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    • 5. 发明申请
    • Method for determining reproducing light beam intensity and recording and reproducing apparatus
    • 用于确定再现光束强度的方法和记录和再现装置
    • US20050052956A1
    • 2005-03-10
    • US10895910
    • 2004-07-22
    • Hiroshi IdoHiroyuki AwanoManabu TaniSusumu Imai
    • Hiroshi IdoHiroyuki AwanoManabu TaniSusumu Imai
    • G11B11/00G11B11/105
    • G11B11/10515G11B11/10595
    • A means is provided to determine, accurately in a shorter period of time, an optimum reproducing laser beam intensity for reproducing user data or various management data on a magneto-optical recording medium based on the magnetic amplifying magneto-optical transfer system. In a method for determining the reproducing laser beam intensity of the present invention, a test reproduction area, which is formed of maze magnetic domains having random sizes not subjected to any recording process and provided on a magneto-optical recording medium based on Zero-Field MAMMOS, is irradiated with a laser beam before reproducing user information while changing the laser beam intensity to detect a magneto-optical signal. Subsequently, the reproducing laser beam intensity is determined for user information on the basis of the magneto-optical signal obtained from the test reproduction area.
    • 提供了一种装置,用于在更短的时间内精确地确定用于基于磁放大磁光转移系统在磁光记录介质上再现用户数据或各种管理数据的最佳再现激光束强度。 在本发明的再生激光强度的确定方法中,由具有不经历任何记录处理的随机大小的迷宫磁畴形成的测试再现区域,其设置在基于零场的磁光记录介质上 MAMMOS在再现用户信息之前用激光束照射,同时改变激光束强度以检测磁光信号。 随后,基于从测试再现区域获得的磁光信号,确定用户信息的再现激光束强度。