Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1981-06-16
1983-06-21
Richardson, Robert L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358320, 358326, 360 361, H04N 946, H04N 576
Patent
active
043896634
ABSTRACT:
Apparatus is provided for indicating the phase of the color subcarrier signal present during each line of a color television signal so as to identify whether that line is odd or even. A phase detector detects the phase of the color subcarrier signal at a predetermined time following the occurrence of the horizontal synchronizing signal. The actual time at which the phase of the color subcarrier signal is detected is adjusted by an automatic phase adjustment circuit which senses relative phase shifts between the horizontal synchronizing signal and the color subcarrier signal. Preferably, the phase detector is a sampling circuit which samples the color subcarrier signal at a sampling time which is adjustable by the automatic phase adjustment circuit so as to cancel relative phase shifts between the sampling time and the color subcarrier signal.
REFERENCES:
patent: 3990103 (1976-11-01), Stalley et al.
patent: 4024571 (1977-05-01), Dischert et al.
patent: 4261008 (1981-04-01), Waller et al.
patent: 4313129 (1982-01-01), Fukui
Eslinger Lewis H.
Richardson Robert L.
Sinderbrand Alvin
Sony Corporation
LandOfFree
Apparatus for indicating the phase of the color subcarrier signa 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 indicating the phase of the color subcarrier signa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for indicating the phase of the color subcarrier signa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2112890