Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1975-08-20
1977-02-22
Martin, John C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 902
Patent
active
040094863
ABSTRACT:
Method and apparatus for the conversion to and from digital form of a PAL color television signal is described in which the digital signals represent the error between a particular sampled value of the signal and a predicted value for that particular sample, the predicted value being based on a previously occurring sampled value together with the difference between two similarly spaced sampled values occurring in the preceding line, the spacing of the two pairs of sampled values in the two lines being such that the phase change of the sub-carrier, if unmodulated, is the same in both cases. A simple switch delay system is described for effecting the selection of the sampling instants in the preceding line.
REFERENCES:
patent: 3800225 (1974-03-01), Meares
patent: 3921204 (1975-11-01), Thompson
Martin John C.
The Post Office
LandOfFree
Digital encoding 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 encoding system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital encoding system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-327022