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    • 22. 发明公开
    • 마스터링 장치, 디스크 제조 방법, 디스크형 기록 매체,디스크 재생 장치, 디스크 재생 방법
    • 主设备,光盘制造方法,盘形记录介质,光盘再现设备和光盘再现方法
    • KR1020050088260A
    • 2005-09-05
    • KR1020047013256
    • 2003-12-26
    • 소니 주식회사
    • 고바야시세이지판진
    • G11B7/26G11B7/2407G11B7/007G11B20/10
    • G11B20/00086G11B7/0053G11B7/00736G11B7/24088G11B7/261G11B20/00405G11B20/00601G11B23/28
    • It is possible to stably and surely read second digital information as copy right protection information without being affected by a defect or pit lack existing on a disc-shaped recording medium. The second digital information is recorded by wobbling a pit string recorded as a first signal on the disc-shaped recording medium. For the second digital information, in the unit interval of the same synchronization signal contained in the first signal, a plurality of bits constituting the second digital information are assigned for recording. The plurality of bits constituting the second digital information thus recorded are read a plurality of times for each unit interval of the synchronization signal during reproduction and the information on the bits thus read is integrated. Thus, it becomes possible to integrate information on a plenty of wobbling pits over unit intervals of a plurality of synchronization signals and judge the value of the respective bits.
    • 可以稳定且可靠地将第二数字信息作为版权保护信息读取,而不受盘形记录介质上存在的缺陷或缺陷的影响。 通过在盘形记录介质上摆动作为第一信号记录的凹坑串来记录第二数字信息。 对于第二数字信息,在包含在第一信号中的相同同步信号的单位间隔中,构成第二数字信息的多个比特被分配用于记录。 在再现期间,对于同步信号的每个单位间隔,构成如此记录的第二数字信息的多个位被读取多次,并且关于这样读取的位的信息被积分。 因此,可以在多个同步信号的单位间隔上集成关于大量摆动凹坑的信息,并且判断各个位的值。