ES390437A2 - Circuito de manipulacion para seleccion programada de fre- cuencia en aparatos de radio y television. - Google Patents

Circuito de manipulacion para seleccion programada de fre- cuencia en aparatos de radio y television.

Info

Publication number
ES390437A2
ES390437A2 ES390437A ES390437A ES390437A2 ES 390437 A2 ES390437 A2 ES 390437A2 ES 390437 A ES390437 A ES 390437A ES 390437 A ES390437 A ES 390437A ES 390437 A2 ES390437 A2 ES 390437A2
Authority
ES
Spain
Prior art keywords
voltage
variable
variable capacitor
hand
frequency selection
Prior art date
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
ES390437A
Other languages
English (en)
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES390437A2 publication Critical patent/ES390437A2/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • 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
    • H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
    • 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
    • H03J5/04—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 operated by hand

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Electronic Switches (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
ES390437A 1970-04-22 1971-04-22 Circuito de manipulacion para seleccion programada de fre- cuencia en aparatos de radio y television. Expired ES390437A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702019375 DE2019375C3 (de) 1970-04-22 1970-04-22 Anordnung zur Korrektur des Temperaturganges von Kapazitätsdiodenschaltungen, insbesondere bei Tastschaltungen für eine programmierte Frequenzwahl im Rundfunk- und Fernsehgeräten

Publications (1)

Publication Number Publication Date
ES390437A2 true ES390437A2 (es) 1974-09-01

Family

ID=5768805

Family Applications (1)

Application Number Title Priority Date Filing Date
ES390437A Expired ES390437A2 (es) 1970-04-22 1971-04-22 Circuito de manipulacion para seleccion programada de fre- cuencia en aparatos de radio y television.

Country Status (7)

Country Link
AT (1) AT305395B (enExample)
BE (1) BE766091A (enExample)
DE (1) DE2019375C3 (enExample)
ES (1) ES390437A2 (enExample)
FR (1) FR2090569A5 (enExample)
GB (1) GB1347707A (enExample)
NL (1) NL175571C (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD66226A (enExample) *
US3011116A (en) * 1957-03-04 1961-11-28 Gen Dynamics Corp Temperature compensation in semiconductor devices
DE1538422B2 (de) * 1966-03-25 1975-03-27 Deutsche Itt Industries Gmbh, 7800 Freiburg Empfangsteil einer Fernbedienungseinrichtung
US3440544A (en) * 1966-11-01 1969-04-22 Motorola Inc Manual,automatic,and semiautomatic tuning circuits utilizing voltage variable capacitance diodes
GB1232202A (enExample) * 1967-08-14 1971-05-19

Also Published As

Publication number Publication date
BE766091A (fr) 1971-10-22
NL7105100A (enExample) 1971-10-26
DE2019375A1 (de) 1971-11-11
NL175571B (nl) 1984-06-18
FR2090569A5 (enExample) 1972-01-14
DE2019375C3 (de) 1981-04-16
GB1347707A (en) 1974-02-27
DE2019375B2 (de) 1975-08-21
NL175571C (nl) 1984-11-16
AT305395B (de) 1973-02-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19860206