Accession Number : ADD002249
Title : Body Exposure Indicator.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Cohen,Allen ; Caligiuri,Hugo J
Report Date : 02 Dec 1975
Pagination or Media Count : 6
Abstract : The patent relates to a device whereby an infra-red detector is caused to scan a field of view periodically to detect warm bodied intruders or other personnel. Signals from the detector are compared with signals from a scene recorder containing a prerecorded picture of the same field of view made when no one was in the area. Any difference signal indicating a change in the field of view, such as might be caused by an enemy intruder in a combat area or by an overexposed trainee in a training exercise, actuates an alarm. A monitor display exhibits the scene viewed by the infra-red detector and an alarm recorder automatically records the scene when the alarm is actuated.
Descriptors : *Antiintrusion devices, *Personnel detection, *Patents, Infrared detectors, Signal processing, Display systems, Warning systems
Subject Categories : Infrared Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE