FR2349907A1 - Systeme servant a supprimer les bruits - Google Patents

Systeme servant a supprimer les bruits

Info

Publication number
FR2349907A1
FR2349907A1 FR7713092A FR7713092A FR2349907A1 FR 2349907 A1 FR2349907 A1 FR 2349907A1 FR 7713092 A FR7713092 A FR 7713092A FR 7713092 A FR7713092 A FR 7713092A FR 2349907 A1 FR2349907 A1 FR 2349907A1
Authority
FR
France
Prior art keywords
noise suppression
suppression system
noise
suppression
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.)
Granted
Application number
FR7713092A
Other languages
English (en)
Other versions
FR2349907B1 (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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co 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 Clarion Co Ltd filed Critical Clarion Co Ltd
Publication of FR2349907A1 publication Critical patent/FR2349907A1/fr
Application granted granted Critical
Publication of FR2349907B1 publication Critical patent/FR2349907B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)
FR7713092A 1976-04-30 1977-04-29 Systeme servant a supprimer les bruits Granted FR2349907A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4965776A JPS52132712A (en) 1976-04-30 1976-04-30 Noise deleting system

Publications (2)

Publication Number Publication Date
FR2349907A1 true FR2349907A1 (fr) 1977-11-25
FR2349907B1 FR2349907B1 (fr) 1981-02-06

Family

ID=12837245

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713092A Granted FR2349907A1 (fr) 1976-04-30 1977-04-29 Systeme servant a supprimer les bruits

Country Status (7)

Country Link
US (1) US4130805A (fr)
JP (1) JPS52132712A (fr)
DE (1) DE2719392C3 (fr)
FR (1) FR2349907A1 (fr)
GB (1) GB1563873A (fr)
NL (1) NL174107C (fr)
SE (1) SE419687B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373196A1 (fr) * 1976-12-02 1978-06-30 Clarion Co Ltd Systeme d'elimination du bruit
FR2394935A1 (fr) * 1977-06-17 1979-01-12 Sharp Kk Circuit pour la reduction des parasites dans un radio-recepteur fm
EP0056464A2 (fr) * 1981-01-20 1982-07-28 Sanyo Electric Co., Ltd. Dispositif d'élimination d'impulsions parasites
EP0300565A1 (fr) * 1987-07-24 1989-01-25 Laboratoires D'electronique Philips Dispositif de décodage de signaux lors de transmissions en modulation de fréquence

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4249260A (en) * 1978-07-27 1981-02-03 Fisher Charles B Noise-reducing apparatus
JPS6341762Y2 (fr) * 1981-03-02 1988-11-02
JPS605692A (ja) * 1983-06-24 1985-01-12 Victor Co Of Japan Ltd 映像信号処理装置
JPH0638635B2 (ja) * 1987-12-31 1994-05-18 日本テレビ放送網株式会社 テレビジョン信号の送信装置
US5014351A (en) * 1989-06-05 1991-05-07 Motorola, Inc. Method and apparatus for reducing alternator noise

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB959316A (en) * 1961-03-14 1964-05-27 Standard Telephones Cables Ltd Improvements in or relating to signal transmission apparatus
US3213450A (en) * 1962-12-21 1965-10-19 Gen Electric Undesired signal canceller
IT999503B (it) * 1966-10-13 1976-03-10 Cit Alcatel Dispositivo per migliorare il rap porto segnale rumore di segnali captati da antenne a piu elementi
US3611145A (en) * 1968-08-05 1971-10-05 Lummus Co Method and apparatus for the suppression of noise in process control systems
NL145420B (nl) * 1969-10-25 1975-03-17 Philips Nv Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.
DE2243411B2 (de) * 1972-09-04 1978-01-19 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zum unterdruecken von stoerungen in einem elektrischen signal
US3851253A (en) * 1973-05-25 1974-11-26 Motorola Inc Automatically adjustable fm receiver squelch
JPS50102218A (fr) * 1974-01-09 1975-08-13
US3947636A (en) * 1974-08-12 1976-03-30 Edgar Albert D Transient noise filter employing crosscorrelation to detect noise and autocorrelation to replace the noisey segment
US3978412A (en) * 1975-05-02 1976-08-31 Rockwell International Corporation Radio receiver noise suppression

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373196A1 (fr) * 1976-12-02 1978-06-30 Clarion Co Ltd Systeme d'elimination du bruit
FR2394935A1 (fr) * 1977-06-17 1979-01-12 Sharp Kk Circuit pour la reduction des parasites dans un radio-recepteur fm
EP0056464A2 (fr) * 1981-01-20 1982-07-28 Sanyo Electric Co., Ltd. Dispositif d'élimination d'impulsions parasites
EP0056464A3 (en) * 1981-01-20 1983-05-11 Sanyo Electric Co., Ltd. Pulsive noise removing apparatus
EP0300565A1 (fr) * 1987-07-24 1989-01-25 Laboratoires D'electronique Philips Dispositif de décodage de signaux lors de transmissions en modulation de fréquence
FR2618625A1 (fr) * 1987-07-24 1989-01-27 Labo Electronique Physique Dispositif d'amelioration du decodage de signaux numeriques lors de transmissions en modulation de frequence

Also Published As

Publication number Publication date
DE2719392C3 (de) 1984-08-02
JPS52132712A (en) 1977-11-07
NL7704683A (nl) 1977-11-01
GB1563873A (en) 1980-04-02
FR2349907B1 (fr) 1981-02-06
DE2719392A1 (de) 1977-11-03
DE2719392B2 (de) 1980-01-31
NL174107C (nl) 1984-04-16
JPS569804B2 (fr) 1981-03-04
NL174107B (nl) 1983-11-16
SE7704748L (sv) 1977-10-31
US4130805A (en) 1978-12-19
SE419687B (sv) 1981-08-17

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Legal Events

Date Code Title Description
ST Notification of lapse