发明申请
US20100182889A1 Optical disk apparatus, optical pickup, preformatted signal generation method and program
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光盘装置，光学拾取器，预格式化信号产生方法和程序
- 专利标题： Optical disk apparatus, optical pickup, preformatted signal generation method and program
- 专利标题（中）： 光盘装置，光学拾取器，预格式化信号产生方法和程序
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申请号： US12657260申请日： 2010-01-15
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公开(公告)号： US20100182889A1公开(公告)日： 2010-07-22
- 发明人: Tetsuya Inoue , Fumiaki Nakano
- 申请人： Tetsuya Inoue , Fumiaki Nakano
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JPP2009-011213 20090121
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
There is provided an optical disk apparatus causing a hologram device to diffract a reflected light beam and causes each of reflected light beams of primary light in a longitudinal direction to generate received light signals by receiving the reflected light beams through receiving regions of a receiving unit before a preformatted signal being generated by a signal processing unit based on the received light signals. Therefore, the preformatted signal that excludes an influence of a stray light pattern by an interlayer stray light beam from a plurality of recording layers can be generated.
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