Patent ID: 8425312
Filing Date: 2013-04-23
Classification: A63F,G07F

Abstract:
1. A method for determining a three-dimensional location of a playing card at a distance from a gaming table, the method comprising the steps of: providing a deck of playing cards, wherein each playing card in the deck of playing cards comprises: transmitting modulated radio-frequency-energizing signals from a transceiver to a table antenna, wherein the modulated radio-frequency-energizing signals are radio-frequency-energizing signals selected from the group consisting of: radio-frequency-energizing signals having a plurality of transmission frequencies; and radio-frequency-energizing signals having a plurality of transmission power levels; forming a plurality of detection zones at a plurality of distances above the gaming table by transmitting from the table antenna the modulated radio-frequency-energizing signals, each detection zone of said plurality of detection zones corresponding to a unique transmission range associated with each of the transmission frequencies in the plurality of transmission frequencies, or associated with each of the transmission power levels in the plurality of transmission power levels; providing a system computer wherein the system computer comprises a processor, a monitor screen, and a non-transitory storage medium readable by the processor, the non-transitory storage medium storing instructions, the instructions when executed on the system computer cause the system computer to perform steps comprising: