US 11,880,736 B2
Systems and methods for identifying a radio frequency identification tag
James Peternel, Edmonds, WA (US); and Shashidhar Ramamurthy, Seattle, WA (US)
Assigned to Intermec IP Corporation, Charlotte, NC (US)
Filed by Intermec IP Corporation, Fort Mill, SC (US)
Filed on May 20, 2021, as Appl. No. 17/325,915.
Claims priority of provisional application 63/030,386, filed on May 27, 2020.
Prior Publication US 2021/0374364 A1, Dec. 2, 2021
Int. Cl. G06K 7/10 (2006.01); G06K 19/07 (2006.01)
CPC G06K 7/10099 (2013.01) [G06K 7/10356 (2013.01); G06K 19/0724 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising at least one processor and at least one memory having computer-coded instructions stored thereon that, in execution via the at least one processor, configure the apparatus to:
initiate an interrogation command associated with a RFID tag;
cause activation of a plurality of antennas at a plurality of transmit power levels over a plurality of frequency channels;
identify a count of tag reads associated with each antenna of the plurality of antennas associated with the RFID tag, wherein said identify the count of tag reads comprises identifying a sub-count of tag reads associated with each antenna of the plurality of antennas at the plurality of transmit power levels and a plurality of frequency channels, wherein the sub-count of tag reads represents count of tag reads at each frequency of the plurality of frequency channels and each particular transmit power level of the plurality of transmit power levels;
generate a plurality of confidence scores comprising a confidence score for each antenna based at least in part on the count of tag reads associated with each antenna; and
determine a tag location associated with the RFID tag based at least in part on the plurality of confidence scores, wherein the tag location associated with the RFID tag is identified by at least determining at least one antenna of the plurality of antennas with highest confidence score.