FR2333384A1 - Dispositif d'accord auxiliaire pour recepteur auto-radio a modulation de frequence - Google Patents

Dispositif d'accord auxiliaire pour recepteur auto-radio a modulation de frequence

Info

Publication number
FR2333384A1
FR2333384A1 FR7635810A FR7635810A FR2333384A1 FR 2333384 A1 FR2333384 A1 FR 2333384A1 FR 7635810 A FR7635810 A FR 7635810A FR 7635810 A FR7635810 A FR 7635810A FR 2333384 A1 FR2333384 A1 FR 2333384A1
Authority
FR
France
Prior art keywords
afc system
tuner
interference pulses
automatic
car receiver
Prior art date
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.)
Withdrawn
Application number
FR7635810A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of FR2333384A1 publication Critical patent/FR2333384A1/fr
Withdrawn legal-status Critical Current

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
    • H03J7/026—Means preventing a wrong working of the automatic frequency correction in case of fading or bad signal/noise ratio
    • 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
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking

Landscapes

  • Noise Elimination (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
FR7635810A 1975-11-27 1976-11-26 Dispositif d'accord auxiliaire pour recepteur auto-radio a modulation de frequence Withdrawn FR2333384A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2553303A DE2553303C3 (de) 1975-11-27 1975-11-27 Abstimmhilfe für einen FM-Autoempfänger

Publications (1)

Publication Number Publication Date
FR2333384A1 true FR2333384A1 (fr) 1977-06-24

Family

ID=5962801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7635810A Withdrawn FR2333384A1 (fr) 1975-11-27 1976-11-26 Dispositif d'accord auxiliaire pour recepteur auto-radio a modulation de frequence

Country Status (4)

Country Link
BR (1) BR7607863A (pt)
DE (1) DE2553303C3 (pt)
FR (1) FR2333384A1 (pt)
ZA (1) ZA767087B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404342A1 (fr) * 1977-09-24 1979-04-20 Clarion Co Ltd Perfectionnement a un circuit porte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA81769B (en) * 1980-02-18 1982-02-24 Sangamo Weston Receivers suitable for use in remotely-operable switching devices and data transmission systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE703170C (de) * 1938-11-12 1941-03-03 Blaupunkt Werke Gmbh Hochfrequenzgeraet mit Einrichtung zur selbsttaetigen Scharfabstimmung
US2901601A (en) * 1957-02-19 1959-08-25 Motorola Inc Radio receiver with impulse noise blanking
US3678394A (en) * 1969-03-24 1972-07-18 Siemens Ag Superheterodyne receiver with automatic tuning to a reception frequency

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315798C3 (de) * 1973-03-29 1981-11-19 Siemens AG, 1000 Berlin und 8000 München Schaltung zur automatischen Frequenznachstimmung in Rundfunk- und Fernsehempfängern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE703170C (de) * 1938-11-12 1941-03-03 Blaupunkt Werke Gmbh Hochfrequenzgeraet mit Einrichtung zur selbsttaetigen Scharfabstimmung
US2901601A (en) * 1957-02-19 1959-08-25 Motorola Inc Radio receiver with impulse noise blanking
US3678394A (en) * 1969-03-24 1972-07-18 Siemens Ag Superheterodyne receiver with automatic tuning to a reception frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404342A1 (fr) * 1977-09-24 1979-04-20 Clarion Co Ltd Perfectionnement a un circuit porte

Also Published As

Publication number Publication date
DE2553303B2 (pt) 1979-03-29
DE2553303C3 (de) 1982-03-11
DE2553303A1 (de) 1977-06-08
BR7607863A (pt) 1977-10-25
ZA767087B (en) 1977-10-26

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Legal Events

Date Code Title Description
ST Notification of lapse