发明授权
- 专利标题: Optical disc apparatus and optical disc reproducing method
- 专利标题(中): 光盘装置和光盘再现方法
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申请号: US12785514申请日: 2010-05-24
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公开(公告)号: US08194523B2公开(公告)日: 2012-06-05
- 发明人: Manabu Shiozawa
- 申请人: Manabu Shiozawa
- 申请人地址: JP Tokyo
- 专利权人: Hitachi-LG Data Storage, Inc.
- 当前专利权人: Hitachi-LG Data Storage, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP2009-192721 20090824
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
An optical disc apparatus includes a light source for emitting laser light, a light source drive unit for driving said light source, an optical element for splitting the laser light into a plurality of light fluxes, an optical element drive unit for controlling the optical element, an element for focusing the laser light onto the optical disc, and a detection unit for detecting the laser light reflected by the optical disc. Reproduction of the optical disc is performed by switching effectiveness and ineffectiveness of a function of splitting the light flux of the optical element, and adjustment of an outgoing laser power is performed.