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.

Date of Patent:
Nov. 01, 2022

Filed:

Nov. 09, 2018
Applicant:

Multi-tech Systems, Inc., Mounds View, MN (US);

Inventors:

David Thomas Smith, Apple Valley, MN (US);

Jason Scott Reiss, Saint Michael, MN (US);

Assignee:

Multi-Tech Systems, Inc., Mounds View, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 64/00 (2009.01); G01S 5/12 (2006.01); G01S 5/14 (2006.01);
U.S. Cl.
CPC ...
H04W 64/003 (2013.01); G01S 5/12 (2013.01); G01S 5/14 (2013.01);
Abstract

One aspect is a network system including a network sewer and a plurality of gateway hosts coupled to the network server and each including a sectorized antenna and defining a plurality of gateway areas. An overlapping gateway grid includes the plurality gateway areas, each gateway area including sectors. The network system includes a plurality of endpoints, each sending and receivingcommunication signals to and from at least two gateway hosts, and each comprising an oscillator calibrated with a clocking frequency. The network server determines the location of a target endpoint by sending communication signals between two selected sectorized antennas and the target endpoint to determine one sector from each of the two selected sectorized antennas in which the target endpoint is located,and by calculating the time-of-flight for the communication signal to travel between each of the selected sectorized antennas and the target endpoint.


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