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. 20, 2008
Filed:
May. 27, 2004
Applicants:
Michael R. Daily, Albuquerque, NM (US);
Steven B. Rohde, Corrales, NM (US);
James L. Novak, Albuquerque, NM (US);
Inventors:
Michael R. Daily, Albuquerque, NM (US);
Steven B. Rohde, Corrales, NM (US);
James L. Novak, Albuquerque, NM (US);
Assignee:
Sandia Corporation, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/26 (2006.01); H04B 7/185 (2006.01);
U.S. Cl.
CPC ...
Abstract
A geophysics-based method for determining the position of a stationary earth object uses the periodic changes in the gravity vector of the earth caused by the sun- and moon-orbits. Because the local gravity field is highly irregular over a global scale, a model of local tidal accelerations can be compared to actual accelerometer measurements to determine the latitude and longitude of the stationary object.