BR8602558A - Aparelho e metodo para a compressao e descompressao de um conjunto de dados - Google Patents

Aparelho e metodo para a compressao e descompressao de um conjunto de dados

Info

Publication number
BR8602558A
BR8602558A BR8602558A BR8602558A BR8602558A BR 8602558 A BR8602558 A BR 8602558A BR 8602558 A BR8602558 A BR 8602558A BR 8602558 A BR8602558 A BR 8602558A BR 8602558 A BR8602558 A BR 8602558A
Authority
BR
Brazil
Prior art keywords
decompression
compression
data set
data
Prior art date
Application number
BR8602558A
Other languages
English (en)
Inventor
Lawrence Edward Larson
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BR8602558A publication Critical patent/BR8602558A/pt

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
    • H03M7/3066—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction by means of a mask or a bit-map

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BR8602558A 1985-06-11 1986-06-03 Aparelho e metodo para a compressao e descompressao de um conjunto de dados BR8602558A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/743,443 US4626824A (en) 1985-06-11 1985-06-11 Apparatus and algorithm for compressing and decompressing data

Publications (1)

Publication Number Publication Date
BR8602558A true BR8602558A (pt) 1987-02-03

Family

ID=24988791

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8602558A BR8602558A (pt) 1985-06-11 1986-06-03 Aparelho e metodo para a compressao e descompressao de um conjunto de dados

Country Status (6)

Country Link
US (1) US4626824A (pt)
EP (1) EP0204992B1 (pt)
JP (1) JPS61284119A (pt)
BR (1) BR8602558A (pt)
CA (1) CA1252896A (pt)
DE (1) DE3689674T2 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741047A (en) * 1986-03-20 1988-04-26 Computer Entry Systems Corporation Information storage, retrieval and display system
US5202931A (en) * 1987-10-06 1993-04-13 Cell Analysis Systems, Inc. Methods and apparatus for the quantitation of nuclear protein
US5146221A (en) * 1989-01-13 1992-09-08 Stac, Inc. 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
US4929946A (en) * 1989-02-09 1990-05-29 Storage Technology Corporation Adaptive data compression apparatus including run length encoding for a tape drive system
JP2840320B2 (ja) * 1989-09-20 1998-12-24 株式会社日立製作所 半導体記憶装置
US5179711A (en) * 1989-12-26 1993-01-12 International Business Machines Corporation Minimum identical consecutive run length data units compression method by searching consecutive data pair comparison results stored in a string
US5438671A (en) * 1991-07-19 1995-08-01 Dell U.S.A., L.P. Method and system for transferring compressed bytes of information between separate hard disk drive units
US5450562A (en) * 1992-10-19 1995-09-12 Hewlett-Packard Company Cache-based data compression/decompression
US5291137A (en) * 1992-11-02 1994-03-01 Schlumberger Technology Corporation Processing method and apparatus for processing spin echo in-phase and quadrature amplitudes from a pulsed nuclear magnetism tool and producing new output data to be recorded on an output record
US6523079B2 (en) * 1993-02-19 2003-02-18 Elonex Ip Holdings Ltd Micropersonal digital assistant
US5363098A (en) * 1993-10-25 1994-11-08 Digital Equipment Corporation Byte aligned data compression
US5793980A (en) 1994-11-30 1998-08-11 Realnetworks, Inc. Audio-on-demand communication system
FR2751492B1 (fr) * 1996-07-16 1998-11-13 Alcatel Mobile Comm France Procede et dispositif de compression et de decompression de messages
SE521925C2 (sv) * 1997-11-21 2003-12-16 Ericsson Telefon Ab L M Förfarande och anordning vid datakompromering
US6611211B2 (en) * 2001-05-04 2003-08-26 International Business Machines Corporation Data mask coding
US6907516B2 (en) * 2002-05-30 2005-06-14 Microsoft Corporation Compression of program instructions using advanced sequential correlation
US7908399B2 (en) * 2003-05-30 2011-03-15 Cisco Technology, Inc. Compression of repeated patterns in full bandwidth channels over a packet network
CN101095284B (zh) * 2004-12-28 2012-04-18 卡西欧电子工业株式会社 用于有选择地压缩和解压缩数据的设备与方法
US10042774B2 (en) * 2016-09-19 2018-08-07 Advanced Micro Devices, Inc. Method and apparatus for masking and transmitting data

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117470A (en) * 1976-10-08 1978-09-26 Data General Corporation Data bit compression system
US4192010A (en) * 1977-11-28 1980-03-04 Kerner William R Data reduction system
JPS57101937A (en) * 1980-12-16 1982-06-24 Nec Corp Data storage device
US4420771A (en) * 1981-02-09 1983-12-13 Bell Telephone Laboratories, Incorporated Technique for encoding multi-level signals
US4542515A (en) * 1983-11-14 1985-09-17 The United States Of America As Represented By The Secretary Of The Army Multilevel mate pair code compressor for codes expanded by the process of butting

Also Published As

Publication number Publication date
DE3689674T2 (de) 1994-09-15
CA1252896A (en) 1989-04-18
US4626824A (en) 1986-12-02
EP0204992A3 (en) 1990-02-14
EP0204992A2 (en) 1986-12-17
EP0204992B1 (en) 1994-03-02
JPS61284119A (ja) 1986-12-15
JPH0262058B2 (pt) 1990-12-21
DE3689674D1 (de) 1994-04-07

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Legal Events

Date Code Title Description
FG Letter patent granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 03/06/2001