BR7807453A - Circuito para a supressao de ruido em um sinal que se origina de um disco de fonografo - Google Patents

Circuito para a supressao de ruido em um sinal que se origina de um disco de fonografo

Info

Publication number
BR7807453A
BR7807453A BR7807453A BR7807453A BR7807453A BR 7807453 A BR7807453 A BR 7807453A BR 7807453 A BR7807453 A BR 7807453A BR 7807453 A BR7807453 A BR 7807453A BR 7807453 A BR7807453 A BR 7807453A
Authority
BR
Brazil
Prior art keywords
noise suppression
suppression circuit
signal originating
phonograph disk
phonograph
Prior art date
Application number
BR7807453A
Other languages
English (en)
Portuguese (pt)
Inventor
J Schmidt
J Peek
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 BR7807453A publication Critical patent/BR7807453A/pt

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)
  • Confectionery (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
BR7807453A 1977-11-15 1978-11-13 Circuito para a supressao de ruido em um sinal que se origina de um disco de fonografo BR7807453A (pt)

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
BR7807453A true BR7807453A (pt) 1979-07-17

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7807453A BR7807453A (pt) 1977-11-15 1978-11-13 Circuito para a supressao de ruido em um sinal que se origina de um disco de fonografo

Country Status (15)

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

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
SE7811667L (sv) 1979-05-16
HK33882A (en) 1982-07-30
JPS5479002A (en) 1979-06-23
GB2007945A (en) 1979-05-23
MX147638A (es) 1982-12-24
AT357780B (de) 1980-07-25
ES475021A1 (es) 1979-04-16
AR216346A1 (es) 1979-12-14
NL7712534A (nl) 1979-05-17
GB2007945B (en) 1982-05-06
FR2408965A1 (fr) 1979-06-08
CA1110548A (en) 1981-10-13
BE871969A (fr) 1979-05-14
DE2849375A1 (de) 1979-05-17
IT1101046B (it) 1985-09-28
IT7829694A0 (it) 1978-11-10
ATA811878A (de) 1979-12-15

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