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DE60330198D1 - Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus - Google Patents

Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus

Info

Publication number
DE60330198D1
DE60330198D1 DE60330198T DE60330198T DE60330198D1 DE 60330198 D1 DE60330198 D1 DE 60330198D1 DE 60330198 T DE60330198 T DE 60330198T DE 60330198 T DE60330198 T DE 60330198T DE 60330198 D1 DE60330198 D1 DE 60330198D1
Authority
DE
Germany
Prior art keywords
coding
mode
level
adapting
run length
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 - Lifetime
Application number
DE60330198T
Other languages
English (en)
Inventor
Sanjeev Mehrotra
Weig-Ge Chen
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.)
Microsoft Corp
Original Assignee
Microsoft 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
Priority claimed from US10/647,923 external-priority patent/US7433824B2/en
Application filed by Microsoft Corp filed Critical Microsoft Corp
Application granted granted Critical
Publication of DE60330198D1 publication Critical patent/DE60330198D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • 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
    • H03M7/4006—Conversion to or from arithmetic code
    • 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
    • H03M7/4093—Variable length to variable 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
    • H03M7/46—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60330198T 2002-09-04 2003-09-03 Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus Expired - Lifetime DE60330198D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40853802P 2002-09-04 2002-09-04
US10/647,923 US7433824B2 (en) 2002-09-04 2003-08-25 Entropy coding by adapting coding between level and run-length/level modes

Publications (1)

Publication Number Publication Date
DE60330198D1 true DE60330198D1 (de) 2009-12-31

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
DE60330198T Expired - Lifetime DE60330198D1 (de) 2002-09-04 2003-09-03 Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus
DE20321883U Expired - Lifetime DE20321883U1 (de) 2002-09-04 2003-09-03 Computervorrichtung und -system zum Entropiedecodieren quantisierter Transformationskoeffizienten eines Blockes
DE60317982T Expired - Lifetime DE60317982T2 (de) 2002-09-04 2003-09-03 Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE20321883U Expired - Lifetime DE20321883U1 (de) 2002-09-04 2003-09-03 Computervorrichtung und -system zum Entropiedecodieren quantisierter Transformationskoeffizienten eines Blockes
DE60317982T Expired - Lifetime DE60317982T2 (de) 2002-09-04 2003-09-03 Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus

Country Status (7)

Country Link
US (5) US7822601B2 (de)
EP (5) EP2267698B1 (de)
AT (4) ATE381090T1 (de)
DE (3) DE60330198D1 (de)
DK (2) DK1400954T3 (de)
ES (4) ES2297083T3 (de)
PT (1) PT2282310E (de)

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ATE543179T1 (de) 2012-02-15
US8712783B2 (en) 2014-04-29
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US9390720B2 (en) 2016-07-12
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US20140229186A1 (en) 2014-08-14
US20120069899A1 (en) 2012-03-22
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ATE543178T1 (de) 2012-02-15
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US20080228476A1 (en) 2008-09-18
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