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. 01, 2016
Filed:
Jan. 30, 2007
Applicant:
Robert W. Boyd, Eidson, TN (US);
Inventor:
Robert W. Boyd, Eidson, TN (US);
Assignee:
ZIH CORP., Lincolnshire, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/00 (2009.01); G01S 5/02 (2010.01); G01S 5/06 (2006.01); H04W 64/00 (2009.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
G01S 5/0215 (2013.01); G01S 5/021 (2013.01); G01S 5/0221 (2013.01); G01S 5/06 (2013.01); H04W 64/00 (2013.01); H04W 84/12 (2013.01);
Abstract
A system and method locates a wireless local area network (WLAN) signal source. A wireless LAN signal as an RF signal is propagated from a WLAN signal source at a fixed, known location to a plurality of receivers having unsynchronized clocks. The time-of-arrival is measured at each receiver and the timing relationship from the fixed, known location of the signal source is used to relate time-of-arrival measurements from a signal arriving from an unknown location.