DK1400954T3 - Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde/niveau-moduser - Google Patents

Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde/niveau-moduser

Info

Publication number
DK1400954T3
DK1400954T3 DK03020015T DK03020015T DK1400954T3 DK 1400954 T3 DK1400954 T3 DK 1400954T3 DK 03020015 T DK03020015 T DK 03020015T DK 03020015 T DK03020015 T DK 03020015T DK 1400954 T3 DK1400954 T3 DK 1400954T3
Authority
DK
Denmark
Prior art keywords
level
coding
run length
adjusting
modes
Prior art date
Application number
DK03020015T
Other languages
Danish (da)
English (en)
Inventor
Sanjeev Mehrotra
Wei-Ge Chen
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 DK1400954T3 publication Critical patent/DK1400954T3/da

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)
DK03020015T 2002-09-04 2003-09-03 Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde/niveau-moduser DK1400954T3 (da)

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
DK1400954T3 true DK1400954T3 (da) 2008-03-31

Family

ID=34067862

Family Applications (2)

Application Number Title Priority Date Filing Date
DK10181047.1T DK2282310T3 (da) 2002-09-04 2003-09-03 Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde /niveau-moduser
DK03020015T DK1400954T3 (da) 2002-09-04 2003-09-03 Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde/niveau-moduser

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DK10181047.1T DK2282310T3 (da) 2002-09-04 2003-09-03 Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde /niveau-moduser

Country Status (8)

Country Link
US (5) US7822601B2 (de)
EP (5) EP2006840B1 (de)
AT (4) ATE449405T1 (de)
DE (3) DE60330198D1 (de)
DK (2) DK2282310T3 (de)
ES (4) ES2297083T3 (de)
HK (2) HK1152790A1 (de)
PT (1) PT2282310E (de)

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ATE543179T1 (de) 2012-02-15
US20120069899A1 (en) 2012-03-22
US8712783B2 (en) 2014-04-29
EP1734511A2 (de) 2006-12-20
ES2297083T3 (es) 2008-05-01
DE20321883U1 (de) 2012-01-20
US7840403B2 (en) 2010-11-23
ES2388942T3 (es) 2012-10-19
EP2267698B1 (de) 2012-01-25
DE60317982D1 (de) 2008-01-24
US20140229186A1 (en) 2014-08-14
HK1154302A1 (en) 2012-04-13
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ES2378462T3 (es) 2012-04-12
ATE449405T1 (de) 2009-12-15
US20080228476A1 (en) 2008-09-18
EP1400954A2 (de) 2004-03-24
EP1734511A3 (de) 2007-06-20
DE60330198D1 (de) 2009-12-31
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EP2282310B1 (de) 2012-01-25
EP2267698A1 (de) 2010-12-29
EP1400954B1 (de) 2007-12-12
US7822601B2 (en) 2010-10-26
US20080262855A1 (en) 2008-10-23
US20110035225A1 (en) 2011-02-10
ATE381090T1 (de) 2007-12-15
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US8090574B2 (en) 2012-01-03
DE60317982T2 (de) 2008-04-10
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