Horizontal blanking

Details Horizontal blanking Horizontal blanking

1992-11-24

1994-07-12

Groody, James J.

Television

Synchronization

Automatic phase or frequency control

348500, H04N 324, H04N 504

Patent

active

053293673

ABSTRACT:
In a horizontal deflection system, an nf.sub.H timing signal is generated synchronously with an f.sub.H horizontal synchronizing component in a video signal, where nf.sub.H is a higher frequency than f.sub.H. A first circuit is responsive to the nf.sub.H timing signal for generating an nf.sub.H scan synchronizing signal synchronously with the nfH timing signal. A horizontal deflection stage is operable at nf.sub.H and responsive to the nf.sub.H scan synchronizing signal. A second circuit is responsive to the same nf.sub.H timing signal for generating horizontal blanking pulses. The nf.sub.H timing signal can be generated by a first phase locked loop and a frequency divider. The first circuit responsive to the nf.sub.H timing signal can comprise a second phase locked loop. The second circuit responsive to the nfH timing signal can comprise a driver/inverter. The horizontal blanking pulses are combined with vertical blanking pulses to form a composite blanking signal.

Affiliated with

Also associated with

Rating

Horizontal blanking does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-400733