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GB2367460B - Improved huffman data compression method - Google Patents

Improved huffman data compression method

Info

Publication number
GB2367460B
GB2367460B GB0102164A GB0102164A GB2367460B GB 2367460 B GB2367460 B GB 2367460B GB 0102164 A GB0102164 A GB 0102164A GB 0102164 A GB0102164 A GB 0102164A GB 2367460 B GB2367460 B GB 2367460B
Authority
GB
United Kingdom
Prior art keywords
data compression
compression method
huffman data
improved huffman
improved
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
GB0102164A
Other versions
GB2367460A (en
GB0102164D0 (en
Inventor
Richard Price
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research 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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Publication of GB0102164D0 publication Critical patent/GB0102164D0/en
Priority to DE60136834T priority Critical patent/DE60136834D1/en
Priority to PCT/EP2001/006699 priority patent/WO2002027664A1/en
Priority to US10/381,718 priority patent/US7064489B2/en
Priority to AU2001270575A priority patent/AU2001270575A1/en
Priority to EP01949414A priority patent/EP1320833B1/en
Priority to CNB018195598A priority patent/CN1262972C/en
Publication of GB2367460A publication Critical patent/GB2367460A/en
Application granted granted Critical
Publication of GB2367460B publication Critical patent/GB2367460B/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
    • 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

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)
GB0102164A 2000-09-28 2001-01-27 Improved huffman data compression method Expired - Fee Related GB2367460B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP01949414A EP1320833B1 (en) 2000-09-28 2001-05-01 Improved huffman data compression method
PCT/EP2001/006699 WO2002027664A1 (en) 2000-09-28 2001-05-01 Improved huffman data compression method
US10/381,718 US7064489B2 (en) 2000-09-28 2001-05-01 Huffman data compression method
AU2001270575A AU2001270575A1 (en) 2000-09-28 2001-05-01 Improved huffman data compression method
DE60136834T DE60136834D1 (en) 2000-09-28 2001-05-01 METHOD FOR COMPRESSING DATA PACKAGES
CNB018195598A CN1262972C (en) 2000-09-28 2001-05-01 Improved Huffman data compression method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0023765A GB0023765D0 (en) 2000-09-28 2000-09-28 Hierarchical huffman

Publications (3)

Publication Number Publication Date
GB0102164D0 GB0102164D0 (en) 2001-03-14
GB2367460A GB2367460A (en) 2002-04-03
GB2367460B true GB2367460B (en) 2003-10-08

Family

ID=9900293

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0023765A Ceased GB0023765D0 (en) 2000-09-28 2000-09-28 Hierarchical huffman
GB0102164A Expired - Fee Related GB2367460B (en) 2000-09-28 2001-01-27 Improved huffman data compression method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0023765A Ceased GB0023765D0 (en) 2000-09-28 2000-09-28 Hierarchical huffman

Country Status (2)

Country Link
DE (1) DE60136834D1 (en)
GB (2) GB0023765D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2539027B (en) 2015-06-04 2019-04-17 Thales Holdings Uk Plc Video compression with increased fidelity near horizon

Also Published As

Publication number Publication date
DE60136834D1 (en) 2009-01-15
GB0023765D0 (en) 2000-11-08
GB2367460A (en) 2002-04-03
GB0102164D0 (en) 2001-03-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050127