4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controls its own optical systems

Pyong-yong Seong

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Apparatus and method for detecting beam power in optical drive

Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate

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Apparatus and method for detecting beam power in optical drive

Optical communications – Receiver
Reexamination Certificate

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Apparatus and method for detecting beam power in optical drive

Optical communications – Receiver
Reexamination Certificate

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Catadioptric optical system, optical pickup and optical disk...

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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Compatible optical pickup and light output amount detecting...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
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Profile ID: LFUS-PAI-P-161092

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