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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.:

US 10444321 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Dec. 31, 2014

Method and system to estimate the location of a mobile device using time difference of arrival in an asynchronous wireless network

Applicant:

Red Point Positioning Corporation, Brookline, MA (US);

Inventors:

Rui Pu, Brookline, MA (US);

Georgiy Pekhteryev, Kharkov, UA;

Jonathan Horne, Boulder, CO (US);

Assignee:

Red Point Positioning Corporation, Boston, MA (US);

Attorneys:

Foley & Lardner LLP

Christopher J. McKenna

Primary Examiner:

Vladimir Magloire

Assistant Examiner:

Donald H Braswell

Int. Cl.
CPC ...
G01S 5/06 (2006.01); H04W 4/02 (2018.01); H04W 64/00 (2009.01); G01S 13/87 (2006.01);
U.S. Cl.
CPC ...
G01S 5/06 (2013.01); G01S 13/878 (2013.01); H04W 4/023 (2013.01); H04W 64/003 (2013.01);
Abstract

A system for locating a mobile device is disclosed. In one embodiment, the system includes a mobile device having a processor and a receiver, and at least three transceiver devices forming a network of transceiver devices. The mobile device and transceivers can transmit a request (REQ) packet by the mobile device; receive the REQ packet by the at least three transceiver devices; transmit, by a first one of the at least three transceiver devices receiving the REQ packet, a response (RSP) packet; and receive by at least some of the at least three transceiver devices the REQ and the RSP packet. The at least three transceiver devices that receive both the REQ and the RSP packet, the system determines a difference in arrival time between receiving the REQ packet and the RSP packet. The system can determine the location of the mobile device based on determined differences in arrival time.

Find Patent Forward Citations

Pu, Rui. (2019). Method and system to estimate the location of a mobile device using time difference of arrival in an asynchronous wireless network (U.S. Patent No. 10444321). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10444321

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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