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:
Feb. 16, 2009
Filed:
May. 11, 2000
Daniel David Harrison, Delanson, NY (US);
Anatha Krishnan Pradeep, Berkeley, CA (US);
Glen William Brooksby, Glenville, NY (US);
Stephen M. Hladik, Albany, NY (US);
Daniel David Harrison, Delanson, NY (US);
Anatha Krishnan Pradeep, Berkeley, CA (US);
Glen William Brooksby, Glenville, NY (US);
Stephen M. Hladik, Albany, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Location of an object to be tracked is determined by measuring, at a receiver situated at the object, the propagation time differences between the signals from a plurality of GPS satellites, each of which is received by the receiver situated at the object. The measured propagation time difference values are transmitted to a central station where the location of the object to be tracked is calculated based upon the propagation time differences of the signals transmitted from the satellites and data derived from a receiver apart from the object but also receiving signals from the satellites.