Electricity: motive power systems – Open-loop stepping motor control systems
Reexamination Certificate
2007-04-03
2007-04-03
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Open-loop stepping motor control systems
C318S685000, C318S269000, C318S272000, C273S14300R, C273S14800B, C273S1420HA, C463S016000, C463S020000
Reexamination Certificate
active
10940754
ABSTRACT:
It is disclosed the motor stop control device having the stepping motor49as the drive source of the reel3on which a plurality of symbols are formed, the motor stop control device being utilized in the reel-type gaming machine1and stopping the stepping motor49corresponding to the stop instruction from an external. When the stop instruction of the stepping motor49occurs based on the instruction from an external, the main CPU31drops the voltage value added to the stepping motor which is rotating at the constant speed to the voltage value lower than such voltage value and executes the stop process of the stepping motor49by 2-phase excitation.
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European Search Report, Application No.: 04022041.0-1238-, dated Jun. 16, 2005.
Nireki Takao
Suzuki Yuuichirou
Aruze Corp.
Donovan Lincoln
Rader & Fishman & Grauer, PLLC
Smith Tyrone
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