Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2005-04-12
2005-04-12
Dinh, Tan (Department: 2653)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S275300, C369S044260, C369S044420
Reexamination Certificate
active
06879557
ABSTRACT:
An optical storage medium includes a plurality of tracks and a plurality of information pits arranged in the tracks. The information pits are designed to produce reflection light upon irradiation of light. The information pits are disposed in a matrix layout so that the reflection light includes at least four diffracted rays. An information pit is offset from the predetermined reference point in the track direction and the tracking direction. Thus, the particular information pit carries information indicated by the offset position relative to the reference point.
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Dinh Tan
Fujitsu Limited
Greer Burns & Crain Ltd.
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