Patent ID: 9473712
Filing Date: 2016-10-18
CPC Classification: G01S,H04N

Claim Text:
1. A system for preventing friendly fire using infrared (IR) object recognition, comprising: an IR projector for projecting a beam of IR radiation at a first wavelength onto the object; an IR detector having a field of view of the object for detecting IR fluorescence from the object, a wavelength of the fluorescence having a second wavelength that is a function of the first wavelength; a processor executing an algorithm to perform the steps of: controlling the IR projector to generate IR at the first wavelength and project the IR onto the object; controlling the IR detector to detect the object fluorescence; and identifying the object as friendly when the object fluorescence is detected; and an inhibitor for preventing firing of a gun or missile when the object is identified as friendly, and a memory storing an IR wavelength list of inhibitory wavelengths; wherein the inhibitor is activated when the IR detector detects IR with an inhibitory wavelength.