4. Dynamic magnetic information storage or retrieval
  5. Automatic control of a recorder mechanism
  6. Controlling the record

Chuanwen Ji

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Disk drive disabling BEMF detection window to reduce...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Reexamination Certificate

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Disk drive employing a velocity profile and back EMF...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate

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Disk drive employing BEMF spindle speed control or wedge...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Reexamination Certificate

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Disk drive estimating angular position of spindle motor...

Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
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Disk drive initializing a coil temperature estimation...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
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Profile ID: LFUS-PAI-P-2824810

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