Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-08-21
2007-08-21
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S053200
Reexamination Certificate
active
10485911
ABSTRACT:
A high-density multi-layer optical disc, a method for recording data thereon on a layer-by-layer basis, and a method for managing spare areas thereof. In a high-density multi-layer optical disc, having a plurality of recording layers formed thereon, such as a Blu-ray disc rewritable (BD-RE) dual layer, management information is recorded and managed appropriately to the multiple layers so that data can be recorded in a state where the recording layers are linked to each other or the recording layers are separated from each other. Inner and outer spare areas are separately assigned to each of the recording layers formed on the high-density multi-layer optical disc. The management information is recorded and managed appropriately to the multiple layers so that the data can be recorded in a state where the spare areas of the recording layers must be used together irrespective of the recording layers or used separately on the layer-by-layer basis. The recording layers can be effectively used and managed, and the spare areas separately assigned to the respective recording layers can be effectively used and managed.
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Chow Lixi
Harness & Dickey & Pierce P.L.C.
LG Electronics Inc.
Young Wayne
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