IT1036497B - Circuito selezionatore di emittente in un ricevitore di segnali - Google Patents

Circuito selezionatore di emittente in un ricevitore di segnali

Info

Publication number
IT1036497B
IT1036497B IT68805/75A IT6880575A IT1036497B IT 1036497 B IT1036497 B IT 1036497B IT 68805/75 A IT68805/75 A IT 68805/75A IT 6880575 A IT6880575 A IT 6880575A IT 1036497 B IT1036497 B IT 1036497B
Authority
IT
Italy
Prior art keywords
signal receiver
selector circuit
emitter selector
emitter
circuit
Prior art date
Application number
IT68805/75A
Other languages
English (en)
Original Assignee
Indesit
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 filed Critical Indesit
Priority to IT68805/75A priority Critical patent/IT1036497B/it
Priority to US05/701,269 priority patent/US4078213A/en
Priority to NLAANVRAGE7607353,A priority patent/NL185047C/xx
Priority to GB33559/78A priority patent/GB1557776A/en
Priority to GB28299/76A priority patent/GB1561036A/en
Priority to FR7620854A priority patent/FR2317820A1/fr
Priority to DE2631039A priority patent/DE2631039C2/de
Priority to DE2660975A priority patent/DE2660975C2/de
Application granted granted Critical
Publication of IT1036497B publication Critical patent/IT1036497B/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
    • H03J5/0272—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 used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—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 used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
IT68805/75A 1975-07-11 1975-07-11 Circuito selezionatore di emittente in un ricevitore di segnali IT1036497B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT68805/75A IT1036497B (it) 1975-07-11 1975-07-11 Circuito selezionatore di emittente in un ricevitore di segnali
US05/701,269 US4078213A (en) 1975-07-11 1976-06-30 Transmitter selection circuit for a radio or television receiver
NLAANVRAGE7607353,A NL185047C (nl) 1975-07-11 1976-07-02 Kanaalselectieschakeling voor een televisieontvanger.
GB33559/78A GB1557776A (en) 1975-07-11 1976-07-07 Television receiver having a channel selection circuit
GB28299/76A GB1561036A (en) 1975-07-11 1976-07-07 Radio or television receiver having a channel selection circuit
FR7620854A FR2317820A1 (fr) 1975-07-11 1976-07-08 Recepteur perfectionne de radio ou de television
DE2631039A DE2631039C2 (de) 1975-07-11 1976-07-09 Fernsehempfänger mit einer Kanalwählschaltung
DE2660975A DE2660975C2 (de) 1975-07-11 1976-07-09 Fernsehempfänger mit einer Kanalwählschaltung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68805/75A IT1036497B (it) 1975-07-11 1975-07-11 Circuito selezionatore di emittente in un ricevitore di segnali

Publications (1)

Publication Number Publication Date
IT1036497B true IT1036497B (it) 1979-10-30

Family

ID=11310622

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68805/75A IT1036497B (it) 1975-07-11 1975-07-11 Circuito selezionatore di emittente in un ricevitore di segnali

Country Status (6)

Country Link
US (1) US4078213A (it)
DE (2) DE2660975C2 (it)
FR (1) FR2317820A1 (it)
GB (2) GB1561036A (it)
IT (1) IT1036497B (it)
NL (1) NL185047C (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1047373B (it) * 1975-10-16 1980-09-10 Indesit Disposizione per selezionare una frequenza ricevibile in un ricevitore di segnali
IT1073074B (it) * 1975-11-14 1985-04-13 Rca Corp Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata
US4137499A (en) * 1977-04-27 1979-01-30 Texas Instruments Incorporated Signal strength measuring transceiver
GB1564375A (en) * 1977-09-07 1980-04-10 Marconi Co Ltd Frequency generators
US4254504A (en) * 1978-08-08 1981-03-03 International Telephone And Telegraph Corporation Control apparatus for a transceiver employing a programmable memory
GB2033178B (en) * 1978-11-02 1983-01-26 Plessey Co Ltd Frequency synthesiser arrangement
US4377871A (en) * 1981-04-06 1983-03-22 Motorola, Inc. Transmit security system for a synthesized transceiver
US4472820A (en) * 1981-04-06 1984-09-18 Motorola, Inc. Program swallow counting device using a single synchronous counter for frequency synthesizing
US4477919A (en) * 1981-04-06 1984-10-16 Motorola, Inc. Range control circuit for counter to be used in a frequency synthesizer
FR2510287B1 (fr) * 1981-07-24 1985-01-04 Thomson Csf Synthetiseur de frequence a large bande relative
DE3342237A1 (de) * 1983-11-23 1985-05-30 Institut für Rundfunktechnik GmbH, 8000 München Schaltungsanordnung zum melden der kanalwahl bei einem abstimmbaren fernsehempfaenger
DE19733079A1 (de) * 1997-07-31 1999-02-04 Techno Trend Systemtechnik Gmb Verfahren zur Erzeugung einer Referenzfrequenz bei Frequenzumsetzern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1420320A (en) * 1971-12-08 1976-01-07 Matsushita Electric Ind Co Ltd Tuning apparatus
US3821650A (en) * 1973-01-26 1974-06-28 Motorola Inc Phase lock loop electronic tuning system
US3883807A (en) * 1974-05-30 1975-05-13 Motorola Inc Tuning control system
US3980951A (en) * 1975-08-13 1976-09-14 Fairchild Camera And Instrument Corporation Electronic tuning control system for television

Also Published As

Publication number Publication date
FR2317820A1 (fr) 1977-02-04
US4078213A (en) 1978-03-07
DE2631039A1 (de) 1977-01-27
GB1561036A (en) 1980-02-13
NL185047B (nl) 1989-08-01
DE2631039C2 (de) 1985-08-14
NL185047C (nl) 1990-01-02
FR2317820B1 (it) 1981-09-25
NL7607353A (nl) 1977-01-13
DE2660975C2 (de) 1986-08-07
GB1557776A (en) 1979-12-12

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940728