The present invention provides a coin recognition unit having high recognition capacity. The coin recognition unit comprises magnetic sensors each configured to collect magnetic characteristics of a transported coin; at least one optical sensor disposed with a space from the magnetic sensors and configured to collect optical characteristics of a surface of the coin; a glass plate constituting a transport surface on which the coin is transported and having a larger size than the coin; and a controller configured to control the magnetic sensors and the at least one optical sensor and perform a recognition process, the glass plate covering at least part of each magnetic sensor and at least part of each optical sensor.

A coin processing device including: a material detection sensor including first and second coils facing each other with a coin passage interposed therebetween; an outer diameter detection sensor including ring-shaped third and fourth coils that surround the first and second coils, respectively; a first oscillation circuit connected to the material detection sensor that oscillates a first oscillation signal in an individual connection state and a series connected state and is connected to the material detection sensor and the outer diameter detection sensor; a second oscillation circuit connected to the outer diameter detection sensor that oscillates a second oscillation signal in the individual connection state; a switching unit that switches the individual connection state and the series connection state; a coin identification unit that detects an outer diameter of a coin using the second oscillation signal in the individual connection state or the first oscillation signal in the series connection state.

A coin processing device including: a material detection sensor including first and second coils facing each other with a coin passage interposed therebetween; an outer diameter detection sensor including ring-shaped third and fourth coils that surround the first and second coils, respectively; a first oscillation circuit connected to the material detection sensor that oscillates a first oscillation signal in an individual connection state and a series connected state and is connected to the material detection sensor and the outer diameter detection sensor; a second oscillation circuit connected to the outer diameter detection sensor that oscillates a second oscillation signal in the individual connection state; a switching unit that switches the individual connection state and the series connection state; a coin identification unit that detects an outer diameter of a coin using the second oscillation signal in the individual connection state or the first oscillation signal in the series connection state.

A coin processing apparatus configured to: cause a coin output conveying unit to collectively convey coins taken out for each denomination from a plurality of coin containers where the coins are housed in the respective coin containers for each denomination; and dispense the conveyed coins from a coin output port through a coin output shoot unit, the coin processing apparatus includes: a coin stay detecting sensor configured to detect a coin stay on a shoot face of the coin output shoot unit; a reporting unit configured to perform report output for abnormality; and a controller configured to cause the reporting unit to perform report output for coin stay abnormality in the coin output shoot unit when the coin stay detecting sensor detects the coin stay.

When an unfair gaming currency is delivered to a dealer from a player, the currency is detected as unfair. The inspection system for inspecting the gaming currency, in which an RF tag is built, comprises: a gaming currency tray for housing the gaming currencies of the dealer in a casino game; an RF reader for reading the RF tags of the plural gaming currencies housed in the gaming currency tray; plural photosensors for detecting at least the number of the plural gaming currencies housed in the gaming currency tray at a constant time interval or always in a method other than RFID; and an inspection/alarm part for generating alarms when the number of the gaming currencies whose RF tags are read by the RF reader is not equal to the number of the gaming currencies detected by the plural photosensors.

When an unfair gaming currency is delivered to a dealer from a player, the currency is detected as unfair. The inspection system for inspecting the gaming currency, in which an RF tag is built, comprises: a gaming currency tray for housing the gaming currencies of the dealer in a casino game; an RF reader for reading the RF tags of the plural gaming currencies housed in the gaming currency tray; plural photosensors for detecting at least the number of the plural gaming currencies housed in the gaming currency tray at a constant time interval or always in a method other than RFID; and an inspection/alarm part for generating alarms when the number of the gaming currencies whose RF tags are read by the RF reader is not equal to the number of the gaming currencies detected by the plural photosensors.

A magnetism detection device capable of improving the ability to detect magnetic features of coins and reducing a change in outputs due to a change in transport positions of coins, a coin recognition device, and a method for detecting magnetism using the magnetism detection device. The magnetism detection device includes a transport path on which a coin is to be transported, detection coils arranged on at least one side of a transport surface of the transport path and along a direction crossing a transport direction of the coin, and a controller configured to detect a magnetic feature of the coin based on an output signal from at least one but not all of the detection coils.

A magnetism detection device capable of improving the ability to detect magnetic features of coins and reducing a change in outputs due to a change in transport positions of coins, a coin recognition device, and a method for detecting magnetism using the magnetism detection device. The magnetism detection device includes a transport path on which a coin is to be transported, detection coils arranged on at least one side of a transport surface of the transport path and along a direction crossing a transport direction of the coin, and a controller configured to detect a magnetic feature of the coin based on an output signal from at least one but not all of the detection coils.

An inspection system of a chip includes a reading device and a determining unit. The reading device is configured to count a number of chips stored in a storage case, the chips associated with a table game and including a chip having a radio tag, read the radio tag while the chips are stored in the storage case, and acquire chip information. The determining unit is configured to compare the chip information of the chips in the storage case with a physical number of the chips in the storage case, determine that there is an abnormal chips among the chips stored in the storage case based on a determination that the counted number of the chips does not match a physical number of the chips in the storage case, and output a result associated with an indication of the abnormal chip.

An inspection system of a chip includes a reading device and a determining unit. The reading device is configured to count a number of chips stored in a storage case, the chips associated with a table game and including a chip having a radio tag, read the radio tag while the chips are stored in the storage case, and acquire chip information. The determining unit is configured to compare the chip information of the chips in the storage case with a physical number of the chips in the storage case, determine that there is an abnormal chips among the chips stored in the storage case based on a determination that the counted number of the chips does not match a physical number of the chips in the storage case, and output a result associated with an indication of the abnormal chip.