Scrambling method for television

Details Scrambling method for television Scrambling method for television

H - Electricity

04

N

350/26

H04N 7/167 (2006.01) H04N 7/16 (2006.01) H04N 7/171 (2006.01)

Patent

CA 1242794

ABSTRACT OF THE DISCLOSURE A scrambling method for TV pictures avoids picture deterioration by level compressing only selected horizontal flyback portions of the video signal to effect scrambling. A key signal is superposed on selected horizontal synch signals and, when removed at the decoder, enables level expansion of those horizontal flyback portions compressed in order to allow the TV receiver to effect synchronization. Data signals for enabling or disabling reception of particular programming such as paid programs may be superposed on other selected horizontal synch signals.

431580

Affiliated with

Also associated with

Rating

Scrambling method for television does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scrambling method for television, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scrambling method for television will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1207418