Vertical motion detector

Details Vertical motion detector Vertical motion detector

1989-06-16

1990-10-16

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358108, H04N 718

Patent

active

049639617

ABSTRACT:
A vertical motion detector for a TV system motion detector. The circuit operates by delaying each motion indicator signal by multiple units of the time required for one full horizontal line sweep. If vertical motion occurs, the delayed indicator will output from the delay at the same time another indicator occurs. These signals are fed to multiple AND gates so that several coincident signals are required to produce an alarm. A switching circuit permits selection of the number of vertical motion indicators required for an alarm.

REFERENCES:
patent: 3988533 (1976-10-01), Mick et al.
patent: 4148062 (1979-04-01), Kamin
patent: 4408224 (1983-10-01), Yoshida
patent: 4597010 (1986-06-01), Carr
patent: 4661846 (1987-04-01), Kondo
patent: 4703358 (1987-10-01), Flannaghan
patent: 4731648 (1988-03-01), Bernard
patent: 4766490 (1988-08-01), Haghiri
patent: 4772945 (1988-09-01), Tagawa
patent: 4783833 (1988-11-01), Kawabata

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