CA1023840A - Aperture correction circuit for television - Google Patents

Aperture correction circuit for television

Info

Publication number
CA1023840A
CA1023840A CA210,406A CA210406A CA1023840A CA 1023840 A CA1023840 A CA 1023840A CA 210406 A CA210406 A CA 210406A CA 1023840 A CA1023840 A CA 1023840A
Authority
CA
Canada
Prior art keywords
television
correction circuit
aperture correction
aperture
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA210,406A
Other languages
English (en)
French (fr)
Inventor
Jan A.M. Hofman
Sing L. Tan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1023840A publication Critical patent/CA1023840A/en
Expired legal-status Critical Current

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)
  • Color Television Image Signal Generators (AREA)
CA210,406A 1973-10-06 1974-09-30 Aperture correction circuit for television Expired CA1023840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7313754A NL7313754A (nl) 1973-10-06 1973-10-06 Apertuurkorrektieschakeling voor televisie.

Publications (1)

Publication Number Publication Date
CA1023840A true CA1023840A (en) 1978-01-03

Family

ID=19819755

Family Applications (1)

Application Number Title Priority Date Filing Date
CA210,406A Expired CA1023840A (en) 1973-10-06 1974-09-30 Aperture correction circuit for television

Country Status (8)

Country Link
US (1) US3952327A (xx)
JP (1) JPS5340416B2 (xx)
CA (1) CA1023840A (xx)
DE (1) DE2446969B2 (xx)
FR (1) FR2247040A1 (xx)
GB (1) GB1480516A (xx)
IT (1) IT1020928B (xx)
NL (1) NL7313754A (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7511784A (nl) * 1975-03-24 1977-04-13 Philips Nv Werkwijze en inrichting voor het maken van een videoplaat.
DE2518247C3 (de) * 1975-04-24 1978-04-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren und Schaltungsanordnung zum Decodieren des Ausgangssignals einer Bildaufnahmeröhre in einer Einröhren-Farbfernsehkamera
US4176373A (en) * 1977-07-06 1979-11-27 Eastman Kodak Company Signal processing for discrete-sample-type-color-video signal
NL8100604A (nl) * 1981-02-09 1982-09-01 Philips Nv Videosignaalverwerkingsschakeling voor een kleurentelevisie-ontvanger.
US4402006A (en) * 1981-02-23 1983-08-30 Karlock James A Image enhancer apparatus
DE3226432A1 (de) * 1981-10-14 1984-01-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur versteilerung der flanken eines videosignals
GB8608811D0 (en) * 1986-04-11 1986-05-14 Avesco Plc Video comb filter digital decoder
US4962419A (en) * 1989-02-13 1990-10-09 Eastman Kodak Company Detail processing method and apparatus providing uniform processing of horizontal and vertical detail components
CN101998031B (zh) * 2009-08-21 2012-06-27 凌阳科技股份有限公司 在缩放器中去除视频信号的振铃噪声的滤波系统及方法
CN108779707B (zh) 2016-03-04 2020-11-24 三菱重工发动机和增压器株式会社 涡轮增压器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030440A (en) * 1958-11-12 1962-04-17 Rca Corp Vertical aperture correction
NL6604020A (xx) * 1966-03-26 1967-09-27

Also Published As

Publication number Publication date
DE2446969C3 (xx) 1979-12-20
IT1020928B (it) 1977-12-30
FR2247040A1 (xx) 1975-05-02
DE2446969B2 (de) 1979-05-03
GB1480516A (en) 1977-07-20
JPS5067025A (xx) 1975-06-05
NL7313754A (nl) 1975-04-08
US3952327A (en) 1976-04-20
JPS5340416B2 (xx) 1978-10-27
AU7398274A (en) 1976-04-08
DE2446969A1 (de) 1975-04-17

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