| 摘要 |
<p>A jackpot controller (11) receives input signals from poker machines (12) via input/output (I/O) cards (13). Each I/O card (13) has 64 inputs, connected to respective poker machines (12). A counter (131) is provided for each input to count incoming pulses. The count is stored in a buffer (136) which is subsequently read by a microprocessor (110) within the controller (11). Unlike the polled port technique, the controller (11) is not required to spend the majority of time checking the inputs for signals from the poker machines. Every time a poker machine is played, the jackpot value is incremented and two random numbers are generated by the controller. The two numbers are compared and a jackpot win is triggered if the numbers match. The allowable range of the random numbers is progressively reduced so that a match is guaranteed by the time the jackpot reaches a predetermined maximum value.</p> |
