BE852618A - Reducteur du moirage perturbateur des enregistreurs d'images a modulation de frequence - Google Patents

Reducteur du moirage perturbateur des enregistreurs d'images a modulation de frequence

Info

Publication number
BE852618A
BE852618A BE175900A BE175900A BE852618A BE 852618 A BE852618 A BE 852618A BE 175900 A BE175900 A BE 175900A BE 175900 A BE175900 A BE 175900A BE 852618 A BE852618 A BE 852618A
Authority
BE
Belgium
Prior art keywords
moirage
disturbing
reducer
frequency modulated
modulated image
Prior art date
Application number
BE175900A
Other languages
English (en)
French (fr)
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of BE852618A publication Critical patent/BE852618A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
    • H04N9/7912—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being intermodulation signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
BE175900A 1976-03-19 1977-03-18 Reducteur du moirage perturbateur des enregistreurs d'images a modulation de frequence BE852618A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/668,379 US4052740A (en) 1976-03-19 1976-03-19 Moire interference reducing circuit for fm video recorders

Publications (1)

Publication Number Publication Date
BE852618A true BE852618A (fr) 1977-07-18

Family

ID=24682098

Family Applications (1)

Application Number Title Priority Date Filing Date
BE175900A BE852618A (fr) 1976-03-19 1977-03-18 Reducteur du moirage perturbateur des enregistreurs d'images a modulation de frequence

Country Status (9)

Country Link
US (1) US4052740A (nl)
JP (1) JPS5923153B2 (nl)
BE (1) BE852618A (nl)
CA (1) CA1105129A (nl)
DE (1) DE2712006C3 (nl)
FR (1) FR2345039A1 (nl)
GB (1) GB1573129A (nl)
IT (1) IT1077963B (nl)
NL (1) NL7701035A (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130811A (en) * 1977-12-27 1978-12-19 Hughes Aircraft Company Modulation system
JPS54143021A (en) * 1978-04-28 1979-11-07 Sony Corp Processing circuit of video signal
NL7805232A (nl) * 1978-05-16 1979-11-20 Philips Nv Werkwijze voor het reduceren van interferentiekomponenten in een frequentiegemoduleerd signaal en inrichting voor het uitvoeren van deze werkwijze.
JPS55117712A (en) * 1979-02-28 1980-09-10 Matsushita Electric Ind Co Ltd Noise reduction circuit of video signal recording and reproducing device
JPS56144690A (en) * 1980-04-14 1981-11-11 Matsushita Electric Ind Co Ltd Recording system for video signal
EP0041872B1 (en) * 1980-06-11 1985-02-27 Matsushita Electric Industrial Co., Ltd. Phase difference compensation between separately recorded luminance and chrominance signals
US4435734A (en) 1981-11-12 1984-03-06 Vas Corporation FM Video recording and reproducing system
JPS63185177A (ja) * 1987-01-27 1988-07-30 Sony Corp 周波数変調回路
DE3853107D1 (de) * 1987-07-21 1995-03-30 Matsushita Electric Ind Co Ltd Frequenzdemodulationsgerät.
US4908581A (en) * 1988-07-21 1990-03-13 Matsushita Electric Industrial Co., Ltd. Frequency demodulator having circuit cancelling undesired signal components

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084224A (en) * 1958-12-18 1963-04-02 Rca Corp Magnetic recording
JPS5228713B2 (nl) * 1973-07-31 1977-07-28
JPS5094828A (nl) * 1973-12-21 1975-07-28
US3893168A (en) * 1974-03-07 1975-07-01 Rca Corp Technique for minimizing interference in video recorder reproducer systems

Also Published As

Publication number Publication date
NL7701035A (nl) 1977-09-21
GB1573129A (en) 1980-08-13
FR2345039B1 (nl) 1980-04-18
JPS5923153B2 (ja) 1984-05-31
DE2712006A1 (de) 1977-09-22
FR2345039A1 (fr) 1977-10-14
DE2712006C3 (de) 1980-07-03
CA1105129A (en) 1981-07-14
US4052740A (en) 1977-10-04
DE2712006B2 (de) 1979-10-25
JPS52114219A (en) 1977-09-24
IT1077963B (it) 1985-05-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: AMPEX CORP.

Effective date: 19940331