Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism
Reexamination Certificate
2006-04-25
2006-04-25
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Reexamination Certificate
active
07035032
ABSTRACT:
Methods and systems in accordance with embodiments of the present invention can provide for reduced power consumption in rotatable media data storage devices. A voice coil motor driver configured to operate as a linear driver can be operated in a quasi-switch mode, for example when idle, or linear mode, for example during read/write operations and seeks, thereby achieving power savings along with accurate current control. Alternatively, a voice coil motor driver configured to operate as a switched driver can be operated at a reduced limit cycle, for example when idle, or a higher limit cycle, for example during read/write operations and seeks, thereby achieving power savings.
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Fliesler & Meyer LLP
Hudspeth David
Matsushita Electric - Industrial Co., Ltd.
Tzeng Fred F.
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