Surveillance system

Details Surveillance system Surveillance system

1987-05-11

1988-09-20

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, H04N 718

Patent

active

047729457

ABSTRACT:
A surveillance system having self-test functions having an image pick-up sensor, an image processing unit connected to the image pick-up sensor for detecting a scene change of video signals obtained from the image pick-up sensor, an alarm generator connected to the image processing unit for generating alarm signals based on the detection of the scene change, and a self-tester including noise signals to be superimposed on the video signals to be supplied to the image processing unit as a quasi-scene change information.

REFERENCES:
patent: 4257063 (1981-03-01), Loughry et al.
patent: 4337481 (1982-06-01), Mick et al.
patent: 4511886 (1985-04-01), Rodriguez
patent: 4630110 (1986-12-01), Cotton et al.
patent: 4673974 (1987-06-01), Ito et al.
patent: 4679077 (1987-07-01), Yuasa et al.

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