The control of laser emission power for recording information on optical disc

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	The control of laser emission power for recording information on optical disc
其他题名	The control of laser emission power for recording information on optical disc
	KAZUTAKA, YAMAMOTO
	2005-03-02
专利权人	RICOH COMPANY, LTD.
公开日期	2005-03-02
授权国家	欧洲专利局
专利类型	发明申请
摘要	An optical disc apparatus for recording and reproducing information with respect to a rewritable optical disc includes a reproducing unit configured to reproduce information recorded on the optical disc by shining a laser beam having read power on the optical disc, and a recording unit configured to record information on the optical disc by alternately shining a laser beam having write power and a laser beam having bottom power lower than the write power on the optical disc at a portion where a mark is to be created, wherein the recording unit sets the bottom power to zero.
其他摘要	一种用于相对于可重写光盘记录和再现信息的光盘装置，包括：再现单元，被配置为通过在光盘上照射具有读取功率的激光束来再现记录在光盘上的信息;以及记录单元，被配置为记录信息。在光盘上通过在要创建标记的部分交替地发射具有写入功率的激光束和底部功率低于写入功率的激光束，其中记录单元将底部功率设置为零。
主权项	An optical disc apparatus for recording and reproducing information with respect to a rewritable optical disc, comprising a reproducing unit configured to reproduce information recorded on the optical disc by shining a laser beam having read power on the optical disc, and a recording unit configured to record information on the optical disc by alternately shining a laser beam having write power and a laser beam having bottom power lower than the write power on the optical disc at a portion where a mark is to be created, characterized in that said recording unit sets the bottom power to zero.
申请日期	2004-08-27
专利号	EP1511021A2
专利状态	失效
申请号	EP2004255206
公开（公告）号	EP1511021A2
IPC 分类号	G11B7/0045 \| G11B7/125 \| H01S5/06
专利代理人	-
代理机构	MOUNTENEY, SIMON JAMES
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/61138
专题	半导体激光器专利数据库
作者单位	RICOH COMPANY, LTD.
推荐引用方式 GB/T 7714	KAZUTAKA, YAMAMOTO. The control of laser emission power for recording information on optical disc. EP1511021A2[P]. 2005-03-02.

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EP1511021A2.PDF（579KB）	专利		开放获取	CC BY-NC-SA	请求全文