JPS5617531A - Nonsignal noise suppressing system - Google Patents

Nonsignal noise suppressing system

Info

Publication number
JPS5617531A
JPS5617531A JP9341579A JP9341579A JPS5617531A JP S5617531 A JPS5617531 A JP S5617531A JP 9341579 A JP9341579 A JP 9341579A JP 9341579 A JP9341579 A JP 9341579A JP S5617531 A JPS5617531 A JP S5617531A
Authority
JP
Japan
Prior art keywords
output
repeater
output signal
signal
detecting means
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
JP9341579A
Other languages
Japanese (ja)
Other versions
JPS6342891B2 (en
Inventor
Shinji Kajiwara
Masami Mizuguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9341579A priority Critical patent/JPS5617531A/en
Publication of JPS5617531A publication Critical patent/JPS5617531A/en
Publication of JPS6342891B2 publication Critical patent/JPS6342891B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/12—Compensating for variations in line impedance

Landscapes

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

Abstract

PURPOSE:To prevent the repeater from transmitting the output signal in response to the faint noise input when no signal exists, by cutting off the output of the repeater when the output signal of the peak value detecting means exceeds a fixed level for the repeater with AGC. CONSTITUTION:The peak value of the waveform equalization output is detected by detecting means 12, and the value of variable impedance element 8 is changed by the output signal of the above detection. Then the equalization property of variable equivalent element 2 is controlled by element 8 in order to keep the output level nearly at a constant value although the level of the input signal may vary. In such repeater with AGC, the output of the repeater is cut off by the interruption deciding output signal of current monitoring means 13 which generates the interruption deciding output signal in case the current of the control signal corresponding to the output signal of peak value detecting means 12 exceeds a fixed level.
JP9341579A 1979-07-23 1979-07-23 Nonsignal noise suppressing system Granted JPS5617531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9341579A JPS5617531A (en) 1979-07-23 1979-07-23 Nonsignal noise suppressing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9341579A JPS5617531A (en) 1979-07-23 1979-07-23 Nonsignal noise suppressing system

Publications (2)

Publication Number Publication Date
JPS5617531A true JPS5617531A (en) 1981-02-19
JPS6342891B2 JPS6342891B2 (en) 1988-08-26

Family

ID=14081661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9341579A Granted JPS5617531A (en) 1979-07-23 1979-07-23 Nonsignal noise suppressing system

Country Status (1)

Country Link
JP (1) JPS5617531A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104331U (en) * 1982-01-08 1983-07-15 三菱自動車工業株式会社 Engine warm-up device
JPH039544U (en) * 1989-06-13 1991-01-29

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060910U (en) * 1973-10-02 1975-06-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060910U (en) * 1973-10-02 1975-06-05

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104331U (en) * 1982-01-08 1983-07-15 三菱自動車工業株式会社 Engine warm-up device
JPH03499Y2 (en) * 1982-01-08 1991-01-10
JPH039544U (en) * 1989-06-13 1991-01-29

Also Published As

Publication number Publication date
JPS6342891B2 (en) 1988-08-26

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