JPS5760742A - Adaptive echo erasing device - Google Patents

Adaptive echo erasing device

Info

Publication number
JPS5760742A
JPS5760742A JP13401080A JP13401080A JPS5760742A JP S5760742 A JPS5760742 A JP S5760742A JP 13401080 A JP13401080 A JP 13401080A JP 13401080 A JP13401080 A JP 13401080A JP S5760742 A JPS5760742 A JP S5760742A
Authority
JP
Japan
Prior art keywords
signal
echo
converter
subtractor
analogue
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.)
Granted
Application number
JP13401080A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6258574B2 (enrdf_load_stackoverflow
Inventor
Mutsuya Tajima
Hidenori Ito
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
NEC Corp
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
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13401080A priority Critical patent/JPS5760742A/ja
Publication of JPS5760742A publication Critical patent/JPS5760742A/ja
Publication of JPS6258574B2 publication Critical patent/JPS6258574B2/ja
Granted 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)
JP13401080A 1980-09-26 1980-09-26 Adaptive echo erasing device Granted JPS5760742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13401080A JPS5760742A (en) 1980-09-26 1980-09-26 Adaptive echo erasing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13401080A JPS5760742A (en) 1980-09-26 1980-09-26 Adaptive echo erasing device

Publications (2)

Publication Number Publication Date
JPS5760742A true JPS5760742A (en) 1982-04-12
JPS6258574B2 JPS6258574B2 (enrdf_load_stackoverflow) 1987-12-07

Family

ID=15118262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13401080A Granted JPS5760742A (en) 1980-09-26 1980-09-26 Adaptive echo erasing device

Country Status (1)

Country Link
JP (1) JPS5760742A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6258574B2 (enrdf_load_stackoverflow) 1987-12-07

Similar Documents

Publication Publication Date Title
KR840003950A (ko) 디지탈 자동 이득 제어장치
ATE38753T1 (de) Echokompensatorsysteme.
EP0578021A3 (en) Hearing aid
JPS5760742A (en) Adaptive echo erasing device
JPS5742242A (en) Two-wire type bidirectional amplifier system
JPS54100763A (en) Digital meter
JPS572115A (en) Digital filter device
JPS5735457A (en) Loudspeaker telephone set system
SE8404228D0 (sv) Telefonkrets
JPS5767853A (en) Method for standardization of ae signal and discrimination of ae signal source
CA2072393A1 (en) Variable delay device
JPS57182186A (en) Ultrasonic picture device
JPS5744867A (en) Measuring device for charge coupled element
JPS5731045A (en) Digital integrator for bipolar signal
DE3473510D1 (en) Evaluation of sound signals converted into electrical signals
JPS5742241A (en) Echo erasion type two-wire bidirectional amplifier
JPS5795728A (en) Impulse noise eliminating device
JPS5779772A (en) Fadar circuit
JPS5440016A (en) Fail soft receiving high frequency amplifier
JPS5789337A (en) Echo erasing device
JPS6429132A (en) Echo canceller
JPS547920A (en) Control system for electronic instrument
JPS5468102A (en) Sound reinforcement system
ATE34T1 (de) Echosperre
JPS5739670A (en) Intermediate tone expressing system