Television display system with reduced line-scan artifacts

Details Television display system with reduced line-scan artifacts Television display system with reduced line-scan artifacts

H - Electricity

04

N

350/100, 350/36

H04N 5/21 (2006.01) H04N 5/44 (2006.01) H04N 7/01 (2006.01)

Patent

CA 1219065

Abstract A flat-field television image having reduced visibility of horizontal scan lines is generated by receiving first and second fields of interlaced video and progressively generating a scanned image within a time for one incoming field. The progressively scanned image contains interstitial lines between the lines of one field, and consequently the line-scan structure is made less visible, but the flicker rate is undesirabley decreased. In order to increase the flicker rate, additional progressively scanned images are generated at a rate equal to or greater than the incoming field rate.

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