Electricity: motive power systems – Positional servo systems – 'reset' systems
Reexamination Certificate
2011-06-07
2011-06-07
Masih, Karen (Department: 2837)
Electricity: motive power systems
Positional servo systems
'reset' systems
C318S599000, C318S621000
Reexamination Certificate
active
07956567
ABSTRACT:
A motor drive control device for controlling a rotational speed of a motor includes: a motor driver for rotationally driving a motor; a correction amount calculating section for detecting a rotational speed of an output of the motor in accordance with an alternate current signal outputted from an FG sensor and detecting a rotational position of a photoconductive drum, which is rotated by a rotational drive force of the motor, in accordance with a pulse outputted from an encoder; a speed controller for generating a speed control signal corresponding to a total correction amount, which is a sum of a correction amount calculated in the correction amount calculating section based on a rotational speed of the motor and a correction amount calculated based on a rotational position of the photoconductive drum, and outputting the generated speed control signal to the motor driver.
REFERENCES:
patent: 6812668 (2004-11-01), Akiyama
patent: 2003-18880 (2003-01-01), None
Hespos Gerald E.
Kyocera Mita Corporation
Masih Karen
Porco Michael J.
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