NL7416225A - Openingscorrectieschakeling. - Google Patents

Openingscorrectieschakeling.

Info

Publication number
NL7416225A
NL7416225A NL7416225A NL7416225A NL7416225A NL 7416225 A NL7416225 A NL 7416225A NL 7416225 A NL7416225 A NL 7416225A NL 7416225 A NL7416225 A NL 7416225A NL 7416225 A NL7416225 A NL 7416225A
Authority
NL
Netherlands
Prior art keywords
correction circuit
opening correction
opening
circuit
correction
Prior art date
Application number
NL7416225A
Other languages
English (en)
Dutch (nl)
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of NL7416225A publication Critical patent/NL7416225A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
NL7416225A 1973-12-17 1974-12-12 Openingscorrectieschakeling. NL7416225A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14164473A JPS5539948B2 (fr) 1973-12-17 1973-12-17

Publications (1)

Publication Number Publication Date
NL7416225A true NL7416225A (nl) 1975-06-19

Family

ID=15296827

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7416225A NL7416225A (nl) 1973-12-17 1974-12-12 Openingscorrectieschakeling.

Country Status (8)

Country Link
US (1) US3980813A (fr)
JP (1) JPS5539948B2 (fr)
CA (1) CA1026457A (fr)
DE (1) DE2459681C3 (fr)
FR (1) FR2254921B1 (fr)
GB (1) GB1482790A (fr)
IT (1) IT1027759B (fr)
NL (1) NL7416225A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131120A (fr) * 1974-09-10 1976-03-17 Japan Broadcasting Corp
US4091379A (en) * 1976-05-03 1978-05-23 Litton Business Systems, Inc. Analog to digital wave shaping system
JPH0143510B2 (fr) * 1978-09-28 1989-09-21 Eastman Kodak Co
DE2906649C2 (de) * 1979-02-21 1981-02-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur Verbesserung der Bildschärfe in einem Fernsehempfänger
US4463381A (en) * 1980-04-16 1984-07-31 Eastman Kodak Company Image processing apparatus including a partitioned low pass channel
US4446484A (en) * 1981-04-16 1984-05-01 Eastman Kodak Company Image gradient detectors operating in a partitioned low-pass channel
DE3521991A1 (de) * 1985-06-20 1987-01-02 Thomson Brandt Gmbh Schaltung zur verbesserung der wiedergabe-bildschaerfe in einem videorecorder
US4758891A (en) * 1986-10-20 1988-07-19 North American Philips Consumer Electronics Corp. Method and apparatus for improving the rise and fall time of a video signal
USRE34176E (en) * 1986-10-20 1993-02-09 North American Philips Corporation Method and apparatus for improving the rise and fall time of a video signal
JPH01297980A (ja) * 1988-05-26 1989-12-01 Matsushita Electric Ind Co Ltd 輪郭改善回路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377425A (en) * 1964-08-31 1968-04-09 Sarkes Tarzian Aperture correction circuit
US3641268A (en) * 1969-07-24 1972-02-08 Us Navy Real-time image contrast and edge sharpness enhancing apparatus
JPS472014U (fr) * 1971-01-26 1972-08-23
JPS5140739Y2 (fr) * 1971-07-30 1976-10-05

Also Published As

Publication number Publication date
GB1482790A (en) 1977-08-17
DE2459681B2 (de) 1980-06-04
JPS5093043A (fr) 1975-07-24
DE2459681A1 (de) 1975-06-26
FR2254921B1 (fr) 1978-06-23
CA1026457A (fr) 1978-02-14
IT1027759B (it) 1978-12-20
DE2459681C3 (de) 1981-02-19
JPS5539948B2 (fr) 1980-10-15
US3980813A (en) 1976-09-14
FR2254921A1 (fr) 1975-07-11

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed