NL7712534A - CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE DISC. - Google Patents

CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE DISC.

Info

Publication number
NL7712534A
NL7712534A NL7712534A NL7712534A NL7712534A NL 7712534 A NL7712534 A NL 7712534A NL 7712534 A NL7712534 A NL 7712534A NL 7712534 A NL7712534 A NL 7712534A NL 7712534 A NL7712534 A NL 7712534A
Authority
NL
Netherlands
Prior art keywords
scratches
circuit
faults due
gramophone disc
suppressing
Prior art date
Application number
NL7712534A
Other languages
Dutch (nl)
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
Priority to NL7712534A priority Critical patent/NL7712534A/en
Priority to AR274059A priority patent/AR216346A1/en
Priority to CA314,371A priority patent/CA1110548A/en
Priority to MX175572A priority patent/MX147638A/en
Priority to GB7844030A priority patent/GB2007945B/en
Priority to IT29694/78A priority patent/IT1101046B/en
Priority to FR7831985A priority patent/FR2408965A1/en
Priority to ES475021A priority patent/ES475021A1/en
Priority to BE191692A priority patent/BE871969A/en
Priority to SE7811667A priority patent/SE7811667L/en
Priority to AT811878A priority patent/AT357780B/en
Priority to BR7807453A priority patent/BR7807453A/en
Priority to DE19782849375 priority patent/DE2849375A1/en
Priority to JP14171078A priority patent/JPS5479002A/en
Publication of NL7712534A publication Critical patent/NL7712534A/en
Priority to HK338/82A priority 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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Confectionery (AREA)
NL7712534A 1977-11-15 1977-11-15 CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE DISC. NL7712534A (en)

Priority Applications (15)

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.
AR274059A AR216346A1 (en) 1977-11-15 1978-10-12 SCRATCH NOISE SUPPRESSION CIRCUIT ON A PHONOGRAPHIC DISC
CA314,371A CA1110548A (en) 1977-11-15 1978-10-26 Circuit for suppressing noise caused by scratches on a gramophone record
MX175572A MX147638A (en) 1977-11-15 1978-11-10 IMPROVEMENTS IN CIRCUIT TO SUPPRESS AUDIO FREQUENCY NOISE IN A SIGNAL ORIGINATING FROM A GRAMOPHONE DISC
GB7844030A GB2007945B (en) 1977-11-15 1978-11-10 Circuit for suppressing noise caused by scratches on a gramophone record
IT29694/78A IT1101046B (en) 1977-11-15 1978-11-10 CIRCUIT FOR THE SUPPRESSION OF NOISE CAUSED BY SCRATCHES ON A PHONO DISC
ES475021A ES475021A1 (en) 1977-11-15 1978-11-13 Record noise suppression system
FR7831985A FR2408965A1 (en) 1977-11-15 1978-11-13 CIRCUIT INTENDED TO REMOVE PARASITE SIGNALS CAUSED BY SCRATCHES IN AN ELECTROPHONE DISC
BE191692A BE871969A (en) 1977-11-15 1978-11-13 CIRCUIT INTENDED TO REMOVE PARASITE SIGNALS CAUSED BY SCRATCHES IN AN ELECTROPHONE DISC
SE7811667A SE7811667L (en) 1977-11-15 1978-11-13 COUPLING FOR SUPPRESSION OF INTERRUPTIONS CAUSED BY REPORTS ON A GRAMPHONE DISC
AT811878A AT357780B (en) 1977-11-15 1978-11-13 CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD
BR7807453A BR7807453A (en) 1977-11-15 1978-11-13 NOISE SUPPRESSION CIRCUIT ON A SIGNAL ORIGINATING FROM A PHONOGRAPH DISK
DE19782849375 DE2849375A1 (en) 1977-11-15 1978-11-14 CIRCUIT ARRANGEMENT FOR SUPPRESSING MALFUNCTIONS AS A RESULT OF DAMAGE IN A RECORD
JP14171078A JPS5479002A (en) 1977-11-15 1978-11-15 Audio frequency noise suppressor
HK338/82A HK33882A (en) 1977-11-15 1982-07-22 Circuit for suppressing noise caused by scratches on a gramophone record

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
NL7712534A true NL7712534A (en) 1979-05-17

Family

ID=19829537

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7712534A NL7712534A (en) 1977-11-15 1977-11-15 CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE 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
DE2916127C2 (en) * 1978-04-21 1984-03-22 Nippon Telegraph & Telephone Public Corp., Tokyo Device for the suppression of temporarily occurring interfering noises
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
IT7829694A0 (en) 1978-11-10
JPS5479002A (en) 1979-06-23
CA1110548A (en) 1981-10-13
BE871969A (en) 1979-05-14
DE2849375A1 (en) 1979-05-17
BR7807453A (en) 1979-07-17
GB2007945B (en) 1982-05-06
HK33882A (en) 1982-07-30
AT357780B (en) 1980-07-25
AR216346A1 (en) 1979-12-14
ES475021A1 (en) 1979-04-16
FR2408965A1 (en) 1979-06-08
ATA811878A (en) 1979-12-15
IT1101046B (en) 1985-09-28
MX147638A (en) 1982-12-24
GB2007945A (en) 1979-05-23

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Legal Events

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BV The patent application has lapsed