Llc Content independent data compression method and system
US6330621B1 (en) 1999-01-15 2001-12-11 Storage Technology Corporation Intelligent data storage manager
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
US20010047473A1 (en) 2000-02-03 2001-11-29 Realtime Data, Llc Systems and methods for computer initialization
US6834324B1 (en) 2000-04-10 2004-12-21 Storage Technology Corporation System and method for virtual tape volumes
US8692695B2 (en) 2000-10-03 2014-04-08 Realtime Data, Llc Methods for encoding and decoding data
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
US7386046B2 (en) 2001-02-13 2008-06-10 Realtime Data Llc Bandwidth sensitive data compression and decompression
JP3913004B2 (ja) 2001-05-28 2007-05-09 キヤノン株式会社 データ圧縮方法及び装置及びコンピュータプログラム及び記憶媒体
US20030126132A1 (en) * 2001-12-27 2003-07-03 Kavuri Ravi K. Virtual volume management system and method
US6714145B1 (en) 2002-09-26 2004-03-30 Richard Marques Method and apparatus for integer-based encoding and decoding of bits
EP1416641A1 (fr) * 2002-10-30 2004-05-06 STMicroelectronics S.r.l. Méthode pour comprimer des données répétitives, en particulier données de test mémoire
US9614772B1 (en) 2003-10-20 2017-04-04 F5 Networks, Inc. System and method for directing network traffic in tunneling applications
US8024483B1 (en) 2004-10-01 2011-09-20 F5 Networks, Inc. Selective compression for network connections
US7477935B2 (en) * 2004-11-29 2009-01-13 Cameron Health, Inc. Method and apparatus for beat alignment and comparison
US7783781B1 (en) 2005-08-05 2010-08-24 F5 Networks, Inc. Adaptive compression
US8533308B1 (en) 2005-08-12 2013-09-10 F5 Networks, Inc. Network traffic management through protocol-configurable transaction processing
US7164370B1 (en) 2005-10-06 2007-01-16 Analog Devices, Inc. System and method for decoding data compressed in accordance with dictionary-based compression schemes
US8275909B1 (en) 2005-12-07 2012-09-25 F5 Networks, Inc. Adaptive compression
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US8417833B1 (en) 2006-11-29 2013-04-09 F5 Networks, Inc. Metacodec for optimizing network data compression based on comparison of write and read rates
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196564A1 (fr) * 1972-08-16 1974-03-15 Ibm
FR2246140A1 (fr) * 1973-07-16 1975-04-25 Ibm

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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
FR2196564A1 (fr) * 1972-08-16 1974-03-15 Ibm
FR2246140A1 (fr) * 1973-07-16 1975-04-25 Ibm

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
*REVUE "IBM TECHNICAL DISCLOSURE BULLETIN", VOLUME 13, NO. 12, MAI 1971, ARMONK USA BLIZARD ET AUTRES: "DATA COMPRESSION USING A NOUN *
REVUE "IBM TECHNICAL DISCLOSURE BULLETIN", VOLUME 16, NO. 3, AOUT 1973, ARMONK USA FRANKLIN: "PACKING *
UNPACKING OF DATA", PAGES 881 A 886 *
VECTOR LOOKUP TABLE", PAGE 3618) *

Also Published As

Publication number Publication date
CA1074016A (fr) 1980-03-18
GB1529538A (en) 1978-10-25
US4054951A (en) 1977-10-18
JPS5746096B2 (fr) 1982-10-01
DE2723523A1 (de) 1978-01-05
JPS533131A (en) 1978-01-12
FR2356999B1 (fr) 1979-03-09

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