DE3269709D1 - Method and device for the detection of data or of signalling on a telephonic path - Google Patents

Method and device for the detection of data or of signalling on a telephonic path

Info

Publication number
DE3269709D1
DE3269709D1 DE8282110801T DE3269709T DE3269709D1 DE 3269709 D1 DE3269709 D1 DE 3269709D1 DE 8282110801 T DE8282110801 T DE 8282110801T DE 3269709 T DE3269709 T DE 3269709T DE 3269709 D1 DE3269709 D1 DE 3269709D1
Authority
DE
Germany
Prior art keywords
telephonic
signalling
path
detection
data
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
Application number
DE8282110801T
Other languages
German (de)
English (en)
Inventor
Bergh Guy De
Jean-Claude Spiteri
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia 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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Application granted granted Critical
Publication of DE3269709D1 publication Critical patent/DE3269709D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
DE8282110801T 1981-11-27 1982-11-23 Method and device for the detection of data or of signalling on a telephonic path Expired DE3269709D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8122241A FR2517499A1 (fr) 1981-11-27 1981-11-27 Procede et dispositif de detection de signaux de donnees et de signalisation sur une voie telephonique

Publications (1)

Publication Number Publication Date
DE3269709D1 true DE3269709D1 (en) 1986-04-10

Family

ID=9264432

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282110801T Expired DE3269709D1 (en) 1981-11-27 1982-11-23 Method and device for the detection of data or of signalling on a telephonic path

Country Status (7)

Country Link
US (1) US4469916A (enExample)
EP (1) EP0080688B1 (enExample)
JP (1) JPS5899060A (enExample)
CA (1) CA1177587A (enExample)
DE (1) DE3269709D1 (enExample)
FR (1) FR2517499A1 (enExample)
IE (1) IE54876B1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121856A (ja) * 1983-12-06 1985-06-29 Nec Corp 単一周波数信号検出回路
US4571463A (en) * 1984-06-01 1986-02-18 Code-A-Phone Corporation Method and system for automatically inserting at least one pause into means for memorizing a dialing sequence
US4885755A (en) * 1985-04-10 1989-12-05 Canon Kabushiki Kaisha Method and apparatus for data communication
US4696031A (en) * 1985-12-31 1987-09-22 Wang Laboratories, Inc. Signal detection and discrimination using waveform peak factor
NO165369C (no) * 1988-05-02 1991-01-30 Informasjonskontroll A S Fremgangsmaate og mottaker for signaldeteksjon.
WO1994000944A1 (en) * 1992-06-30 1994-01-06 Polycom, Inc. Method and apparatus for ringer detection
JPH07123236B2 (ja) * 1992-12-18 1995-12-25 日本電気株式会社 双方向通話状態検出回路
US5631958A (en) * 1994-10-04 1997-05-20 Coherent Communications Systems Corp. Automatic echo cancellation for an integrated services digital network interface
US5764753A (en) * 1995-09-29 1998-06-09 Crystal Semiconductor Corp. Half-duplex controller
US7269288B2 (en) * 2003-07-30 2007-09-11 Mediatek Inc. Apparatus for parallel calculation of prediction bits in a spatially predicted coded block pattern and method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069501A (en) * 1958-08-20 1962-12-18 Bell Telephone Labor Inc Transmission control in two-way signaling systems
US3647993A (en) * 1970-05-18 1972-03-07 Wescom Tone disabler
FR2240583B1 (enExample) * 1973-08-08 1976-11-12 Cit Alcatel
US3859462A (en) * 1973-08-15 1975-01-07 Itt Arrangement to control a function at a remote location
JPS5622194B2 (enExample) * 1973-12-20 1981-05-23
US3979559A (en) * 1974-01-31 1976-09-07 Milgo Electronics Corporation Data modem having line verification and automatic disconnect features
CH633903A5 (de) * 1978-09-26 1982-12-31 Feller Ag Sprachschalter fuer ein an eine telefonleitung anzuschliessendes geraet.
US4352962A (en) * 1980-06-27 1982-10-05 Reliance Electric Company Tone responsive disabling circuit

Also Published As

Publication number Publication date
EP0080688B1 (fr) 1986-03-05
US4469916A (en) 1984-09-04
FR2517499A1 (fr) 1983-06-03
FR2517499B1 (enExample) 1984-01-27
IE54876B1 (en) 1990-03-14
CA1177587A (fr) 1984-11-06
EP0080688A1 (fr) 1983-06-08
JPS5899060A (ja) 1983-06-13
IE822823L (en) 1983-05-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition