信息库 / 园艺 / 光记录介质、用于制造光记录介质的母盘、记录和再现装置以及记录和再现方法
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光记录介质、用于制造光记录介质的母盘、记录和再现装置以及记录和再现方法

Optical recording medium, master for optical recording medium manufacture, recording and reproducing apparatus, and recording and reproducing method

US-7298690-B2

用于高密度磁光盘的记录与再现。

专利摘要

使磁光盘具有更高的道密度并能够在其上执行稳定的跟踪伺服。在磁光盘上,形成第一凹槽Gv1、第二凹槽Gv2和第三凹槽Gv3,以便相邻布置。第一凹槽Gv1和第二凹槽Gv2是深凹槽,第三凹槽Gv3是浅凹槽。数据记录在这三个凹槽以及各个凹槽之间的三个台地构成的六个记录轨道上。通过光电检测器6的和信号(A+B+C+D)获得CTS信号,并通过光电检测器8的差信号(A+D)-(B+C)获得推挽信号。

Original abstractTo make a magneto-optical disk to have higher track density and enable stable tracking servo to be performed thereon. On an magneto-optical disk, a first groove Gv 1 , a second groove Gv 2 , and a third groove Gv 3 are formed so as to be adjacently arranged. The first groove Gv 1 and the second groove Gv 2 are deep grooves, and the third groove Gv 3 is a shallow groove. Data is recorded on six recording tracks of these three grooves and three lands between respective grooves. A CTS signal is obtained by a sum signal (A+B+C+D) of a photo-detector 6 , and a push-pull signal is obtained by a difference signal (A+D)−(B+C) of a photo-detector 8.

专利附图(8)

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来源状态与事件

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