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Photomagnetic disc record/reproduction apparatus including impro

Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent

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Photomagnetic head apparatus

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

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Photomagnetic recording and erasing apparatus having magnetic fi

Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent

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Photomagnetic recording apparatus recording with alternating mag

Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent

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Photomagnetic recording device and photomagnetic reproducing dev

Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent

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Photomagnetic recording device and photomagnetic reproducing dev

Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent

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Photomagnetic recording/reproduction apparatus

Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Reexamination Certificate

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Photorefractive, erasable, compact laser disk

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

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control...
Reexamination Certificate

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Binary pulse train information signal – Format arrangement processing for auxiliary information
Reexamination Certificate

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Physical identification data addressing method using wobble...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control...
Reexamination Certificate

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Physical play-in-place audio compact disc jewel case

Dynamic information storage or retrieval – With particular cabinet structure
Reexamination Certificate

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Physically optimized optical disc structure, method and apparatu

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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Pick-up

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Mechanical modification or sensing of storage medium
Patent

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Pick-up angle adjustment mechanism for 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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Pick-up assembly for video disc player

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Mechanical modification or sensing of storage medium
Patent

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Pick-up control circuits for disc information reproducing appara

Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
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