Overlaying information on a video display

Details Overlaying information on a video display Overlaying information on a video display

1984-03-21

1986-07-08

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340709, 340734, 340724, G09G 106

Patent

active

045996105

ABSTRACT:
A normal video signal and an overlay video signal are combined by supplying the normal video signal to the base of a first emitter follower transistor while the overlay video signal is supplied to the base of a second emitter follower transistor. The two transistors are biased such that the first transistor is at a slightly lower voltage than the second (overlay) transistor and is reversed biased (off) any time data is available from the overlay video signal.

REFERENCES:
patent: Re31200 (1983-04-01), Sukonick et al.
patent: 3872461 (1975-03-01), Jarosik et al.
patent: 4070710 (1978-01-01), Sukonick et al.
patent: 4136359 (1979-01-01), Wozniak
patent: 4146879 (1979-03-01), Nicholson et al.
patent: 4149148 (1979-04-01), Miller et al.
patent: 4165506 (1979-08-01), Brands et al.
patent: 4200869 (1980-04-01), Murayama et al.
patent: 4247843 (1981-01-01), Miller et al.
patent: 4258362 (1981-03-01), Brown et al.
patent: 4302755 (1981-11-01), Pisani et al.
patent: 4314357 (1982-02-01), Kimura et al.
patent: 4317114 (1982-02-01), Walker
patent: 4454593 (1984-06-01), Fleming et al.
patent: 4498079 (1985-02-01), Ghosh et al.
patent: 4527155 (1985-07-01), Yamaki et al.
patent: 4542376 (1985-09-01), Bass et al.

Affiliated with

Also associated with

Rating

Overlaying information on a video display does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overlaying information on a video display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overlaying information on a video display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1454244