JPH0137884B2 - - Google Patents

Info

Publication number
JPH0137884B2
JPH0137884B2 JP55125480A JP12548080A JPH0137884B2 JP H0137884 B2 JPH0137884 B2 JP H0137884B2 JP 55125480 A JP55125480 A JP 55125480A JP 12548080 A JP12548080 A JP 12548080A JP H0137884 B2 JPH0137884 B2 JP H0137884B2
Authority
JP
Japan
Prior art keywords
transistors
current
signal
gain control
transistor
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
JP55125480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5750115A (en
Inventor
Kazuo Tokuda
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP12548080A priority Critical patent/JPS5750115A/ja
Publication of JPS5750115A publication Critical patent/JPS5750115A/ja
Publication of JPH0137884B2 publication Critical patent/JPH0137884B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP12548080A 1980-09-10 1980-09-10 Gain control circuit Granted JPS5750115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12548080A JPS5750115A (en) 1980-09-10 1980-09-10 Gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12548080A JPS5750115A (en) 1980-09-10 1980-09-10 Gain control circuit

Publications (2)

Publication Number Publication Date
JPS5750115A JPS5750115A (en) 1982-03-24
JPH0137884B2 true JPH0137884B2 (US20100268047A1-20101021-C00003.png) 1989-08-10

Family

ID=14911127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12548080A Granted JPS5750115A (en) 1980-09-10 1980-09-10 Gain control circuit

Country Status (1)

Country Link
JP (1) JPS5750115A (US20100268047A1-20101021-C00003.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185411A (ja) * 1984-03-02 1985-09-20 Fujitsu Ltd 利得可変増巾回路
JP2656768B2 (ja) * 1986-02-05 1997-09-24 日本電信電話株式会社 マルチメデイアメール配送制御方式
JPS62171214U (US20100268047A1-20101021-C00003.png) * 1986-04-18 1987-10-30

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128251A (en) * 1978-03-29 1979-10-04 Hitachi Ltd Mute circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128251A (en) * 1978-03-29 1979-10-04 Hitachi Ltd Mute circuit

Also Published As

Publication number Publication date
JPS5750115A (en) 1982-03-24

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