GB2067045B - Vertical aperture correction of a video signal - Google Patents

Vertical aperture correction of a video signal

Info

Publication number
GB2067045B
GB2067045B GB8040227A GB8040227A GB2067045B GB 2067045 B GB2067045 B GB 2067045B GB 8040227 A GB8040227 A GB 8040227A GB 8040227 A GB8040227 A GB 8040227A GB 2067045 B GB2067045 B GB 2067045B
Authority
GB
United Kingdom
Prior art keywords
video signal
vertical aperture
aperture correction
correction
vertical
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
GB8040227A
Other versions
GB2067045A (en
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.)
Sony Corp
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 GB2067045A publication Critical patent/GB2067045A/en
Application granted granted Critical
Publication of GB2067045B publication Critical patent/GB2067045B/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
GB8040227A 1979-12-20 1980-12-16 Vertical aperture correction of a video signal Expired GB2067045B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16622179A JPS5689173A (en) 1979-12-20 1979-12-20 Vertical aperture correcting circuit

Publications (2)

Publication Number Publication Date
GB2067045A GB2067045A (en) 1981-07-15
GB2067045B true GB2067045B (en) 1984-02-01

Family

ID=15827350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8040227A Expired GB2067045B (en) 1979-12-20 1980-12-16 Vertical aperture correction of a video signal

Country Status (7)

Country Link
JP (1) JPS5689173A (en)
AT (1) AT379924B (en)
CA (1) CA1147848A (en)
DE (1) DE3048544A1 (en)
FR (1) FR2473240B1 (en)
GB (1) GB2067045B (en)
NL (1) NL8006811A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140761C2 (en) * 1981-10-14 1983-08-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit for steepening the edges of a video signal, especially for a video recorder
US4628867A (en) * 1983-02-16 1986-12-16 Brougham Peter H Water supply to watering troughs
JPS60114090A (en) * 1983-11-26 1985-06-20 Toshiba Corp Vertical contour correction device
GB2151429B (en) * 1983-11-26 1987-03-18 Toshiba Kk Vertical contour correction device
DE3418794A1 (en) * 1984-05-19 1985-11-21 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth METHOD FOR TRANSMITTING NARROW TAPE
KR890004853B1 (en) * 1985-01-28 1989-11-29 미쓰비시전기 주식회사 Circuits for processing video signals
JPS62239670A (en) * 1986-04-11 1987-10-20 Ikegami Tsushinki Co Ltd Contour emphasizing device
JPH01220975A (en) * 1988-02-29 1989-09-04 Toshiba Corp Picture quality adjustment circuit
JPH02142282A (en) * 1988-11-24 1990-05-31 Hitachi Denshi Ltd Video signal processor
KR920008629B1 (en) * 1990-09-27 1992-10-02 삼성전자 주식회사 Compensation circuit stressing image
JPH04309075A (en) * 1991-04-05 1992-10-30 Sanyo Electric Co Ltd Luminance signal processing circuit
US5287174A (en) * 1991-04-05 1994-02-15 Sanyo Electric Co., Ltd. Vertical resolution correcting circuit for video signal
JP2756070B2 (en) * 1992-04-09 1998-05-25 三菱電機エンジニアリング株式会社 Waveform shaping method, waveform shaping device, and contour correction device for carrier color signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517381B1 (en) * 1970-10-14 1976-03-06
NL158987B (en) * 1972-06-10 1978-12-15 Philips Nv APERTURE CORRECTOR FOR A TELEVISION IMAGE SIGNAL, AS WELL AS A TELEVISION RECORDING DEVICE, FITTED THIS.
JPS5628071B2 (en) * 1973-12-03 1981-06-29
JPS53132214A (en) * 1977-04-25 1978-11-17 Sony Corp Vertical aperture correction circuit

Also Published As

Publication number Publication date
FR2473240A1 (en) 1981-07-10
AT379924B (en) 1986-03-10
NL8006811A (en) 1981-07-16
DE3048544A1 (en) 1981-09-17
DE3048544C2 (en) 1989-01-05
GB2067045A (en) 1981-07-15
FR2473240B1 (en) 1985-10-11
ATA618180A (en) 1985-07-15
JPS5689173A (en) 1981-07-20
CA1147848A (en) 1983-06-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee