Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-09-27
1991-01-15
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 19, 358 11, H04N 946
Patent
active
049857576
ABSTRACT:
A signal separator performs an inter-line operation on a composite color video signal, thereby separating it into a luminance signal and a chrominance signal. A scan converter converts each of the luminance signal and the chrominance signal into a sequential scan signal on the basis of the double-speed changing of the luminance signal and the chrominance signal. A signal determination circuit determines whether the composite color video signal is a standard signal or a non-standard signal. A first clock producer produces first clocks to be phase-locked to a color subcarrier in accordance with the composite color digital video signal. A second clock producer produces second clocks to be phase-locked to horizontal synchronizing signals in accordance with the composite color digital video signal. A first controller causes the signal separator and the scan converter to operate in accordance with the first clocks when the signal determination circuit determines that the signal is a standard signal. A second controller causes the signal separator to operate in accordance with the first clocks, causes the scan converter to operate in accordance with the second clocks, and converts a sampling rate of each of the luminance signal and the chrominance signal separated by the signal separator in accordance with the first clock into a rate of the second clocks when the signal determination circuit determines that the signal is a non-standard signal.
REFERENCES:
patent: 4593315 (1986-06-01), Willis et al.
patent: 4612568 (1986-09-01), den Hollander et al.
patent: 4680632 (1987-07-01), Willis et al.
K. Kawai et al.; "IDTV Receiver", IEEE trans, CE vol. CE-33 No. 3 Aug. 1987.
T. Kurita et al., "Non-standard Signal Processing" National Convention Record of the Institute of Television Engineers of Japan pp. 309-310 Jul. 1987.
Yamada Masahiro
Yasuki Seijiro
Groody James J.
Harvey David E.
Kabushiki Kaisha Toshiba
LandOfFree
Digital video signal processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital video signal processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital video signal processing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-58818