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:
Jan. 23, 1990
Filed:
Jan. 26, 1989
Applicant:
Inventors:
James M Ball, Huntington Beach, CA (US);
Issac Richman, Newport Beach, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05H / ; G01B / ;
U.S. Cl.
CPC ...
250251 ; 250397 ; 2504911 ; 356150 ; 356152 ; 356153 ;
Abstract
An active boresight drift measurement and calibration apparatus utilizing a predetermined number of interferometer units to measure the distances between themselves, the target tracking unit and the beam direction sensing unit. The interferometer units provide the initial alignment reference and by periodic repeat measurements provides distance change data to establish boresight alignment drift correction angles.