HK37385A - A voltage controlled variable gain circuit and a signal transmission circuit incorporating same - Google Patents

A voltage controlled variable gain circuit and a signal transmission circuit incorporating same

Info

Publication number
HK37385A
HK37385A HK373/85A HK37385A HK37385A HK 37385 A HK37385 A HK 37385A HK 373/85 A HK373/85 A HK 373/85A HK 37385 A HK37385 A HK 37385A HK 37385 A HK37385 A HK 37385A
Authority
HK
Hong Kong
Prior art keywords
signal transmission
voltage controlled
variable gain
controlled variable
incorporating same
Prior art date
Application number
HK373/85A
Other languages
English (en)
Inventor
Tetsuo Sato
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of HK37385A publication Critical patent/HK37385A/xx

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
    • 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
    • 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
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
HK373/85A 1979-06-11 1985-05-16 A voltage controlled variable gain circuit and a signal transmission circuit incorporating same HK37385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7229079A JPS55165009A (en) 1979-06-11 1979-06-11 Signal transmission circuit

Publications (1)

Publication Number Publication Date
HK37385A true HK37385A (en) 1985-05-24

Family

ID=13484987

Family Applications (1)

Application Number Title Priority Date Filing Date
HK373/85A HK37385A (en) 1979-06-11 1985-05-16 A voltage controlled variable gain circuit and a signal transmission circuit incorporating same

Country Status (8)

Country Link
US (1) US4366449A (ja)
JP (1) JPS55165009A (ja)
DE (1) DE3021788A1 (ja)
GB (1) GB2053598B (ja)
HK (1) HK37385A (ja)
IT (1) IT1209231B (ja)
MY (1) MY8500833A (ja)
SG (1) SG63184G (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024142A1 (de) * 1980-06-27 1982-01-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung mit zwei ueber kreuz gekoppelten differenzverstaerkern
JPS5728410A (en) * 1980-07-28 1982-02-16 Sony Corp Voltage controlled type variable gain circuit
DE3204217A1 (de) * 1982-02-08 1983-08-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltung zur elektronischen verstaerkungsstellung
DE3525655C1 (de) * 1985-07-18 1986-11-27 ANT Nachrichtentechnik GmbH, 7150 Backnang Verstaerker fuer erdsymmetrische,elektrische Signale,mit Kompressor- und/oder Expanderfunktion
JPS6434008A (en) * 1987-07-30 1989-02-03 Matsushita Electric Ind Co Ltd Device for negating distortion in voltage controlled amplifier
DE4235584A1 (de) * 1992-10-22 1994-04-28 Nokia Deutschland Gmbh Stellbarer elektronischer Widerstand
US5949288A (en) * 1996-07-25 1999-09-07 Endress + Hauser Gmbh + Co. Circuit arrangement with an operational amplifier
EP0822656B1 (de) * 1996-07-25 1998-12-30 ENVEC Mess- und Regeltechnik GmbH + Co. Schaltungsanordnung mit einem Operationsverstärker
US11524350B1 (en) * 2021-10-04 2022-12-13 General Electric Company Backwall strike braze repair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197710A (en) * 1963-05-31 1965-07-27 Westinghouse Electric Corp Complementary transistor structure
JPS48101859A (ja) * 1972-04-03 1973-12-21
US4155047A (en) * 1978-01-11 1979-05-15 Baskind David Lee Voltage controlled attenuator

Also Published As

Publication number Publication date
JPS55165009A (en) 1980-12-23
GB2053598B (en) 1983-12-14
DE3021788A1 (de) 1980-12-18
JPS6217891B2 (ja) 1987-04-20
SG63184G (en) 1985-09-13
IT1209231B (it) 1989-07-16
US4366449A (en) 1982-12-28
MY8500833A (en) 1985-12-31
GB2053598A (en) 1981-02-04
IT8022665A0 (it) 1980-06-09

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