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. 17, 2001
Filed:
Mar. 26, 1998
Charles Chambers, Cambridge, GB;
ICO Services Ltd., London, GB;
Abstract
In a satellite position fixing system, where an earth station,communicates with a satellite 10 which, in turn, communicates with selectable ones out of a plurality of user terminals,whose position, on the surface of the earth,, is measured, the accuracy of measurement of the position of the satellite,is improved by using all of the user terminals,as further triangulation points, the improved position being incorporated in further user terminal,position determinations, and so on to create a cumulative improvement. Weighting is applied so that user terminals,with large errors in triangulation are given small significance and those with small errors are given great significance.