CN-113750512-B - Game medium for casino and game table system
Abstract
The invention provides a game medium for a casino and a game table system capable of reducing adjacent reading without limiting the design of a game table. A game medium (100) for a casino comprises a medium-side antenna (110), a resistor element (111) connected to the medium-side antenna (110), and an IC chip (112) which stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna (110). The dielectric-side antenna (110) is designed such that the resonant frequency is higher than a prescribed frequency band.
Inventors
- IMURA HIDEAKI
Assignees
- 环球娱乐株式会社
- 环球娱乐株式会社
Dates
- Publication Date
- 20260421
- Application Date
- 20210604
- Priority Date
- 20200604
Claims (10)
- 1. A game medium for a casino, a plurality of arrangement areas for arranging the game medium for the casino, and a plurality of readers for outputting oscillation signals of frequencies included in a prescribed frequency and corresponding to the plurality of arrangement areas, characterized in that the game medium for the casino comprises: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The resistance value of the resistance element is set to reduce the Q value without affecting the resonance frequency of the medium-side antenna reduced by the stacking of the game media for a casino, and to reduce the sensitivity of the medium-side antenna.
- 2. A game medium for a casino, a plurality of arrangement areas for arranging the game medium for the casino, and a plurality of readers for outputting oscillation signals of frequencies included in a prescribed frequency and corresponding to the plurality of arrangement areas, characterized in that the game medium for the casino comprises: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The dielectric-side antenna, the resistive element, and the integrated circuit chip are disposed on a printed circuit board, the resistive element is disposed apart from the integrated circuit chip on the printed circuit board outside a region of a spiral pattern of a coil as the dielectric-side antenna, The resistance value of the resistor element is set so that the integrated circuit chip of the game medium for a casino stacked in one of the arrangement regions is not driven by a magnetic field generated by an oscillation signal outputted from the reader/writer corresponding to an arrangement region adjacent to the one arrangement region.
- 3. A game medium for a casino, a plurality of arrangement areas for arranging the game medium for the casino, and a plurality of readers for outputting oscillation signals of frequencies included in a prescribed frequency and corresponding to the plurality of arrangement areas, characterized in that the game medium for the casino comprises: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The resistance value of the resistive element is variable, The resistance value of the resistor element is set so that the integrated circuit chip of the game medium for a casino stacked in one of the arrangement regions is not driven by a magnetic field generated by an oscillation signal outputted from the reader/writer corresponding to an arrangement region adjacent to the one arrangement region.
- 4. A game medium for a casino according to any one of the claims 1 to 3, characterized in that, The dielectric-side antenna is designed such that the resonant frequency is higher than a prescribed frequency band.
- 5. A casino gaming medium as claimed in any one of claims 1 to 3, wherein the integrated circuit chip stores the medium information including individual information, owners and circulation history of the medium.
- 6. A game table system having a game table for reading medium information contained in a game medium for a casino, characterized in that, The game medium for a casino has: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The game table is provided with a reader/writer below each of a plurality of arrangement areas in which the game medium for a casino is arranged, the reader/writer outputting an oscillation signal of a frequency included in a prescribed frequency band, The resistance value of the resistance element is set to reduce the Q value without affecting the resonance frequency of the medium-side antenna reduced by the stacking of the game media for a casino, and to reduce the sensitivity of the medium-side antenna.
- 7. A game table system having a game table for reading medium information contained in a game medium for a casino, characterized in that, The game medium for a casino has: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The game table is provided with a reader/writer below each of a plurality of arrangement areas in which the game medium for a casino is arranged, the reader/writer outputting an oscillation signal of a frequency included in a prescribed frequency band, The dielectric-side antenna, the resistive element, and the integrated circuit chip are disposed on a printed circuit board, the resistive element is disposed apart from the integrated circuit chip on the printed circuit board outside a region of a spiral pattern of a coil as the dielectric-side antenna, The resistance value of the resistor element is set to a value at which each integrated circuit chip of a predetermined number of game media for a casino stacked on a reader/writer in the game table is not driven by a magnetic field based on an oscillation signal output from the reader/writer adjacent to the reader/writer.
- 8. A game table system having a game table for reading medium information contained in a game medium for a casino, characterized in that, The game medium for a casino has: a dielectric side antenna; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna, The game table is provided with a reader/writer below each of a plurality of arrangement areas in which the game medium for a casino is arranged, the reader/writer outputting an oscillation signal of a frequency included in a prescribed frequency band, The resistance value of the resistive element is variable, The resistance value of the resistor element is set to a value at which each integrated circuit chip of a predetermined number of game media for a casino stacked on a reader/writer in the game table is not driven by a magnetic field based on an oscillation signal output from the reader/writer adjacent to the reader/writer.
- 9. The gaming table system of any of claims 6-8, wherein the gaming table system is configured to provide a plurality of game pieces, The dielectric-side antenna is designed such that the resonant frequency is higher than a prescribed frequency band.
- 10. A game table system for reading medium information contained in a game medium for a casino, characterized in that, The game medium for a casino has: a dielectric-side antenna designed to have a resonant frequency higher than a prescribed frequency band; a resistor element connected to the dielectric-side antenna, and An integrated circuit chip storing the medium information including individual information, an owner, and a circulation history of the game medium for a casino, outputting the medium information based on an induced electromotive force generated in the medium-side antenna, The resistance value of the resistance element of the game medium for a casino is set to a value at which each integrated circuit chip of a predetermined number of game mediums stacked on a reader/writer in the game table is not driven by a magnetic field based on an oscillation signal output from a reader/writer adjacent to the reader/writer, The game table has: A reader/writer for outputting an oscillation signal having a frequency included in the predetermined frequency band below each of a plurality of game medium arrangement areas in which the game medium for a casino is arranged, and And a display that displays a total value of game media read by the reader/writer provided in each of the plurality of game media placement areas for each of the game media placement areas in correspondence with each of the game media placement areas.
Description
Game medium for casino and game table system Technical Field Japanese patent No.2020-097951, application date 2020, 6/4. The present invention relates to a game medium for a casino and a game table system. Background Conventionally, in a casino, in a table game, a game medium such as a medal, a badge (play) or the like is used as an open game. In recent years, a technology is known in which an RFID storing information of such a game medium is incorporated in such a game medium. Such a game medium for a casino has an IC storing game medium information such as game value and a medium-side antenna having a coil and a capacitor inside a substrate molded in a flat plate by a resin insert. Such a game medium for a casino generates an induced electromotive force from a magnetic field generated by a reader/writer provided on a game table, and transmits medium information to the reader/writer by the electric power. For example, the frequency band of the electric wave for RFID is specified as a short wave band (13.56 MHz) or the like, and the medium side antenna is designed such that the resonance frequency is a frequency of the short wave band, thereby obtaining stability of communication. However, such a casino game medium is generally stacked on a game table provided with a reader/writer by an organizer playing a table game, a participant playing a table game, or the like. Therefore, such a reader/writer needs to accurately read medium information of a plurality of stacked casino game media, respectively. However, when reading is performed in a state where the game media for a casino are stacked, there is a case where a phenomenon in which the respective resonance frequencies are lowered due to mutual inductance between the plurality of media side antennas occurs, and communication with the reader/writer becomes difficult. Then, for example, in reference 1, the medium side antenna is configured to include a main routing pattern provided along a closed curve and a plurality of sub routing patterns each having a smaller diameter than that of the main routing pattern. Thus, the possibility of the respective medium side antennas of the stacked casino game media interfering with each other electromagnetically is reduced, so that communication between the casino game media and the reader/writer is enabled even in the case where a plurality of casino game media are stacked. Prior art literature Patent literature Patent document 1 U.S. patent application publication No. 2015/01111042 specification Disclosure of Invention Technical problem to be solved by the invention However, it is known that the magnetic field generated by a reader/writer expands according to the distance from the reader/writer. Therefore, when game media for casinos are stacked and arranged, it is necessary to enlarge the intervals between readers and writers to prevent communication with other readers (so-called adjacent reading), and there is a problem that the design of a game table on which the readers are provided is limited. Accordingly, it is an object of the present invention to provide a casino gaming medium and gaming table system that can reduce adjacent readings without limiting the design of the gaming table. Technical proposal adopted for solving the technical problems The game medium for a casino of the present invention is characterized by comprising a medium-side antenna, a resistor element connected to the medium-side antenna, and an IC chip that stores medium information and outputs the medium information based on induced electromotive force generated in the medium-side antenna. In general, in a conventional dielectric-side antenna, an LC circuit is designed such that the resonant frequency is within a predetermined frequency band, and the loss is reduced by increasing the Q (Quality Factor) value specified by 1/R (L/C) as much as possible, thereby improving the operation efficiency within the predetermined frequency band. The present invention provides a game medium for a casino, wherein a resistance element which is not normally provided is connected to a medium-side antenna. Accordingly, the Q value can be reduced by the resistance value of the resistor element connected to the medium-side antenna without affecting the resonance frequency of the medium-side antenna, and the sensitivity can be made sluggish by intentionally reducing the Q value to such an extent that adjacent reading is not performed in a game table in practical use. In the game medium for a casino of the present invention, the medium-side antenna may be designed to have a resonance frequency higher than a predetermined frequency band. According to the above configuration, by setting the resonance frequency of the medium-side antenna higher than the predetermined frequency band in advance, even if the resonance frequency of the plurality of medium-side antennas stacked is reduced, the possibility of being within the range in which the game medium for a casino can o