发明名称 Magneto-optical recording apparatus using multiple magnetic field strengths for recording different mark lengths
摘要 A recording method for recording information on a recording layer of a magneto optical recording medium by radiating a recording light beam onto the medium while applying a magnetic field in a recording direction to the medium. The method includes applying a magnetic field having a magnetic field strength H1 in the recording direction when recording a record mark having a mark length A on the recording layer, and applying a magnetic field have a magnetic field strength H2 in the recording direction when recording a record mark having a mark length B (B<> A) on the recording layer. Independent of the lengths of the magnetic domains recorded on the recording layer, the record information can be transferred to a reproducing layer making it possible to reproduce high density record information.
申请公布号 US6584044(B2) 申请公布日期 2003.06.24
申请号 US20020059192 申请日期 2002.01.31
申请人 HITACHI MAXELL LTD. 发明人 TANI MANABU;AWANO HIROYUKI;YOSHIHIRO MASAFUMI;SEKINE MASAKI
分类号 G11B11/105;(IPC1-7):G11B11/00 主分类号 G11B11/105
代理机构 代理人
主权项
地址
您可能感兴趣的专利