GB2367223B - Data encoding method and apparatus and data decoding method and apparatus - Google Patents

Data encoding method and apparatus and data decoding method and apparatus

Info

Publication number
GB2367223B
GB2367223B GB0130979A GB0130979A GB2367223B GB 2367223 B GB2367223 B GB 2367223B GB 0130979 A GB0130979 A GB 0130979A GB 0130979 A GB0130979 A GB 0130979A GB 2367223 B GB2367223 B GB 2367223B
Authority
GB
United Kingdom
Prior art keywords
data
encoding method
decoding method
data encoding
data decoding
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
GB0130979A
Other versions
GB0130979D0 (en
GB2367223A (en
Inventor
Kimitaka Murashita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority claimed from GB9718503A external-priority patent/GB2321375B/en
Publication of GB0130979D0 publication Critical patent/GB0130979D0/en
Publication of GB2367223A publication Critical patent/GB2367223A/en
Application granted granted Critical
Publication of GB2367223B publication Critical patent/GB2367223B/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB0130979A 1997-01-21 1997-09-01 Data encoding method and apparatus and data decoding method and apparatus Expired - Fee Related GB2367223B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP889597 1997-01-21
GB9718503A GB2321375B (en) 1997-01-21 1997-09-01 Data encoding method and apparatus and data decoding method and apparatus

Publications (3)

Publication Number Publication Date
GB0130979D0 GB0130979D0 (en) 2002-02-13
GB2367223A GB2367223A (en) 2002-03-27
GB2367223B true GB2367223B (en) 2002-05-15

Family

ID=26312157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0130979A Expired - Fee Related GB2367223B (en) 1997-01-21 1997-09-01 Data encoding method and apparatus and data decoding method and apparatus

Country Status (1)

Country Link
GB (1) GB2367223B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636167B1 (en) * 2000-10-31 2003-10-21 Intel Corporation Method of generating Huffman code length information
CN101483778B (en) * 2009-01-19 2012-05-09 威盛电子股份有限公司 Decoding method and apparatus for decoding data bit stream

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376933A (en) * 1979-02-22 1983-03-15 Xerox Corporation Circuit for compacting data
GB2152253A (en) * 1981-10-15 1985-07-31 Codex Corp Data compression
EP0283735A2 (en) * 1987-02-24 1988-09-28 Hayes Microcomputer Products, Inc. Adaptive data compression method and apparatus
EP0617518A2 (en) * 1993-03-26 1994-09-28 General Instrument Corporation Of Delaware Variable length codeword packer
US5436626A (en) * 1990-03-26 1995-07-25 Bell Communications Research, Inc. Variable-length codeword encoder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376933A (en) * 1979-02-22 1983-03-15 Xerox Corporation Circuit for compacting data
GB2152253A (en) * 1981-10-15 1985-07-31 Codex Corp Data compression
EP0283735A2 (en) * 1987-02-24 1988-09-28 Hayes Microcomputer Products, Inc. Adaptive data compression method and apparatus
US5436626A (en) * 1990-03-26 1995-07-25 Bell Communications Research, Inc. Variable-length codeword encoder
EP0617518A2 (en) * 1993-03-26 1994-09-28 General Instrument Corporation Of Delaware Variable length codeword packer

Also Published As

Publication number Publication date
GB0130979D0 (en) 2002-02-13
GB2367223A (en) 2002-03-27

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140901