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:
Jul. 01, 1980
Filed:
Jan. 15, 1979
Applicant:
Inventor:
Robert J Wohlers, Orchard Park, NY (US);
Assignee:
Calspan Corporation, Buffalo, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343-76 ; 343 / ;
Abstract
A modulating signal which is selectively changed as a function of time is applied to the modulating diodes of a retrodirective array. The diodes modulate the signal reflected from the array. A decoder coacting with the illuminating radar can extract information from the time-frequency code superimposed on the return signal to thereby identify the target.