The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1994
Filed:
Jul. 17, 1991
Applicant:
Inventor:
Carl N Guerreri, Manassas, VA (US);
Assignee:
Electronic Warfare Associates, Inc., Herndon, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
359169 ; 342 45 ;
Abstract
Systems are provided for distinguishing between friendly ground targets and those of a foe and for receiving passive communications from friendly ground targets by providing friendly ground targets with reflector means adapted to modulate or otherwise change the character of laser light striking the reflector surface. The target is illuminated with a laser beam and the reflected laser energy is examined to determine whether it differs in character from that normally reflected from a target. Modulation of the laser beam can be accomplished by changing the reflectivity of the reflector means according to a selected sequence or pattern.