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DE3678717D1 - Verfahren und einrichtung zur tonerkennung. - Google Patents

Verfahren und einrichtung zur tonerkennung.

Info

Publication number
DE3678717D1
DE3678717D1 DE8686430013T DE3678717T DE3678717D1 DE 3678717 D1 DE3678717 D1 DE 3678717D1 DE 8686430013 T DE8686430013 T DE 8686430013T DE 3678717 T DE3678717 T DE 3678717T DE 3678717 D1 DE3678717 D1 DE 3678717D1
Authority
DE
Germany
Prior art keywords
detecting sound
sound
detecting
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
DE8686430013T
Other languages
English (en)
Inventor
Claude Galand
Guy Roulier
Robert Vermot-Gauchy
Helene Cerf-Danon
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3678717D1 publication Critical patent/DE3678717D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE8686430013T 1986-04-30 1986-04-30 Verfahren und einrichtung zur tonerkennung. Expired - Lifetime DE3678717D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86430013A EP0243561B1 (de) 1986-04-30 1986-04-30 Verfahren und Einrichtung zur Tonerkennung

Publications (1)

Publication Number Publication Date
DE3678717D1 true DE3678717D1 (de) 1991-05-16

Family

ID=8196394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686430013T Expired - Lifetime DE3678717D1 (de) 1986-04-30 1986-04-30 Verfahren und einrichtung zur tonerkennung.

Country Status (5)

Country Link
US (1) US4782523A (de)
EP (1) EP0243561B1 (de)
JP (1) JPH0624398B2 (de)
CA (1) CA1284679C (de)
DE (1) DE3678717D1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193090A (en) * 1988-07-15 1993-03-09 Janusz Filipiak Access protection and priority control in distributed queueing
JP2540931B2 (ja) * 1989-03-03 1996-10-09 国際電信電話株式会社 Ｐｓｋ信号復調方法
US5068597A (en) * 1989-10-30 1991-11-26 General Electric Company Spectral estimation utilizing a minimum free energy method with recursive reflection coefficients
CA2022750A1 (en) * 1990-08-07 1992-02-08 Michel Ponton Dialing pulse signature recognizing method and device
EP0548438A1 (de) * 1991-12-20 1993-06-30 International Business Machines Corporation Verfahren und Vorrichtung zur Detektierung von Zweitonmehrfrequenzsignalen
US5459784A (en) * 1992-09-28 1995-10-17 Comsat Corporation Dual-tone multifrequency (DTMF) signalling transparency for low-data-rate vocoders
US5353346A (en) * 1992-12-22 1994-10-04 Mpr Teltech, Limited Multi-frequency signal detector and classifier
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6611607B1 (en) 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
CA2149163C (en) * 1994-06-28 1999-01-26 Jeffrey Wayne Daugherty Detection of tones while minimizing incorrect identification of other sounds as tones
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US6760463B2 (en) 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
AU717752B2 (en) * 1995-12-20 2000-03-30 Alcatel Australia Limited Tone detector
DE69702261T2 (de) * 1996-07-30 2001-01-25 British Telecommunications P.L.C., London Sprachkodierung
US6272176B1 (en) * 1998-07-16 2001-08-07 Nielsen Media Research, Inc. Broadcast encoding system and method
CN100372270C (zh) * 1998-07-16 2008-02-27 尼尔逊媒介研究股份有限公司 广播编码的系统和方法
US7006555B1 (en) 1998-07-16 2006-02-28 Nielsen Media Research, Inc. Spectral audio encoding
CA2310769C (en) 1999-10-27 2013-05-28 Nielsen Media Research, Inc. Audio signature extraction and correlation
US6968564B1 (en) 2000-04-06 2005-11-22 Nielsen Media Research, Inc. Multi-band spectral audio encoding
US7466742B1 (en) 2000-04-21 2008-12-16 Nielsen Media Research, Inc. Detection of entropy in connection with audio signals
US6879652B1 (en) 2000-07-14 2005-04-12 Nielsen Media Research, Inc. Method for encoding an input signal
US20020116186A1 (en) * 2000-09-09 2002-08-22 Adam Strauss Voice activity detector for integrated telecommunications processing
US7023981B2 (en) * 2002-01-08 2006-04-04 Freescale Semiconductor, Inc. Method and apparatus for signal detection
WO2005041109A2 (en) 2003-10-17 2005-05-06 Nielsen Media Research, Inc. Methods and apparatus for identifiying audio/video content using temporal signal characteristics
KR100986957B1 (ko) * 2005-12-05 2010-10-12 퀄컴 인코포레이티드 토널 컴포넌트들을 감지하는 시스템들, 방법들, 및 장치들
EP1918909B1 (de) * 2006-11-03 2010-07-07 Psytechnics Ltd Abtastfehlerkompensation
WO2010138014A1 (en) * 2009-05-28 2010-12-02 Lsi Corporation HIGH-PERFORMANCE TONE DETECTION USING A DIGITAL SIGNAL PROCESSOR (DSP) HAVING MULTIPLE ARITHMETIC LOGIC UNITS (ALUs)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424669A1 (fr) * 1978-04-27 1979-11-23 Materiel Telephonique Dispositifs analyseurs numeriques de spectres

Also Published As

Publication number Publication date
EP0243561B1 (de) 1991-04-10
JPH0624398B2 (ja) 1994-03-30
JPS62261255A (ja) 1987-11-13
CA1284679C (en) 1991-06-04
US4782523A (en) 1988-11-01
EP0243561A1 (de) 1987-11-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee