Electricity: motive power systems – Positional servo systems – With particular motor control system responsive to the...
Reexamination Certificate
2006-04-11
2006-04-11
Duda, Rina (Department: 2837)
Electricity: motive power systems
Positional servo systems
With particular motor control system responsive to the...
C318S696000, C318S611000, C318S623000
Reexamination Certificate
active
07026781
ABSTRACT:
A stepping motor driving system includes: a stepping motor that rotates at a predetermined angle according to a driving pulse signal, a vibration detector that detects vibration to output a vibration signal, and a stepping motor control unit that controls the driving pulse signal, which is applied to the stepping motor, to rotate the stepping motor at the predetermined angle. The driving pulse signal includes a start-up current which is required for rotating the stepping motor at a unit angle and a holding current which maintains a rotational angle of the stepping motor rotated by the start-up current. The stepping motor control unit changes the level of the holding current according to the vibration signal which is outputted from the vibration detector.
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patent: 2003-58192 (2003-02-01), None
Kinoshita Hideki
Kojima Shigeru
Nishimura Takeshi
Togashi Jun
Yamazaki Hitoshi
Duda Rina
Pioneer Corporation
Sughrue & Mion, PLLC
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