ES475021A1 - Un circuito para suprimir ruido de audiofrecuencia en una senal procedente de un disco fonografico. - Google Patents

Un circuito para suprimir ruido de audiofrecuencia en una senal procedente de un disco fonografico.

Info

Publication number
ES475021A1
ES475021A1 ES475021A ES475021A ES475021A1 ES 475021 A1 ES475021 A1 ES 475021A1 ES 475021 A ES475021 A ES 475021A ES 475021 A ES475021 A ES 475021A ES 475021 A1 ES475021 A1 ES 475021A1
Authority
ES
Spain
Prior art keywords
noise
input
circuit
suppressed
coupled
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.)
Expired
Application number
ES475021A
Other languages
English (en)
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES475021A1 publication Critical patent/ES475021A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03G3/3005—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
    • 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)
  • Multimedia (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Confectionery (AREA)
ES475021A 1977-11-15 1978-11-13 Un circuito para suprimir ruido de audiofrecuencia en una senal procedente de un disco fonografico. Expired ES475021A1 (es)

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
ES475021A1 true ES475021A1 (es) 1979-04-16

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475021A Expired ES475021A1 (es) 1977-11-15 1978-11-13 Un circuito para suprimir ruido de audiofrecuencia en una senal procedente de un disco fonografico.

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
IT1101046B (it) 1985-09-28
NL7712534A (nl) 1979-05-17
FR2408965A1 (fr) 1979-06-08
ATA811878A (de) 1979-12-15
MX147638A (es) 1982-12-24
SE7811667L (sv) 1979-05-16
AR216346A1 (es) 1979-12-14
AT357780B (de) 1980-07-25
BR7807453A (pt) 1979-07-17
IT7829694A0 (it) 1978-11-10
DE2849375A1 (de) 1979-05-17
GB2007945A (en) 1979-05-23
CA1110548A (fr) 1981-10-13
GB2007945B (en) 1982-05-06
HK33882A (en) 1982-07-30
JPS5479002A (en) 1979-06-23
BE871969A (fr) 1979-05-14

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