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:
Jun. 21, 2016

Filed:

Dec. 18, 2014
Applicant:

Checkpoint Systems, Inc., Thorofare, NJ (US);

Inventors:

Richard Hoehn, Nashville, TN (US);

Zachary Cody Hazelwood, Nashville, TN (US);

Merril F. Bradshaw, Waxhaw, NC (US);

Brian R. Dobeck, Monroe, NC (US);

Assignee:

CHECKPOINT SYSTEMS, INC., Thorofare, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/18 (2006.01); G08B 13/24 (2006.01);
U.S. Cl.
CPC ...
G08B 13/2462 (2013.01);
Abstract

A tag controller is configured to interface with a security tag adapted to be disposed on a corresponding product in a monitoring environment. The tag controller includes processing circuitry configured to perform a tag position estimation by receiving information indicative of signal strength measured at the security tag relative to each of a plurality of locating beacons disposed in the monitoring environment, defining an order of a selected number of the locating beacons based on signal strength, determining a first midpoint between two of the selected number of the locating beacons having the lowest signal strengths, determining at least a second midpoint between the first midpoint and a locating beacon having a next lowest signal strength, and determining a location of the security tag at least in part based on the second midpoint.


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