Separation circuit for imposing detection timings of a synchrono

Details Separation circuit for imposing detection timings of a synchrono Separation circuit for imposing detection timings of a synchrono

1990-05-25

1991-07-23

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358155, H04N 508

Patent

active

050348159

ABSTRACT:
A horizontal synchronous signal separation circuit is applied to video apparatus such as a video tape recorder, television receiver, and projector. The separation circuit includes a signal separating portion for detecting the trailing edge of a horizontal synchronous signal and obtaining a separation signal whose timing is referenced to the trailing edge, a window pulse generating portion for obtaining a window pulse whose timing is referenced to the leading edge of the synchronous signal, and a gate for subjecting the separation signal generated by the signal separating portion to a masking process by the window pulse. The gate which causes the separation signal to be subjected to a masking process, may directly output the window pulse as the separation signal if the separation signal is not present within the window. The separated synchronous signal finally obtained has a timing reference related to the trailing edge of the original horizontal signal, and the synchronous signal can be separated reliably and the synchronizing system of a video apparatus can be made stable.

REFERENCES:
patent: 3527887 (1970-09-01), Clapp et al.
patent: 3819859 (1974-06-01), Borsuk et al.
patent: 3845240 (1974-10-01), Alaily
patent: 4621288 (1986-11-01), Yamada et al.
patent: 4701796 (1987-10-01), Kamiya
patent: 4769704 (1988-09-01), Hirai et al.
patent: 4792852 (1988-12-01), Narusawa

Affiliated with

Also associated with

Rating

Separation circuit for imposing detection timings of a synchrono does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation circuit for imposing detection timings of a synchrono, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation circuit for imposing detection timings of a synchrono will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-436699