Invention Grant
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
- Patent Title: Focus optimization routine with sub-optimal jump settings in optical disc systems
- Patent Title (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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Application No.: US12376299Application Date: 2007-07-10
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Publication No.: US08339915B2Publication Date: 2012-12-25
- Inventor: Maarten Kuijper , Stefan Geusens , Sung-Yao Lin
- Applicant: Maarten Kuijper , Stefan Geusens , Sung-Yao Lin
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP06118433 20060804
- International Application: PCT/IB2007/052741 WO 20070710
- International Announcement: WO2008/015595 WO 20080207
- Main IPC: G11B5/55
- IPC: G11B5/55
Abstract:
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.
Public/Granted literature
- US20100157764A1 FOCUS OPTIMIZATION ROUTINE WITH SUB-OPTIMAL JUMP SETTINGS IN OPTICAL DISC SYSTEMS Public/Granted day:2010-06-24
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