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:
May. 12, 1992
Filed:
Sep. 10, 1990
Applicant:
Inventor:
Hans A Heynau, North Palm Beach, FL (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
2502032 ; 2502086 ;
Abstract
A heterodyne photodetector array, whereby a source beam 32 is reflected off of an object 34 forming a return beam 36 is directed onto an array 48. The array has a centered photodetector cell 52 (FIG. 2) which is surrounded by a plurality of outer photodetector cells 50. The outer cells provide one or more signals for angular tracking of the object, while the center cell provides a signal which may be employed in vibration sensing or other signature measurement applications.