JPS6242528B2 - - Google Patents

Info

Publication number
JPS6242528B2
JPS6242528B2 JP7943379A JP7943379A JPS6242528B2 JP S6242528 B2 JPS6242528 B2 JP S6242528B2 JP 7943379 A JP7943379 A JP 7943379A JP 7943379 A JP7943379 A JP 7943379A JP S6242528 B2 JPS6242528 B2 JP S6242528B2
Authority
JP
Japan
Prior art keywords
output
detector
beat
low
pass filter
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
JP7943379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS562720A (en
Inventor
Mitsuo Isobe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7943379A priority Critical patent/JPS562720A/ja
Priority to GB8019693A priority patent/GB2053599B/en
Priority to US06/160,325 priority patent/US4360929A/en
Publication of JPS562720A publication Critical patent/JPS562720A/ja
Publication of JPS6242528B2 publication Critical patent/JPS6242528B2/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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • 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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP7943379A 1979-06-22 1979-06-22 Agc unit Granted JPS562720A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7943379A JPS562720A (en) 1979-06-22 1979-06-22 Agc unit
GB8019693A GB2053599B (en) 1979-06-22 1980-06-17 Automatic gain control circuit
US06/160,325 US4360929A (en) 1979-06-22 1980-06-17 Automatic gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7943379A JPS562720A (en) 1979-06-22 1979-06-22 Agc unit

Publications (2)

Publication Number Publication Date
JPS562720A JPS562720A (en) 1981-01-13
JPS6242528B2 true JPS6242528B2 (enrdf_load_stackoverflow) 1987-09-09

Family

ID=13689737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7943379A Granted JPS562720A (en) 1979-06-22 1979-06-22 Agc unit

Country Status (1)

Country Link
JP (1) JPS562720A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS562720A (en) 1981-01-13

Similar Documents

Publication Publication Date Title
CS268511B2 (en) Circuit for automatic control of gain at device for signal processing
US5564093A (en) Frequency modulation receiving apparatus having two intermediate-frequency band pass filters
RU2140705C1 (ru) Каскад усилителя с регулируемым усилением, усилитель с регулируемым усилением, телевизионный приемник
JPS62231548A (ja) 周波数被変調信号用受信機
RU2124276C1 (ru) Комбинация детектора и частотно-избирательного фильтра
US5457500A (en) Color TV receiver using quadrature-phase synchronous detector for supplying signal to chrominance circuitry
EP0281175B1 (en) Clamping circuit for a television transmission system
US4172239A (en) Signal attenuator
JPH0730824A (ja) ディジタル放送受信機
US6094229A (en) IF signal processing circuit for video signal and sound system form in one integrated circuit
JPS6242528B2 (enrdf_load_stackoverflow)
US4237490A (en) Signal overload prevention circuit
US4271535A (en) Noise eliminating system
US5563538A (en) Control circuit for clock multiplier
GB2090499A (en) Sync separator
US4605908A (en) Disable circuit for a phase locked loop discriminator circuit
EP0398351B1 (en) Apparatus for detecting broadcast FM satellite waves
KR100241764B1 (ko) 고화질 텔레비젼용 자동이득 제어장치
JPS62293Y2 (enrdf_load_stackoverflow)
KR100276472B1 (ko) 고화질 텔레비젼의 자동이득 제어방법
JPS6259951B2 (enrdf_load_stackoverflow)
JP3479369B2 (ja) ノイズ除去機能を持つ受信装置
JPH08242143A (ja) チューニング回路
JP2894112B2 (ja) 位相同期受信回路
EP1584169A4 (en) AGC CIRCUIT ARRANGEMENT FOR A TUNER