ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,067, issued on Aug. 12, was assigned to Fortiss LLC (Los Angeles).
"De-tuned multiple RFID antenna arrangement for gaming" was invented by Tyler J. Seitz (Portland, Ore.), Forrest S. Seitz (Beaverton, Ore.) and Joshua K. Hoyt (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gaming table contains a number of antennas that are de-tuned from the resonant frequency of a single RFID tag. This increases the power required to read the single tag but matches the resonant frequency for reading a stack of RFID tags. The gaming table may further include a network analyzer and a set of capacitors that are dynamically switched among the antennas ...