Dynamic information storage or retrieval – Storage medium structure – Layered
Patent
1989-09-28
1992-01-07
Levy, Stuart S.
Dynamic information storage or retrieval
Storage medium structure
Layered
369283, 369286, 3692752, 3461351, 346 76L, 365120, 365126, 430945, G11B 724, G11B 726, G01D 1534
Patent
active
050797581
ABSTRACT:
Recordable/erasable optical storage media are disclosed. More particularly, it provides a method and apparatus for recording and erasing information on an optical storage medium. The medium of the present invention generally includes a rigid substrate and an active region or layer adjacent to the substrate. The active region is a single polymer layer that functions as both an expansion layer and a retention layer. Reflective and protective layers may or may not be present. Additionally, methods for writing and erasing on these media are described.
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Levy Stuart S.
Tandy Corporation
Wells Kenneth B.
LandOfFree
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