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AT357780B - CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD - Google Patents

CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD

Info

Publication number
AT357780B
AT357780B AT811878A AT811878A AT357780B AT 357780 B AT357780 B AT 357780B AT 811878 A AT811878 A AT 811878A AT 811878 A AT811878 A AT 811878A AT 357780 B AT357780 B AT 357780B
Authority
AT
Austria
Prior art keywords
record
signal
circuit arrangement
frequency interference
tone frequency
Prior art date
Application number
AT811878A
Other languages
German (de)
Other versions
ATA811878A (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 ATA811878A publication Critical patent/ATA811878A/en
Application granted granted Critical
Publication of AT357780B publication Critical patent/AT357780B/en

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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
AT811878A 1977-11-15 1978-11-13 CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD AT357780B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7712534A NL7712534A (en) 1977-11-15 1977-11-15 CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE DISC.

Publications (2)

Publication Number Publication Date
ATA811878A ATA811878A (en) 1979-12-15
AT357780B true AT357780B (en) 1980-07-25

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
AT811878A AT357780B (en) 1977-11-15 1978-11-13 CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD

Country Status (15)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430455B (en) * 1978-04-21 1983-11-14 Nippon Telegraph & Telephone RECEIVER DEVICE WITH THE FUNCTION TO COMPRESS NOISE DURING Sudden Interruptions
DE3016779C2 (en) * 1980-04-30 1986-09-18 Siemens AG, 1000 Berlin und 8000 München Click protection for digital audio program transmission
DE3212615C2 (en) * 1982-04-05 1984-09-06 Bayerische Motoren Werke AG, 8000 München Method for switching the reproduction of a broadcast signal to another broadcast signal and circuit arrangement for carrying out the method
NL8402322A (en) * 1984-07-23 1986-02-17 Philips Nv DEVICE FOR DETECTING IMPULSE INTERFERENCES, AND A DEVICE FOR SUPPRESSING IMPULSE INTERFERENCES, INCLUDING DEVICE FOR DETECTING IMPULSE INTERFERENCES.

Also Published As

Publication number Publication date
IT7829694A0 (en) 1978-11-10
DE2849375A1 (en) 1979-05-17
GB2007945A (en) 1979-05-23
CA1110548A (en) 1981-10-13
ES475021A1 (en) 1979-04-16
BE871969A (en) 1979-05-14
NL7712534A (en) 1979-05-17
JPS5479002A (en) 1979-06-23
FR2408965A1 (en) 1979-06-08
HK33882A (en) 1982-07-30
BR7807453A (en) 1979-07-17
GB2007945B (en) 1982-05-06
MX147638A (en) 1982-12-24
AR216346A1 (en) 1979-12-14
SE7811667L (en) 1979-05-16
ATA811878A (en) 1979-12-15
IT1101046B (en) 1985-09-28

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