Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1988-06-06
1989-08-22
Psitos, Aristotelis M.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358328, 358 19, H04N 979, H04N 945
Patent
active
048601209
ABSTRACT:
A first PLL circuit receives a color burst signal of a carrier chrominance signal and outputs a first continuous wave signal which is identical in frequency and phase to the color burst signal. The first continuous wave signal is frequency converted by a first frequency divider and a second PLL circuit into a second continuous wave signal having a frequency of the sum of or difference between frequencies of the carrier chrominance signal and a derived low-frequency conversion chrominance signal. A multiplier multiplies the carrier chrominance signal by the second continuous wave signal. An output signal from the multiplier is supplied to an extraction circuit to obtain the low-frequency conversion chrominance signal.
REFERENCES:
patent: 3704341 (1972-11-01), Fujita
patent: 3730983 (1973-05-01), Numakura et al.
patent: 3821788 (1974-06-01), Kobayashi
patent: 3968514 (1976-07-01), Narahara et al.
patent: 4405937 (1983-09-01), Kudo et al.
patent: 4503455 (1985-03-01), Oshora
patent: 4709256 (1987-11-01), Lechner et al.
Monthly Magazine "Television Technics", published by Denshigijutsu Shuppansha, Jun. 1984, pp. 57-61.
"New Chrominance Signal Processing LSI for Home VCR", IEEE Transactions on Consumer Electronics, vol. CE-26, Aug. 1980, pp. 315-321.
"Advanced and Simplified Signal Processing System for VTR and its high performance LSI's", IEEE Transactions on Consumer Electronics, vol. CE-24, No. 3, Aug. 1987, pp. 458-467.
"Video Cassette Recorder Development for Consumers", IEEE Transactions on Consumer Electronics, vol. CE-24, No. 3, Aug. 1987, pp. 468-472.
Mitsubishi Denki & Kabushiki Kaisha
Psitos Aristotelis M.
Swayze, Jr. W. Daniel
LandOfFree
Low-frequency converter for carrier chrominance signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low-frequency converter for carrier chrominance signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-frequency converter for carrier chrominance signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2420056