IT1020912B - Circuito di sintonia per ricevitori - Google Patents

Circuito di sintonia per ricevitori

Info

Publication number: IT1020912B
Authority: IT; Italy
Prior art keywords: receivers; tuning circuit; tuning; circuit
Prior art date: 1973-10-04

Application number

IT69936/74A

Other languages

English (en)

Original Assignee

Philips Nv

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.)

1973-10-04

Filing date

1974-10-01

Publication date

1977-12-30

1974-10-01 Application filed by Philips Nv filed Critical Philips Nv

1977-12-30 Application granted granted Critical

1977-12-30 Publication of IT1020912B publication Critical patent/IT1020912B/it

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
- H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped

IT69936/74A 1973-10-04 1974-10-01 Circuito di sintonia per ricevitori IT1020912B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7313625A NL7313625A (it)	1973-10-04	1973-10-04

Publications (1)

Publication Number	Publication Date
IT1020912B true IT1020912B (it)	1977-12-30

Family

ID=19819738

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT69936/74A IT1020912B (it)	1973-10-04	1974-10-01	Circuito di sintonia per ricevitori

Country Status (12)

Country	Link
US (1)	US3968441A (it)
JP (1)	JPS5062714A (it)
AT (1)	AT349069B (it)
BE (1)	BE820642A (it)
CA (1)	CA1035876A (it)
DE (1)	DE2446196C3 (it)
ES (1)	ES430590A1 (it)
FR (1)	FR2247020B1 (it)
GB (1)	GB1483626A (it)
IT (1)	IT1020912B (it)
NL (1)	NL7313625A (it)
SE (1)	SE405305B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1033478A (en) *	1974-07-18	1978-06-20	Sanyo Electric Co. Ltd.	Automatic tuning apparatus
JPS52146108A (en) *	1976-05-29	1977-12-05	Clarion Co Ltd	Automatic tuning and channel selecting circuit
JPS5823017B2 (ja) *	1977-03-09	1983-05-12	日本ビクター株式会社	受信状態に応じて自動周波数制御信号伝送系の状態が自動的に切換え変更されるようにした自動周波数制御回路
JPS53116017A (en) *	1977-03-19	1978-10-11	Sony Corp	Automatic frequency control system for ssb receivers
JPS54111403U (it) *	1978-01-24	1979-08-06
JPS5518119A (en) *	1978-07-26	1980-02-08	Hitachi Ltd	Automatic tuning circuit
JPS5563118A (en) *	1978-11-02	1980-05-13	Sony Corp	Aft circuit
JPS5680921A (en) *	1979-12-06	1981-07-02	Hitachi Ltd	Automatic tuning circuit
US4504973A (en) *	1984-03-02	1985-03-12	Aed Satellite Systems, Ltd.	Automatic disabling of AFC/AFT controller during receiver circuit tuning
GB2217935A (en) *	1988-04-27	1989-11-01	Philips Electronic Associated	Television receiving apparatus
US5214795A (en) *	1989-06-29	1993-05-25	Seiko Corp.	Low voltage automatic frequency control switch for a radio receiver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4118492Y1 (it) *	1964-02-27	1966-08-29
US3467873A (en) *	1966-12-19	1969-09-16	Electrohome Ltd	A.f.c. defeat networks for signal seeking receivers
US3505605A (en) *	1966-12-19	1970-04-07	Electrohome Ltd	Automatic motor shut-off networks for signal seeking receivers
US3528015A (en) *	1967-05-08	1970-09-08	Electrohome Ltd	Automatic motor turn-on networks for signal seeking receivers
US3611152A (en) *	1967-07-25	1971-10-05	Matsushita Electric Ind Co Ltd	Stabilized automatic tuning receiver
US3821651A (en) *	1972-11-02	1974-06-28	Masco Corp	Scanning control circuit for use in signal seeking radio receiver

1973
- 1973-10-04 NL NL7313625A patent/NL7313625A/xx not_active Application Discontinuation
1974
- 1974-09-27 DE DE2446196A patent/DE2446196C3/de not_active Expired
- 1974-09-27 US US05/509,803 patent/US3968441A/en not_active Expired - Lifetime
- 1974-09-30 CA CA210,404A patent/CA1035876A/en not_active Expired
- 1974-10-01 IT IT69936/74A patent/IT1020912B/it active
- 1974-10-01 SE SE7412316A patent/SE405305B/xx unknown
- 1974-10-01 GB GB42602/74A patent/GB1483626A/en not_active Expired
- 1974-10-02 JP JP49112888A patent/JPS5062714A/ja active Pending
- 1974-10-02 ES ES430590A patent/ES430590A1/es not_active Expired
- 1974-10-02 BE BE149161A patent/BE820642A/xx not_active IP Right Cessation
- 1974-10-02 AT AT792674A patent/AT349069B/de not_active IP Right Cessation
- 1974-10-04 FR FR7433485A patent/FR2247020B1/fr not_active Expired

Also Published As

Publication number	Publication date
GB1483626A (en)	1977-08-24
DE2446196A1 (de)	1975-04-10
CA1035876A (en)	1978-08-01
DE2446196B2 (it)	1979-08-23
AT349069B (de)	1979-03-26
AU7381674A (en)	1976-04-01
DE2446196C3 (de)	1980-05-14
SE7412316L (it)	1975-04-07
NL7313625A (it)	1973-12-27
BE820642A (fr)	1975-04-02
SE405305B (sv)	1978-11-27
US3968441A (en)	1976-07-06
ATA792674A (de)	1978-08-15
FR2247020A1 (it)	1975-05-02
FR2247020B1 (it)	1979-06-01
JPS5062714A (it)	1975-05-28
ES430590A1 (es)	1976-09-01

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