DE3125199C2 - - Google Patents

Info

Publication number
DE3125199C2
DE3125199C2 DE3125199A DE3125199A DE3125199C2 DE 3125199 C2 DE3125199 C2 DE 3125199C2 DE 3125199 A DE3125199 A DE 3125199A DE 3125199 A DE3125199 A DE 3125199A DE 3125199 C2 DE3125199 C2 DE 3125199C2
Authority
DE
Germany
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
DE3125199A
Other languages
German (de)
Other versions
DE3125199A1 (de
Inventor
Jack Rudolph Flemington N.J. Us Harford
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 Licensing 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
Publication of DE3125199A1 publication Critical patent/DE3125199A1/de
Application granted granted Critical
Publication of DE3125199C2 publication Critical patent/DE3125199C2/de
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
    • H03G3/3063—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 using at least one transistor as controlling device, the transistor being used as a variable impedance device
DE19813125199 1980-06-26 1981-06-26 Fernseh-zwischenfrequenzverstaerker Granted DE3125199A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/163,143 US4366443A (en) 1980-06-26 1980-06-26 Television intermediate frequency amplifier

Publications (2)

Publication Number Publication Date
DE3125199A1 DE3125199A1 (de) 1982-04-01
DE3125199C2 true DE3125199C2 ( ) 1987-04-30

Family

ID=22588672

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813125199 Granted DE3125199A1 (de) 1980-06-26 1981-06-26 Fernseh-zwischenfrequenzverstaerker

Country Status (9)

Country Link
US (1) US4366443A ( )
JP (1) JPS5744310A ( )
AT (1) AT395501B ( )
AU (1) AU539565B2 ( )
CA (1) CA1168320A ( )
DE (1) DE3125199A1 ( )
FR (1) FR2485848B1 ( )
GB (1) GB2079078B ( )
IT (1) IT1136891B ( )

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342005A (en) * 1980-06-26 1982-07-27 Rca Corporation Television intermediate frequency amplifier with feedback stabilization
JPS6022814A (ja) * 1983-07-19 1985-02-05 Nec Corp 集積回路
US5305109A (en) * 1992-09-08 1994-04-19 Samsung Electronics Co., Ltd. Parallel untuned video if amplifiers supplied signals from TV 1st detector via respective input filters
US5365279A (en) * 1992-09-08 1994-11-15 Samsung Electronics Co., Ltd. Using D-C feedback with on-chip filtering to balance I-F drive to second detector in monolithic IC
US5471665A (en) * 1994-10-18 1995-11-28 Motorola, Inc. Differential DC offset compensation circuit
US11735902B2 (en) 2020-03-24 2023-08-22 Analog Devices International Unlimited Company Bipolar junction transistor heater circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB673258A (en) * 1949-05-28 1952-06-04 Rca Corp Improvements in signal amplitude control systems employing semi-conductor devices
GB936629A (en) * 1960-10-03 1963-09-11 Secr Aviation Improvements in and relating to amplifiers employing transistors
DE1192703B (de) * 1964-01-04 1965-05-13 Standard Elektrik Lorenz Ag Schaltungsanordnung zur Auf- und Abwaertsregelung eines zweistufigen Transistorverstaerkers
US3331028A (en) * 1965-01-21 1967-07-11 Avco Corp Multistage transistor amplifier in which the impedances of the various stages are successively varied to control gain
US3641450A (en) * 1970-12-15 1972-02-08 Motorola Inc Gain controlled differential amplifier circuit
JPS52153651A (en) * 1976-06-17 1977-12-20 Sony Corp Gain changing circuit

Also Published As

Publication number Publication date
ATA286381A (de) 1992-05-15
AU539565B2 (en) 1984-10-04
IT1136891B (it) 1986-09-03
CA1168320A (en) 1984-05-29
AT395501B (de) 1993-01-25
JPS6335121B2 ( ) 1988-07-13
JPS5744310A (en) 1982-03-12
FR2485848B1 (fr) 1985-10-25
AU7198881A (en) 1982-01-07
IT8122497A0 (it) 1981-06-22
DE3125199A1 (de) 1982-04-01
FR2485848A1 (fr) 1981-12-31
GB2079078A (en) 1982-01-13
GB2079078B (en) 1984-03-07
US4366443A (en) 1982-12-28

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: RCA LICENSING CORP., PRINCETON, N.J., US