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:
Mar. 03, 2009
Filed:
Jun. 30, 2003
Ralph Thomas Hoctor, Saratoga Springs, NY (US);
John Erik Hershey, Ballston Lake, NY (US);
Nick Andrew Van Stralen, Ballston Lake, NY (US);
Harold Woodruff Tomlinson, Jr., Scotia, NY (US);
Ralph Thomas Hoctor, Saratoga Springs, NY (US);
John Erik Hershey, Ballston Lake, NY (US);
Nick Andrew Van Stralen, Ballston Lake, NY (US);
Harold Woodruff Tomlinson, Jr., Scotia, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A system and method involve determining the location of objects within an area of interest using wireless signals. The system includes at least three base stations communicating with a central processor and a plurality of mobile devices. Further, at least one fixed beacon transmitter of known location may be provided. The mobile devices transmit a wireless signal to the base stations, which then determine a location of the mobile devices based on time difference of arrival information between the mobile devices measured at all the base stations.