JPS5637739B2 - - Google Patents

Info

Publication number
JPS5637739B2
JPS5637739B2 JP1650072A JP1650072A JPS5637739B2 JP S5637739 B2 JPS5637739 B2 JP S5637739B2 JP 1650072 A JP1650072 A JP 1650072A JP 1650072 A JP1650072 A JP 1650072A JP S5637739 B2 JPS5637739 B2 JP S5637739B2
Authority
JP
Japan
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
JP1650072A
Other languages
Japanese (ja)
Other versions
JPS4887709A (cg-RX-API-DMAC10.html
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 filed Critical
Priority to JP1650072A priority Critical patent/JPS5637739B2/ja
Priority to US00333469A priority patent/US3828147A/en
Publication of JPS4887709A publication Critical patent/JPS4887709A/ja
Publication of JPS5637739B2 publication Critical patent/JPS5637739B2/ja
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
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP1650072A 1972-02-18 1972-02-18 Expired JPS5637739B2 (cg-RX-API-DMAC10.html)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1650072A JPS5637739B2 (cg-RX-API-DMAC10.html) 1972-02-18 1972-02-18
US00333469A US3828147A (en) 1972-02-18 1973-02-20 Echo canceller arrangement comprising quasi-static echo cancellers and a smaller number of self-adaptive echo cancellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1650072A JPS5637739B2 (cg-RX-API-DMAC10.html) 1972-02-18 1972-02-18

Publications (2)

Publication Number Publication Date
JPS4887709A JPS4887709A (cg-RX-API-DMAC10.html) 1973-11-17
JPS5637739B2 true JPS5637739B2 (cg-RX-API-DMAC10.html) 1981-09-02

Family

ID=11917984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1650072A Expired JPS5637739B2 (cg-RX-API-DMAC10.html) 1972-02-18 1972-02-18

Country Status (2)

Country Link
US (1) US3828147A (cg-RX-API-DMAC10.html)
JP (1) JPS5637739B2 (cg-RX-API-DMAC10.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63188349U (cg-RX-API-DMAC10.html) * 1987-05-28 1988-12-02

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50144314A (cg-RX-API-DMAC10.html) * 1974-05-09 1975-11-20
JPS51144111A (en) * 1975-06-05 1976-12-10 Kokusai Denshin Denwa Co Ltd <Kdd> Echo cancelling method
JPS5737937A (en) * 1980-08-15 1982-03-02 Hitachi Ltd Automatic hybrid circuit
US4628156A (en) * 1982-12-27 1986-12-09 International Business Machines Corporation Canceller trained echo suppressor
US4554417A (en) * 1983-02-04 1985-11-19 At&T Bell Laboratories Tandem adaptive echo canceler arrangement
US4574166A (en) * 1983-02-04 1986-03-04 At&T Bell Laboratories Tandem adaptive filter arrangement
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
WO1993005597A1 (en) * 1991-08-30 1993-03-18 Digital Sound Corporation Adaptive echo canceller for voice messaging system
US6799062B1 (en) 2000-10-19 2004-09-28 Motorola Inc. Full-duplex hands-free transparency circuit and method therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816153B2 (de) * 1968-12-20 1971-04-15 Schaltungsanordnung zur echounterdrueckung in einem sprech kreis auf einem vierdraht uebertragungssystem bei einem uebergang auf einen zweidrahtuebertragungsweg
US3647992A (en) * 1970-03-05 1972-03-07 Bell Telephone Labor Inc Adaptive echo canceller for nonlinear systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63188349U (cg-RX-API-DMAC10.html) * 1987-05-28 1988-12-02

Also Published As

Publication number Publication date
JPS4887709A (cg-RX-API-DMAC10.html) 1973-11-17
US3828147A (en) 1974-08-06

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