| 摘要 |
PROBLEM TO BE SOLVED: To prevent the fraudulence in a game machine such as a slot machine. SOLUTION: The game machine which has a token selector for counting tokens cast through a token slot, a sensor for detecting the tokens, provided on the token selector and a control part for counting the number of tokens cast from the output of the sensor is provided with a token casting interval calculation part for calculating the token casting intervals from the detection signals of the sensor, a reference token casting interval memory part for previously storing the reference token casting interval and a fraudulence detection part which determines the fraudulence by comparing the token casting intervals calculated by the token casting interval calculation part with the reference of the reference token casting interval memory part. COPYRIGHT: (C)2009,JPO&INPIT
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