Synchronizing signal automatic selecting circuit

Details Synchronizing signal automatic selecting circuit Synchronizing signal automatic selecting circuit

1988-07-25

1990-01-16

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358148, H04N 508

Patent

active

048947199

ABSTRACT:
A synchronizing signal automatic selecting circuit comprising a signal inverter for inverting synchronizing signal from a synchronizing signal separating circuit, a synchronizing signal detector for detecting synchronizing signal when a synchronizing signal is inputted to a horizontal and horizontal/vertical synchronizing signal input terminal and grounding the output signal of the signal inverter, a polarity detecting circuit for detecting the synchronizing signal polarity of the horizontal and horizontal/vertical synchronizing signal input terminal and a vertical synchronizing signal separator for separating the vertical synchronizing signal from the output signal of a transistor. The circuit is designed to automatically select with priority the synchronizing signal where the composite video signal and the synchronizing signal are inputted at the same time to a monitor used for a peripheral equipment of a computer without using a switch.

REFERENCES:
patent: 4709267 (1987-11-01), Sendelweck

Affiliated with

Also associated with

Rating

Synchronizing signal automatic selecting circuit 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 signal automatic selecting circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronizing signal automatic selecting circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1338504