Casino game medium and game table system

Patent metadata

Field	Value
Publication number	US-11756372-B2
Application number	US-202117303572-A
Country	US
Kind code	B2
Filing date	Jun 2, 2021
Priority date	Jun 4, 2020
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

Provided is a casino game medium and a game table system capable of reducing adjacent reading without limiting a design of a game table. The casino game medium 100 includes the medium side antenna 110 , the resistance element 111 connected to the medium side antenna 110 , and the IC chip 112 that stores medium information and outputs the medium information based upon an induced electromotive force generated in the medium side antenna 110 . The medium side antenna 110 is designed so that the resonance frequency thereof is higher than the specified frequency band.

First claim

What is claimed is:

1. A game table system including a game table that reads medium information stored in an RFID tag casino game medium, wherein
the RFID tag casino game medium includes:
a medium side antenna,
a resistance element connected to the medium side antenna, and
an IC chip that stores the medium information and outputs the medium information based upon an induced electromotive force generated in the medium side antenna, and

the game table is provided with a reader and writer that outputs an oscillation signal of a frequency in a specified frequency band below each of a plurality of chip arrangement areas where the casino game medium is disposed, and
wherein the resistance element and the IC chip are electrically connected to one another and between the medium side antenna,
wherein a resistance value of the resistance element is set to a value at which each IC chip of the predetermined number of RFID tag casino game media stacked on one reader and writer at the game table is not driven by a magnetic field based upon an oscillation signal outputted by a reader and writer adjacent to the one reader and writer.

2. The game table system according to claim 1 , wherein
the medium side antenna is designed so that a resonance frequency thereof is higher than the specified frequency band.

3. A method of fabricating an RFID tag casino game media for use in a game table that reads information stored in the RFID tag casino game medium,
wherein, the RFID tag casino game medium includes:
a medium side antenna;
a resistance element; and
an IC chip that stores medium information and outputs the medium information based upon an induced electromotive force generated in the medium side antenna, and the resistance element and the IC chip are electrically connected to one another and between the medium side antenna; and

wherein, the game table includes an RFID tag casino game medium reader and writer that outputs an oscillation signal of a frequency in a specified frequency band disposed below each of a plurality of chip arrangement areas, the method comprising:
selecting a thickness of the RFID tag casino game medium to be read by the reader and writer;
selecting a desired number of the RFID tag casino game media to be stacked upon one another and within a first chip arrangement area to be read by a first RFID tag casino game medium reader and writer disposed below the first chip arrangement area;
determining whether the desired number of the RFID tag casino game media game media stacked above the first chip arrangement area can be read by oscillating the first RFID tag casino game medium reader and writer at the specified frequency band;
where the desired number of the RFID tag casino game media game media stacked above the first chip arrangement area are successfully read, adjusting the medium side antenna to exhibit a resonance frequency higher than the specified frequency band; and,
adjusting the resistance element such that the desired number of the RFID tag casino game media game media stacked above the first chip arrangement area are successfully read by the first RFID tag casino game medium reader and writer, but not successfully read by a second RFID tag casino game medium reader and writer associated with a second chip arrangement area that is adjacent the first chip arrangement area.

4. The method of claim 3 , wherein the resonance frequency of the medium side antenna is higher than 13.56 MHz.

5. The method of claim 3 , wherein the medium side antenna is connected in series to the resistance element.

6. The method of claim 3 , wherein the medium side antenna is in the form of a spiral pattern forming a coil and the resistance element is disposed outside of an area defined by the spiral pattern.

7. The method of claim 3 , wherein the step of adjusting the resistance element comprises increasing the resistance value of the resistance element.

Assignees

• Universal Entertainment Corp

Inventors

• Imura Hideaki

Classifications

• A63F1/04 Primary

  Card games combined with other games · CPC title

• G07F17/322 Primary

  Casino tables, e.g. tables having integrated screens, chip detection means · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• G06K19/07773

  Antenna details (antennas for wireless devices, e.g. RFID tags, in general H01Q1/22) · CPC title

• G07F17/3248

  involving non-monetary media of fixed value, e.g. casino chips of fixed value · CPC title