公开(公告)号：US5369629A

公开(公告)日：1994-11-29

申请号：US890631

申请日：1992-05-28

申请人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

发明人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B13/04

CPC分类号： G11B11/10582 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521

摘要： A magneto-optical recording method for recording information in an overwrite mode in a magneto-optical recording medium by the application of a laser beam is disclosed. The magneto-optical recording medium includes a substrate, and at least two magnetic recording layers overlaid thereon, with an exchange force working at least between the two magnetic recording layers, and the Curie temperature of each of the two magnetic recording layers being substantially the same. The magneto-optical recording method includes the step of conducting overwriting information by changing the power of the laser beam to be applied to at least two different levels, one at which the magnetic recording layers are heated to a temperature near or higher than the Curie temperature, and the other at which the magnetic recording layers are heated to a temperature lower than the Curie temperature, while a magnetic field is applied to the magneto-optical recording medium in one direction, in accordance with signals to be recorded in the magneto-optical recording medium, and this recording method requires only one initialization by the application of the magnetic field, but does not require any further initialization thereafter.

摘要翻译： 公开了一种用于通过施加激光束在磁光记录介质中以重写模式记录信息的磁光记录方法。 磁光记录介质包括至少两个覆盖在其上的磁记录层，至少两个磁记录层之间具有至少两个磁记录层之间的交换力，并且两个磁记录层中的每一个的居里温度基本相同 。 磁光记录方法包括通过将要施加的激光束的功率改变为至少两个不同级别来进行重写信息的步骤，一个磁记录层被加热到接近或高于居里温度的温度 ，另一个磁记录层被加热到低于居里温度的温度，同时根据要记录在磁光学中的信号在一个方向上对磁光记录介质施加磁场 记录介质，并且该记录方法仅需要通过施加磁场进行一次初始化，而不需要其后进一步的初始化。