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    • 3. 发明申请
    • ERASABLE WORM OPTICAL DISK AND METHOD OF WRITING THERETO MULTIPLE TIMES
    • 可擦除的WORM光盘和写入多个时间的方法
    • WO00060593A1
    • 2000-10-12
    • PCT/US2000/007631
    • 2000-03-22
    • G11B7/0037G11B7/0055G11B7/006G11B11/105G11B19/12G11B20/12G11B27/32G06F3/06G11B7/00
    • G11B20/1252G11B7/0037G11B7/0055G11B7/006G11B11/10519G11B11/10595G11B19/12G11B27/329G11B2020/1232G11B2020/1267G11B2020/1285G11B2220/218
    • Apparatus and method for selectively enabling writing of data multiple times onto a write-once read-many optical disk by a host system, the disk having a disk type indicator, and each sector having a SWF field and a flag field and user data, wherein new data bits replace existing data bits in a one-for-one ratio without mapping. The apparatus comprises an optical disk drive having: a spindle motor rotating an optical disk; an optical assembly/laser generating a laser beam adapted to heat a minute region on the optical disk; a bias magnet affecting the polarity of the heated region; a write/read channel driving the optical assembly/laser and bias magnet; a write/read controller adapted to process a unique erase command and thereby controlling the optical assembly/laser and bias magnet to write every user data bit of a sector to zero in a one-for-one ratio without mapping; and a small computer system interface receiving write commands from a host system.
    • 用于选择性地使得能够由主机系统多次将数据写入一次写入许多光盘的装置和方法,该盘具有盘类型指示符,并且每个扇区具有SWF字段和标志字段以及用户数据,其中 新的数据位以一对一的比例替换现有的数据位而不进行映射。 该装置包括具有:旋转光盘的主轴电动机的光盘驱动器; 产生适于加热光盘上的微小区域的激光束的光学组件/激光器; 影响加热区域极性的偏置磁体; 驱动光学组件/激光器和偏置磁体的写入/读取通道; 写入/读取控制器,其适于处理唯一的擦除命令,从而控制光学组件/激光器和偏置磁体,以一对一的比例将扇区的每个用户数据位写入零,而不进行映射; 以及从主机系统接收写命令的小型计算机系统接口。