WO2001045394A8 - Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display - Google Patents

Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display

Info

Publication number
WO2001045394A8
WO2001045394A8 PCT/US2000/033655 US0033655W WO0145394A8 WO 2001045394 A8 WO2001045394 A8 WO 2001045394A8 US 0033655 W US0033655 W US 0033655W WO 0145394 A8 WO0145394 A8 WO 0145394A8
Authority
WO
WIPO (PCT)
Prior art keywords
video display
artifact
reducing
scanned video
visual effects
Prior art date
Application number
PCT/US2000/033655
Other languages
French (fr)
Other versions
WO2001045394A1 (en
Inventor
Ronald Thomas Keen
Original Assignee
Thomson Licensing Sa
Ronald Thomas Keen
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 Thomson Licensing Sa, Ronald Thomas Keen filed Critical Thomson Licensing Sa
Priority to EP00988044A priority Critical patent/EP1238534A1/en
Priority to AU24297/01A priority patent/AU2429701A/en
Priority to MXPA02005973A priority patent/MXPA02005973A/en
Priority to JP2001546155A priority patent/JP2003517789A/en
Publication of WO2001045394A1 publication Critical patent/WO2001045394A1/en
Publication of WO2001045394A8 publication Critical patent/WO2001045394A8/en

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
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Abstract

On a line scanned video display, the frequency of an artifact producing signal within the video passband is selected to be an odd harmonic of one half the horizontal line scan frequency so that adjacent scan lines of the artifact are 180 degrees out of phase with each other. Thus, the artifact is rendered largely visually canceled when viewed due to the integrating characteristics of the eye of the viewer, even though the artifact is still there.
PCT/US2000/033655 1999-12-16 2000-12-12 Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display WO2001045394A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00988044A EP1238534A1 (en) 1999-12-16 2000-12-12 Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display
AU24297/01A AU2429701A (en) 1999-12-16 2000-12-12 Apparatus and method for reducing artifacts present in a line scanned video display
MXPA02005973A MXPA02005973A (en) 1999-12-16 2000-12-12 Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display.
JP2001546155A JP2003517789A (en) 1999-12-16 2000-12-12 Apparatus and method for reducing visual effects of artifacts in line-scanned video displays

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/465,038 1999-12-16
US09/465,038 US7106385B1 (en) 1999-12-16 1999-12-16 Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display

Publications (2)

Publication Number Publication Date
WO2001045394A1 WO2001045394A1 (en) 2001-06-21
WO2001045394A8 true WO2001045394A8 (en) 2001-11-01

Family

ID=23846264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/033655 WO2001045394A1 (en) 1999-12-16 2000-12-12 Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display

Country Status (8)

Country Link
US (1) US7106385B1 (en)
EP (1) EP1238534A1 (en)
JP (1) JP2003517789A (en)
KR (1) KR100695308B1 (en)
CN (1) CN1268118C (en)
AU (1) AU2429701A (en)
MX (1) MXPA02005973A (en)
WO (1) WO2001045394A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070012047A (en) * 2005-07-22 2007-01-25 삼성전자주식회사 Digital video processing apparatus and control method thereof
US10645337B1 (en) * 2019-04-30 2020-05-05 Analong Devices International Unlimited Company Video line inversion for reducing impact of periodic interference signals on analog video transmission
US11736815B2 (en) 2020-12-15 2023-08-22 Analog Devices International Unlimited Company Interferer removal for reducing impact of periodic interference signals on analog video transmission

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Also Published As

Publication number Publication date
KR20020062333A (en) 2002-07-25
KR100695308B1 (en) 2007-03-15
US7106385B1 (en) 2006-09-12
JP2003517789A (en) 2003-05-27
CN1268118C (en) 2006-08-02
EP1238534A1 (en) 2002-09-11
AU2429701A (en) 2001-06-25
MXPA02005973A (en) 2002-10-23
CN1409920A (en) 2003-04-09
WO2001045394A1 (en) 2001-06-21

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