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公开(公告)号:US08730773B2
公开(公告)日:2014-05-20
申请号:US11772479
申请日:2007-07-02
申请人: Chih Yuan Wang , Shih-Jung Chiu , Fu Jung Chen
发明人: Chih Yuan Wang , Shih-Jung Chiu , Fu Jung Chen
IPC分类号: G11B7/00
CPC分类号: G11B7/0946 , G11B7/08511 , G11B7/121
摘要: A method for controlling an OPU and an optical data access apparatus are provided. A signal generator is configured to generate a servo signal in response to data access. A comparator is configured to compare a threshold level and the servo signal, and generate a control level if a level of the servo signal against the threshold level when the OPU is controlled. An adjustment unit is configured to adjust a control signal according to the control level. The OPU is controlled according to the adjusted control signal.
摘要翻译: 提供了一种用于控制OPU和光学数据存取装置的方法。 信号发生器被配置为响应于数据访问而产生伺服信号。 比较器被配置为比较阈值电平和伺服信号,并且如果在控制OPU时针对阈值电平的伺服信号的电平,则产生控制电平。 调整单元被配置为根据控制级别调整控制信号。 OPU根据调整后的控制信号进行控制。