Research/Patents/US 5389790
US 5389790

TECHNIQUE FOR DETECTING AND IDENTIFYING CERTAIN OBJECTS

Assignee

SRI INTERNATIONAL, MENLO PARK, CA A CORP. OF CA

Filed

Feb 15, 1991

Granted

Feb 14, 1995

Location

SAN MATEO CA US

Abstract

There is disclosed herein a technique for detecting and/or identifying a particular object from which electromagnetic radiation is emitted or reflected at an intensity which fluctuates in accordance with a frequency pattern unique to that object. In accordance with the technique, the fluctuating electromagnetic radiation is detected by suitable equipment which can operate across an optical bandwidth extending from the ultraviolet (200 nm) to the infrared (14 micrometers) spectrum. The detected electromagnetic radiation is converted to an electrical signal having the same unique frequency pattern as the electromagnetic radiation itself. This electrical signal, its frequency pattern serving as an identifying signature of the object in question, is used to detect, track, and/or identify the object.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 13, 1991

Rescinded

Mar 7, 1994

Duration

2 years, 5 months

Inventor

  • 1RICHARD C. HONEY

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records