4. Dynamic optical information storage or retrieval
  5. Optical storage medium structure
  6. Disk cartridge

DPHI Acquisitions, Inc.

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Beamshaper for optical head

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate

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BEMF timing system

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
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Block-level storage device with content security

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
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Calibration initiation methods for a tracking and focus...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing
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Calibration of a focus error signal gain in a focus servo...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
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