NL187949C - Schakeling voor stille afstemming van een radio-ontvanger. - Google Patents

Schakeling voor stille afstemming van een radio-ontvanger.

Info

Publication number
NL187949C
NL187949C NLAANVRAGE7703908,A NL7703908A NL187949C NL 187949 C NL187949 C NL 187949C NL 7703908 A NL7703908 A NL 7703908A NL 187949 C NL187949 C NL 187949C
Authority
NL
Netherlands
Prior art keywords
quiet
tuning
switch
radio receiver
receiver
Prior art date
Application number
NLAANVRAGE7703908,A
Other languages
English (en)
Other versions
NL7703908A (nl
NL187949B (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
Priority claimed from JP3964976A external-priority patent/JPS52123113A/ja
Priority claimed from JP3964876A external-priority patent/JPS52123109A/ja
Priority claimed from JP4002476A external-priority patent/JPS52123114A/ja
Application filed by Fujitsu Ten Ltd filed Critical Fujitsu Ten Ltd
Publication of NL7703908A publication Critical patent/NL7703908A/nl
Publication of NL187949B publication Critical patent/NL187949B/nl
Application granted granted Critical
Publication of NL187949C publication Critical patent/NL187949C/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
    • H04B1/0082—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands with a common local oscillator for more than one band
    • H04B1/0089—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands with a common local oscillator for more than one band using a first intermediate frequency higher that the highest of any band received
    • H04B1/0092—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands with a common local oscillator for more than one band using a first intermediate frequency higher that the highest of any band received using a wideband front end
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
NLAANVRAGE7703908,A 1976-04-08 1977-04-07 Schakeling voor stille afstemming van een radio-ontvanger. NL187949C (nl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3964976A JPS52123113A (en) 1976-04-08 1976-04-08 Muutuning circuit
JP3964876A JPS52123109A (en) 1976-04-08 1976-04-08 Digital setting receiver
JP4002476A JPS52123114A (en) 1976-04-09 1976-04-09 Automatic channel selector

Publications (3)

Publication Number Publication Date
NL7703908A NL7703908A (nl) 1977-10-11
NL187949B NL187949B (nl) 1991-09-16
NL187949C true NL187949C (nl) 1992-02-17

Family

ID=27290212

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7703908,A NL187949C (nl) 1976-04-08 1977-04-07 Schakeling voor stille afstemming van een radio-ontvanger.

Country Status (3)

Country Link
US (1) US4207529A (nl)
DE (3) DE2715024B2 (nl)
NL (1) NL187949C (nl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU511400B2 (en) * 1978-01-31 1980-08-14 Fujitsu Ten Ltd. Electronic tuning radio receiver
JPS5539440A (en) * 1978-09-13 1980-03-19 Pioneer Electronic Corp Tuning system of terminal unit for catv system
NL184594C (nl) 1979-09-04 1989-09-01 Philips Nv Radio-ontvanger voorzien van een frequentie gesleutelde lus met audiofrequente terugkoppeling, en een stomschakeling.
US4352206A (en) * 1980-04-08 1982-09-28 Rca Corporation Comparison arrangement for a digital tuning system
DE3126116A1 (de) * 1981-07-02 1983-01-20 Blaupunkt-Werke Gmbh, 3200 Hildesheim Abstimmeinrichtung fuer digitale senderwahl in rundfunkempfaengern, insbesondere in ukw-empfaengern
EP1011203B1 (en) * 1998-06-09 2009-08-12 Sony Corporation Receiver and method of reception
KR100700981B1 (ko) * 2005-05-27 2007-03-29 삼성전자주식회사 전자기기 및 그 제어방법
DE102013204679A1 (de) 2013-03-18 2014-09-18 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum automatischen Einstellen eines Empfängers auf ein verwendetes Frequenzband und Frequenzraster

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467870A (en) * 1965-02-16 1969-09-16 Trio Corp Automatic frequency sweep apparatus
DE1810415B2 (de) * 1968-11-22 1972-04-13 Siemens AG, 1000 Berlin u. 8000 München Ueberlagerungsoszillator fuer sende- und empfangsumsetzer
JPS5627024B2 (nl) * 1973-01-09 1981-06-22
US3956702A (en) * 1974-07-01 1976-05-11 Zenith Radio Corporation Band decoder for all-channel digital tuning system
DE2437974C3 (de) * 1974-08-07 1979-04-26 Texas Instruments Deutschland Gmbh, 8050 Freising Kanalsuch- und Kanalwählanordnung
US3943449A (en) * 1974-09-09 1976-03-09 Zenith Radio Corporation Multi-speed ramp for a varactor tuning system
DE2558416C2 (de) * 1974-12-24 1985-05-23 Fujitsu Ten Ltd., Kobe, Hyogo Rundfunkempfänger
DE2556951B2 (de) * 1974-12-27 1981-07-16 Fujitsu Ten Ltd., Kobe, Hyogo Abstimmeinrichtung für Funkempfänger
JPS5185303A (nl) * 1975-01-23 1976-07-26 Tokyo Shibaura Electric Co
DE2533072C3 (de) * 1975-07-24 1978-10-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für Hochfrequenzempfangsgeräte
US4070629A (en) * 1976-10-21 1978-01-24 Zenith Radio Corporation High speed tuning system

Also Published As

Publication number Publication date
DE2715024B2 (de) 1981-05-07
NL7703908A (nl) 1977-10-11
DE2715024A1 (de) 1977-10-20
DE2759714C2 (de) 1985-08-14
DE2759715C2 (de) 1983-11-24
US4207529A (en) 1980-06-10
NL187949B (nl) 1991-09-16

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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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