Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism
Reexamination Certificate
2007-01-09
2007-01-09
Tzeng, Fred F. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Reexamination Certificate
active
09914170
ABSTRACT:
A method for controlling a motorized data-storage device, including extracting energy from a spindle motor to drive a positioning motor of the data-storage device and other components, such as circuitry. In normal operation of one embodiment, a disk is rotated at a constant velocity by a spindle motor and a read/write head is moved over the disk surface by a voice-coil motor. In the event of a power failure, energy is extracted from the spindle motor to drive the voice-coil motor so the head can be safely moved away from the disk.
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Fong Hin Sing
Krishnamoorthy Ravishanker
Boller Timothy L.
Jorgenson Lisa K.
Seed IP Law Group PLLC
STMicroelectronics Asia Pacific (PTE) Ltd.
Tzeng Fred F.
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