Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Reexamination Certificate
2005-02-08
2005-02-08
Duda, Rina (Department: 2837)
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
C318S602000, C318S632000, C318S638000, C318S671000, C347S010000, C347S011000
Reexamination Certificate
active
06853161
ABSTRACT:
A motor control apparatus which can improve detection accuracy of control information and stabilize a control system includes a detector for detecting first pulse information which corresponds to the drive speed of a driven object and second pulse information out of phase with the first pulse information; edge detectors for detecting rising edges and falling edges of the detected first pulse information and second pulse information; edge interval measuring units for measuring edge-to-edge periods using the detected rising edges and falling edges; a calibrator for calibrating the measured edge-to-edge periods with a reference period for driving the driven object at constant speed; a corrector for correcting the first pulse information and second pulse information based on the calibration; and a controller for generating control commands to drive the driven object based on the corrected first pulse information and second pulse information.
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Kobayashi Nobutsune
Shoji Michiharu
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