US Patent Issued to Impinj on June 3 for "RFID tag clock frequency reduction during tuning" (Washington, Oregon Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,798, issued on June 3, was assigned to Impinj Inc. (Seattle).

"RFID tag clock frequency reduction during tuning" was invented by John D. Hyde (Corvallis, Ore.), Shailendra Srinivas (Seattle), Jay Kuhn (Seattle), Ronald A Oliver (Seattle), Harley Heinrich (Snohomish, Wash.), Theron Stanford (Seattle) and Christopher J. Diorio (Shoreline, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An RFID IC may operate at a relatively low clock frequency while impedance matching to an antenna is being tuned to increase the amount of power that the IC can extract from an incident RF wave. A tuning circuit tunes the impedance matching by adjusting a variable i...