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, 2012
Filed:
Jan. 24, 2012
Russell Alan Fretenburg, North Vancouver, CA;
Henry Hon-you Leung, Coquitlam, CA;
Derek John Pyner, Delta, CA;
Bradley David Farnsworth, Alexandria, VA (US);
David W. A. Taylor, Jr., Greensboro, NC (US);
Russell Alan Fretenburg, North Vancouver, CA;
Henry Hon-You Leung, Coquitlam, CA;
Derek John Pyner, Delta, CA;
Bradley David Farnsworth, Alexandria, VA (US);
David W. A. Taylor, Jr., Greensboro, NC (US);
ENSCO, Inc., Falls Church, VA (US);
Abstract
Methods for estimating a distance between an originator and a transponder, methods for calculating a fine time adjustment in a radio, computer-readable storage media containing instructions to configure a processor to perform such methods, originators used in a system for estimating a distance to a transponder, and transponders used in a system for estimating a distance to an originator. The methods utilize fine time adjustments to achieve sub-clock cycle time resolution. The methods may utilize offset master clocks. The methods may utilize a round-trip full-duplex configuration or a round-trip half-duplex configuration. The method produces accurate estimates of the distance between two radios.