Poker chips and methods of reading the same
OwnerRoger Green Stewartinventor
Life of this patent
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Abstract
A method for reading poker chips according to one embodiment includes sending out an interrogation signal; receiving responses from poker chips in response to the interrogation signal, each of the poker chips comprising a circuit and an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna; and determining a value of the poker chips from which responses are received. A poker chip according to another embodiment includes a circuit on or within a substrate; and an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna. Additional systems and methods are disclosed.
Claims50
A method for reading poker chips, the method comprising:
- sending out an interrogation signal;
- receiving responses from poker chips in response to the interrogation signal, each of the poker chips comprising a circuit and an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna;
- and
- determining a value of the poker chips from which responses are received.
A method for reading poker chips, the method comprising:
- sending out an interrogation signal;
- receiving responses from the poker chips;
- and
- determining a value of the poker chips from which responses are received, wherein each of the poker chips comprises:
- a circuit;
- and
- an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna,
- wherein the antenna has a sheet resistivity of at least about 1 Ω/sq,
- wherein at least 50% of the RF energy striking the antenna passes through the antenna.
A poker chip, comprising:
- a circuit;
- and
- an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna,
- wherein the antenna has a sheet resistivity of at least about 1 Ω/sq,
- wherein at least 50% of the RF energy striking the antenna passes through the antenna.
A method for reading poker chips, the method comprising:
- using a reader positioned near an exit of a casino to detect a poker chip exiting the casino,
- wherein the poker chip comprises:
- a circuit;
- and
- an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna.
A method for reading poker chips, the method comprising:
- using a reader positioned near an exit of a casino to detect a poker chip exiting the casino,
- wherein the poker chip comprises:
- a circuit;
- and
- an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna,
- wherein the antenna has a sheet resistivity of at least about 1 Ω/sq,
- wherein at least 50% of the RF energy striking the antenna passes through the antenna.
A poker chip, comprising:
- a circuit on or within a substrate;
- and
- an antenna coupled to the circuit, wherein the antenna minimally affects electromagnetic RF fields surrounding the antenna even in the vicinity of the antenna.
Dependencies are inferred from the claim text.