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Method and device for recording data on optical recording medium

An optical recording medium, a technology for recording data, applied in optical recording/reproducing/erasing methods, optical recording heads, optical recording carriers, etc., and can solve problems such as increasing costs

Inactive Publication Date: 2003-09-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because a drive that can read all kinds of discs should realize various recording waveforms, which increases the cost

Method used

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  • Method and device for recording data on optical recording medium
  • Method and device for recording data on optical recording medium
  • Method and device for recording data on optical recording medium

Examples

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Embodiment Construction

[0043] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0044] Figure 2A and 2B is a block diagram of a recording apparatus according to a preferred embodiment of the present invention. see Figure 2A A recording device for forming marks or spaces on an optical recording medium 200 to record data includes a pickup unit 1 , a recording waveform generator 2 and a channel modulator 3 .

[0045] The channel modulator 3 modulates the input data into a sequence of channel bits. The recording waveform generator 2 is supplied with respect to the channel bit sequence and the cancellation power P b1 and P b2 information, and generate recording waveforms for recording channel bit sequences. The resulting recorded waveform includes an erased pattern with erased multipulses. The recording waveform will be described in detail later. The pickup unit 1 irradiates light to the optical recording medium 200 accordi...

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Abstract

A method and apparatus for recording data on an optical recording medium are provided. In the method of recording data on the optical recording medium, a mark or a space is formed using a recording waveform having an erase pattern including a predetermined pulse whose high level is higher than an erase power level and whose low level is lower than the erase power level. Thus, the shape of the mark can be prevented from being distorted and be improved, which results in an improvement in the recording / reproducing characteristics.

Description

technical field [0001] The present invention relates to a method and apparatus for recording data on an optical recording medium, in particular to a method and apparatus for recording digital data by forming marks on an optical disc. Background technique [0002] When recording data on an optical recording medium such as an optical disc, marks are formed in tracks formed in the optical disc. A mark is formed as a pit of a read-only disc such as CD-ROM, DVD-ROM or the like. Marks are formed on recordable discs such as CD-R / RW, DVD-R / RW / RAM, etc., when a phase change occurs in a phase change layer that is changed to crystalline or non-crystalline depending on temperature. Crystallized and covering the recording layer. [0003] Data recording methods include a mark edge recording method and a mark position recording method from the point of view of signal detection. In the mark position recording method, the amplitude of a detected radio frequency (RF) signal is changed from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/14G11B7/004G11B7/0045G11B7/0055G11B7/006G11B7/007G11B7/125G11B7/1267G11B20/08
CPCG11B7/1267G11B7/0055G11B7/0062G11B20/1426G11B7/004
Inventor 安龙津朴仁植李坰根杨苍镇大塚达宏尹斗燮金成洙高祯完
Owner SAMSUNG ELECTRONICS CO LTD
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