Electricity: motive power systems – Synchronous motor systems – Synchronization systems
Reexamination Certificate
2008-03-04
2008-03-04
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Synchronization systems
C318S132000, C318S254100, C318S434000, C318S700000
Reexamination Certificate
active
10756380
ABSTRACT:
A method for correcting speed feedback in a drive motor by calculating the averages of speed reference and speed measurement for both downward and upward constant-speed travel and then identifying the gain and zero factors and correcting the measured speed measurement to the correct value.
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Birch & Stewart Kolasch & Birch, LLP
Donovan Lincoln
Kone Corporation
Smith Tyrone
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