| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine to execute the presentation by a presentation means based on the operation by a player, flexibly adaptable to the model change. SOLUTION: The game machine comprises an infrared sensor for detecting the operation by the player by sensing that a finger of the player touches an operation detection part of a projected image of the projected infrared light, and a hammer member 98 for executing the presentation based on the detection of the operation of the operation detection part. The infrared sensor is attached to a game board 4 for emitting infrared light toward the front on the player side. Accordingly, even if an operation part is not mounted on a game machine of a previous model before the one to be used in common, the game machine of the model can be used in common, and if a game machine of a new model which does not require the operation part is used in common, the infrared sensor can be removed by replacing the game board 4. In this way, the game machine to execute the presentation by the presentation means based on the operation of the operation part by the player can be flexibly adapted to the model change. COPYRIGHT: (C)2007,JPO&INPIT
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