DE68921305D1 - Kodierer zur Einfügung einer zusätzlichen Information in ein digitales Audiosignal mit einem vorbestimmten Format, Dekoder zur Ableitung dieser zusätzlichen Information aus diesem digitalen Signal, Einrichtung mit diesem Kodierer zur Aufzeichnung eines digitalen Signals auf einen Informationsträger und mittels dieser Einrichtung erhaltener Informationsträger. - Google Patents

Kodierer zur Einfügung einer zusätzlichen Information in ein digitales Audiosignal mit einem vorbestimmten Format, Dekoder zur Ableitung dieser zusätzlichen Information aus diesem digitalen Signal, Einrichtung mit diesem Kodierer zur Aufzeichnung eines digitalen Signals auf einen Informationsträger und mittels dieser Einrichtung erhaltener Informationsträger.

Info

Publication number
DE68921305D1
DE68921305D1 DE68921305T DE68921305T DE68921305D1 DE 68921305 D1 DE68921305 D1 DE 68921305D1 DE 68921305 T DE68921305 T DE 68921305T DE 68921305 T DE68921305 T DE 68921305T DE 68921305 D1 DE68921305 D1 DE 68921305D1
Authority
DE
Germany
Prior art keywords
signal
sub
quantized
digital
predetermined format
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
DE68921305T
Other languages
English (en)
Other versions
DE68921305T2 (de
Inventor
Willem Frederik Druyvesteyn
Abraham Hoogendoorn
De Kerkhof Leon Maria Van
Raymond Nicolaas Joha 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
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
Priority claimed from NL8802769A external-priority patent/NL8802769A/nl
Application filed by Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE68921305D1 publication Critical patent/DE68921305D1/de
Publication of DE68921305T2 publication Critical patent/DE68921305T2/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
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/02—Reversible analogue/digital converters
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G11B20/00891—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm embedded in audio data
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • 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
    • 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
    • H04B1/667—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 a division in frequency subbands
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
DE68921305T 1988-11-10 1989-11-08 Kodierer zur Einfügung einer zusätzlichen Information in ein digitales Audiosignal mit einem vorbestimmten Format, Dekoder zur Ableitung dieser zusätzlichen Information aus diesem digitalen Signal, Einrichtung mit diesem Kodierer zur Aufzeichnung eines digitalen Signals auf einen Informationsträger und mittels dieser Einrichtung erhaltener Informationsträger. Expired - Lifetime DE68921305T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8802769A NL8802769A (nl) 1988-11-10 1988-11-10 Coder om extra informatie op te nemen in een digitaal audiosignaal met een tevoren bepaald formaat alsmede een decoder om deze extra informatie uit dit digitale signaal af te leiden.
NL8901032A NL8901032A (nl) 1988-11-10 1989-04-25 Coder om extra informatie op te nemen in een digitaal audiosignaal met een tevoren bepaald formaat, een decoder om deze extra informatie uit dit digitale signaal af te leiden, een inrichting voor het opnemen van een digitaal signaal op een registratiedrager, voorzien van de coder, en een registratiedrager verkregen met deze inrichting.

Publications (2)

Publication Number Publication Date
DE68921305D1 true DE68921305D1 (de) 1995-03-30
DE68921305T2 DE68921305T2 (de) 1995-09-07

Family

ID=26646445

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68921305T Expired - Lifetime DE68921305T2 (de) 1988-11-10 1989-11-08 Kodierer zur Einfügung einer zusätzlichen Information in ein digitales Audiosignal mit einem vorbestimmten Format, Dekoder zur Ableitung dieser zusätzlichen Information aus diesem digitalen Signal, Einrichtung mit diesem Kodierer zur Aufzeichnung eines digitalen Signals auf einen Informationsträger und mittels dieser Einrichtung erhaltener Informationsträger.

Country Status (11)

Country Link
US (1) US5161210A (de)
EP (1) EP0372601B1 (de)
JP (1) JP2993685B2 (de)
KR (1) KR0137473B1 (de)
AT (1) ATE118932T1 (de)
AU (1) AU626605B2 (de)
BR (1) BR8905770A (de)
DE (1) DE68921305T2 (de)
ES (1) ES2071645T3 (de)
HK (1) HK61296A (de)
NL (1) NL8901032A (de)

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AU4456889A (en) 1990-05-31
ATE118932T1 (de) 1995-03-15
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EP0372601B1 (de) 1995-02-22
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