ERASABLE OPTICAL DATA STORAGE MEDIUM AND METHOD FOR RECORDING DATA ON THE MEDIUM

An erasable optical data storage medium including a substrate and a dual layer of a first material and a second material on the substrate. The dual layer is susceptible to expansion and contraction, to writing data thermally, to erasing data thermally and mechanically, and to reading data optically,...

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Bibliographische Detailangaben
Hauptverfasser:	GORDON, NORMAN ROSS, SKIENS, W. EUGENE, FEYRER, CLYDE DEWAIN
Format:	Patent
Sprache:	eng
Schlagworte:	COLOUR PRINTING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LINING MACHINES PERFORMING OPERATIONS PHYSICS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An erasable optical data storage medium including a substrate and a dual layer of a first material and a second material on the substrate. The dual layer is susceptible to expansion and contraction, to writing data thermally, to erasing data thermally and mechanically, and to reading data optically, the first material and the second material, respectively, being bonded together and remaining in the same physical state upon the expansion and relaxation of the dual layer. Methods and apparatus are also disclosed for recording data bits on the medium.