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DE60203618D1 - Mit einer zeichentabelle implementierte datenkompressionsmethode und -vorrichtung - Google Patents

Mit einer zeichentabelle implementierte datenkompressionsmethode und -vorrichtung

Info

Publication number
DE60203618D1
DE60203618D1 DE60203618T DE60203618T DE60203618D1 DE 60203618 D1 DE60203618 D1 DE 60203618D1 DE 60203618 T DE60203618 T DE 60203618T DE 60203618 T DE60203618 T DE 60203618T DE 60203618 D1 DE60203618 D1 DE 60203618D1
Authority
DE
Germany
Prior art keywords
device implemented
drawing table
compromise method
data compromise
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.)
Expired - Fee Related
Application number
DE60203618T
Other languages
English (en)
Inventor
B Cooper
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.)
Unisys Corp
Original Assignee
Unisys 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 Unisys Corp filed Critical Unisys Corp
Application granted granted Critical
Publication of DE60203618D1 publication Critical patent/DE60203618D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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)
DE60203618T 2001-05-14 2002-04-15 Mit einer zeichentabelle implementierte datenkompressionsmethode und -vorrichtung Expired - Fee Related DE60203618D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/855,127 US6426711B1 (en) 2001-05-14 2001-05-14 Character table implemented data compression method and apparatus
PCT/US2002/011989 WO2002095950A1 (en) 2001-05-14 2002-04-15 Character table implemented data compression method and apparatus

Publications (1)

Publication Number Publication Date
DE60203618D1 true DE60203618D1 (de) 2005-05-12

Family

ID=25320421

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60203618T Expired - Fee Related DE60203618D1 (de) 2001-05-14 2002-04-15 Mit einer zeichentabelle implementierte datenkompressionsmethode und -vorrichtung

Country Status (6)

Country Link
US (1) US6426711B1 (de)
EP (1) EP1393451B1 (de)
JP (1) JP4156381B2 (de)
CA (1) CA2446952C (de)
DE (1) DE60203618D1 (de)
WO (1) WO2002095950A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6570511B1 (en) * 2001-10-15 2003-05-27 Unisys Corporation Data compression method and apparatus implemented with limited length character tables and compact string code utilization
US6628211B1 (en) * 2002-03-19 2003-09-30 Unisys Corporation Prefix table implemented data compression method and apparatus
US6650259B1 (en) * 2002-05-06 2003-11-18 Unisys Corporation Character table implemented data decompression method and apparatus
US7167115B1 (en) 2005-08-26 2007-01-23 American Megatrends, Inc. Method, apparatus, and computer-readable medium for data compression and decompression utilizing multiple dictionaries
US9344528B2 (en) 2011-08-31 2016-05-17 Microsoft Technology Licensing, Llc Data compressor using hints
KR101956031B1 (ko) * 2012-10-15 2019-03-11 삼성전자 주식회사 데이터 압축 장치 및 방법, 데이터 압축 장치를 포함하는 메모리 시스템
US8872679B1 (en) * 2012-12-05 2014-10-28 Teradata Us, Inc. System and method for data compression using multiple small encoding tables
WO2014097359A1 (ja) * 2012-12-19 2014-06-26 富士通株式会社 圧縮プログラム、圧縮方法、圧縮装置およびシステム
JP6032291B2 (ja) * 2012-12-19 2016-11-24 富士通株式会社 圧縮プログラム、圧縮装置、伸張プログラム、伸張装置およびシステム
US8786471B1 (en) 2013-03-15 2014-07-22 Oracle International Corporation Lossless data compression with variable width codes
CN103326732B (zh) * 2013-05-10 2016-12-28 华为技术有限公司 压缩数据的方法、解压数据的方法、编码器和解码器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB8815978D0 (en) * 1988-07-05 1988-08-10 British Telecomm Method & apparatus for encoding decoding & transmitting data in compressed form
US5818873A (en) * 1992-08-03 1998-10-06 Advanced Hardware Architectures, Inc. Single clock cycle data compressor/decompressor with a string reversal mechanism
US5442350A (en) * 1992-10-29 1995-08-15 International Business Machines Corporation Method and means providing static dictionary structures for compressing character data and expanding compressed data
US5455576A (en) * 1992-12-23 1995-10-03 Hewlett Packard Corporation Apparatus and methods for Lempel Ziv data compression with improved management of multiple dictionaries in content addressable memory
US5642112A (en) * 1994-12-29 1997-06-24 Unisys Corporation Method and apparatus for performing LZW data compression utilizing an associative memory
US6169499B1 (en) * 1999-06-19 2001-01-02 Unisys Corporation LZW data compression/decompression apparatus and method with embedded run-length encoding/decoding
US6188333B1 (en) * 1999-08-12 2001-02-13 Unisys Corporation LZW data compression apparatus and method using look-ahead mathematical run processing
US6307488B1 (en) * 2000-05-04 2001-10-23 Unisys Corporation LZW data compression and decompression apparatus and method using grouped data characters to reduce dictionary accesses

Also Published As

Publication number Publication date
CA2446952A1 (en) 2002-11-28
JP2005501445A (ja) 2005-01-13
JP4156381B2 (ja) 2008-09-24
WO2002095950A8 (en) 2003-01-30
US6426711B1 (en) 2002-07-30
EP1393451B1 (de) 2005-04-06
WO2002095950A1 (en) 2002-11-28
EP1393451A1 (de) 2004-03-03
CA2446952C (en) 2010-04-06

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee