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Information storage medium, recording and reproducing device, and recording and reproducing method

A technology for information recording and media, applied in the direction of optical recording/reproduction/erasing methods, information storage, recording information storage, etc., can solve the problems of damaged areas, damage, etc., and achieve the effect of reducing impact and managing continuous defect replacement

Active Publication Date: 2015-08-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As tests are performed to find the optimum power level, power higher than normal recording power can be applied, potentially damaging areas of adjacent layers
In addition, regions of layers adjacent to the OPC region (specifically, lower layers along the direction of beam travel) may be damaged

Method used

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  • Information storage medium, recording and reproducing device, and recording and reproducing method
  • Information storage medium, recording and reproducing device, and recording and reproducing method
  • Information storage medium, recording and reproducing device, and recording and reproducing method

Examples

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Embodiment Construction

[0040] Hereinafter, the present invention will be described more fully with reference to exemplary embodiments of the invention.

[0041] In the multilayer information storage medium, each layer may have at least one optical power control (OPC) area allocated toward the inner circumference and in such a manner as not to overlap with the OPC areas of adjacent layers at the same radius.

[0042] An OPC area of ​​each layer may have at least one adjacent buffer area on that layer, and an OPC area between two OPC areas among a plurality of OPC areas corresponding to the number of layers may have multiple adjacent buffer zone.

[0043] The buffer area may have a size larger than a physical area corresponding to an interlayer eccentricity according to a disc standard. For example, if it is defined that the disc must be manufactured with an error of interlayer eccentricity smaller than a radius of 0.1 mm, the buffer area may have a size equal to or greater than a radius of 0.1 mm. ...

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Abstract

Provided is an information storage medium including a plurality of record layers. Each recording layer comprises at least one OPC(Optical Power Control) area. No OPC area of each recording layer overlaps with adjacent layers around a radius.

Description

technical field [0001] The following description relates to an information recording medium, recording / reproducing apparatus, and recording / reproducing method, and more particularly, to a high-capacity information recording medium including a plurality of recording layers. Background technique [0002] In order to realize a high-capacity information storage medium or to transmit information via a wired network or a wireless network, various methods such as recording data on a high-density or multi-layered information storage medium are being developed. Since the information storage medium has a multi-layer structure, each layer of the information storage medium generally has an area for disc recording / reproduction management. [0003] An example of an area used for disc recording / reproduction management is an Optical Power Control (OPC) area. The OPC area is a test area for calibrating power, and is used to find an appropriate power level for recording data on or reproducin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/12G11B7/007G11B7/004G11B7/1263G11B7/24038G11B7/24097
CPCG11B2007/0013G11B7/126
Inventor 黄盛凞黄仁吾高祯完李坰根
Owner SAMSUNG ELECTRONICS CO LTD
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