Television – Format conversion
Patent
1992-12-23
1994-08-16
Groody, James J.
Television
Format conversion
348448, H04N 701, H04N 1120
Patent
active
053391098
ABSTRACT:
An apparatus for interpolating scanning lines of a TV signal in a TV, comprising a scanning line interpolator for discriminating vertical, horizontal and diagonal edge patterns of a received video signal of the TV signal and extracting a signal for interpolation from the video signal using vertical, 45.degree. end 135.degree. diagonal average values, a first time compressor for compressing the time of the interpolation signal from the scanning line interpolator, a second time compressor for compressing the time of the video signal, and a switch for selectively and in turn outputting output signals from the first and second time compressors. The scanning line interpolator includes a one line memory for delaying the received video signal by one line, first to fourth horizontal comparison circuits, a diagonal/vertical sum signal output circuit for outputting first and second diagonal sum signals and a vertical sum signal, and an interpolation signal output circuit for selecting one of the first and second diagonal sum signals and the vertical sum signal from the diagonal/vertical sum signal output circuit in response to control signals from first and second control signal generating circuits, the selected signal having the smallest difference, averaging the selected signal and outputting the averaged signal as the interpolation signal.
REFERENCES:
patent: 4785351 (1988-11-01), Ishikawa
patent: 4967271 (1990-10-01), Campbell et al.
patent: 5093721 (1992-03-01), Rabii
patent: 5157490 (1992-10-01), Kawai et al.
Goldstar Co. Ltd.
Groody James J.
Lee Michael H.
LandOfFree
Apparatus for interpolating scanning lines of TV signal in TV does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for interpolating scanning lines of TV signal in TV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for interpolating scanning lines of TV signal in TV will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-955959