Synchronizing circuit for an image pickup system

Details Synchronizing circuit for an image pickup system Synchronizing circuit for an image pickup system

1991-04-29

1992-09-01

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358154, 358158, 377 54, H04N 508, H04N 510

Patent

active

051444321

ABSTRACT:
The horizontal synchronous signal and the vertical synchronous signal included in a composite synchronous signal which is output from one TV camera are separated from the composite synchronous signal. A plurality of TV cameras are controlled on the basis of the horizontal synchronous signal and the vertical synchronous signal so as to produce synchronized video signals from the plurality of TV cameras. These synchronized video signals are easy to compound. In the blanking period of the vertical synchronous signal, the rise period of the synchronous signal is 1/2 of the period of the vertical synchronous signal. Pulses are eliminated alternately in the blanking period by a half killer circuit including a counter and a decoder and having a simple structure, thereby generating a horizontal synchronous signal appropriate for driving the TV cameras. The counter composed of Johnson counters connected in multiple stages reduces the amount of current flowing to the counter, thereby eliminating the deleterious influence on the TV cameras.

REFERENCES:
patent: 4245251 (1981-01-01), Steckler et al.
patent: 4420775 (1983-12-01), Yamazaki et al.
patent: 4476490 (1984-10-01), Kaneko
patent: 4792852 (1988-12-01), Narusawa
patent: 5034815 (1991-07-01), Shibayama

Affiliated with

Also associated with

Rating

Synchronizing circuit for an image pickup system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synchronizing circuit for an image pickup system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronizing circuit for an image pickup system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-772329