DE69431622T2 - Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren - Google Patents

Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren

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Publication number
DE69431622T2
DE69431622T2 DE69431622T DE69431622T DE69431622T2 DE 69431622 T2 DE69431622 T2 DE 69431622T2 DE 69431622 T DE69431622 T DE 69431622T DE 69431622 T DE69431622 T DE 69431622T DE 69431622 T2 DE69431622 T2 DE 69431622T2
Authority
DE
Germany
Prior art keywords
encoding
subtracting
filtering
bits
digital sound
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
DE69431622T
Other languages
English (en)
Other versions
DE69431622D1 (de
Inventor
Werner Oomen
Edwin Groenewegen
Der Waal Gerbrand Van
Nicolaas Veldhuis
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69431622D1 publication Critical patent/DE69431622D1/de
Publication of DE69431622T2 publication Critical patent/DE69431622T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/04—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 predictive techniques
DE69431622T 1993-12-23 1994-12-13 Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren Expired - Lifetime DE69431622T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93203652 1993-12-23
PCT/IB1994/000418 WO1995018523A1 (en) 1993-12-23 1994-12-13 Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding and decoding apparatus for use with this method

Publications (2)

Publication Number Publication Date
DE69431622D1 DE69431622D1 (de) 2002-12-05
DE69431622T2 true DE69431622T2 (de) 2003-06-26

Family

ID=8214237

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431622T Expired - Lifetime DE69431622T2 (de) 1993-12-23 1994-12-13 Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren

Country Status (6)

Country Link
US (1) US5649054A (de)
EP (1) EP0691052B1 (de)
JP (2) JP3782103B2 (de)
KR (1) KR100518470B1 (de)
DE (1) DE69431622T2 (de)
WO (1) WO1995018523A1 (de)

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US7376242B2 (en) * 2001-03-22 2008-05-20 Digimarc Corporation Quantization-based data embedding in mapped data
US8050452B2 (en) * 2001-03-22 2011-11-01 Digimarc Corporation Quantization-based data embedding in mapped data
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Also Published As

Publication number Publication date
KR100518470B1 (ko) 2005-12-27
KR960701518A (ko) 1996-02-24
US5649054A (en) 1997-07-15
EP0691052A1 (de) 1996-01-10
JP3782103B2 (ja) 2006-06-07
JP2006139306A (ja) 2006-06-01
WO1995018523A1 (en) 1995-07-06
DE69431622D1 (de) 2002-12-05
EP0691052B1 (de) 2002-10-30
JPH08507391A (ja) 1996-08-06

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