JPS5437411A - Digital echo supressor - Google Patents

Digital echo supressor

Info

Publication number
JPS5437411A
JPS5437411A JP10333677A JP10333677A JPS5437411A JP S5437411 A JPS5437411 A JP S5437411A JP 10333677 A JP10333677 A JP 10333677A JP 10333677 A JP10333677 A JP 10333677A JP S5437411 A JPS5437411 A JP S5437411A
Authority
JP
Japan
Prior art keywords
supressor
digital echo
comparator
combining
stability
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
JP10333677A
Other languages
Japanese (ja)
Other versions
JPS5761221B2 (en
Inventor
Eijiro Hishida
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10333677A priority Critical patent/JPS5437411A/en
Publication of JPS5437411A publication Critical patent/JPS5437411A/en
Publication of JPS5761221B2 publication Critical patent/JPS5761221B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To obtain a high-speed and high-performance digital echo suppressor featuring high accuracy and stability by using the aural signal detecting circuit formed by combining the comparator and the switch to the cyclic digital filter.
JP10333677A 1977-08-29 1977-08-29 Digital echo supressor Granted JPS5437411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10333677A JPS5437411A (en) 1977-08-29 1977-08-29 Digital echo supressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10333677A JPS5437411A (en) 1977-08-29 1977-08-29 Digital echo supressor

Publications (2)

Publication Number Publication Date
JPS5437411A true JPS5437411A (en) 1979-03-19
JPS5761221B2 JPS5761221B2 (en) 1982-12-23

Family

ID=14351303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10333677A Granted JPS5437411A (en) 1977-08-29 1977-08-29 Digital echo supressor

Country Status (1)

Country Link
JP (1) JPS5437411A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6117695A (en) * 1984-07-04 1986-01-25 東京瓦斯株式会社 Horizontal hole drilling construction method for embedding pipe
JPS6117690A (en) * 1984-07-04 1986-01-25 東京瓦斯株式会社 Drilling of horizontal hole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6117695A (en) * 1984-07-04 1986-01-25 東京瓦斯株式会社 Horizontal hole drilling construction method for embedding pipe
JPS6117690A (en) * 1984-07-04 1986-01-25 東京瓦斯株式会社 Drilling of horizontal hole
JPH0135154B2 (en) * 1984-07-04 1989-07-24 Tokyo Gasu Kk
JPH0362877B2 (en) * 1984-07-04 1991-09-27 Tokyo Gasu Kk

Also Published As

Publication number Publication date
JPS5761221B2 (en) 1982-12-23

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