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:
Nov. 20, 2018
Filed:
Jun. 08, 2012
Kerry L. Greer, Melbourne Beach, FL (US);
Kerry L. Greer, Melbourne Beach, FL (US);
Other;
Abstract
A method and system for increased position tracking resolution in a localized environment for use in GPS-denied areas such as within buildings or enclosed structures, comprising: multiple reference nodes each transmitting a synchronization pulse to a multitude of body-worn or device-mounted receiving units; a high speed clock circuit in each receiver capable of measuring the Time Difference of Arrival of said sync pulses to the resolution needed for precise positioning; a central processing computer used to calculate actual position of the receiving units relative to some fixed reference point; and a display system to monitor the position of the receiving units in real time as they move around within the target area overlaid onto available GIS data or building CAD drawings.