US Patent Issued to Impinj on Feb. 3 for "Identifying RFID tag IC manufacturer using backscatter link frequency" (Washington Inventor)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,541,661, issued on Feb. 3, was assigned to Impinj Inc (Seattle).

"Identifying RFID tag IC manufacturer using backscatter link frequency" was invented by Rene Dominic Martinez (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "An RFID tag IC manufacturer may be identified using a backscatter link frequency. An RFID reader may transmit a command, such as a Query-type command, and include an analog parameter specifying a first reply frequency and a digital parameter specifying a second reply frequency different from the first reply frequency. A receiving the command, RFID tag IC may respond using either the first reply frequency or the second frequency...