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:
Nov. 02, 1976
Filed:
Dec. 13, 1974
Ray O Waddoups, Valencia, CA (US);
International Telephone and Telegraph Corporation, New York, NY (US);
Abstract
A retro-reflecting laser responser for applications such as IFF and other secure data link applications. A remote (airborne for example) responser, either manually directed or with automatic search and tracking functions, orients its relatively narrow aperture toward the source (a ground laser beacon, for example) of coded interrogation laser beam signals. The remote equipment includes a telescope, preferably of the Cassegrainian type, two-coordinate tracking features, means for recognizing the received beacon coding and for enabling the telescope to reflect the ground transmission. An electro-optic modulation is provided so that the reflected laser energy may be modulated to provide a communication data link back to the source of the laser pulse transmissions.