Laser power monitor circuit used in a magneto-optical disk device

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	Laser power monitor circuit used in a magneto-optical disk device
其他题名	Laser power monitor circuit used in a magneto-optical disk device
	HOSHINO, SHUNJI; INABA, NAOTO
	1995-08-01
专利权人	NIKON CORPORATION
公开日期	1995-08-01
授权国家	美国
专利类型	授权发明
摘要	A laser power monitor circuit for monitoring the power of a laser used in a magneto-optical disk device and other related devices. In order to provide marks in the recording medium, a write power of the laser is required, and in between the marks, the laser is to have a pedestal power. During recording on the magneto-optical disk, recording corrections are performed at the start of the pedestal power and write power of the laser to provide marks in the recording medium which are properly shaped. The laser power monitor circuit accurately monitors the power of the laser light on a recording medium and includes a reverse correction circuit to provide reverse correction of the recording corrected values among the monitored values of laser power to bring the laser to the appropriate write power or pedestal power.
其他摘要	一种激光功率监视电路，用于监视在磁光盘装置和其它相关装置中使用的激光的功率。为了在记录介质中提供标记，需要激光的写入功率，并且在标记之间，激光器具有基座功率。在磁光盘上记录期间，在基座电源的开始和激光器的写入功率下执行记录校正，以在记录介质中提供适当形状的标记。激光功率监视电路精确地监视激光在记录介质上的功率，并包括反向校正电路，以提供激光功率监视值中的记录校正值的反向校正，以使激光器达到适当的写入功率或基座。功率。
申请日期	1994-11-08
专利号	US5438582
专利状态	失效
申请号	US08/337378
公开（公告）号	US5438582
IPC 分类号	G11B7/125 \| H01S5/00 \| H01S5/0683 \| H01S3/00 \| G11B7/126 \| H01S5/042
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/33485
专题	半导体激光器专利数据库
作者单位	NIKON CORPORATION
推荐引用方式 GB/T 7714	HOSHINO, SHUNJI,INABA, NAOTO. Laser power monitor circuit used in a magneto-optical disk device. US5438582[P]. 1995-08-01.

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