发明授权
- 专利标题: Writable information recording and reproducing apparatus
- 专利标题(中): 可写信息记录和再现设备
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申请号: US13618173申请日: 2012-09-14
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公开(公告)号: US09064506B2公开(公告)日: 2015-06-23
- 发明人: Hideaki Okano , Kazuo Watabe , Chikara Tanioka , Akihito Ogawa , Takashi Usui , Kazuaki Doi
- 申请人: Hideaki Okano , Kazuo Watabe , Chikara Tanioka , Akihito Ogawa , Takashi Usui , Kazuaki Doi
- 申请人地址: JP Tokyo
- 专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 主分类号: G11B7/09
- IPC分类号: G11B7/09 ; G11B7/095 ; G11B7/00
摘要:
According to one embodiment, an information recording and reproducing apparatus including, a focus control module, an objective lens control module, a calculation module, and a tracking control module. If, detection the recording marks line, to focus a laser light of a second wavelength to the recording layer through an objective lens and to operation a recording layer tracking control using a tracking error signal taken out from a second reflected light and a laser light of a first wavelength to a track groove through the objective lens and to operation a guide layer tracking control to control the objective lens using a tracking error signal taken out from a first reflected light.
公开/授权文献
- US20130021892A1 INFORMATION RECORDING AND REPRODUCING APPARATUS 公开/授权日:2013-01-24