Dynamic information storage or retrieval – Storage medium structure – Adjuncts or adapters
Patent
1995-05-15
1996-07-09
Nelms, David C.
Dynamic information storage or retrieval
Storage medium structure
Adjuncts or adapters
369 44380, 369 56, 369283, G11B 2100
Patent
active
055351905
ABSTRACT:
The invention is a recording system for recording and playing back information stored on an updatable optical storage medium. In the optical storage medium digital data is permanently present in the form of replicated features, and an updatable capability is provided by including an additional layer of substantially transparent magnetic recording material, The invention further includes a method for recording and playing back the information from the optical storage medium.
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Gustafson Donald E.
Moore Arthur R.
Griswold Gary L.
Gwin, Jr. H. Sanders
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Nelms David C.
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