公开(公告)号：US4607358A

公开(公告)日：1986-08-19

申请号：US736125

申请日：1985-05-20

申请人： Takeshi Maeda ,  Motoo Uno ,  Kouji Muraoka ,  Masahiro Takasago ,  Yasumitsu Mizoguchi ,  Tokuya Kaneko

发明人： Takeshi Maeda ,  Motoo Uno ,  Kouji Muraoka ,  Masahiro Takasago ,  Yasumitsu Mizoguchi ,  Tokuya Kaneko

IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B7/09 ,  G11B17/00 ,  G11B7/00

CPC分类号： G11B7/08517 ,  G11B17/005 ,  G11B7/08529 ,  G11B7/08588 ,  G11B7/0901

摘要： In an optical memory apparatus wherein predetermined information is optically recorded on a recording medium along guide grooves previously formed and then played back; an optical memory apparatus wherein, using a tracking signal and a signal indicating the quantity of reflected light at the time at which a projected light beam passes through the guide grooves, the directions in which the light beam passes through the grooves and the number of the guide grooves to be passed are detected, a seek control is performed by adding and subtracting the numbers of the guide grooves to be passed, depending upon the directions of passage, and fine positioning is thereafter performed by the use of the tracking signal.

摘要翻译： 在光存储装置中，其中预先确定的信息沿预先形成的导向槽光记录在记录介质上，然后重放; 一种光存储装置，其中使用跟踪信号和指示投影光束穿过引导槽的时间处的反射光量的信号，光束通过凹槽的方向和 检测要通过的引导槽，通过根据通过方向加减去要通过的引导槽的数量来执行寻道控制，然后通过使用跟踪信号进行精细定位。