发明申请
- 专利标题: Method for determining a compensation value for tracking error signal
- 专利标题(中): 用于确定跟踪误差信号的补偿值的方法
-
申请号: US11153477申请日: 2005-06-16
-
公开(公告)号: US20050281150A1公开(公告)日: 2005-12-22
- 发明人: Shih-Chang Cheu , Chih-Ming Lai , Po-Chen Huang , Chih-Chung Chiao
- 申请人: Shih-Chang Cheu , Chih-Ming Lai , Po-Chen Huang , Chih-Chung Chiao
- 申请人地址: TW Taipei
- 专利权人: LITE-ON IT CORPORATION
- 当前专利权人: LITE-ON IT CORPORATION
- 当前专利权人地址: TW Taipei
- 优先权: TW93117388 20040616
- 主分类号: G11B7/00
- IPC分类号: G11B7/00 ; G11B7/09
摘要:
A method for determining a compensation value for tracking error signal in an optical disc drive is disclosed. The optical disc drive rotates a DVD to read data. The DVD has a first reflection layer and a second reflection layer. The first and the second reflection layers have respectively a number of circles of first and second tracks. First, read data on two first and two second tracks and accordingly generate two first compensation values for tracking error signal and two second compensation values for tracking error signal. Next, determine the third compensation value for tracking error signal corresponding to each of the other first tracks according to two of the first compensation values for tracking error signal. Then, determine the forth compensation value for tracking error signal corresponding to each of the other second tracks according to two of the second compensation values for tracking error signal.
公开/授权文献
信息查询
IPC分类: