US 12,387,067 B2
De-tuned multiple RFID antenna arrangement for gaming
Tyler J. Seitz, Portland, OR (US); Forrest S. Seitz, Beaverton, OR (US); and Joshua K. Hoyt, Portland, OR (US)
Assigned to Fortiss, LLC, Los Angeles, CA (US)
Filed by FORTISS, LLC, Los Angeles, CA (US)
Filed on Jun. 28, 2024, as Appl. No. 18/758,552.
Application 18/758,552 is a continuation of application No. 18/181,330, filed on Mar. 9, 2023, granted, now 12,056,564.
Application 18/181,330 is a continuation of application No. 17/587,293, filed on Jan. 28, 2022, granted, now 11,630,964, issued on Apr. 18, 2023.
Claims priority of provisional application 63/283,086, filed on Nov. 24, 2021.
Prior Publication US 2024/0362435 A1, Oct. 31, 2024
Int. Cl. G07F 17/32 (2006.01); G06K 7/10 (2006.01)
CPC G06K 7/10366 (2013.01) [G06K 7/10316 (2013.01); G07F 17/322 (2013.01); G07F 17/3248 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for determining locations of objects in a gaming environment, the system comprising:
a plurality of radio-frequency identification (RFID) antennas arranged at a plurality of locations on a gaming table;
a network analyzer system;
an RFID reader;
a switchable reactance network that selectively connects the plurality of RFID antennas with one of the network analyzer system and the RFID reader using a selectable reactance, wherein the switchable reactance network includes a plurality of switches and a shunt element, wherein the shunt element is located inboard of at least two of the plurality of switches; and
a controller,
wherein the controller controls the network analyzer system to measure a reflection coefficient of a selected antenna of the plurality of RFID antennas, and
wherein based on the reflection coefficient having been measured, the controller controls the RFID reader to energize the selected antenna, wherein in response to energizing the selected antenna, the RFID reader receives at least one RFID tag identifier from at least one RFID tag near the selected antenna.