Video key edge generator for increasing the size of an associate

Details Video key edge generator for increasing the size of an associate Video key edge generator for increasing the size of an associate

1981-05-04

1983-07-05

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 522

Patent

active

043921566

ABSTRACT:
Conventional border, drop shadow and/or matte outline generating signals are selectively gated through an offset amplifier of less than unity gain and then fed back into the existing delay lines, to selectively modify the horizontal and vertical trailing edge of the waveform generated by the loop, which, in turn, modifies accordingly the selectively switched composite video signal, i.e., provides for selectively increasing the size and/or varying the configuration of the luminance key signals.

REFERENCES:
patent: 3941925 (1976-03-01), Busch
patent: 3943280 (1976-03-01), Kimura
patent: 4141041 (1979-02-01), Peters
patent: 4199788 (1980-04-01), Tsujimura
Ampex--Series 4000 Production Switcher, Ampex Catalog No. 1809376-01, Nov. 1979.

Affiliated with

Also associated with

Rating

Video key edge generator for increasing the size of an associate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video key edge generator for increasing the size of an associate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video key edge generator for increasing the size of an associate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1442847