FR1581388A - - Google Patents

Info

Publication number: FR1581388A
Authority: FR; France
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

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.)

1967-09-20

Filing date

1968-09-19

Publication date

1969-09-12

1968-09-19 Application filed filed Critical

1969-09-12 Application granted granted Critical

1969-09-12 Publication of FR1581388A publication Critical patent/FR1581388A/fr

Status Expired legal-status Critical Current

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
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- 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

FR1581388D 1967-09-20 1968-09-19 Expired FR1581388A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE1537690A DE1537690C3 (de)	1967-09-20	1967-09-20	Transistorbestückter Breitbandverstärker mit einer Verstärkungsregelung
DES0111895		1967-09-20

Publications (1)

Publication Number	Publication Date
FR1581388A true FR1581388A (fr)	1969-09-12

Family

ID=25752785

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1581388D Expired FR1581388A (fr)	1967-09-20	1968-09-19

Country Status (9)

Country	Link
US (1)	US3634775A (fr)
AT (1)	AT289201B (fr)
BE (1)	BE721197A (fr)
CH (1)	CH493164A (fr)
DE (1)	DE1537690C3 (fr)
FR (1)	FR1581388A (fr)
GB (1)	GB1192690A (fr)
NL (1)	NL6812991A (fr)
SE (1)	SE366621B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4918447A (fr) *	1972-06-09	1974-02-18
US4053846A (en) *	1975-06-24	1977-10-11	Honeywell Inc.	Amplifier apparatus
DE2748180C2 (de) *	1977-10-27	1982-10-28	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Regelbarer gegengekoppelter Verstärker
US4243947A (en) *	1979-03-28	1981-01-06	General Motors Corporation	Radio frequency amplifier with gain control
JP3291736B2 (ja) *	1991-04-04	2002-06-10	松下電器産業株式会社	高周波増幅装置
US5304948A (en) *	1992-12-11	1994-04-19	Nokia Mobile Phones Ltd.	RF amplifier with linear gain control
US5307026A (en) *	1992-12-11	1994-04-26	Nokia Mobile Phones, Ltd.	Variable gain RF amplifier with linear gain control
US6414547B1 (en)	2000-09-29	2002-07-02	International Business Machines Corporation	Variable gain RF amplifier
EP4187786B1 (fr) *	2021-11-30	2025-09-03	Nxp B.V.	Circuit d'atténuation

1967
- 1967-09-20 DE DE1537690A patent/DE1537690C3/de not_active Expired
1968
- 1968-09-11 NL NL6812991A patent/NL6812991A/xx unknown
- 1968-09-18 CH CH1398368A patent/CH493164A/de not_active IP Right Cessation
- 1968-09-19 FR FR1581388D patent/FR1581388A/fr not_active Expired
- 1968-09-19 AT AT915768A patent/AT289201B/de not_active IP Right Cessation
- 1968-09-19 GB GB44571/68A patent/GB1192690A/en not_active Expired
- 1968-09-19 SE SE12631/68A patent/SE366621B/xx unknown
- 1968-09-20 BE BE721197D patent/BE721197A/xx unknown
1970
- 1970-10-19 US US82226A patent/US3634775A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US3634775A (en)	1972-01-11
AT289201B (de)	1971-04-13
GB1192690A (en)	1970-05-20
CH493164A (de)	1970-06-30
DE1537690C3 (de)	1975-02-13
NL6812991A (fr)	1969-03-24
DE1537690A1 (de)	1969-12-18
SE366621B (fr)	1974-04-29
BE721197A (fr)	1969-03-20
DE1537690B2 (de)	1974-07-04

Publication	Publication Date	Title
AU425114B2 (fr)	1972-06-14
AU416737B2 (fr)	1971-09-03
AU342066A (fr)	1968-09-19
AU2116667A (fr)	1969-04-03
AU2256867A (fr)	1968-12-05
AU2454867A (fr)	1969-01-16
AU2528767A (fr)	1970-01-08
AU3189468A (fr)	1969-07-10
AU610966A (fr)	1968-11-28
BE477645A (fr)
BE692198A (fr)	1967-06-16
AU3054676A (fr)	1969-06-19
BE711751A (fr)	1968-07-15
AU2406369A (fr)	1969-01-09
AU408412B2 (fr)	1970-11-23
AU23366A (fr)	1968-07-11
AU1763766A (fr)	1968-08-15
AU459699A (fr)	1975-04-10
AU1677166A (fr)	1968-07-25
AU1614766A (fr)	1968-07-11
AU97666A (fr)	1968-08-01
BE162295A (fr)
BE426053A (fr)
BE711763A (fr)	1968-09-06
BE509738A (fr)

Legal Events

Date	Code	Title	Description
1983-07-22	ST	Notification of lapse