Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Reexamination Certificate
2005-03-29
2005-03-29
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
C318S618000, C318S640000, C318S602000
Reexamination Certificate
active
06873129
ABSTRACT:
A method of controlling a rotational velocity of a rotatable member during initialization of an analog encoder unit that generates a channel A signal and a channel B signal, includes the steps of processing the channel A signal and the channel B signal to generate a feedback signal, an integrity of the feedback signal being maintained even if only one of the channel A signal and channel B signal is functional; and controlling the rotational velocity of the rotatable member during the initialization of the analog encoder unit based on the feedback signal generated by processing the channel A signal and the channel B signal.
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Leverett Daniel Aaron
Writt John Thomas
Lexmark International Inc.
Ro Bentsu
Taylor & Aust PC
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