JPS5389344A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS5389344A
JPS5389344A JP354777A JP354777A JPS5389344A JP S5389344 A JPS5389344 A JP S5389344A JP 354777 A JP354777 A JP 354777A JP 354777 A JP354777 A JP 354777A JP S5389344 A JPS5389344 A JP S5389344A
Authority
JP
Japan
Prior art keywords
amplifier
amplifying circuit
amplification
memorizing
gain
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.)
Pending
Application number
JP354777A
Other languages
Japanese (ja)
Inventor
Shoichi Abe
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 JP354777A priority Critical patent/JPS5389344A/en
Publication of JPS5389344A publication Critical patent/JPS5389344A/en
Pending 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

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To make the amplifier suitable for the amplification of the reception signal of the electric attendant board, by memorizing the amplification degree of the amplifier dependent on the strength of the reception level, and by keeping the gain of the amplifier at a suitable value even with no communication, so that the increase in noise is prevented.
JP354777A 1977-01-18 1977-01-18 Amplifying circuit Pending JPS5389344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP354777A JPS5389344A (en) 1977-01-18 1977-01-18 Amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP354777A JPS5389344A (en) 1977-01-18 1977-01-18 Amplifying circuit

Publications (1)

Publication Number Publication Date
JPS5389344A true JPS5389344A (en) 1978-08-05

Family

ID=11560435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP354777A Pending JPS5389344A (en) 1977-01-18 1977-01-18 Amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5389344A (en)

Similar Documents

Publication Publication Date Title
CA2154877A1 (en) Radio telephone equipment
JPS5389344A (en) Amplifying circuit
JPS5546672A (en) Transistor amplifier circuit
JPS5437664A (en) Automatic gain adjusting circuit
JPS5468102A (en) Sound reinforcement system
JPS5422811A (en) Amplifier
JPS5434660A (en) Limiter circuit
JPS535553A (en) Amplifier
JPS56146381A (en) Television voice receiving device
JPS53110353A (en) Amplifier
JPS53125709A (en) Agc circuit
JPS5370480A (en) Photo agc system
JPS5370479A (en) Photo agc system
JPS5440016A (en) Fail soft receiving high frequency amplifier
JPS53149715A (en) Correcting device for contour
JPS5385140A (en) Amplifier
JPS52139343A (en) Agc circuit
JPS53139414A (en) Squelch circuit system for fm receiver
JPS57100362A (en) Ultrasonic wave measuring device
JPS5432953A (en) Automatic gain control circuit
JPS5255415A (en) Anti-side tone circuit
JPS5698011A (en) Automatic gain controller of loran receiver
JPS5647112A (en) Am receiver
JPS543450A (en) Variable gain amplifier circuit
JPS52124844A (en) Interstage circuit of transistor negative feedback amplifier