Information storage medium
AssigneeSamsung Electronics Co., Ltd.
InventorKyung-geun Lee
Life of this patent
Estimating the term…
Abstract
An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal power control areas in odd-numbered and even-numbered information storage layers viewed from a direction in which light is incident upon the information storage medium are disposed one on another to not directly face each other. An actually usable area of an optimal power control area in each of the information storage layers varies depending on use circumstances of each of the information storage layers. Therefore, when an OPC area of one information storage layer performs OPC, this OPC does not affect another information storage layer. Also, an area of each of the information storage layers can be efficiently used.
Claims9
A method for recording data on a storage medium, comprising:
- recording data on different storage layers of a storage medium, each of which including an optimal power control area for obtaining an optimal recording condition,
- wherein the optimal power control areas in odd-numbered and even-numbered storage layers are disposed within different radiuses of the storage medium and one of the odd-numbered and even-numbered storage layers includes a usable area for a predetermined purpose that faces the optimal power control area of the other storage layer.
A method of recording data on a storage medium comprising:
- determining an optimum recording power;
- and
- recording data on one of first and second storage layers of a storage medium based on the optimum recording power,
- wherein the first storage layer comprises a first optimal power control area and a first restricted use area, and a second storage layer comprises a second optimal power control area and a second restricted use area disposed such that the first optimal power control area is aligned with the second restricted use area and the second optimal power control area is aligned with the first restricted use area, and
- the optimal recording power is determined based on information in one of the first and second optimal power control areas.
Dependencies are inferred from the claim text.