Impinj, Inc.

David Ord

Ali Aiouaz

Omar Khwaja

Christopher J Diorio

Paul F Dietrich

Kurt Eugene Sundstrom

Aanand Esterberg

Michael H Thomas

RFID reader systems, software and methods precompute one or more reader commands, before a tag actually responds to an earlier transmitted command. This way a system can result at a high data rate, while meeting specification requirements of responding within a preset time.

Ahead-of-time scheduling of commands in RFID reader systems

RFID readers, reader systems, and methods are provided that utilize smart antenna switching. A first signal is transmitted from a first antenna estimating presence of tags within the antennas field of view. If fewer than a predefined number of tags are estimated, the system switches to a second antenna. Otherwise, the tags found in the field of view of the first antenna are inventoried before switching to the second antenna.

RFID readers and systems with antenna switching upon detecting too few tags and methods

RFID reader systems, readers, components, software and methods are provided for inventorying RFID tags. In some embodiments, a population of RFID tags begins being inventoried using a first set of communication parameters, and then continues using a second set of communication parameters. This way, some RFID tags can be inventoried faster, without missing tags that require a longer time to read.

Adjusting communication parameters while inventorying RFID tags

Growing community of inventors

Aliso Viejo, CA, United States of America

David Ord