DE69230760D1 - Integrierte signalisierung - Google Patents

Integrierte signalisierung

Info

Publication number
DE69230760D1
DE69230760D1 DE69230760T DE69230760T DE69230760D1 DE 69230760 D1 DE69230760 D1 DE 69230760D1 DE 69230760 T DE69230760 T DE 69230760T DE 69230760 T DE69230760 T DE 69230760T DE 69230760 D1 DE69230760 D1 DE 69230760D1
Authority
DE
Germany
Prior art keywords
audio signal
signal
code
code signal
essentially
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
DE69230760T
Other languages
English (en)
Other versions
DE69230760T2 (de
Inventor
David Preuss
Estephan Roukos
W Huggins
Herbert Gish
Antonio Bergamo
Mangan Peterson
Gregory Derr
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.)
Bolt Beranek and Newman Inc
Original Assignee
Bolt Beranek and Newman Inc
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 Bolt Beranek and Newman Inc filed Critical Bolt Beranek and Newman Inc
Publication of DE69230760D1 publication Critical patent/DE69230760D1/de
Application granted granted Critical
Publication of DE69230760T2 publication Critical patent/DE69230760T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • G11B20/00913—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 based on a spread spectrum technique
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
DE69230760T 1991-12-17 1992-12-10 Integrierte signalisierung Expired - Fee Related DE69230760T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/808,913 US5319735A (en) 1991-12-17 1991-12-17 Embedded signalling
PCT/US1992/010826 WO1993012599A1 (en) 1991-12-17 1992-12-10 Embedded signalling

Publications (2)

Publication Number Publication Date
DE69230760D1 true DE69230760D1 (de) 2000-04-13
DE69230760T2 DE69230760T2 (de) 2000-11-23

Family

ID=25200101

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69230760T Expired - Fee Related DE69230760T2 (de) 1991-12-17 1992-12-10 Integrierte signalisierung

Country Status (9)

Country Link
US (1) US5319735A (de)
EP (1) EP0617865B1 (de)
JP (1) JP3264668B2 (de)
KR (1) KR100287536B1 (de)
AT (1) ATE190446T1 (de)
AU (1) AU676143B2 (de)
CA (1) CA2126099C (de)
DE (1) DE69230760T2 (de)
WO (1) WO1993012599A1 (de)

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EP0617865B1 (de) 2000-03-08
KR100287536B1 (ko) 2001-04-16
KR940704095A (ko) 1994-12-12
US5319735A (en) 1994-06-07
JP3264668B2 (ja) 2002-03-11
DE69230760T2 (de) 2000-11-23
ATE190446T1 (de) 2000-03-15
CA2126099C (en) 2003-11-04
AU676143B2 (en) 1997-03-06
WO1993012599A1 (en) 1993-06-24
JPH07505984A (ja) 1995-06-29
CA2126099A1 (en) 1993-06-18
AU3320793A (en) 1993-07-19
EP0617865A1 (de) 1994-10-05

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