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System, apparatus and method for sequencing objects having RFID tags on a moving conveyor

  • US 10,346,656 B2
  • Filed: 12/17/2015
  • Issued: 07/09/2019
  • Est. Priority Date: 12/31/2014
  • Status: Active Grant
First Claim
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1. A radio frequency identification (RFID) based tracking system comprising:

  • a conveyor system configured to move and transport a plurality of objects along a conveyance path, wherein each of the plurality of objects includes a near field only RFID tag associated therewith and identifying the object, wherein each near field only RFID tag is not coupled to a far field antenna such that it is not readable in a far field of RFID communication and communicates only in a near field of RFID communication;

    a first RFID tag reader positioned relative to a first portion of the conveyor system and configured to attempt to read the near field only RFID tag of each of the plurality of objects; and

    a control circuit configured to process reads of the plurality of near field only RFID tags by the first RFID reader to determine an order of the plurality of objects being conveyed.

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