IT1095707B - Circuito sintonizzatore per apparati di ricezione ad alta frequenza con modulazione a banda laterale vestigiale,specialmente per ricevitori di televisione - Google Patents

Circuito sintonizzatore per apparati di ricezione ad alta frequenza con modulazione a banda laterale vestigiale,specialmente per ricevitori di televisione

Info

Publication number
IT1095707B
IT1095707B IT22907/78A IT2290778A IT1095707B IT 1095707 B IT1095707 B IT 1095707B IT 22907/78 A IT22907/78 A IT 22907/78A IT 2290778 A IT2290778 A IT 2290778A IT 1095707 B IT1095707 B IT 1095707B
Authority
IT
Italy
Prior art keywords
high frequency
side band
television receivers
frequency reception
tuner circuit
Prior art date
Application number
IT22907/78A
Other languages
English (en)
Other versions
IT7822907A0 (it
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of IT7822907A0 publication Critical patent/IT7822907A0/it
Application granted granted Critical
Publication of IT1095707B publication Critical patent/IT1095707B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H03J5/0263—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
IT22907/78A 1977-05-05 1978-05-02 Circuito sintonizzatore per apparati di ricezione ad alta frequenza con modulazione a banda laterale vestigiale,specialmente per ricevitori di televisione IT1095707B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2720170A DE2720170C2 (de) 1977-05-05 1977-05-05 Abstimmschaltung für Hochfrequenz- Empfangsgeräte mit Restseitenbandmodulation, insbesondere für Fernsehempfänger

Publications (2)

Publication Number Publication Date
IT7822907A0 IT7822907A0 (it) 1978-05-02
IT1095707B true IT1095707B (it) 1985-08-17

Family

ID=6008131

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22907/78A IT1095707B (it) 1977-05-05 1978-05-02 Circuito sintonizzatore per apparati di ricezione ad alta frequenza con modulazione a banda laterale vestigiale,specialmente per ricevitori di televisione

Country Status (5)

Country Link
US (1) US4195314A (it)
DE (1) DE2720170C2 (it)
FR (1) FR2390060B1 (it)
GB (1) GB1600948A (it)
IT (1) IT1095707B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2912710C3 (de) * 1979-03-30 1982-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für einen Empfänger, deren Abstimmlage von dem Stand eines Zählers bestimmt wird

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949158A (en) * 1974-12-31 1976-04-06 Quasar Electronics Corporation Wide band aft circuit for television receiver
US3943459A (en) * 1975-04-02 1976-03-09 Cutler-Hammer, Inc. Tuning system for a microwave local oscillator
DE2531945C3 (de) * 1975-07-17 1983-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur Erzeugung von Gleichspannungen
GB1518712A (en) * 1975-08-28 1978-07-26 Sony Corp Channel selecting apparatus
US4005256A (en) * 1975-11-03 1977-01-25 Gte Sylvania Incorporated AFC circuit
JPS5826693B2 (ja) * 1975-11-22 1983-06-04 ソニー株式会社 センキヨクソウチ
US4025953A (en) * 1975-11-26 1977-05-24 Quasar Electronics Corporation Frequency synthesizer tuning system for television receivers
JPS5810015B2 (ja) * 1975-12-24 1983-02-23 ソニー株式会社 センキヨクソウチ
US4128849A (en) * 1976-05-24 1978-12-05 Admiral Corporation Selectively coupled synthesizer for tuner of TV receiver
US4038689A (en) * 1976-06-14 1977-07-26 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with manual fine tuning control

Also Published As

Publication number Publication date
GB1600948A (en) 1981-10-21
FR2390060B1 (it) 1985-05-17
IT7822907A0 (it) 1978-05-02
DE2720170C2 (de) 1982-05-13
FR2390060A1 (it) 1978-12-01
US4195314A (en) 1980-03-25
DE2720170A1 (de) 1978-11-16

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