发明名称 Information recording method and information recording apparatus
摘要 An information recording method of recording information, in which laser light is applied to a recording medium while depending on predetermined information said laser light is modulated and the intensity of said light is controlled to form recording mark areas at which reflectivity of said recording medium changes, depending on the intensity of said applied light, wherein before starting data recording, said light is applied to said recording medium at predetermined light intensity, reflection light from said recording mark areas of said recording medium is received, the amount of said reflection light is detected, and a light intensity controlling reference value is calculated on the basis of the amount of said detected light, and during data recording, reflection light from said recording mark areas of said recording medium is received, the amount of said reflection light is detected, and a light intensity controlling detection value is calculated on the basis of the amount of said detected light, corrected light intensity is obtained from the difference between said light controlling intensity reference value and said light intensity controlling detection value, said light intensity controlling reference value is corrected depending on said corrected light intensity, and the intensity of said laser light is controlled so that said corrected light intensity controlling reference value substantially coincides with said light intensity controlling detection value.
申请公布号 US6950377(B2) 申请公布日期 2005.09.27
申请号 US20030362854 申请日期 2003.08.13
申请人 MATSUSHITA ELECTRIC INDUSTIAL CO., LTD. 发明人 MATSUURA TAKUMI;KAI TSUTOMU;IMURA MASAHARU
分类号 G11B7/0045;G11B7/125;(IPC1-7):G11B5/09 主分类号 G11B7/0045
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