JPH0151217B2 - - Google Patents

Info

Publication number
JPH0151217B2
JPH0151217B2 JP8694381A JP8694381A JPH0151217B2 JP H0151217 B2 JPH0151217 B2 JP H0151217B2 JP 8694381 A JP8694381 A JP 8694381A JP 8694381 A JP8694381 A JP 8694381A JP H0151217 B2 JPH0151217 B2 JP H0151217B2
Authority
JP
Japan
Prior art keywords
switch
muting
sensitivity
circuit
reducing 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.)
Expired
Application number
JP8694381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57202136A (en
Inventor
Akinori Maeda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8694381A priority Critical patent/JPS57202136A/ja
Publication of JPS57202136A publication Critical patent/JPS57202136A/ja
Publication of JPH0151217B2 publication Critical patent/JPH0151217B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems

Landscapes

  • Noise Elimination (AREA)
JP8694381A 1981-06-08 1981-06-08 Muting circuit Granted JPS57202136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8694381A JPS57202136A (en) 1981-06-08 1981-06-08 Muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8694381A JPS57202136A (en) 1981-06-08 1981-06-08 Muting circuit

Publications (2)

Publication Number Publication Date
JPS57202136A JPS57202136A (en) 1982-12-10
JPH0151217B2 true JPH0151217B2 (US08063081-20111122-C00044.png) 1989-11-02

Family

ID=13900947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8694381A Granted JPS57202136A (en) 1981-06-08 1981-06-08 Muting circuit

Country Status (1)

Country Link
JP (1) JPS57202136A (US08063081-20111122-C00044.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100378121B1 (ko) * 1999-12-29 2003-03-29 삼성전자주식회사 이동 통신시스템의 상호변조 제어 장치 및 방법

Also Published As

Publication number Publication date
JPS57202136A (en) 1982-12-10

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