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NL145420B - Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger. - Google Patents

Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.

Info

Publication number
NL145420B
NL145420B NL696916127A NL6916127A NL145420B NL 145420 B NL145420 B NL 145420B NL 696916127 A NL696916127 A NL 696916127A NL 6916127 A NL6916127 A NL 6916127A NL 145420 B NL145420 B NL 145420B
Authority
NL
Netherlands
Prior art keywords
circuit
radio receiver
suppressing trouble
trouble
suppressing
Prior art date
Application number
NL696916127A
Other languages
English (en)
Other versions
NL6916127A (nl
Inventor
Gerard Hepp
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL696916127A priority Critical patent/NL145420B/nl
Publication of NL6916127A publication Critical patent/NL6916127A/xx
Priority to ZA706432A priority patent/ZA706432B/xx
Priority to US00082611A priority patent/US3739285A/en
Priority to FR7037947A priority patent/FR2066289A5/fr
Priority to CA096127A priority patent/CA937639A/en
Priority to SE14280/70A priority patent/SE354555B/xx
Priority to DK537770AA priority patent/DK141147B/da
Priority to CH1562870A priority patent/CH518655A/de
Priority to AT952470A priority patent/AT303820B/de
Priority to GB50205/70A priority patent/GB1279756A/en
Priority to BE757969D priority patent/BE757969A/xx
Priority to DE2052098A priority patent/DE2052098C3/de
Priority to ES384847A priority patent/ES384847A1/es
Priority to JP45093200A priority patent/JPS517361B1/ja
Publication of NL145420B publication Critical patent/NL145420B/nl
Priority to CA231,670A priority patent/CA1037566B/en

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
    • H03G3/28—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems in frequency-modulation receivers ; in angle-modulation receivers
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)
NL696916127A 1969-10-25 1969-10-25 Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger. NL145420B (nl)

Priority Applications (15)

Application Number Priority Date Filing Date Title
NL696916127A NL145420B (nl) 1969-10-25 1969-10-25 Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.
ZA706432A ZA706432B (en) 1969-10-25 1970-09-21 Circuit arrangement for suppressing interferences in an fm radio receiver
US00082611A US3739285A (en) 1969-10-25 1970-10-21 Circuit arrangement for suppressing interferences in an fm radio receiver
FR7037947A FR2066289A5 (nl) 1969-10-25 1970-10-21
CA096127A CA937639A (en) 1969-10-25 1970-10-21 Circuit arrangement for suppressing interferences in an fm radio receiver
GB50205/70A GB1279756A (en) 1969-10-25 1970-10-22 Suppressing interference in fm radio receivers
DK537770AA DK141147B (da) 1969-10-25 1970-10-22 Kobling til undertrykkelse af interferenser i en FM-radiomodtager.
SE14280/70A SE354555B (nl) 1969-10-25 1970-10-22
CH1562870A CH518655A (de) 1969-10-25 1970-10-22 Schaltungsanordnung zum Unterdrücken von Störungen in einem FM-Rundfunkempfänger
AT952470A AT303820B (de) 1969-10-25 1970-10-22 Schaltungsanordnung zum Unterdrücken von Störungen in einem FM-Rundfunkempfänger
BE757969D BE757969A (fr) 1969-10-25 1970-10-23 Circuit permettant de supprimer des parasites dans un radio-recepteur fm
DE2052098A DE2052098C3 (de) 1969-10-25 1970-10-23 Schaltungsanordnung zum Unterdrücken von Störungen in einem FM-Rundfunkempfänger
ES384847A ES384847A1 (es) 1969-10-25 1970-10-23 Una disposicion de circuito para la supresion de interfe- rencias en un radiorreceptor de frecuencia modulada.
JP45093200A JPS517361B1 (nl) 1969-10-25 1970-10-24
CA231,670A CA1037566B (en) 1969-10-25 1975-07-17 Circuit arrangement for suppressing interferences in an fm radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL696916127A NL145420B (nl) 1969-10-25 1969-10-25 Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.

Publications (2)

Publication Number Publication Date
NL6916127A NL6916127A (nl) 1969-12-29
NL145420B true NL145420B (nl) 1975-03-17

Family

ID=19808220

Family Applications (1)

Application Number Title Priority Date Filing Date
NL696916127A NL145420B (nl) 1969-10-25 1969-10-25 Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.

Country Status (14)

Country Link
US (1) US3739285A (nl)
JP (1) JPS517361B1 (nl)
AT (1) AT303820B (nl)
BE (1) BE757969A (nl)
CA (2) CA937639A (nl)
CH (1) CH518655A (nl)
DE (1) DE2052098C3 (nl)
DK (1) DK141147B (nl)
ES (1) ES384847A1 (nl)
FR (1) FR2066289A5 (nl)
GB (1) GB1279756A (nl)
NL (1) NL145420B (nl)
SE (1) SE354555B (nl)
ZA (1) ZA706432B (nl)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225681B1 (nl) * 1970-12-11 1977-07-09
IT1000292B (it) * 1973-12-11 1976-03-30 Autovox Spa Circuito antidisturbi in particola re per un ricevitore a modulazione di frequenza
US3978412A (en) * 1975-05-02 1976-08-31 Rockwell International Corporation Radio receiver noise suppression
JPS5626362Y2 (nl) * 1975-07-16 1981-06-23
DE2538309C3 (de) * 1975-08-28 1982-12-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und Anordnung zur gemischten Übertragung von Sprache und Daten auf einem NF-Kanal
JPS593905B2 (ja) * 1975-09-02 1984-01-26 パイオニア株式会社 Ｍｐｘ フクチヨウキノ パイロツトシンゴウジヨキヨソウチ
NL7511000A (nl) * 1975-09-18 1977-03-22 Novanex Automation Nv Ruisonderdrukker, meer in het bijzonder voor een elektronische echoinrichting.
IT1052399B (it) * 1975-11-25 1981-06-20 Autovox Spa Circuito elettronico per la soppressione dei disturbi nei radioricevitori
JPS5368901A (en) * 1976-12-02 1978-06-19 Clarion Co Ltd Noise limiting system
JPS5816653B2 (ja) * 1976-03-19 1983-04-01 三洋電機株式会社 Ｆｍ受信機のパルス性雑音除去装置
JPS52132712A (en) * 1976-04-30 1977-11-07 Clarion Co Ltd Noise deleting system
GB1578374A (en) * 1976-11-08 1980-11-05 Clarion Co Ltd Noise reduction in audio reproducing systems
NL188133C (nl) * 1976-12-28 1992-04-01 Clarion Co Ltd Ruisonderdrukkingsschakeling voor een am-ontvanger.
GB1562891A (en) * 1977-02-22 1980-03-19 Toko Inc Noise cancelling systems for fm receivers
JPS53120306A (en) * 1977-03-30 1978-10-20 Hitachi Ltd Sound demodulation system
DE2723776A1 (de) * 1977-05-26 1978-11-30 Bosch Gmbh Robert Vorrichtung zur stoerimpulsunterdrueckung
SE432683B (sv) * 1977-06-17 1984-04-09 Sharp Kk Storningsreducerande krets for en fm-stereomottagare
JPS5416108A (en) * 1977-07-07 1979-02-06 Pioneer Electronic Corp Receiver antenna input circuit
JPS5932015B2 (ja) * 1978-02-01 1984-08-06 ケイディディ株式会社 インパルス性雑音の除去方式
JPS54122004A (en) * 1978-03-15 1979-09-21 Pioneer Electronic Corp Fm receiver
US4278901A (en) * 1978-06-09 1981-07-14 Sanyo Electric Co., Ltd. Pulsive component detecting apparatus
US4289981A (en) * 1978-06-21 1981-09-15 Sanyo Electric Co., Ltd. Pulsive component detecting apparatus
CA1176336A (en) * 1979-04-23 1984-10-16 Motorola, Inc. Noise blanker which tracks average noise level
JPS56131196A (en) * 1980-03-05 1981-10-14 Kenkyusho Ai Esu Yuugen Clamping device doubling as cover opening
US4331157A (en) * 1980-07-09 1982-05-25 Stimtech, Inc. Mutually noninterfering transcutaneous nerve stimulation and patient monitoring
SE458976B (sv) * 1980-12-04 1989-05-22 Mitsubishi Electric Corp Flerstationsmottagare
DE3153784B4 (de) * 1980-12-04 2005-06-16 Mitsubishi Denki K.K. Mehrstationsempfänger mit Stillabstimmschaltkreis
JPS57121345A (en) * 1981-01-20 1982-07-28 Sanyo Electric Co Ltd Pulse noise eliminating circuit
DE3220429A1 (de) * 1982-05-29 1983-12-01 Blaupunkt-Werke Gmbh, 3200 Hildesheim Ukw-stereoempfaenger mit stoerimpulsausstastung
NL8203384A (nl) * 1982-08-31 1984-03-16 Philips Nv Fm-stereo-ontvanger.
NL8402322A (nl) * 1984-07-23 1986-02-17 Philips Nv Inrichting voor het detekteren van impulsachtige storingen, en een inrichting voor het onderdrukken van impulsachtige storingen voorzien van een inrichting voor het detekteren van impulsachtige storingen.
JP7070347B2 (ja) * 2018-11-06 2022-05-18 オムロン株式会社 非接触給電装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464279A (en) * 1947-09-26 1949-03-15 Abe M Zarem Circuits for pulsing essentially capacitive loads
US3191123A (en) * 1961-09-19 1965-06-22 Motorola Inc Radio receiver impulse noise blanking circuit
US3140446A (en) * 1962-08-03 1964-07-07 Gen Electric Communication receiver with noise blanking
US3462691A (en) * 1966-08-05 1969-08-19 Motorola Inc Detector system using blanking
US3588705A (en) * 1969-11-12 1971-06-28 Nasa Frequency-modulation demodulator threshold extension device

Also Published As

Publication number Publication date
US3739285A (en) 1973-06-12
FR2066289A5 (nl) 1971-08-06
AT303820B (de) 1972-12-11
BE757969A (fr) 1971-04-23
CH518655A (de) 1972-01-31
DK141147B (da) 1980-01-21
DE2052098C3 (de) 1975-03-27
DK141147C (nl) 1980-07-14
ES384847A1 (es) 1973-03-16
DE2052098A1 (de) 1971-05-06
DE2052098B2 (de) 1974-08-08
CA937639A (en) 1973-11-27
ZA706432B (en) 1971-05-27
JPS517361B1 (nl) 1976-03-06
NL6916127A (nl) 1969-12-29
CA1037566B (en) 1978-08-29
GB1279756A (en) 1972-06-28
SE354555B (nl) 1973-03-12

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS

V4 Discontinued because of reaching the maximum lifetime of a patent