JPS56166647A - Echo canceler - Google Patents

Echo canceler

Info

Publication number
JPS56166647A
JPS56166647A JP7029980A JP7029980A JPS56166647A JP S56166647 A JPS56166647 A JP S56166647A JP 7029980 A JP7029980 A JP 7029980A JP 7029980 A JP7029980 A JP 7029980A JP S56166647 A JPS56166647 A JP S56166647A
Authority
JP
Japan
Prior art keywords
echo
transmission
digital signal
output
filter
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
JP7029980A
Other languages
English (en)
Other versions
JPS6251530B2 (ja
Inventor
Taku Arazeki
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
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 JP7029980A priority Critical patent/JPS56166647A/ja
Publication of JPS56166647A publication Critical patent/JPS56166647A/ja
Publication of JPS6251530B2 publication Critical patent/JPS6251530B2/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)
JP7029980A 1980-05-27 1980-05-27 Echo canceler Granted JPS56166647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7029980A JPS56166647A (en) 1980-05-27 1980-05-27 Echo canceler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7029980A JPS56166647A (en) 1980-05-27 1980-05-27 Echo canceler

Publications (2)

Publication Number Publication Date
JPS56166647A true JPS56166647A (en) 1981-12-21
JPS6251530B2 JPS6251530B2 (ja) 1987-10-30

Family

ID=13427433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7029980A Granted JPS56166647A (en) 1980-05-27 1980-05-27 Echo canceler

Country Status (1)

Country Link
JP (1) JPS56166647A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048979A2 (en) * 1980-09-26 1982-04-07 Nec Corporation Echo canceller for a long-distance telephone network
JPS61126830A (ja) * 1984-11-22 1986-06-14 Nec Corp 信号伝送方式

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220002432A (ko) 2019-05-31 2022-01-06 후지필름 가부시키가이샤 광 센서 및 센싱 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048979A2 (en) * 1980-09-26 1982-04-07 Nec Corporation Echo canceller for a long-distance telephone network
JPS61126830A (ja) * 1984-11-22 1986-06-14 Nec Corp 信号伝送方式

Also Published As

Publication number Publication date
JPS6251530B2 (ja) 1987-10-30

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