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:
Apr. 30, 2013
Filed:
Dec. 24, 2008
Applicants:
James R. Wright, Morgantown, PA (US);
James William Woodburn, Ardmore, PA (US);
Inventors:
James R. Wright, Morgantown, PA (US);
James William Woodburn, Ardmore, PA (US);
Assignee:
Analytical Graphics Inc., Exton, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/00 (2006.01); G06F 3/01 (2006.01); G06F 3/03 (2006.01); G06F 3/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
An extended Kalman filter (EKF) is combined with a fixed epoch smoother (FES) to produce a new variable lag smoother (VLS). The fixed epoch lags EKF measurement time-tags with variable time lag. The combination of EKF and FES is referred to herein as a variable lag smoother (VLS).