发明名称 METHOD AND DEVICE FOR REPRODUCING OPTICAL INFORMATION
摘要 PROBLEM TO BE SOLVED: To provide a method and device for reproducing optical information capable of accurately reproducing recorded information by correcting the deviation of duty caused by the characteristics or the like of a medium and a recording/reproduction system and the deviation of a reproduction mark length dependent on a recording mark length. SOLUTION: The method is provided with a compensation means for compensating for the phase shift of a reproduced signal caused depending on the direction of magnetization of the recording mark and the phase shift of the reproduced signal caused depending on the length of the recording mark by reproducing the recording mark with an optical head to generate a reproduction signal. Thus, recorded data are accurately reproduced. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004087035(A) 申请公布日期 2004.03.18
申请号 JP20020249010 申请日期 2002.08.28
申请人 CANON INC 发明人 KATAYAMA TATSUSHI
分类号 G11B11/105;(IPC1-7):G11B11/105 主分类号 G11B11/105
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