Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1979-05-14
1981-03-17
Murray, Richard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
3581911, H04N 522
Patent
active
042570662
ABSTRACT:
A television system having two independently tuneable, simultaneously operating, channels contains a switching means for simultaneously displaying video from the two channels on a cathode ray tube for permitting comparison therebetween and independent comparative tuning thereof. In one embodiment, video from one of the channels is displayed in the top half of the screen and video from the second channel is displayed in the bottom half of the screen. Synchronizing signals from only one of the channels is used throughout the display in order to avoid disruption in synchronization due to switching back and forth between channels. In another embodiment of the invention, video from one of the sources is displayed in the first half of each horizontal line and video from the second source is displayed in the second half of each horizontal line. Thus, side-by-side comparison can be made of displayed video from the two sources.
REFERENCES:
patent: 4070695 (1978-01-01), Scholz et al.
patent: 4139860 (1979-02-01), Micic et al.
patent: 4157572 (1979-06-01), Kennedy et al.
Kaneko Yoshiro
Sato Masaru
Eslinger Lewis H.
Murray Richard
Sinderbrand Alvin
Sony Corporation
LandOfFree
Channel selecting apparatus for use with signal receiver and sig does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Channel selecting apparatus for use with signal receiver and sig, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Channel selecting apparatus for use with signal receiver and sig will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1648453