Method and apparatus for keying TV signals

Details Method and apparatus for keying TV signals Method and apparatus for keying TV signals

1989-09-14

1990-08-21

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358160, 340723, H04N 5272, H04N 514, H04N 974

Patent

active

049511459

ABSTRACT:
A method and apparatus for keying TV signals. A keying signal, K, is employed to create first and second modified keying signals, K(A) and K(B), which commence at independent points in time. The modified signals are compared and, as a result, a revised keying signal, R, is produced commencing at the leading edge of one modified keying signal and terminating at the trailing edge of the other. The operator selects R according to one of the two rules (i), (ii), the selection being by trial and error:

REFERENCES:
patent: 4356512 (1982-10-01), Robers
patent: 4589013 (1986-05-01), Vlahos et al.
patent: 4694344 (1987-09-01), Flora
patent: 4758892 (1988-07-01), Bloomfield
patent: 4774507 (1988-09-01), Kashigi et al.
patent: 4873568 (1989-10-01), Jackson et al.

Affiliated with

Also associated with

Rating

Method and apparatus for keying TV signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for keying TV signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for keying TV signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1682912