MX147638A - Mejoras en circuito para suprimir ruido de audiofrecuencia en una senal que se origina de un disco gramofonico - Google Patents

Mejoras en circuito para suprimir ruido de audiofrecuencia en una senal que se origina de un disco gramofonico

Info

Publication number
MX147638A
MX147638A MX175572A MX17557278A MX147638A MX 147638 A MX147638 A MX 147638A MX 175572 A MX175572 A MX 175572A MX 17557278 A MX17557278 A MX 17557278A MX 147638 A MX147638 A MX 147638A
Authority
MX
Mexico
Prior art keywords
circuit
audio frequency
frequency noise
signal originating
suppress audio
Prior art date
Application number
MX175572A
Other languages
English (en)
Spanish (es)
Inventor
Bernhard Heinrich Pee Johannes
Machiel Schmidt Johan
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 MX147638A publication Critical patent/MX147638A/es

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
MX175572A 1977-11-15 1978-11-10 Mejoras en circuito para suprimir ruido de audiofrecuencia en una senal que se origina de un disco gramofonico MX147638A (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
MX147638A true MX147638A (es) 1982-12-24

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
MX175572A MX147638A (es) 1977-11-15 1978-11-10 Mejoras en circuito para suprimir ruido de audiofrecuencia en una senal que se origina de un disco gramofonico

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
AT357780B (de) 1980-07-25
FR2408965A1 (fr) 1979-06-08
BE871969A (fr) 1979-05-14
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 (en) 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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