HK33882A - Circuit for suppressing noise caused by scratches on a gramophone record - Google Patents

Circuit for suppressing noise caused by scratches on a gramophone record

Info

Publication number
HK33882A
HK33882A HK338/82A HK33882A HK33882A HK 33882 A HK33882 A HK 33882A HK 338/82 A HK338/82 A HK 338/82A HK 33882 A HK33882 A HK 33882A HK 33882 A HK33882 A HK 33882A
Authority
HK
Hong Kong
Prior art keywords
scratches
circuit
noise caused
suppressing noise
gramophone record
Prior art date
Application number
HK338/82A
Inventor
Johannes Bernard Heinrich Peek
Johan Machiel Schmidt
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 HK33882A publication Critical patent/HK33882A/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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
HK338/82A 1977-11-15 1982-07-22 Circuit for suppressing noise caused by scratches on a gramophone record HK33882A (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 (1)

Publication Number Publication Date
HK33882A true HK33882A (en) 1982-07-30

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
HK338/82A HK33882A (en) 1977-11-15 1982-07-22 Circuit for suppressing noise caused by scratches on a gramophone 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
SE7811667L (en) 1979-05-16
JPS5479002A (en) 1979-06-23
GB2007945A (en) 1979-05-23
MX147638A (en) 1982-12-24
AT357780B (en) 1980-07-25
ES475021A1 (en) 1979-04-16
AR216346A1 (en) 1979-12-14
BR7807453A (en) 1979-07-17
NL7712534A (en) 1979-05-17
GB2007945B (en) 1982-05-06
FR2408965A1 (en) 1979-06-08
CA1110548A (en) 1981-10-13
BE871969A (en) 1979-05-14
DE2849375A1 (en) 1979-05-17
IT1101046B (en) 1985-09-28
IT7829694A0 (en) 1978-11-10
ATA811878A (en) 1979-12-15

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