OPTICAL MEMORY WITH STORAGE IN THREE DIMENSIONS

A data recording and read-out apparatus and method in which a ferroelectric ceramic substrate is remanently polarized to store information. Upon being illuminated, the substrate produces a photovoltaic voltage, which is detected to effect read-out. A disk of ferroelectric ceramic material to which i...

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Bibliographische Detailangaben
Hauptverfasser:	BRODY, PHILIP S
Format:	Patent
Sprache:	eng
Schlagworte:	APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOTOTHERWISE PROVIDED FOR BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER NUCLEAR ENGINEERING NUCLEAR PHYSICS OBTAINING ENERGY FROM RADIOACTIVE SOURCES PHYSICS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SEMICONDUCTOR DEVICES STATIC STORES UTILISING COSMIC RADIATION
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Beschreibung
Zusammenfassung:	A data recording and read-out apparatus and method in which a ferroelectric ceramic substrate is remanently polarized to store information. Upon being illuminated, the substrate produces a photovoltaic voltage, which is detected to effect read-out. A disk of ferroelectric ceramic material to which information is entered by spiral tracking, either in a single track or in multiple tracks. A self-scanning data record comprised of a plurality of ferroelectric ceramic cells which are remanently polarized, and which are read out by a register.