FR2428351A1 - IMPROVED SIGNAL SELECTOR - Google Patents

IMPROVED SIGNAL SELECTOR

Info

Publication number
FR2428351A1
FR2428351A1 FR7913513A FR7913513A FR2428351A1 FR 2428351 A1 FR2428351 A1 FR 2428351A1 FR 7913513 A FR7913513 A FR 7913513A FR 7913513 A FR7913513 A FR 7913513A FR 2428351 A1 FR2428351 A1 FR 2428351A1
Authority
FR
France
Prior art keywords
keyboard
gates
indirect
signal selector
improved signal
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
FR7913513A
Other languages
French (fr)
Other versions
FR2428351B1 (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 FR2428351A1 publication Critical patent/FR2428351A1/en
Application granted granted Critical
Publication of FR2428351B1 publication Critical patent/FR2428351B1/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

L'invention concerne un circuit de réglage d'accord pour récepteur de signaux radioélectriques autorisant au moins deux modes de sélection du signal, l'un direct, l'autre indirect (par mémorisation). Le circuit comporte un clavier de commande T, deux portes OU 106 et 107, deux portes ET 103 et 104, un inverseur 101, un multivibrateur monostable 102 et une bascule 1. Lorsque le clavier a été actionné au moins deux fois à l'intérieur d'un intervalle de temps donné, le dispositif de l'invention passe automatiquement du mode indirect au mode direct. Le clavier du dispositif de l'invention comporte donc un moins grand nombre de touches de commande que dans la technique antérieure.The invention relates to a tuning adjustment circuit for a radio signal receiver allowing at least two signal selection modes, one direct, the other indirect (by storage). The circuit comprises a control keyboard T, two OR gates 106 and 107, two AND gates 103 and 104, an inverter 101, a monostable multivibrator 102 and a flip-flop 1. When the keyboard has been operated at least twice inside of a given time interval, the device of the invention automatically switches from indirect mode to direct mode. The keyboard of the device of the invention therefore comprises a smaller number of control keys than in the prior art.

FR7913513A 1978-06-08 1979-05-28 IMPROVED SIGNAL SELECTOR Expired FR2428351B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68327/78A IT1159717B (en) 1978-06-08 1978-06-08 REFINEMENTS WITH SIGNAL SELECTION DEVICES

Publications (2)

Publication Number Publication Date
FR2428351A1 true FR2428351A1 (en) 1980-01-04
FR2428351B1 FR2428351B1 (en) 1988-07-22

Family

ID=11308991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913513A Expired FR2428351B1 (en) 1978-06-08 1979-05-28 IMPROVED SIGNAL SELECTOR

Country Status (4)

Country Link
DE (1) DE2922366A1 (en)
FR (1) FR2428351B1 (en)
GB (1) GB2023363B (en)
IT (1) IT1159717B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825427A1 (en) * 1988-07-27 1990-02-01 Grundig Emv ARRANGEMENT FOR SELECTING THE PROGRAM OF RECEIVING DEVICES FOR ENTERTAINMENT ELECTRONICS
DE3830921A1 (en) * 1988-09-12 1990-03-22 Grundig Emv Arrangement for adapting a receiving device to various channel spacings
JPH03204224A (en) * 1990-01-05 1991-09-05 Pioneer Electron Corp Sleep timer for audio equipment
JP3320916B2 (en) * 1994-09-14 2002-09-03 パイオニア株式会社 Receiver tuning method and receiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2250231A1 (en) * 1973-10-31 1975-05-30 Matsushita Electric Ind Co Ltd
FR2277464A1 (en) * 1974-07-05 1976-01-30 Sony Corp INSTALLATION OF PROGRAMMING AND DISPLAY OF TRANSMISSION RECEPTION CHANNELS, FOR A TELEVISION RECEIVER
DE2542021A1 (en) * 1975-09-20 1977-03-31 Philips Patentverwaltung Remote control unit for television set - contains battery powered independent memory of last TV control settings and uses IR setting signals

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1047373B (en) * 1975-10-16 1980-09-10 Indesit ARRANGEMENT FOR SELECTING A RECEIVABLE FREQUENCY IN A SIGNAL RECEIVER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2250231A1 (en) * 1973-10-31 1975-05-30 Matsushita Electric Ind Co Ltd
FR2277464A1 (en) * 1974-07-05 1976-01-30 Sony Corp INSTALLATION OF PROGRAMMING AND DISPLAY OF TRANSMISSION RECEPTION CHANNELS, FOR A TELEVISION RECEIVER
DE2542021A1 (en) * 1975-09-20 1977-03-31 Philips Patentverwaltung Remote control unit for television set - contains battery powered independent memory of last TV control settings and uses IR setting signals

Also Published As

Publication number Publication date
DE2922366A1 (en) 1979-12-20
IT7868327A0 (en) 1978-06-08
DE2922366C2 (en) 1989-06-01
FR2428351B1 (en) 1988-07-22
GB2023363A (en) 1979-12-28
GB2023363B (en) 1982-07-07
IT1159717B (en) 1987-03-04

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
CL Concession to grant licences
CA Change of address
CD Change of name or company name
TP Transmission of property