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Recording method, recorder and recording medium

A technology for recording media and recording methods, applied in the direction of optical recording/reproduction/erasing methods, data recording, optical recording heads, etc., capable of solving problems such as deterioration of recording characteristics

Inactive Publication Date: 2008-07-09
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fluctuation of the most suitable recording power will lead to the deterioration of the recording characteristics of the second layer such as image jitter and error rate.

Method used

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  • Recording method, recorder and recording medium
  • Recording method, recorder and recording medium
  • Recording method, recorder and recording medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Preferred embodiments for carrying out the invention are described. FIG. 1 is an explanatory diagram showing the structure of a multilayer recording medium 201 used in this embodiment. This multilayer recording medium 201 is a recording medium having a multilayer structure having a plurality of recording layers (in this example, a double-layer structure of the first layer 202 and the second layer 203) on the same recording surface, and can perform optical recording. Information recording and reproduction of optical disks, optical disks, etc.

[0055] In the multi-layer recording medium 201, the first layer 202 and the second layer 203 of the first layer 202 and the second layer 203 have data areas 202a, 203a for recording information, and on the inner peripheral side and the outer peripheral side, they are also provided with information for obtaining the optimum value when recording. Trial writing areas 202b, 202c, 203b, 203c of OPC with suitable laser power. The tria...

Embodiment 2

[0087] Other embodiments will be described. FIG. 8 is an explanatory diagram showing the structure of a multilayer recording medium 201 used in this embodiment. In FIG. 8, the same reference numerals as those in FIG. 1 are the same as those in the multilayer recording medium 201 in FIG. 1, and detailed description thereof will be omitted. The multilayer recording medium 201 of FIG. 8 is different from the multilayer recording medium of FIG. 1 in that the trial writing areas 202b and 203b, 202c and 203c are arranged on the multilayer recording medium 201 so as to overlap each other on the same recording surface. Thus, unlike the multilayer recording medium of FIG. 1 , there is no first layer portion 202d on the laser incident side of the second layer trial writing area 203b and a first layer portion 202e overlapping the same recording surface of the trial writing area 203c.

[0088] The hardware configuration of the recording device 101 for recording information on such a mult...

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Abstract

A method for recording information on a recording medium with an optimal recording power determined by trial writing in the trial writing area of the recording medium. A recorder and the recording medium are also disclosed. The recording medium is a multilayer recording medium having a plurality of recording layers on the same recording surface. A trial writing area is formed on each of the recording layers. When information is recorded on the second or subsequent recording layer counted from the light incident side, recording is performed at a part located on the same recording surface as the trial writing area on a recording layer located closer to the light incident side than the recording layer before trial writing is performed in the trial writing area of the second or subsequent recording layer.

Description

technical field [0001] The present invention relates to a recording method, a recording device and a recording medium for performing test writing in a test writing area of ​​a recording medium, obtaining an optimum recording power value, and recording information on the above-mentioned recording medium using the optimum recording power. Background technique [0002] For example, Japanese Patent Laid-Open No. 2003-22532 (hereinafter referred to as Patent Document 1) discloses a technology for the purpose of recording in the second layer and subsequent layers of a multilayer optical disc having a multilayer structure. When recording information on the recording layer, even if the amount of transmitted light changes due to the recording state of the recording layer closer to the light incident side than the above-mentioned recording layer, the laser power of the recording laser can be properly controlled to record information with good characteristics. . That is, the laser lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/0045G11B7/125G11B7/1267
Inventor 二宫正树松叶贵信
Owner RICOH KK