Electricity: motive power systems – Positional servo systems – With compensating features
Reexamination Certificate
2006-07-25
2006-07-25
Ip, Paul (Department: 2837)
Electricity: motive power systems
Positional servo systems
With compensating features
C318S611000, C318S616000
Reexamination Certificate
active
07081730
ABSTRACT:
A motor controller system uses a rotary sensor with a plurality of signal conditioning units, coupled to the rotary sensor. Each of these units, which is associated with a particular range of motor output shaft rotation rates, generate a feedback signal indicative of the position of the motor's output shaft. A controller (i) converts a selected motor output shaft rotation rate to a corresponding incremental amount of rotational movement for a selected fixed time period, (ii) selects, at periodic completions of the selected fixed time period, the feedback signal from one of the signal conditioning units for which the particular range of motor output shaft rotation rates associated therewith encompasses the selected motor output shaft rotation rate, and (iii) generates a motor drive signal based on a difference between the incremental amount of rotational movement and the feedback signal from the selected one of the signal conditioning units.
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Alhorn Dean C.
Dutton Kenneth R.
Howard David E.
Paulson Mitchell Scott
Smith Dennis A.
Bergen Peter J. Van
Ip Paul
McGroary James J.
The United States of America as represented by the Administrator
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