发明授权
US08339915B2 Focus optimization routine with sub-optimal jump settings in optical disc systems
失效
聚焦优化程序在光盘系统中具有次优跳跃设置
- 专利标题: Focus optimization routine with sub-optimal jump settings in optical disc systems
- 专利标题(中): 聚焦优化程序在光盘系统中具有次优跳跃设置
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申请号: US12376299申请日: 2007-07-10
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公开(公告)号: US08339915B2公开(公告)日: 2012-12-25
- 发明人: Maarten Kuijper , Stefan Geusens , Sung-Yao Lin
- 申请人: Maarten Kuijper , Stefan Geusens , Sung-Yao Lin
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 优先权: EP06118433 20060804
- 国际申请: PCT/IB2007/052741 WO 20070710
- 国际公布: WO2008/015595 WO 20080207
- 主分类号: G11B5/55
- IPC分类号: G11B5/55
摘要:
A method and system for obtaining focus optimization in an optical disc system is disclosed. The focus offset of a recording unit is set to a first of a plurality of predetermined values. A HF quality value is measured and stored for the selected focus offset value of the recording unit. The focus offset is then set to a best-known focus offset value. Tracks on the optical media being read are then jumped. The above steps are then repeated for each of the plurality of predetermined focus offset values. The optimal focus setting is then determined from the stored HF quality measurements.
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