Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2007-07-03
2007-07-03
Wellington, Andrea (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S094000, C369S275100, C369S283000, C369S286000, C428S064100
Reexamination Certificate
active
10169462
ABSTRACT:
There are some cases that an accuracy is low for reading unique information identifying an individual from an optical disk which comprises a plurality of information layers.The optical disk according to the present invention is an optical disk which comprises a first information layer and a second information layer for holding information so that, by incident light, (1) the information will be reproduced or (2) the information will be recorded and reproduced. The optical disk comprises a BCA area which is formed in the first information layer and in which individual identification information uniquely given to the optical disk is recorded.
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Nishiuchi Ken'ichi
Sato Shuji
Matsushita Electric - Industrial Co., Ltd.
Ortiz-Criado Jorge L.
RatnerPrestia
Wellington Andrea
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