Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-01-14
1992-10-06
Peng, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 93, 340511, 340514, 340588, 382 1, 169 61, H04N 718
Patent
active
051537222
ABSTRACT:
A fire detection system includes a color video camera, a frame grabber and a computer processor operative to store and examine a series of image frames of the viewed area. Ultraviolet and infrared detectors produce event signals when energy received exceeds predetermined thresholds. The processor then rapidly evaluates the images from the camera to determine bright area objects, their location, edge profile, edge flicker, stationarity and spectral characteristics as well as spectral flicker to confirm a fire event. Finally, the size of a confirmed fire image is measured as a final criterion for the release of fire suppressant material, either in a limited zone within which the fire is located or within the entire facility.
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Drda Benedict
Goedeke A. Donald
Gross H. Gerald
Viglione Sam
Donmar Ltd.
Ekstrand Roy A.
Peng John K.
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