Optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method, and optical information recording medium

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	Optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method, and optical information recording medium
其他题名	Optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method, and optical information recording medium
	UEDA, DAISUKE
	2011-11-23
专利权人	SONY CORPORATION
公开日期	2011-11-23
授权国家	欧洲专利局
专利类型	发明申请
摘要	The present invention can record sub-data. An optical disk drive (20) controls a laser diode (51), which serves as a light source, according to recording main-data information (Da) based on main data, and thus forms a record mark (RM) along a virtual irradiation line (TL) in an optical disk (100). The optical disk drive (20) shifts a target depth in a focusing direction according to recording sub-data information (Db) based on sub-data, and thus forms the record mark (RM) with the center of the record mark deviated in the focusing direction from the irradiation line (TL).
其他摘要	本发明可以记录子数据。光盘驱动器（20）根据基于主数据的记录主数据信息（Da）控制用作光源的激光二极管（51），从而沿虚拟照射形成记录标记（RM）。光盘（100）中的线（TL）。光盘驱动器（20）根据基于子数据的记录子数据信息（Db）在聚焦方向上移动目标深度，从而形成记录标记（RM），其中记录标记的中心偏离从照射线（TL）聚焦方向。
主权项	An optical information recording apparatus comprising: an objective lens that concentrates information light and irradiates it to an optical information recording medium in which information is recorded in the form of a record mark by irradiating the information light, which is emitted from a light source and has an intensity equal to or larger than a predetermined intensity, to the optical information recording medium; a focus shift unit that shifts the focus of the information light in a focusing direction in which the objective lens recedes from or approaches to the optical information recording medium, and thus shifts the focus of the information light to a target depth to which the information light should be irradiated; a main-data recording unit that controls the light source according to information based on the main data, and thus forms the record mark along a virtual irradiation line in the optical information recording medium; and a sub-data recording unit that shifts the target depth in the focusing direction according to information based on the sub-data, and thus forms the record mark with the center thereof deviated in the focusing direction from the irradiation line.
申请日期	2009-04-22
专利号	EP2189979A4
专利状态	失效
申请号	EP2009735642
公开（公告）号	EP2189979A4
IPC 分类号	G11B7/0045 \| G11B7/007 \| G11B7/09 \| G11B7/135 \| G11B7/24
专利代理人	-
代理机构	EALEY, DOUGLAS RALPH
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/58423
专题	半导体激光器专利数据库
作者单位	SONY CORPORATION
推荐引用方式 GB/T 7714	UEDA, DAISUKE. Optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method, and optical information recording medium. EP2189979A4[P]. 2011-11-23.