IT7829694A0 - CIRCUIT FOR SUPPRESSION OF NOISE CAUSED BY SCRATCHES ON A PHONOGRAPH RECORD. - Google Patents

CIRCUIT FOR SUPPRESSION OF NOISE CAUSED BY SCRATCHES ON A PHONOGRAPH RECORD.

Info

Publication number
IT7829694A0
IT7829694A0 IT7829694A IT2969478A IT7829694A0 IT 7829694 A0 IT7829694 A0 IT 7829694A0 IT 7829694 A IT7829694 A IT 7829694A IT 2969478 A IT2969478 A IT 2969478A IT 7829694 A0 IT7829694 A0 IT 7829694A0
Authority
IT
Italy
Prior art keywords
scratches
suppression
circuit
noise caused
phonograph record
Prior art date
Application number
IT7829694A
Other languages
Italian (it)
Other versions
IT1101046B (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 IT7829694A0 publication Critical patent/IT7829694A0/en
Application granted granted Critical
Publication of IT1101046B publication Critical patent/IT1101046B/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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Confectionery (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
IT29694/78A 1977-11-15 1978-11-10 CIRCUIT FOR THE SUPPRESSION OF NOISE CAUSED BY SCRATCHES ON A PHONO DISC IT1101046B (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
IT7829694A0 true IT7829694A0 (en) 1978-11-10
IT1101046B IT1101046B (en) 1985-09-28

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29694/78A IT1101046B (en) 1977-11-15 1978-11-10 CIRCUIT FOR THE SUPPRESSION OF NOISE CAUSED BY SCRATCHES ON A PHONO DISC

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
IT1101046B (en) 1985-09-28
NL7712534A (en) 1979-05-17
FR2408965A1 (en) 1979-06-08
ATA811878A (en) 1979-12-15
MX147638A (en) 1982-12-24
ES475021A1 (en) 1979-04-16
SE7811667L (en) 1979-05-16
AR216346A1 (en) 1979-12-14
AT357780B (en) 1980-07-25
BR7807453A (en) 1979-07-17
DE2849375A1 (en) 1979-05-17
GB2007945A (en) 1979-05-23
CA1110548A (en) 1981-10-13
GB2007945B (en) 1982-05-06
HK33882A (en) 1982-07-30
JPS5479002A (en) 1979-06-23
BE871969A (en) 1979-05-14

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