Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2006-07-18
2006-07-18
Tran, Thang V (Department: 2653)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S047470
Reexamination Certificate
active
07079459
ABSTRACT:
A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The present invention includes starting the operation of a motor including windings and a rotor; placing the motor in a first operational state; driving the motor from the first operational state to a second operational state; and sensing a variation in an electrical waveform induced by driving of the motor to determine a cycle period from which the speed of the motor can be determined.
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Turner Christopher J.
Watt Charles R.
DPHI Acquisitions, Inc.
Hallman Jonathan W.
MacPherson Kwok & Chen & Heid LLP
Tran Thang V
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