CA1027242A - Circuit de commande automatique de gain compatible avec les blocs d'accord vhf et uhf des televiseurs - Google Patents

Circuit de commande automatique de gain compatible avec les blocs d'accord vhf et uhf des televiseurs

Info

Publication number
CA1027242A
CA1027242A CA200,036A CA200036A CA1027242A CA 1027242 A CA1027242 A CA 1027242A CA 200036 A CA200036 A CA 200036A CA 1027242 A CA1027242 A CA 1027242A
Authority
CA
Canada
Prior art keywords
tuner
automatic gain
circuitry providing
control circuitry
gain control
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
CA200,036A
Other languages
English (en)
Other versions
CA200036S (fr
Inventor
John B. George
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA1027242A publication Critical patent/CA1027242A/fr
Expired 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
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
CA200,036A 1973-05-21 1974-05-15 Circuit de commande automatique de gain compatible avec les blocs d'accord vhf et uhf des televiseurs Expired CA1027242A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00362644A US3823379A (en) 1973-05-21 1973-05-21 Television automatic gain control circuitry providing for compatible control of vhf tuner and uhf tuner

Publications (1)

Publication Number Publication Date
CA1027242A true CA1027242A (fr) 1978-02-28

Family

ID=23426948

Family Applications (1)

Application Number Title Priority Date Filing Date
CA200,036A Expired CA1027242A (fr) 1973-05-21 1974-05-15 Circuit de commande automatique de gain compatible avec les blocs d'accord vhf et uhf des televiseurs

Country Status (2)

Country Link
US (1) US3823379A (fr)
CA (1) CA1027242A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028628A (en) * 1975-12-05 1977-06-07 Bell Telephone Laboratories, Incorporated Transceivers for single channel carrier telephone systems
US4558289A (en) * 1983-12-23 1985-12-10 Rca Corporation Bias and AGC control of two RF amplifiers with a shared control element
JP3335079B2 (ja) * 1996-07-01 2002-10-15 シャープ株式会社 Ａｇｃ回路
US8320857B2 (en) * 2009-04-15 2012-11-27 Broadcom Corporation Method and system for loop through for multi-band TV tuners and set-top box and/or TV set applications

Also Published As

Publication number Publication date
US3823379A (en) 1974-07-09

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