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:
Dec. 10, 2002
Filed:
Jun. 18, 1999
Applicant:
Inventors:
Charles H. Wells, Redwood City, CA (US);
Eugene Pertsov, San Jose, CA (US);
Assignee:
Impact Systems, Inc., Los Gatos, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/66 ;
U.S. Cl.
CPC ...
G06F 7/66 ;
Abstract
A Kalman filter algorithm is used for estimation in a feedback control system for a moving web. Matrices of the Kalman filter algorithm are solved with reduced computational complexity. One of the matrices is solved as a diagonal matrix for both state prediction and covariance and another matrix for gain is solved merely as a vector.