Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2011-06-28
2011-06-28
Chow, Van N (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S047530, C369S044110
Reexamination Certificate
active
07969855
ABSTRACT:
A read-only optical disc medium is disclosed. The disc medium includes: an information recording area in which information is recorded by means of an embossed pit array formed in a convexo-concave shape having a reflective layer deposited thereon; a test writing area which is used for test write recording of a mark formed by dissipating or decreasing the reflective layer; and an additional write area in which a record data string is formed of a mark by dissipating or decreasing the reflective layer under a recording condition decided in accordance with a result of test write recording performed in the test writing area.
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European Search Report Corresponding to 08001737.9-1232 dated Mar. 26, 2009.
Chow Van N
K&L Gates LLP
Sony Corporation
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