FR2368827A1 - Dispositif accordable pour recepteur de television - Google Patents

Dispositif accordable pour recepteur de television

Info

Publication number
FR2368827A1
FR2368827A1 FR7731351A FR7731351A FR2368827A1 FR 2368827 A1 FR2368827 A1 FR 2368827A1 FR 7731351 A FR7731351 A FR 7731351A FR 7731351 A FR7731351 A FR 7731351A FR 2368827 A1 FR2368827 A1 FR 2368827A1
Authority
FR
France
Prior art keywords
television receiver
mixer
driven
tunable device
input stage
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.)
Granted
Application number
FR7731351A
Other languages
English (en)
Other versions
FR2368827B1 (fr
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 FR2368827A1 publication Critical patent/FR2368827A1/fr
Application granted granted Critical
Publication of FR2368827B1 publication Critical patent/FR2368827B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

L'invention concerne les récepteurs de télévision. L'étage d'entrée haute fréquence d'un récepteur de télévision comprend essentiellement un circuit de régulation de niveau 2, trois amplificateurs 4, 5, 6 correspondant à des bandes de réception différentes, un premier melangeur 13 attaqué par un oscillateur à fréquence variable 14, et un second mélangeur 15 attaqué par un oscillateur à fréquence fixe 16. Cet étage d'entrée est réalisé sous forme modulaire, ce qui simplifie son montage. Application à l'accord des récepteurs de télévision.
FR7731351A 1976-10-25 1977-10-18 Dispositif accordable pour recepteur de television Granted FR2368827A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6956476A IT1074274B (it) 1976-10-25 1976-10-25 Dispositivo per la sintonizzazione di un televisore

Publications (2)

Publication Number Publication Date
FR2368827A1 true FR2368827A1 (fr) 1978-05-19
FR2368827B1 FR2368827B1 (fr) 1983-11-04

Family

ID=11312395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731351A Granted FR2368827A1 (fr) 1976-10-25 1977-10-18 Dispositif accordable pour recepteur de television

Country Status (4)

Country Link
DE (1) DE2747681A1 (fr)
FR (1) FR2368827A1 (fr)
GB (1) GB1590400A (fr)
IT (1) IT1074274B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234103A2 (fr) * 1985-11-28 1987-09-02 Kabushiki Kaisha Toshiba Circuit d'accord

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1958993A1 (de) * 1969-11-25 1971-06-03 Nordmende Elektrisches Bauteil fuer einen mit Kapazitaetsdioden abstimmbaren elektrischen Nachrichtenempfaenger
US3801915A (en) * 1971-03-04 1974-04-02 Magnavox Co Method and apparatus for converting electrical signals
DE2431716A1 (de) * 1974-07-02 1976-01-22 Philips Patentverwaltung Gemeinschaftsantennenanlage mit in den einzelnen leitungszuegen angeordneten frequenzumsetzereinheiten
US3939429A (en) * 1973-07-07 1976-02-17 U.S. Philips Corporation Tunable high frequency input circuit for a television receiver that tunes both VHF and UHF channels and can be readily integrated

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1958993A1 (de) * 1969-11-25 1971-06-03 Nordmende Elektrisches Bauteil fuer einen mit Kapazitaetsdioden abstimmbaren elektrischen Nachrichtenempfaenger
US3801915A (en) * 1971-03-04 1974-04-02 Magnavox Co Method and apparatus for converting electrical signals
US3939429A (en) * 1973-07-07 1976-02-17 U.S. Philips Corporation Tunable high frequency input circuit for a television receiver that tunes both VHF and UHF channels and can be readily integrated
DE2431716A1 (de) * 1974-07-02 1976-01-22 Philips Patentverwaltung Gemeinschaftsantennenanlage mit in den einzelnen leitungszuegen angeordneten frequenzumsetzereinheiten

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *
EXRV/76 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234103A2 (fr) * 1985-11-28 1987-09-02 Kabushiki Kaisha Toshiba Circuit d'accord
EP0234103A3 (fr) * 1985-11-28 1989-03-08 Kabushiki Kaisha Toshiba Circuit d'accord

Also Published As

Publication number Publication date
GB1590400A (en) 1981-06-03
IT1074274B (it) 1985-04-20
FR2368827B1 (fr) 1983-11-04
DE2747681A1 (de) 1978-04-27

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse