Electricity: motive power systems – Positional servo systems – Antibacklash systems
Reexamination Certificate
2007-02-08
2008-08-05
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Positional servo systems
Antibacklash systems
C318S560000, C700S125000, C700S186000, C700S159000, C700S044000
Reexamination Certificate
active
07408316
ABSTRACT:
A controller for motor activation providing accurate and repeatable position changes by pressing and releasing a push button switch. Repeatable position changes are made in an advance direction by triggering a digital counter for a predetermined number of cycles of a reference clock signal. Backlash in retard motion of the motor is reduced by similarly asserting a retard motor input for an amount of time determined by another digital counter with a following advance correction made automatically after the retard signal is applied, by applying a predetermined retard-advance movement amount, as again counted by a digital counter. The advance binary amount, the retard binary amount and the retard-advance binary amount of set through binary switch inputs to respective counters to count the respective time periods (TG3, TG1, and TG2).
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Hamilton Brook Smith & Reynolds P.C.
Innovative Motor Controls Inc.
Leykin Rita
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