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Focusing detection optical path for an optical information proce

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing distance of an objective lens according to a vertical d

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
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Focusing error detecting apparatus

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing error detecting equipment

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing error detecting system for optical head

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing error detection apparatus

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
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Focusing method of layer jumping for an optical storage device

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

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FOCUSING METHOD, METHOD OF DETECTING FOCAL POINT DEVIATION,...

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

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Focusing more than 30 depths from an aplanatic point of a plano-

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
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Focusing optical head movable radially by a carriage

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
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Focusing search circuit and focusing servo circuit which are use

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing servo apparatus for an optical disc

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing servo apparatus for optical pickup

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

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Focusing servo controlling apparatus

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing servo controlling apparatus

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Focusing servo device and focusing servo method

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

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Focusing servo device, optical disc recording/reproducing...

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

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Focusing servo in an optical disk drive

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

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Focusing servo pull-in apparatus

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

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Focusing servo system and focus servo acquisition enable with mu

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