4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controlled circuit

Yoshio Fukutomi

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Laser noise cancel circuit and optical disk device

Coherent light generators – Particular component circuitry – Having noise suppression circuitry
Reexamination Certificate

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Light-receiving device, optical pickup, and optical disc...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Light-receiving device, optical pickup, and optical disc...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Optical disk apparatus

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate

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Optical disk apparatus

Dynamic information storage or retrieval – Binary pulse train information signal – Including sampling or a/d converting
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2412045

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