Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1985-05-29
1987-06-09
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 11, H04N 1120, H04N 701
Patent
active
046724451
ABSTRACT:
A frame comb filter separates a luminance signal from a composite video input signal for display on every other line of a progressively scanned display. The filter includes a tap for providing a field delayed luma signal and an interpolator for providing a frame comb filtered and interpolated luma signal. A selector switch selects the field delayed luma signal for display on the intermediate lines of the display when the vertical detail content of the input signal is greater than a minimum threshold value and there is little or no interframe motion and selects the frame comb filtered and interpolated luminance signal for display otherwise thereby providing enhanced vertical detail and reduced field motion artifacts for displayed images.
REFERENCES:
patent: 4400719 (1983-08-01), Powers
patent: 4415931 (1983-11-01), Dischert
patent: 4426661 (1984-01-01), Okada et al.
patent: 4498099 (1985-02-01), Pritchard
patent: 4558347 (1985-12-01), Pritchard et al.
patent: 4598309 (1986-07-01), Casey
"High Quality Television by Signal Processing" by Broder Wendland, Nov. 1983.
BBC Research Report 1983/8 "The Improved Display of 625-line Television Pictures" A. Roberts pub. Jul. 1983.
Casey Robert F.
Weckenbrock Hermann J.
Bauer Robert Michael
Coalter R. G.
Emanuel P. M.
Groody James J.
Rasmussen P. J.
LandOfFree
Progressive scan processor employing interpolation in luminance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Progressive scan processor employing interpolation in luminance , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Progressive scan processor employing interpolation in luminance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1832657