IT1044102B - Amplificatore di segnali a guadagno controllabile - Google Patents

Amplificatore di segnali a guadagno controllabile

Info

Publication number: IT1044102B
Authority: IT; Italy
Prior art keywords: signal amplifier; gain signal; controllable gain; controllable; amplifier
Prior art date: 1974-12-06

Application number

IT28891/75A

Other languages

English (en)

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.)

1974-12-06

Filing date

1975-10-31

Publication date

1980-03-20

1975-10-31 Application filed by Rca Corp filed Critical Rca Corp

1980-03-20 Application granted granted Critical

1980-03-20 Publication of IT1044102B publication Critical patent/IT1044102B/it

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
- 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
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Processing Of Color Television Signals (AREA)
Control Of Amplification And Gain Control (AREA)
Amplifiers (AREA)

IT28891/75A 1974-12-06 1975-10-31 Amplificatore di segnali a guadagno controllabile IT1044102B (it)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/530,405 US3970948A (en)	1974-12-06	1974-12-06	Controller gain signal amplifier
US05/607,489 US3999141A (en)	1974-12-06	1975-08-25	Controllable gain signal amplifier

Publications (1)

Publication Number	Publication Date
IT1044102B true IT1044102B (it)	1980-03-20

Family

ID=27063257

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT28891/75A IT1044102B (it)	1974-12-06	1975-10-31	Amplificatore di segnali a guadagno controllabile

Country Status (13)

Country	Link
US (2)	US3970948A (it)
JP (1)	JPS5183455A (it)
AT (1)	AT352800B (it)
AU (1)	AU497506B2 (it)
BE (1)	BE836242A (it)
CA (2)	CA1038048A (it)
DE (1)	DE2554880B2 (it)
FI (1)	FI753370A (it)
FR (1)	FR2293843A1 (it)
GB (1)	GB1524715A (it)
IT (1)	IT1044102B (it)
NL (1)	NL7514219A (it)
SE (1)	SE413065B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5320844A (en) *	1976-08-11	1978-02-25	Hitachi Ltd	Gain control circuit
US4155047A (en) *	1978-01-11	1979-05-15	Baskind David Lee	Voltage controlled attenuator
US4318051A (en) *	1980-01-15	1982-03-02	Rca Corporation	Symmetrically gain controlled differential amplifier
US4404429A (en) *	1981-05-07	1983-09-13	Rca Corporation	Matching volume control characteristics for two channels
US4426625A (en) *	1981-08-27	1984-01-17	Rca Corporation	Circuit for linearly gain controlling a differential amplifier
JP4042736B2 (ja) *	2004-02-19	2008-02-06	ソニー株式会社	画像処理装置及び画像処理方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3649847A (en) *	1970-10-30	1972-03-14	Rca Corp	Electrically controlled attenuation and phase shift circuitry
JPS523528B1 (it) *	1971-03-05	1977-01-28
US3757240A (en) *	1972-03-15	1973-09-04	Hewlett Packard Co	Active attenuator
US3740462A (en) *	1972-04-10	1973-06-19	Rca Corp	Automatic chroma gain control system
JPS5620724B2 (it) *	1972-07-27	1981-05-15
US3750042A (en) *	1972-08-21	1973-07-31	Gen Electric	Amplifier of controllable gain
US3875522A (en) *	1973-04-13	1975-04-01	Signetics Corp	Integrated direct-coupled electronic attenuator
US3887938A (en) *	1974-03-18	1975-06-03	Motorola Inc	IC color demodulator with single external picture control

1974
- 1974-12-06 US US05/530,405 patent/US3970948A/en not_active Expired - Lifetime
1975
- 1975-08-25 US US05/607,489 patent/US3999141A/en not_active Expired - Lifetime
- 1975-10-30 GB GB44953/75A patent/GB1524715A/en not_active Expired
- 1975-10-31 IT IT28891/75A patent/IT1044102B/it active
- 1975-11-26 CA CA240,523A patent/CA1038048A/en not_active Expired
- 1975-11-28 SE SE7513451A patent/SE413065B/xx unknown
- 1975-11-28 FI FI753370A patent/FI753370A/fi not_active Application Discontinuation
- 1975-12-01 AU AU87133/75A patent/AU497506B2/en not_active Expired
- 1975-12-02 FR FR7536875A patent/FR2293843A1/fr active Pending
- 1975-12-03 BE BE162420A patent/BE836242A/xx unknown
- 1975-12-05 NL NL7514219A patent/NL7514219A/xx not_active Application Discontinuation
- 1975-12-05 JP JP50145863A patent/JPS5183455A/ja active Pending
- 1975-12-05 AT AT925675A patent/AT352800B/de not_active IP Right Cessation
- 1975-12-05 DE DE2554880A patent/DE2554880B2/de not_active Withdrawn
1976
- 1976-05-20 CA CA252,984A patent/CA1037571A/en not_active Expired

Also Published As

Publication number	Publication date
AT352800B (de)	1979-10-10
FR2293843A1 (fr)	1976-07-02
SE413065B (sv)	1980-03-31
DE2554880A1 (de)	1976-06-10
US3999141A (en)	1976-12-21
DE2554880B2 (de)	1980-08-21
FI753370A (it)	1976-06-07
GB1524715A (en)	1978-09-13
US3970948A (en)	1976-07-20
AU497506B2 (en)	1978-12-14
ATA925675A (de)	1979-03-15
AU8713375A (en)	1977-06-09
CA1037571A (en)	1978-08-29
NL7514219A (nl)	1976-06-09
JPS5183455A (it)	1976-07-22
CA1038048A (en)	1978-09-05
BE836242A (fr)	1976-04-01
SE7513451L (sv)	1976-06-08

Publication	Publication Date	Title
NL7415986A (nl)	1975-08-25	Versterker.
IT1043589B (it)	1980-02-29	Amplificatore
NL7512679A (nl)	1976-05-04	Versterker.
SE416013B (sv)	1980-11-17	Fergvideo forsterkare
DK335175A (da)	1976-01-27	Modtaktforsterker
ATA14275A (de)	1978-11-15	Quasi-komplementaerer verstaerker
IT1091798B (it)	1985-07-06	Amplificatore di segnali con controllo del guadagno
IT1041568B (it)	1980-01-10	Amplificatore operazionale a guadagno variabile
IT1039692B (it)	1979-12-10	Amplificatore
FR2278198A1 (fr)	1976-02-06	Amplificateur de difference
IT1044102B (it)	1980-03-20	Amplificatore di segnali a guadagno controllabile
NL7409851A (nl)	1976-01-26	Versterkerschakeling.
SE7607338L (sv)	1976-12-27	Forsterkare
FR2294586A1 (fr)	1976-07-09	Amplificateur push-pull
DK390576A (da)	1977-03-01	Fremkoblet forsterker
SE7509528L (sv)	1976-04-29	Differensforsterkare
FR2282203A1 (fr)	1976-03-12	Haut-parleur
FR2293830A1 (fr)	1976-07-02	Amplificateur integre
NL175366C (nl)	1984-10-16	Versterkerschakeling.
FR2287818A1 (fr)	1976-05-07	Amplificateur video
AT342661B (de)	1978-04-10	Niederfrequenzverstarker
BE780713A (fr)	1972-09-15	Amplificateur a gain variable
NL187779C (nl)	1992-01-02	Audioversterker.
ZA757506B (en)	1976-11-24	Controllable gain signal amplifier
IT1031571B (it)	1979-05-10	Amplificatore laser