IT971311B - Circuito per la ricerca automati ca di stazioni trasmittenti in ri cevitori ad alta frequenza - Google Patents

Circuito per la ricerca automati ca di stazioni trasmittenti in ri cevitori ad alta frequenza

Info

Publication number: IT971311B
Authority: IT; Italy
Prior art keywords: automated; search; circuit; high frequency; frequency receivers
Prior art date: 1971-12-03

Application number

IT32212/72A

Other languages

English (en)

Original Assignee

Schwer Soehne Gmbh A

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.)

1971-12-03

Filing date

1972-11-29

Publication date

1974-04-30

1972-11-29 Application filed by Schwer Soehne Gmbh A filed Critical Schwer Soehne Gmbh A

1974-04-30 Application granted granted Critical

1974-04-30 Publication of IT971311B publication Critical patent/IT971311B/it

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

IT32212/72A 1971-12-03 1972-11-29 Circuito per la ricerca automati ca di stazioni trasmittenti in ri cevitori ad alta frequenza IT971311B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2160004A DE2160004C2 (de)	1971-12-03	1971-12-03	Schaltung zur automatischen Sendersuche

Publications (1)

Publication Number	Publication Date
IT971311B true IT971311B (it)	1974-04-30

Family

ID=5826905

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT32212/72A IT971311B (it)	1971-12-03	1972-11-29	Circuito per la ricerca automati ca di stazioni trasmittenti in ri cevitori ad alta frequenza

Country Status (10)

Country	Link
US (1)	US3820027A (it)
BE (1)	BE788977A (it)
CH (1)	CH540604A (it)
DE (1)	DE2160004C2 (it)
DK (1)	DK132919C (it)
FR (1)	FR2162182B1 (it)
GB (1)	GB1347436A (it)
IT (1)	IT971311B (it)
NL (1)	NL7211125A (it)
SE (1)	SE384957B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2237824C2 (de) *	1972-08-01	1985-01-17	Clarion Co., Ltd., Tokio/Tokyo	Schaltung für die selbsttätige Sendersuche in einem Empfänger für ein Rundfunksignal
US3965288A (en) *	1973-06-08	1976-06-22	Sanyo Electric Co., Ltd.	Automatic tuning apparatus
CA1033478A (en) *	1974-07-18	1978-06-20	Sanyo Electric Co. Ltd.	Automatic tuning apparatus
US4045775A (en) *	1975-11-03	1977-08-30	Gte Sylvania Incorporated	Continuous dc control circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3467870A (en) *	1965-02-16	1969-09-16	Trio Corp	Automatic frequency sweep apparatus
US3644853A (en) *	1970-11-23	1972-02-22	Zenith Radio Corp	Voltage-controlled signal-seeking tuning system

0
- BE BE788977D patent/BE788977A/xx unknown
1971
- 1971-12-03 DE DE2160004A patent/DE2160004C2/de not_active Expired
1972
- 1972-08-15 NL NL7211125A patent/NL7211125A/xx not_active Application Discontinuation
- 1972-09-21 CH CH1391272A patent/CH540604A/de not_active IP Right Cessation
- 1972-10-13 SE SE7213236A patent/SE384957B/xx unknown
- 1972-10-20 GB GB4836572A patent/GB1347436A/en not_active Expired
- 1972-11-03 US US00303607A patent/US3820027A/en not_active Expired - Lifetime
- 1972-11-29 IT IT32212/72A patent/IT971311B/it active
- 1972-11-29 DK DK597572A patent/DK132919C/da active
- 1972-12-01 FR FR7242871A patent/FR2162182B1/fr not_active Expired

Also Published As

Publication number	Publication date
CH540604A (de)	1973-08-15
SE384957B (sv)	1976-05-24
DE2160004B2 (de)	1972-11-09
DK132919C (da)	1976-07-26
FR2162182A1 (it)	1973-07-13
DE2160004A1 (it)	1972-11-09
FR2162182B1 (it)	1976-10-29
DK132919B (da)	1976-02-23
GB1347436A (en)	1974-02-27
BE788977A (fr)	1973-01-15
NL7211125A (it)	1973-06-05
DE2160004C2 (de)	1975-09-18
US3820027A (en)	1974-06-25

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