CA1033086A - Suppresseur d'echo a adaptation automatique - Google Patents

Suppresseur d'echo a adaptation automatique

Info

Publication number
CA1033086A
CA1033086A CA234,172A CA234172A CA1033086A CA 1033086 A CA1033086 A CA 1033086A CA 234172 A CA234172 A CA 234172A CA 1033086 A CA1033086 A CA 1033086A
Authority
CA
Canada
Prior art keywords
self
echo suppressor
adaptive means
adaptive
suppressor
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
CA234,172A
Other languages
English (en)
Inventor
Takashi Araseki
Kazuo Ochiai
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 JP9753374A external-priority patent/JPS5127013A/ja
Priority claimed from JP3727775A external-priority patent/JPS51112108A/ja
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Application granted granted Critical
Publication of CA1033086A publication Critical patent/CA1033086A/fr
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)
  • Interface Circuits In Exchanges (AREA)
CA234,172A 1974-08-27 1975-08-26 Suppresseur d'echo a adaptation automatique Expired CA1033086A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9753374A JPS5127013A (ja) 1974-08-27 1974-08-27 Deijitaruhankyososhisochi
JP3727775A JPS51112108A (en) 1975-03-27 1975-03-27 Adaptive echo suppressing system

Publications (1)

Publication Number Publication Date
CA1033086A true CA1033086A (fr) 1978-06-13

Family

ID=26376418

Family Applications (1)

Application Number Title Priority Date Filing Date
CA234,172A Expired CA1033086A (fr) 1974-08-27 1975-08-26 Suppresseur d'echo a adaptation automatique

Country Status (3)

Country Link
US (1) US4012603A (fr)
CA (1) CA1033086A (fr)
FR (1) FR2283604A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469054A1 (fr) * 1979-10-31 1981-05-08 Cit Alcatel Dispositif de mesure de l'attenuation d'un trajet de transmission
US4644108A (en) * 1982-10-27 1987-02-17 International Business Machines Corporation Adaptive sub-band echo suppressor
EP0179998B1 (fr) * 1984-09-28 1988-11-17 Siemens Aktiengesellschaft Circuit pour ajuster un compensateur d'écho
US4712235A (en) * 1984-11-19 1987-12-08 International Business Machines Corporation Method and apparatus for improved control and time sharing of an echo canceller
US4748665A (en) * 1985-07-01 1988-05-31 Rockwell International Corporation Analog echo suppressor
GB8621758D0 (en) * 1986-09-10 1986-10-15 Cass Group Plc Call devices
US6853644B1 (en) * 1999-12-22 2005-02-08 Intel Corporation Method and apparatus for driving data packets
US7542761B2 (en) * 2004-10-06 2009-06-02 At&T Mobility Ii Llc Voice quality on a communication link based on customer feedback
US9463816B2 (en) 2013-08-23 2016-10-11 Electro-Motive Diesel, Inc. Trainline communication network access point including filter
US9688295B2 (en) 2013-08-23 2017-06-27 Electro-Motive Diesel, Inc. Trainline network access point for parallel communication
US9260123B2 (en) 2013-08-23 2016-02-16 Electro-Motive Diesel, Inc. System and method for determining locomotive position in a consist
US9270335B2 (en) 2013-08-23 2016-02-23 Electro-Motive Diesel, Inc. Receive attenuation system for trainline communication networks
US9744979B2 (en) 2014-04-11 2017-08-29 Electro-Motive Diesel, Inc. Train communication network
US9560139B2 (en) 2014-04-11 2017-01-31 Electro-Motive Diesel, Inc. Train communication network

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560669A (en) * 1969-02-25 1971-02-02 Wescom Echo suppressor
US3896273A (en) * 1971-01-08 1975-07-22 Communications Satellite Corp Digital echo suppressor
US3823275A (en) * 1972-08-10 1974-07-09 Bell Telephone Labor Inc Common control digital echo suppressor

Also Published As

Publication number Publication date
US4012603A (en) 1977-03-15
FR2283604A1 (fr) 1976-03-26
FR2283604B1 (fr) 1980-05-16

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