Static information storage and retrieval – Addressing – Optical
Patent
1984-12-14
1986-12-30
Fears, Terrell W.
Static information storage and retrieval
Addressing
Optical
365235, 365215, 365113, G11C 1304
Patent
active
046334459
ABSTRACT:
An eraseable solid state optical memory has an array of selectively energizeable photoemitters which are imaged by suitable imaging means onto a data mask to optically address data stored thereon. To that end, the data mask is an eraseable optical recording medium, such as a tellurium suboxide or other chalcogenide material. A data writer is provided for programming, erasing and re-programming the data mask in situ while self-aligning the imaging means with the programmed data mask. The data mask may be erased and/or re-programmed in whole or part, thereby extending the utility of these memories to the storage of data that is subject to change.
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Fears Terrell W.
Xerox Corporation
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