Patent ID: 7482772

Claim:
A motor stop control device utilizable for a gaming machine with a reel on which a plurality of symbols are formed, the motor stop control device comprising: a winning combination determination device for determining a winning combinations; a motor having at least three excitation phases to rotate the reel, wherein the motor is a stepping motor; and a motor stop controller for stopping the motor based on a stop instruction; wherein the motor stop controller executes any one of a first process and a second process corresponding to the winning combination determined by the winning combination determination device when the stop instruction occurs, in the first process the motor stop controller decreasing a predetermined voltage value applied to the motor rotating at a constant speed to a first voltage value lower than the predetermined voltage value and executing a stop control of the motor by 2-phase excitation and in the second process the motor stop controller decreasing the predetermined voltage value to a second voltage value which lies between the predetermined voltage value and the first voltage value and executing the stop control by the 2-phase excitation, wherein the first process includes a stop process for stopping a first predetermined symbol of the reel on a pay line, the first process being executed until a first predetermined time is elapsed since the stop instruction occurs, a power source change process for changing a predetermined power source with the predetermined voltage value to a first power source with the first voltage value, the power source change process being executed right after the first predetermined time is elapsed, and an excitation process for conducting the 2-phase excitation of the stepping motor, the excitation process being executed until the reel is completely stopped, wherein the second process includes a stop process for stopping a second predetermined symbol of the reel on a pay line, the stop process being executed until a second predetermined time including the first predetermined time and a specific time is elapsed since the stop instruction occurs, a power source change process for changing the predetermined power source with the predetermined voltage to a second power source with the second voltage value, the power source change process being executed right after the specific time is elapsed, and an excitation process for conducting the 2-phase excitation of the stepping motor, the excitation process being executed until the reel is completely stopped, and wherein an elapsed time, from when the stop instruction occurs to when the excitation process is completed, in the first process is equal to an elapsed time, from when the stop instruction occurs to when the excitation process is completed, in the second process.