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:
Jan. 01, 2019
Filed:
Jan. 26, 2015
Applicant:
Origin Wireless, Inc., Greenbelt, MD (US);
Inventors:
Yan Chen, ChengDu, CN;
Zhung-Han Wu, Silver Spring, MD (US);
Yi Han, Greenbelt, MD (US);
K. J. Ray Liu, Potomac, MD (US);
Assignee:
Origin Wireless, Inc., Greenbelt, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
G01S 5/0252 (2013.01);
Abstract
A time-reversal positioning system includes a storage storing first data representing channel impulse responses derived from probe signals sent from a plurality of positions and second data representing coordinates of the positions. A data processor determines a position of a terminal device based on the stored channel impulse responses and a time-reversed signal determined based on a time-reversed version of a channel impulse response that is estimated based on a channel probing signal sent from the terminal device.