ALEXANDRIA, Va., May 26 -- United States Patent no. 12,639,542, issued on May 26, was assigned to Impinj Inc. (Seattle).
"RFID ICS with privacy modes" was invented by Christopher J. Diorio (Shoreline, Wash.), Jesse Paul Cooke (Seattle) and Christopher Dean Peterson (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "RFID tag ICs may be configured with privacy modes. When a tag IC is in a privacy mode, it will not respond to commands unless a previous command includes correct verification information or specifies a recycling indicator of the tag IC. If the previous command includes correct verification information, then the tag IC will respond to one or more subsequent commands as normal, for example by r...