Patent ID: 6067202
Filing Date: 2000-05-23
Classification: G11B

Abstract:
A method for controlling a spindle motor having at least one winding in a storage device comprising a data storage medium rotatably supported by the spindle motor and having a plurality of tracks on each data storage surface thereof including data regions and nondata regions, a transducer assembly for selectively positioning a transducer over a desired track of each data storage surface for reading and writing of information stored on the medium, rotation of the motor being controlled by a spindle motor control system which provides a voltage waveform to each winding at selected commutation switching times, comprising the steps of:prior to the transducer being positioned over a nondata region on a current track of the data storage surface determining a selected commutation switching time; andadvancing or delaying the selected commutation switching time so that the commutation switching time occurs within the nondata region on a current track of the data storage surface and the transducer is positioned over the nondata region on a current track of the data storage surface.