BE871969A - Circuit destine a supprimer des signaux parasites provoques par des egratignures dans un disque d'electrophone - Google Patents

Circuit destine a supprimer des signaux parasites provoques par des egratignures dans un disque d'electrophone

Info

Publication number
BE871969A
BE871969A BE191692A BE191692A BE871969A BE 871969 A BE871969 A BE 871969A BE 191692 A BE191692 A BE 191692A BE 191692 A BE191692 A BE 191692A BE 871969 A BE871969 A BE 871969A
Authority
BE
Belgium
Prior art keywords
electrophone
scratches
disc
signals caused
circuit intended
Prior art date
Application number
BE191692A
Other languages
English (en)
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
Publication of BE871969A publication Critical patent/BE871969A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • 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
BE191692A 1977-11-15 1978-11-13 Circuit destine a supprimer des signaux parasites provoques par des egratignures dans un disque d'electrophone BE871969A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7712534A NL7712534A (nl) 1977-11-15 1977-11-15 Schakeling voor het onderdrukken van storingen tengevolge van krassen in een grammofoonplaat.

Publications (1)

Publication Number Publication Date
BE871969A true BE871969A (fr) 1979-05-14

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
BE191692A BE871969A (fr) 1977-11-15 1978-11-13 Circuit destine a supprimer des signaux parasites provoques par des egratignures dans un disque d'electrophone

Country Status (15)

Country Link
JP (1) JPS5479002A (fr)
AR (1) AR216346A1 (fr)
AT (1) AT357780B (fr)
BE (1) BE871969A (fr)
BR (1) BR7807453A (fr)
CA (1) CA1110548A (fr)
DE (1) DE2849375A1 (fr)
ES (1) ES475021A1 (fr)
FR (1) FR2408965A1 (fr)
GB (1) GB2007945B (fr)
HK (1) HK33882A (fr)
IT (1) IT1101046B (fr)
MX (1) MX147638A (fr)
NL (1) NL7712534A (fr)
SE (1) SE7811667L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430455B (sv) * 1978-04-21 1983-11-14 Nippon Telegraph & Telephone Mottagaranordning med funktion att undertrycka brus under plotsliga avbrott
DE3016779C2 (de) * 1980-04-30 1986-09-18 Siemens AG, 1000 Berlin und 8000 München Knackschutz für die digitale Tonprogrammübertragung
DE3212615C2 (de) * 1982-04-05 1984-09-06 Bayerische Motoren Werke AG, 8000 München Verfahren zum Umschalten der Wiedergabe eines Rundfunksignals auf ein anderes Rundfunksignal und Schaltungsanordnung zur Durchführung des Verfahrens
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.

Also Published As

Publication number Publication date
AT357780B (de) 1980-07-25
MX147638A (es) 1982-12-24
FR2408965A1 (fr) 1979-06-08
SE7811667L (sv) 1979-05-16
HK33882A (en) 1982-07-30
BR7807453A (pt) 1979-07-17
ES475021A1 (es) 1979-04-16
AR216346A1 (es) 1979-12-14
ATA811878A (de) 1979-12-15
GB2007945B (en) 1982-05-06
GB2007945A (en) 1979-05-23
IT7829694A0 (it) 1978-11-10
CA1110548A (fr) 1981-10-13
JPS5479002A (en) 1979-06-23
DE2849375A1 (de) 1979-05-17
IT1101046B (it) 1985-09-28
NL7712534A (nl) 1979-05-17

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