A passive infrared radiation (PIR) detection system permits data developed by the PIR detection system to be interpreted, to in essence "look into" a protected area and to positively determine the character of any images detected in the protected area. The system includes an array of PIR detectors for...http://www.google.fr/patents/US5101194?utm_source=gb-gplus-shareBrevet US5101194 - Pattern-recognizing passive infrared radiation detection system
Pattern-recognizing passive infrared radiation detection system
