FR2382814A1 - Circuit generateur de tension d'accord pour recepteur de television - Google Patents

Circuit generateur de tension d'accord pour recepteur de television

Info

Publication number
FR2382814A1
FR2382814A1 FR7805227A FR7805227A FR2382814A1 FR 2382814 A1 FR2382814 A1 FR 2382814A1 FR 7805227 A FR7805227 A FR 7805227A FR 7805227 A FR7805227 A FR 7805227A FR 2382814 A1 FR2382814 A1 FR 2382814A1
Authority
FR
France
Prior art keywords
television receiver
tuning
voltage generator
generator circuit
tuning voltage
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.)
Withdrawn
Application number
FR7805227A
Other languages
English (en)
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.)
Indesit Industria Elettrodomestici Italiana SpA
Original Assignee
Indesit Industria Elettrodomestici Italiana SpA
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 Indesit Industria Elettrodomestici Italiana SpA filed Critical Indesit Industria Elettrodomestici Italiana SpA
Publication of FR2382814A1 publication Critical patent/FR2382814A1/fr
Withdrawn legal-status Critical Current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
    • H03J5/0245—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)

Abstract

L'invention concerne l'accord des récepteurs de télévision. Le circuit de l'invention est destiné à éviter l'accord d'un récepteur de télévision sur les canaux situés entre les bandes VHF et UHF. Dans ce but, un interrupteur 9 se ferme au moment où la tension présente sur le curseur du potentiomètre 2 atteint un certain seuil. La chute de tension resultante dans la résistance 4 décale la tension d'accord appliquée sur la borne 10, ce qui fait passer instantanément du haut de la bande VHF au bas de la bande UHF. Application aux récepteurs de télévision.
FR7805227A 1977-03-03 1978-02-23 Circuit generateur de tension d'accord pour recepteur de television Withdrawn FR2382814A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67461/77A IT1071589B (it) 1977-03-03 1977-03-03 Disposizione per generare una tensione di sintonia

Publications (1)

Publication Number Publication Date
FR2382814A1 true FR2382814A1 (fr) 1978-09-29

Family

ID=11302575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805227A Withdrawn FR2382814A1 (fr) 1977-03-03 1978-02-23 Circuit generateur de tension d'accord pour recepteur de television

Country Status (6)

Country Link
US (1) US4197503A (fr)
DE (1) DE2808673A1 (fr)
FR (1) FR2382814A1 (fr)
GB (1) GB1579000A (fr)
IT (1) IT1071589B (fr)
NL (1) NL7802296A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036335A2 (fr) * 1980-03-19 1981-09-23 Sanyo Electric Co., Ltd. Appareil sélecteur de stations

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025358A1 (de) * 1980-07-04 1982-01-21 Deutsche Itt Industries Gmbh, 7800 Freiburg Regelsystem zum einstellen einer physikalischen groesse
JPS623973Y2 (fr) * 1980-10-15 1987-01-29
US5614885A (en) * 1988-12-05 1997-03-25 Prince Corporation Electrical control system for vehicle options
US5475366A (en) * 1988-12-05 1995-12-12 Prince Corporation Electrical control system for vehicle options
US5479155A (en) * 1988-12-05 1995-12-26 Prince Corporation Vehicle accessory trainable transmitter
US5627529A (en) * 1994-03-11 1997-05-06 Prince Corporation Vehicle control system with trainable transceiver
US5903226A (en) * 1993-03-15 1999-05-11 Prince Corporation Trainable RF system for remotely controlling household appliances
US5686903A (en) * 1995-05-19 1997-11-11 Prince Corporation Trainable RF transceiver
US5699054A (en) * 1995-05-19 1997-12-16 Prince Corporation Trainable transceiver including a dynamically tunable antenna
US5699055A (en) * 1995-05-19 1997-12-16 Prince Corporation Trainable transceiver and method for learning an activation signal that remotely actuates a device
US5661804A (en) * 1995-06-27 1997-08-26 Prince Corporation Trainable transceiver capable of learning variable codes
US5854593A (en) * 1996-07-26 1998-12-29 Prince Corporation Fast scan trainable transmitter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449749A (en) * 1968-06-24 1969-06-10 William J Mcevoy Electromagnetic surveillance system
DE1801290A1 (de) * 1968-03-28 1969-10-16 Kapsch Telephon Telegraph Auf distante Frequenzbaender abstimmbarer Schwingungskreis,insbesondere fuer Kurzwellen-Empfaenger
US3646450A (en) * 1969-08-13 1972-02-29 Zenith Radio Corp Voltage-controlled plural-band tuner for a wave signal receiver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801290U (de) 1959-09-10 1959-12-03 Elektroteile G M B H Einphasenwechselstrommagnet mit hubbegrenzung fuer den anker.
JPS5234162B2 (fr) * 1972-04-27 1977-09-01
US3893049A (en) * 1974-03-25 1975-07-01 Motorola Inc Electronic tuning system for television receivers
US3961267A (en) * 1974-11-01 1976-06-01 Warwick Electronics Inc. Channel selecting control system for television tuner including unused channel skip system
US3968444A (en) * 1974-11-11 1976-07-06 Texas Instruments Incorporated Skip band tuner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801290A1 (de) * 1968-03-28 1969-10-16 Kapsch Telephon Telegraph Auf distante Frequenzbaender abstimmbarer Schwingungskreis,insbesondere fuer Kurzwellen-Empfaenger
US3449749A (en) * 1968-06-24 1969-06-10 William J Mcevoy Electromagnetic surveillance system
US3646450A (en) * 1969-08-13 1972-02-29 Zenith Radio Corp Voltage-controlled plural-band tuner for a wave signal receiver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036335A2 (fr) * 1980-03-19 1981-09-23 Sanyo Electric Co., Ltd. Appareil sélecteur de stations
EP0036335A3 (en) * 1980-03-19 1982-01-27 Sanyo Electric Co., Ltd. Station selecting apparatus

Also Published As

Publication number Publication date
IT1071589B (it) 1985-04-10
DE2808673A1 (de) 1978-09-07
NL7802296A (nl) 1978-09-05
US4197503A (en) 1980-04-08
GB1579000A (en) 1980-11-12

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Legal Events

Date Code Title Description
RE Withdrawal of published application