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:
May. 12, 2020
Filed:
Apr. 08, 2019
Applicant:
Etherwhere Corporation, Sunnyvale, CA (US);
Inventors:
Farrokh Farrokhi, San Ramon, CA (US);
Dickson Wong, Burlingame, CA (US);
Assignee:
ETHERWHERE CORPORATION, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/07 (2010.01); G01S 19/21 (2010.01); G01S 5/10 (2006.01);
U.S. Cl.
CPC ...
G01S 19/07 (2013.01); G01S 5/10 (2013.01); G01S 19/21 (2013.01);
Abstract
A positioning system is provided in which a client device samples a transmission from any suitable terrestrial wireless source. The resulting samples are correlated with replica samples to determine a position of the client device using time-difference-of-arrival-based calculations.