Video signal analyzer

Details Video signal analyzer Video signal analyzer

1981-12-07

1983-08-30

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, 358280, 358282, H04N 514

Patent

active

044020139

ABSTRACT:
Apparatus is provided which is responsive to a video signal for producing a position-modulated pulse train which is representative of the occurrence of transitions of the video signal. A transversal filter is responsive to the video signal and produces a differentiated replica of the video signal over a given band of frequencies. The output of the transversal filter contains transitional information of the video signal occupying a range of frequencies which is to be analyzed. Information representing transitions of positive, negative, or both polarities is then compared to a given threshold value. Signal transitions exceeding the threshold are converted to pulses, thereby producing a train of pulses representing significant transitions of a desired polarity or polarities. The times of occurrence of the pulses are then analyzed to generate a control signal for controlling a given characteristic of the video signal during processing.

REFERENCES:
patent: 3984865 (1976-10-01), Avins
patent: 4130835 (1978-12-01), Guildford
patent: 4303895 (1981-12-01), Ohnishi et al.
patent: 4316100 (1982-02-01), Sakaue et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-908686