JPS5627024B2 - - Google Patents

Info

Publication number
JPS5627024B2
JPS5627024B2 JP543173A JP543173A JPS5627024B2 JP S5627024 B2 JPS5627024 B2 JP S5627024B2 JP 543173 A JP543173 A JP 543173A JP 543173 A JP543173 A JP 543173A JP S5627024 B2 JPS5627024 B2 JP S5627024B2
Authority
JP
Japan
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.)
Expired
Application number
JP543173A
Other versions
JPS4992914A (ja
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 filed Critical
Priority to JP543173A priority Critical patent/JPS5627024B2/ja
Priority to US430483A priority patent/US3882400A/en
Priority to GB28174A priority patent/GB1445031A/en
Priority to CA189,731A priority patent/CA1044765A/en
Priority to DE19742400943 priority patent/DE2400943C2/de
Priority to IT1924374A priority patent/IT1017534B/it
Priority to NL7400316A priority patent/NL178554C/xx
Priority to FR7400735A priority patent/FR2332659A1/fr
Publication of JPS4992914A publication Critical patent/JPS4992914A/ja
Priority to CA312,726A priority patent/CA1052447A/en
Publication of JPS5627024B2 publication Critical patent/JPS5627024B2/ja
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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
    • 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
    • H03J7/285—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 the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
JP543173A 1972-11-27 1973-01-09 Expired JPS5627024B2 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP543173A JPS5627024B2 (ja) 1973-01-09 1973-01-09
US430483A US3882400A (en) 1972-11-27 1974-01-03 Broadcast receiver
GB28174A GB1445031A (en) 1973-01-09 1974-01-03 Broadcast receivers
CA189,731A CA1044765A (en) 1973-01-09 1974-01-08 Broadcast receiver
IT1924374A IT1017534B (it) 1973-01-09 1974-01-09 Radioricevitore
DE19742400943 DE2400943C2 (de) 1973-01-09 1974-01-09 Stummschaltungsanordnung für einen Rundfunkempfänger mit digitaler Frequenzaufbereitung des Oszillatorsignales
NL7400316A NL178554C (nl) 1973-01-09 1974-01-09 Digitale ontvanger.
FR7400735A FR2332659A1 (fr) 1973-01-09 1974-01-09 Recepteur radiophonique a selection d'emetteur
CA312,726A CA1052447A (en) 1973-01-09 1978-10-05 Broadcast receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP543173A JPS5627024B2 (ja) 1973-01-09 1973-01-09

Publications (2)

Publication Number Publication Date
JPS4992914A JPS4992914A (ja) 1974-09-04
JPS5627024B2 true JPS5627024B2 (ja) 1981-06-22

Family

ID=11610987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP543173A Expired JPS5627024B2 (ja) 1972-11-27 1973-01-09

Country Status (7)

Country Link
JP (1) JPS5627024B2 (ja)
CA (1) CA1044765A (ja)
DE (1) DE2400943C2 (ja)
FR (1) FR2332659A1 (ja)
GB (1) GB1445031A (ja)
IT (1) IT1017534B (ja)
NL (1) NL178554C (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517389C2 (de) * 1975-04-19 1982-09-23 Blaupunkt-Werke Gmbh, 3200 Hildesheim Anordnung zum Umschalten der Empfindlichkeit von Empfangsgeräten
IT1050947B (it) * 1975-11-17 1981-03-20 Indesit Circuito di selezione di segnali
US4207529A (en) 1976-04-08 1980-06-10 Fujitsu Ten Limited Radio receiver
JPS54102814A (en) * 1978-01-30 1979-08-13 Sony Corp Synthesizer receiver
DE2804590A1 (de) * 1978-02-03 1979-08-09 Licentia Gmbh Schalteranordnung zur stummschaltung in einem rundfunkempfaenger
JPS54125911A (en) * 1978-03-24 1979-09-29 Japan Radio Co Ltd Automatic scan receiver
JPS54148417U (ja) * 1978-04-07 1979-10-16
IT1107168B (it) 1978-06-26 1985-11-25 Indesit Perfezionamenti a dispositivi pr la selezione di un segnale
NL184594C (nl) * 1979-09-04 1989-09-01 Philips Nv Radio-ontvanger voorzien van een frequentie gesleutelde lus met audiofrequente terugkoppeling, en een stomschakeling.

Also Published As

Publication number Publication date
NL7400316A (ja) 1974-07-11
GB1445031A (en) 1976-08-04
FR2332659A1 (fr) 1977-06-17
FR2332659B1 (ja) 1978-03-24
DE2400943A1 (de) 1975-02-27
JPS4992914A (ja) 1974-09-04
NL178554C (nl) 1986-04-01
CA1044765A (en) 1978-12-19
DE2400943C2 (de) 1984-02-23
IT1017534B (it) 1977-08-10
NL178554B (nl) 1985-11-01

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