NL182114C - Afstembesturingsschakeling voor een radio-ontvanger. - Google Patents

Afstembesturingsschakeling voor een radio-ontvanger.

Info

Publication number
NL182114C
NL182114C NLAANVRAGE7714368,A NL7714368A NL182114C NL 182114 C NL182114 C NL 182114C NL 7714368 A NL7714368 A NL 7714368A NL 182114 C NL182114 C NL 182114C
Authority
NL
Netherlands
Prior art keywords
radio receiver
tuning controller
tuning
controller
receiver
Prior art date
Application number
NLAANVRAGE7714368,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7714368A (nl
NL182114B (nl
Original Assignee
Fujitsu Ten Ltd
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 Fujitsu Ten Ltd filed Critical Fujitsu Ten Ltd
Publication of NL7714368A publication Critical patent/NL7714368A/xx
Publication of NL182114B publication Critical patent/NL182114B/xx
Application granted granted Critical
Publication of NL182114C publication Critical patent/NL182114C/xx

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
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
NLAANVRAGE7714368,A 1976-12-24 1977-12-23 Afstembesturingsschakeling voor een radio-ontvanger. NL182114C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15708776A JPS5380108A (en) 1976-12-24 1976-12-24 Automatic channel selecting receiver

Publications (3)

Publication Number Publication Date
NL7714368A NL7714368A (nl) 1978-06-27
NL182114B NL182114B (nl) 1987-08-03
NL182114C true NL182114C (nl) 1988-01-04

Family

ID=15641951

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7714368,A NL182114C (nl) 1976-12-24 1977-12-23 Afstembesturingsschakeling voor een radio-ontvanger.

Country Status (5)

Country Link
US (1) US4207531A (xx)
JP (1) JPS5380108A (xx)
AU (1) AU513961B2 (xx)
DE (1) DE2756828C2 (xx)
NL (1) NL182114C (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1142660A (en) * 1978-01-31 1983-03-08 Tatsuo Ito Electronic tuning radio receiver
US4291414A (en) * 1979-05-02 1981-09-22 Nippon Gakki Seizo Kabushiki Kaisha Radio receiver operable in station search mode or station select mode
JPS5925526B2 (ja) * 1979-05-16 1984-06-19 アルプス電気株式会社 選局装置
JPS55165052A (en) * 1979-06-08 1980-12-23 Matsushita Electric Ind Co Ltd Signal control unit
DE3025358A1 (de) * 1980-07-04 1982-01-21 Deutsche Itt Industries Gmbh, 7800 Freiburg Regelsystem zum einstellen einer physikalischen groesse
US4398303A (en) * 1981-11-30 1983-08-09 Rca Corporation Signal-seeking tuning system with automatic bandswitching for a television receiver
US4679246A (en) * 1985-05-01 1987-07-07 General Electric Company One-shot tuning circuit
US6014554A (en) * 1997-09-30 2000-01-11 Lucent Technologies, Inc. Method and apparatus for tuning analog filters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555729B2 (xx) * 1971-11-29 1980-02-08
JPS4975016A (xx) * 1972-11-21 1974-07-19
JPS5325721B2 (xx) * 1973-11-07 1978-07-28
NL7414564A (nl) * 1973-11-16 1975-05-21 Int Standard Electric Corp Radio- of televisieontvanger met een zender- zoekinrichting.
JPS5421049B2 (xx) * 1973-12-28 1979-07-27
DE2437974C3 (de) * 1974-08-07 1979-04-26 Texas Instruments Deutschland Gmbh, 8050 Freising Kanalsuch- und Kanalwählanordnung

Also Published As

Publication number Publication date
JPS5380108A (en) 1978-07-15
NL7714368A (nl) 1978-06-27
DE2756828A1 (de) 1978-06-29
NL182114B (nl) 1987-08-03
AU3076177A (en) 1979-05-24
AU513961B2 (en) 1981-01-15
US4207531A (en) 1980-06-10
DE2756828C2 (de) 1982-12-16

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Discontinued because of reaching the maximum lifetime of a patent

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