| 摘要 |
PROBLEM TO BE SOLVED: To reinforce a performance phase using a sound of a game machine in a simple and low cost mechanism. SOLUTION: A drive source such as a motor is used to freely move a speaker unit itself on a driving rail. This constitution can actually move the sound source to provide a very effective sound performance. For example, a speaker is moved in notifying a ready-to-win condition to give a player an expectation, and the speaker is moved in a ready-to-win condition and a big win to provide the player with a performance by the sound different from a regular game. COPYRIGHT: (C)2005,JPO&NCIPI
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