Optical disc drive and method of compensating the time information from th e optical disc,申请号AU19980087119-传众专利搜索

Optical disc drive and method of compensating the time information from th e optical disc

申请公布号：AU8711998(A)

申请号：AU19980087119

申请日期：1998.09.30

申请公布日期：1999.04.22

申请人：

MITSUMI ELECTRIC CO., LTD.

发明人：ITSUO MORIBE

分类号：G11B7/00;G11B7/005;G11B19/04;G11B19/06;G11B19/247;G11B20/10;G11B27/19;G11B27/24;G11B27/30

主分类号：G11B7/00

摘要：An optical disc drive for recording and playing back a recordable-type optical disc having a pre-groove which carries time information representing a position on the optical disc is provided with a device for compensating time information obtained from the optical disc. The time information compensating device acquires a first synchronizing signal and time information corresponding to the first synchronizing signal from the pre-groove of the optical disc; stores the time information in a memory provided in the optical disc drive; generates a second synchronizing signal which is synchronized with the first synchronizing signal in the optical disc drive; renews the time information stored in the memory at the timing of the cycle of the second synchronizing signal; and compensates the time information with the renewed time information stored in the memory in the case where the first synchronizing signal or the time information corresponding to the first synchronizing signal can not be acquired from the optical disc. The second synchronizing signal is generated by a clock provided in the optical disc drive.