NL189938C - Ontvanger voor automatische afstemming van een radiofrequentsignaal. - Google Patents

Ontvanger voor automatische afstemming van een radiofrequentsignaal.

Info

Publication number
NL189938C
NL189938C NLAANVRAGE7809776,A NL7809776A NL189938C NL 189938 C NL189938 C NL 189938C NL 7809776 A NL7809776 A NL 7809776A NL 189938 C NL189938 C NL 189938C
Authority
NL
Netherlands
Prior art keywords
receiver
radio frequency
frequency signal
automatic tuning
tuning
Prior art date
Application number
NLAANVRAGE7809776,A
Other languages
English (en)
Other versions
NL7809776A (nl
NL189938B (nl
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of NL7809776A publication Critical patent/NL7809776A/nl
Publication of NL189938B publication Critical patent/NL189938B/nl
Application granted granted Critical
Publication of NL189938C publication Critical patent/NL189938C/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
    • H03L7/04—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element wherein the frequency-determining element comprises distributed inductance and capacitance

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Receiver Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
NLAANVRAGE7809776,A 1977-09-28 1978-09-27 Ontvanger voor automatische afstemming van een radiofrequentsignaal. NL189938C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52116375A JPS6011852B2 (ja) 1977-09-28 1977-09-28 受信機

Publications (3)

Publication Number Publication Date
NL7809776A NL7809776A (nl) 1979-03-30
NL189938B NL189938B (nl) 1993-04-01
NL189938C true NL189938C (nl) 1993-09-01

Family

ID=14685420

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7809776,A NL189938C (nl) 1977-09-28 1978-09-27 Ontvanger voor automatische afstemming van een radiofrequentsignaal.

Country Status (8)

Country Link
US (1) US4217552A (nl)
JP (1) JPS6011852B2 (nl)
AU (1) AU524302B2 (nl)
CA (1) CA1127330A (nl)
DE (1) DE2842308A1 (nl)
FR (1) FR2404955A1 (nl)
GB (1) GB2007053B (nl)
NL (1) NL189938C (nl)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ193794A (en) * 1979-05-30 1984-03-30 Rca Corp Channel identification in multiband sweep tuning system
US4387401A (en) * 1979-05-30 1983-06-07 Rca Corporation Carrier detector apparatus useful in a multiband sweep type tuning system
NL8003087A (nl) * 1980-05-29 1982-01-04 Philips Nv Ontvanger met een zenderzoekschakeling.
US4380825A (en) * 1980-09-09 1983-04-19 Mitsubishi Denki Kabushiki Kaisha Automatic sweep digital tuning circuit
US4357632A (en) * 1981-05-08 1982-11-02 Rca Corporation Search type tuning system with synchronization signal presence transition detector
JPS6252047U (nl) * 1985-09-20 1987-03-31
JPS6259537U (nl) * 1985-10-02 1987-04-13
JPS6258995U (nl) * 1985-10-02 1987-04-11
JPS6265335U (nl) * 1985-10-16 1987-04-23
JPS6265337U (nl) * 1985-10-16 1987-04-23
JPS6265336U (nl) * 1985-10-16 1987-04-23
JPH0324443U (nl) * 1989-07-13 1991-03-13

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951150A (en) * 1956-11-16 1960-08-30 Itt Automatic frequency search and track system
US3388331A (en) * 1965-05-28 1968-06-11 John R. Rawley Automatic frequency control of a radio receiver
US3864636A (en) * 1972-11-09 1975-02-04 Tokyo Shibaura Electric Co Local oscillation device for a television receiver set
DE2424613C3 (de) * 1974-05-21 1979-07-05 Texas Instruments Deutschland Gmbh, 8050 Freising Schaltungsanordnung zur automatischen Feinabstimmung eines Überlagerungsempfängers
JPS5439937Y2 (nl) * 1974-05-27 1979-11-26
US3936753A (en) * 1974-07-12 1976-02-03 Martin Marietta Corporation Digital automatic frequency control circuit
DE2437974C3 (de) * 1974-08-07 1979-04-26 Texas Instruments Deutschland Gmbh, 8050 Freising Kanalsuch- und Kanalwählanordnung
US4009442A (en) * 1975-05-12 1977-02-22 Von Bromssen Knut Thorkel Device which among a number of radio signals selects one specially marked radio signal
GB1518712A (en) * 1975-08-28 1978-07-26 Sony Corp Channel selecting apparatus
CA1064580A (en) * 1975-12-26 1979-10-16 Sony Corporation Automatic fine tuning circuit

Also Published As

Publication number Publication date
GB2007053A (en) 1979-05-10
DE2842308C2 (nl) 1990-02-08
AU4023378A (en) 1980-04-03
DE2842308A1 (de) 1979-04-05
US4217552A (en) 1980-08-12
NL7809776A (nl) 1979-03-30
AU524302B2 (en) 1982-09-09
JPS6011852B2 (ja) 1985-03-28
GB2007053B (en) 1982-02-17
NL189938B (nl) 1993-04-01
JPS5450212A (en) 1979-04-20
FR2404955B1 (nl) 1983-09-09
FR2404955A1 (fr) 1979-04-27
CA1127330A (en) 1982-07-06

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee