Patent Publication Number: US-2023144768-A1

Title: Table game device

Description:
TECHNICAL FIELD 
     The present invention relates to a table game device that is used for a casino game, for example, played on a table. 
     BACKGROUND ART 
     Some of the casino games played on a table in game facilities use chips. Recently the authenticity of these chips and the fraudulent acts caused by the fake chips have posed problems, and various countermeasures have been taken. Patent Literature 1 describes a game machine that uses a medal having a radio frequency identification (RFID) tag embedded, and the RFID tag contains the identification information recorded in advance. This game machine is configured to read the identification information of a medal inserted in the medal slot with a reader installed at the slot, and compare the read identification information with the information registered in the ROM in advance to determine whether the medal is a real one or not. Patent Literature 2 describes a management system for a game facility such as a casino. Each of the chips used has a wireless IC (RFID) tag that records information to let the system know the number and total amount of the chips bet in the game, and the system includes an IC tag reader that is installed under the game table to read the recorded information. 
     Patent Literature 3 describes a game system to implement an electronic table game. The system includes a projector in the space below a transparent table board. The projector projects a game board image toward the lower face of the table board, and the game system manages a game that uses chips placed on the table board corresponding to the projected image. 
     CITATION LIST 
     Patent Literature 
     
         
         Patent Literature 1: Patent Application Publication No. 2006-110114 
         Patent Literature 2: Patent Application Publication No. 2020-121166 
         Patent Literature 3: US2020105087A1 
       
    
     SUMMARY OF INVENTION 
     Technical Problem 
     Patent Literature 1 simply detects the authenticity of medals passing through the slot. This literature does not describe the technique of identifying the types of medals stacked as a pile in a bet area on the game table to calculate the total amount of the medal value for each player. The system of Patent Literature 2 further includes a surveillance camera above the game table because the IC tag reader under the game table fails to read the total amount of the bet chip value accurately. The system then acquires the total amount of the chips by identifying the types and the number of the chips through the analysis of the image taken by the camera. 
     In Patent Literature 3, the projector in the space below the table board projects an image on the lower face of the table board. To allow the player to view the image from the above of the upper face of the table board, the table board has to be made of a material that transmits light, such as glass, and accordingly has a complicated and special structure. A chip sensor may be placed on the lower face of the table board. This chip sensor will block the projected light and interrupt the image, and also cause a problem in appearance. A surveillance camera may be placed above the table board to take an image of the table surface. In this case, the camera will face the light from the projector, and the projected light may enter the surveillance image. This can inhibit the high-precision image analysis. To cope with the problem, the system of Patent Literature 3 can be improved to include both the projector and the surveillance camera placed above the table board. This configuration, however, poses a problem of the appearance. 
     In view of the above, the present invention provides a table game device with a simple configuration, including an electronic game table that does not affect the chip identification process. 
     Solution to Problem 
     A table game device according to the present invention includes: a game table having an upper face on which at least a game area and bet areas for a predetermined number of players are configured, the game area being for playing a game, the bet areas being for placing a chip to bet to a result of the game, the chip integrally including an RFID tag having identification information including a virtual value of virtual currency written to be readable; an RFID reader disposed below the upper face of the game table to be opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area; and a projector disposed in a space above the game table, the projector being configured to project a game board image on the upper face of the game table so as to correspond to the game area and the bet areas. 
     A table game device according to the present invention includes: a chip for bet, the chip integrally including an RFID tag having identification information including a virtual value of virtual currency written to be readable; a game table having an upper face on which at least a game area and bet areas for a predetermined number of players are configured, the game area being for playing a game, the bet areas being for placing the chip to bet to a result of the game; an RFID reader disposed below the upper face of the game table to be opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area; and a projector disposed in a space above the game table, the projector being configured to project a game board image on the upper face of the game table so as to correspond to the game area and the bet areas. 
     According to these aspects of the invention, the identification information of chips placed in the bet areas on the game table is automatically read by the RFID readers located at a lower part of the game table. The present invention also enables detection of the virtual value from the read identification information, and necessary verification of authenticity. The projector located above projects a game board image on the game table, so that the game table functions as an electronic game table. On the game table, only the chips are placed, and no obstacles to block the projected light are on the table. In this way, the present invention provides a table game device with a simple configuration, including an electronic game table that does not affect the identification process of the bet chips. 
     Advantageous Effects of Invention 
     The present invention provides a table game device with a simple configuration, including an electronic game table that does not affect the identification process of bet chips. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    schematically shows the overall configuration of one embodiment of a game system including a predetermined number of table game devices according to the present invention. 
         FIG.  2 A  and  FIG.  2 B  show one example of a game table, where  FIG.  2 A  is a perspective view of the game table having RFID readers embedded, and  FIG.  2 B  is a view taken along the arrow B-B′. 
         FIG.  3 A  and  FIG.  3 B  show an example of an image that represents game board graphics, where  FIG.  3 A  shows a game board image for a blackjack game and  FIG.  3 B  shows a game board image for a baccarat game. 
         FIG.  4 A  and  FIG.  4 B  show an RFID reader and its directivity, where  FIG.  4 A  shows an RFID reader having a rectangular shape in a plan view, and  FIG.  4 B  shows an RFID reader having a circular shape in a plan view. 
         FIG.  5 A ,  FIG.  5 B , and  FIG.  5 C  show the structure of a chip, where  FIG.  5 A  is a plan view,  FIG.  5 B  is a view taken along the arrow B-B′, and  FIG.  5 C  is a view taken along the arrow B-B′ showing another embodiment. 
         FIG.  6    shows the functional configuration of one embodiment of a game system including a table game device according to the present invention. 
         FIG.  7    shows an example of an effect image of the total virtual value of bet chips. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
       FIG.  1    schematically shows the overall configuration of one embodiment of a game system  1  including a predetermined number of table game devices  20  according to the present invention. In one example, facility F is a game arcade, in which one or more table game devices  20  for business use are installed. In facility F, a facility management unit  10  that manages and operates each of the table game devices  20 , and an entry/exit monitoring unit  30  that monitors the doorway in facility F are installed via a hub  100 . The facility management unit  10  includes a controller  11  having a processor (CPU) to execute information processing and a display  12  connected to the controller  11  as well as an RFID reader  13  and a server  14  that are described later. The entry/exit monitoring unit  30  includes a controller  31  having a processor (CPU) to execute information processing, and RFID readers  321  and  322  that are described later. The details of the facility management unit  10  and the entry/exit monitoring unit  30  will be described later. 
     Each table game device  20  includes a game table  200  made of a material that transmits electromagnetic waves, and a controller  21  at an appropriate position or in the vicinity of the game table to progress a game and process a game result. The table game device  20  also includes a display  26  as needed. The game table  200  includes a predetermined number of RFID reader(s)  23 , including an RFID reader  230 , an RFID reader  231 , ...  23   m . At an appropriate position, preferably at a center and above the game table  200 , a projector  25  is placed to project an optical image onto the upper face of the game table  200 . In one mode, the projector  25  may be suspended from the ceiling of the facility or be attached via a support column erected on the floor. The optical image is preferably a color image, which is a static image that shows graphics of the game board. As needed, the optical image also includes a static image and a dynamic image according to the progress of the game or for a dramatic effect (hereinafter an image of this type is called an effect image) . 
     The table game device  20  is applicable to all games played on the board of the game table  200 , such as a blackjack game, a baccarat game, and a poker game. These games are played using a plurality of types of cards with different scores to decide the winning or losing according to a predetermined game rule. The table game device  20  is configured to make a bet using a chip as a substitute for virtual currency about the winning or losing of a game. Depending on the winning or losing, that is, if the player loses, the dealer, i.e., the facility F collects the bet amount. If the player wins, a predetermined virtual value corresponding to the bet will be redeemed (refunded) to the player. 
     The game table  200  has a board having a predetermined shape and thickness. In one example, this may be a part of an elliptical shape as shown in  FIG.  2 A  or have another shape. The game table  200  is supported at a predetermined height position by a support column  201 , for example. The game table  200  is colored in green, white, and other colors, or is in single color, instead of the conventional game table having graphics on the surface according to the type of a game. The game table  200  has a board surface of a material that appropriately reflects the projected light. 
     The projector  25  projects an optical image, a game board image corresponding to the type of a game from the space above the game table  200  toward the board surface and displays the image there, and makes the game table  200  function as an electronic game table. 
       FIG.  3 A  and  FIG.  3 B  each are an example of an optically projected image that can be displayed on the board surface of the game table  200  of  FIG.  2 A .  FIG.  3 A  shows a game board image  5  for a blackjack game and  FIG.  3 B  shows a game board image  6  for a baccarat game. In  FIGS.  3 A and  3 B , the edge along the straight line (upper edge of these figures) corresponds to the standing position of the dealer, and the arc of the ellipse corresponds to the standing position of the player(s). 
     The game board image  5  in  FIG.  3 A  shows an image of bet areas having marks  50  ( 51 ,  52 , ...) arranged in the circumferential direction of the ellipse, each of the marks having a predetermined shape such as a circle, an image of the numbers  1  to  7  corresponding to the marks  51 ,  52 ..., and an image of appropriate graphics in a game area close to the standing position of the dealer. Players can participate in the blackjack game by placing their own chips in the bet areas corresponding to the vacant number positions. At the position of each mark  51 ,  52 ..., an RFID reader  231  described later is disposed opposite to the game table  200  as shown in the dashed line surrounding the mark  51 , for example. The RFID reader  231  reads information on the chips there. 
     The game board image  6  in  FIG.  3 B  includes an image of three lines  61 ,  62 ,  63  that are concentric with the arc of the ellipse and are almost similar in shape having three sizes from small to large, an image of straight lines  64  extending radially at equal intervals in the circumferential direction centered around the standing position of the dealer, and an image of “Player”, “Banker” and “Tie” that are displayed in bet areas Ap, Ab, and At, respectively, surrounded by the lines  61 ,  62 ,  63  and the straight lines  64 . The game board image  6  also includes an image of numbers  1  to  7  corresponding to the outermost bet areas Ap, and an image of appropriate graphics (not shown in  FIG.  3 B ) that is the game area close to the standing position of the dealer. Preferably, the game board images shown in  FIG.  3 A  and  FIG.  3 B  include a line image as a whole or in part (for example, a line image that divides the bet area) and not an image extending over the plane (plane image), so as to minimize the blockage of the projected images from above by a part of the human body such as the player or the dealer’s hand. The shape of the bet area is not limited to the example of  FIGS.  3 A and  3 B , and various shapes can be used. 
     Referring back to  FIG.  2 A  and  FIG.  2 B , the RFID readers  23  ( 230 ,  231 ...,  234 ...,  23   m ) are embedded in the game table  200 . The RFID reader  230  corresponds to the place where the chip tray (not shown) is to be placed, and has a wider directional width than other RFID readers  231 , ... have. The RFID reader  230  reads the identification information of the chips  4  in the chip tray. The chip tray (not shown) temporarily stores a plurality of (in type and number) chips  4  for redeeming and collected chips  4 . The chip tray is operated by the dealer to collect the chips  4  bet by the losing player or to redeem the chips  4  for the virtual value equal to the bet amount to the winning player. Each RFID reader  23  reads the information of the chips bet in the corresponding bet area.  FIG.  2 B  shows the installation of the RFID readers  230  and  234 . As shown in this embodiment, the game table  200  has the laminate of a lower layer  201  and an upper layer  202 . The upper layer  202  has a recess  2021  on the lower face that stores the RFID readers  23  and the lead wire. This configuration enables easy assembling of a game table simply by replacing the upper layer  202  according to the game type. 
     An image of the mark  50  indicating the bet area is displayed above the RFID reader  23 , and as illustrated in  FIG.  2 B , chips  4  bet by the player are stacked at that position. As shown in  FIG.  2 B , the directivity ST of shortwaves to UHF waves used for the RFID reader  23  preferably has a directivity angle of ±90°. In the present embodiment, the directivity of the RFID reader  23  is set at ST, ST′ of ±90° for both of  FIG.  4 A  having the emitting surface of the RFID reader  23  that is rectangular in plan view and  FIG.  4 B  having the emitting surface of the RFID reader  23 ′ that is circular in plan view. Note here that the directivity (directivity angle) does not have to be exactly ±90°, but may be narrower or wider than that. 
       FIG.  5 A ,  FIG.  5 B , and  FIG.  5 C  show the structure of the chip  4 .  FIG.  5 A  is a plan view,  FIG.  5 B  is a view taken along the arrow B-B′, and  FIG.  5 C  is a view taken along the arrow B-B′ showing another embodiment. The chip  4  has a disk shape (medal shape) and is mainly made of a clay material or a resin material. The chip may be made of resin by compression-molding so that it appears heavy, if required. In one example, the chip  4  may have an RFID tag  7  having a cuboid shape embedded ( FIG.  5 B ), or may have such an RFID tag  7  attached or stored with one surface of the tag exposed on the back side of the chip  4  ( FIG.  5 C ). The RFID tag  7  includes a memory that stores identification information, and the stored information is read in a non-contact manner via radio waves when the chip  4 , that is, the RFID tag  7  is brought close to the RFID reader  23 . 
     The RFID tag  7  and the RFID reader  23  are known techniques, and are briefly described below. The RFID tag  7  includes at least a memory, a power generation unit, and an antenna unit. The RFID reader  23  includes at least an antenna, a transmitter/receiver, and a signal processor. The transmitter/receiver of the RFID reader  23  supplies power to the power generation unit of the RFID tag  7 , reads the identification information stored in the memory, and executes predetermined signal processing of the read signal. 
     The memory of the RFID tag  7  stores identification information including individual attributes of the chip  4  to be integrated with the RFID tag  7  to identify the chip  4 . The identification information is written by an external specialist, for example. In one example, the identification information includes production information of the chip  4 , which is virtual currency for games, casino information, virtual value information indicating the type of the chip, and a serial number. The virtual value information is multiple types of numerical information, such as $ 1, ... $ 10, ... $ 100, ... $ 10,000. 
     The signal processor of the RFID reader  23  executes reproduction processing of the received identification information and batch read processing (anti-collision). The batch read processing is a known technology, and identifies each of a plurality of RFID tags  7  coexisting in the directivity range of radio waves based on a time-slot data processing technology, for example. 
     Next, referring to  FIG.  6   , the following describes the functional configuration and the operation of various parts of the game system  1 . The facility management unit  10  is connected to all of the table game devices  20  in the facility F to be communicable by wire or wireless, and comprehensively manages the game status, game result information, and chip status of each table game device  20  and also constantly manages the monitoring result of the entry/exit monitoring unit  30 . 
     Receiving chips  4  delivered from an external specialist, for example, the RFID reader  13  in the facility management unit  10  reads the identification information written in the memory of the RFID tag  7  of each chip  4  in advance. The server  14  stores (registers) the read identification information. Registering the identification information associates at least the serial number of the chip  4  with the virtual value information. The identification information is used as the registration information on all of the chips  4 . This identification information is then read later by the table game devices  20  and the entry/exit management unit  30  to verify the authenticity of the chips  4  and recognize the location (table game devices  20 , RFID readers  23 ,  32 ) of the chips  4 . 
     In addition to the identification information, the server  14  stores a management program that manages the operation of the entire facility F, game rules, game board images (see  FIG.  3 A  and  FIG.  3 B ), and various types of effect images (used for during the games or during the game pause). The server  14  also acquires information about the game from each table game device  20  and information read by the entry/exit monitoring unit  30  for storage. 
     The controller  11  executes the management program in the server  14  to function as an operation management unit  111  and a chip management unit  112 . The operation management unit  111  manages the game progress and the game result according to the card information on the dealer and the card information on each player that are taken from the table game device  20 , the total virtual value of the chips bet by each player, and the game rule. Information on the progress of the game contains the game rule, information on the operation by the dealer, and the information read from a known card provider  24  (see  FIG.  6   ). The card provider  24  is called a shoe, and has a function of drawing cards used in the game, and scanning the images on the cards during the drawing to read the scores (typically the scores indicated on the playing cards: numbers A, 1, ... 10, J, ... K) . In the mode of using the card provider  24 , the winning or losing of the game can be automatically determined by the game rule based on the read information. 
     The chip management unit  112  reads the identification information of the chips  4  bet in the bet areas  50 , and executes the authenticity determination process and the calculation process of the virtual value. Once the virtual value in each bet area is calculated, the projector  25  projects an image of the virtual value at a predetermined position near the corresponding bet area  50  to display it on the table board. 
       FIG.  7    shows an example of the image that displays an effect image of the total virtual value of the chips  4 . This corresponds to  FIG.  2 B , and four chips  4  each marked with a virtual value of $ 10 are stacked in the bet area  54  and two chips  4  each marked with a virtual value of $ 100 are stacked next to them. In response to the completion of reading of the chips  4  by the RFID reader  23 , the projector  25  projects a visible effect image  81  of the total virtual value calculated by the chip management unit  112  at a predetermined region  8  corresponding to the bet area  54 . This visual effect of the image  81  enhances the attraction of the game. The operation management unit  111  may also display an effect image according to the progress of the game. Or in response to the decision of the winner or loser, the operation management unit  111  may display an effect image for a winner or a loser depending on whether the player is the winner or the loser. 
     The entry/exit monitoring unit  30  detects unauthorized activity of the players, such as taking the chips  4  from the facility or bringing in fake chips, and issues a necessary warning (e.g., displaying a warning or outputting a warning sound by a warning unit not shown). To this end, a required number (one or more) of RFID reader(s)  32  may be placed in the appropriate positions in the passage of the doorway to effectively detect the authenticity of the chips. The information read by the RFID reader (s)  32  is transmitted to the server  14  of the facility management unit  10  by wire or wirelessly, and is determined by the chip management unit  112 . Then the chip management unit  112  issues a warning, designates the read identification information as unauthorized chip information, or discards the chip. In the present embodiment, RFID readers  321  and  322  are placed on the left and right of the doorway, respectively, that is, on the exit passage and the entrance passage, respectively, so as to detect unauthorized taking-out and carrying-in of the chips. Depending on the size of the doorway, the required number of RFID readers may be placed on the ceiling and on the floor. To detect fake chips, a plurality of RFID readers may be configured to redundantly detect the chips. 
     The present embodiment includes a plurality of table game devices  20 , and the following assumes the case of a single type of the game played with these devices, and describes the table game device  20   a  as an example. 
     The table game device  20   a  includes a controller  21  having a processor (CPU). To the controller  21 , a memory  22 , a plurality of RFID readers  23 , a card provider  24 , a projector  25 , and a display  26  are connected. The memory  22  includes a memory area in which a game program of a table game to be executed, table game rules and other information are installed from the server  14 , and a work area for data processing. 
     For the plurality of RFID readers  23 , eight RFID readers  230 ,  231 ... 23   m  are embedded in the game table  200  as shown in  FIG.  2 A  or placed on the back side, for example. The number of RFID readers  23  varies with the type of game to be assumed. In one example, for the baccarat game of  FIG.  3 B , each player occupies three bet areas, that is, three RFID readers are required. Each RFID reader  23  in the facility F has a unique ID such as a serial number, and is connected to the controller  21  by wire or wireless so as to be communicable. The controller  21  identifies the RFID reader  23  that is a sender of information because the ID information unique to the RFID reader  23  is added to the communication. 
     The table game device  20   a  includes the card provider  24  as needed, which may be a card reader (shoe) described above. In the mode of including the card provider  24 , the device is able to determine the game result. 
     The table game device  20   a  may include the display  26  as needed. In addition to the projection of a game board image and an effect image on the table board by the projector  25 , the display  26  displays an effect image, for example. The display  26  may be an image display having a flat screen or a known stereoscopic image display that draws an image in the air for signage. For the latter case of signage, the image in the air is placed at a suitable space above the board of the game table  200  to present the image to the player. 
     The controller  21  executes a game program, for example, to function as a game progress processor  211 , an RF tag information processor  212 , an image projection processor  213 , and a chip management unit  214 . 
     The game progress processor  211  executes the processes including the instruction to start a game by the dealer, the instruction to take in bet information, the distribution of cards and the reading of the score, the judgment of the game result, the collection of chips for each player, and the ending of processing the redeemed amount. The game progress processor  211  temporarily stores the total virtual value of the chips  4  in the bet area for each player read by the RFID reader  23 , and instructs the display of an effect image (see  FIG.  7   , for example). 
     The RF tag reader  212  reads the confirmed bets at the end of the betting period, i.e., reading the identification information of the chips  4  placed in the bet area of each player for the authenticity determination process at the server  10 , and calculating the total virtual value that the player bets. 
     The image projection processor  213  instructs the selection of an image of the game board, various effect images during the progress of the game and at the end of the game, and the projection of the images. In one embodiment, these images may be read from the server  14 . In another embodiment, the images may be read into the memory  22  in advance according to the type of game to be set, and may be read from the memory  22  during the game. 
     The chip management unit  214  manages the chips stored in the chip tray or collected in the chip tray based on their identification information. 
     In the present embodiment, the card reading operation by the card provider  24  is used as the reading-end timing of the identification information of the bet chips  4 . Another embodiment may include an operating unit that the dealer can operate, in place of or in addition to the card provider  24 . Then, in response to the operation with this operating unit, the reading operation of the chips  4  and other operation of displaying effect images may be instructed. 
     In this embodiment, information on the game rules and the game board images is stored in the server  14 . In another embodiment, the information may be stored in the memory  22  of each table game device  20 . 
     The above embodiment describes the blackjack game as an example of the table game. In another embodiment, other types of table game such as a baccarat game may be assumed. In this case, based on the information on the virtual value of the chips bet in each bet area for each player and the collection and redeeming according to the winning or losing in the game, the chips are moved. After the movement, the total virtual value of the chips stored in the chip tray can be managed. 
     As described above, a table game device according to the present invention preferably includes: a game table having an upper face on which at least a game area and bet areas for a predetermined number of players are configured, the game area being for playing a game, the bet areas being for placing a chip to bet to a result of the game, the chip integrally including an RFID tag having identification information including a virtual value of virtual currency written to be readable; an RFID reader disposed below the upper face of the game table to be opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area; and a projector disposed in a space above the game table, the projector being configured to project a game board image on the upper face of the game table so as to correspond to the game area and the bet areas. 
     A table game device according to the present invention preferably includes: a chip for bet, the chip integrally including an RFID tag having identification information including a virtual value of virtual currency written to be readable; a game table having an upper face on which at least a game area and bet areas for a predetermined number of players are configured, the game area being for playing a game and the bet areas being for placing the chip to bet to a result of the game; an RFID reader disposed below the upper face of the game table to be opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area; and a projector disposed in a space above the game table, the projector being configured to project a game board image on the upper face of the game table so as to correspond to the game area and the bet areas. 
     According to these aspects of the invention, the identification information of chips placed in the bet areas on the game table is automatically read by the RFID readers located at a lower part of the game table. The projector located above projects a game board image on the game table, so that the game table functions as an electronic game table. On the game table, only the chips are placed, and no obstacles to block the projected light are on the table. In this way, the present invention provides a table game device with a simple configuration, including an electronic game table that does not affect the identification process of the bet chips. 
     Preferably in the table game device, the game table has a laminate of a lower layer and an upper layer in a thickness direction, and has a recess in the upper layer to embed the RFID readers. This configuration enables easy assembling of a game table for another table game simply by replacing the upper layer. 
     Preferably, the projector is disposed substantially at a center and above the game table. This configuration hardly blocks the projected light from the projector by a person such as a player. 
     Preferably, the projector projects a line image. This configuration suppresses the projected image entering on the surface of the chips bet in the bet areas on the game table. Note that not all of the images need to be line images, and a plane image may be projected on a part of the portion other than the bed areas, for example. 
     Preferably, the projector displays an effect image of a total value of a bet at a position corresponding to the bet area based on the identification information read from the RF tag of one or a plurality of chips placed in the bet area. With this configuration, the total value is displayed as an effect image. This allows the player to notice betting of an erroneous amount, and also to easily see the betting status of another player. 
     Preferably, the RFID reader emits radio waves having a directivity of ±90°. With this configuration, the RFID reader may have a radio-wave emitting face substantially similar to that of the bet area. This means that RFID readers can be installed also for a baccarat game, in which a plurality of bet areas are close to each other. 
     Preferably, the table game device according to the present invention further includes: a memory that stores information for verification that is used for verification of authenticity of the identification information written in the RF tag of the chip used in the table game; and a verification unit configured to compare identification information read by the RFID reader with the information for verification stored in the memory for verification. This configuration allows the chips read by the RFID reader, that is, all of the chips used in the game to be verified for authenticity, which prevents fraudulent activity as much as possible.  
     
       
         
           
               
               
             
               
                 REFERENCE SIGNS LIST 
               
             
            
               
                 
                   1 
                 
                 Game system 
               
               
                 
                   10 
                 
                 Facility management unit 
               
               
                 
                   112 
                 
                 Chip management unit (verification unit) 
               
               
                 
                   14 
                 
                 Server (memory) 
               
               
                   20 ,  20   a , ...  20   n   
                 Table game device 
               
               
                 
                   200 
                 
                 Game table 
               
               
                 
                   21 
                 
                 Controller 
               
               
                 
                   211 
                 
                 Game progress processor 
               
               
                 
                   212 
                 
                 RF tag information processor 
               
               
                 
                   213 
                 
                 Image projection processor 
               
               
                 
                   214 
                 
                 Chip management unit 
               
               
                 
                   22 
                 
                 Memory 
               
               
                   23 ,  23 ′,  32 
 
                 RFID reader 
               
               
                 
                   25 
                 
                 Projector 
               
               
                 
                   30 
                 
                 Entry/exit monitoring unit 
               
               
                 
                   4 
                 
                 Chip 
               
               
                   5 ,  6   
                 Game board image 
               
               
                   50 , Ap, Ab, At 
                 Bet area 
               
               
                 
                   7 
                 
                 RFID tag 
               
               
                 
                   8 
                 
                 Effect area