Horology: time measuring systems or devices – Electrical time base – Solid state oscillating circuit type
Reexamination Certificate
2011-05-17
2011-05-17
Miska, Vit W (Department: 2833)
Horology: time measuring systems or devices
Electrical time base
Solid state oscillating circuit type
C368S204000, C318S696000
Reexamination Certificate
active
07944778
ABSTRACT:
A motor drive control circuit that operates using a primary power supply and controls driving a motor has a drive circuit that drives the motor, a power supply circuit that is disposed between the primary power supply and the drive circuit, and uses electrical energy supplied from the primary power supply to supply a drive voltage to the drive circuit, and a power supply control circuit that controls operation of the power supply circuit. The power supply control circuit monitors the drive voltage, stops the power supply circuit and stops supplying the drive voltage when the drive voltage is greater than or equal to a prescribed constant voltage, and activates the power supply circuit and supplies the drive voltage when the drive voltage is less than the prescribed constant voltage.
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Miska Vit W
Seiko Epson Corporation
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