RFID tag location using synthesized-beam RFID readers

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United States of America Patent

PATENT NO 9916484
SERIAL NO

15588119

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Abstract

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Synthesized-beam RFID readers may be used to locate RFID tags. In one embodiment, a tag's response rates on different beams can be used, along with the target locations of those beams, to estimate the tag's location. The estimated tag location is within a region where beams with nonzero tag response rates overlap, and the distances of the estimated tag location from any two different beam target locations may correspond to a ratio of tag response rates on the two different beams. In another embodiment, a tag's response rates on different beam pairs configured to cooperatively power RFID tags can be used, along with the target locations of those beam pairs, to estimate the tag's location.

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Patent Owner(s)

Patent OwnerAddress
IMPINJ INC400 FAIRVIEW AVENUE N SUITE 1200 SEATTLE WA 98109

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Diorio, Christopher J Shoreline, US 270 5595
Pesavento, Alberto Seattle, US 63 1224

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