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:
Jun. 01, 2010
Filed:
Oct. 24, 2006
Daniel Aljadeff, Kiriat Ono, IL;
Reuven Amsalem, Nes-ziona, IL;
Amir Lavi, Rehovot, IL;
AeroScout, Inc., Rehovot, IL;
Abstract
A method for reducing synchronization offset errors in a TDOA location finding wireless system, comprising: receiving transmissions from at least one sync unit at multiple location transceivers, wherein the multiple location transceivers are synchronized from the sync unit; determining actual times-of-arrival of the received transmissions in response to receiving transmissions; performing a wireless distance measurement between the transceivers and the at least one sync unit, the wireless distance measurement performed by the transceivers in response to the received transmissions from the at least one sync unit; computing an actual propagation time between the sync unit to the transceivers; computing differences between the actual propagation time and theoretical propagation time determined in conformity with the predetermined locations; estimating synchronization offset error of the transceivers in conformity with the computed differences; and correcting the synchronization offset error.