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:
Oct. 04, 1994
Filed:
Mar. 26, 1993
Applicant:
Inventors:
Roger M Langdon, Colchester, GB;
William R McKnight, Skelmorlie, GB;
Assignee:
Gec-Marconi Limited, Stanmore, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ; G01B / ;
U.S. Cl.
CPC ...
356 285 ; 73657 ; 356349 ;
Abstract
A receiver-transmitter for a target identification system having a particular but not necessarily an exclusive application for the identification of aircraft which utilizes laser vibrometry and a coherent array receiver including an array of photodetectors adapted to receive signals from different parts of the target and to use a corresponding array of frequency-offset reference beams to provide coherent detection of each of the received signals.