发明授权
- 专利标题: Tilt control method and optical disc apparatus
- 专利标题(中): 倾斜控制方法和光盘装置
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申请号: US11039805申请日: 2005-01-24
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公开(公告)号: US07535808B2公开(公告)日: 2009-05-19
- 发明人: Tsutomu Ishimoto , Kimihiro Saito
- 申请人: Tsutomu Ishimoto , Kimihiro Saito
- 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
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2004-035814 20040212; JP2004-292426 20041005
- 主分类号: G11B5/58
- IPC分类号: G11B5/58
摘要:
According to a preferred embodiment of the present invention, in order to provide a tilt control method and optical disc apparatus capable of exerting control to eliminate tilt and capable of carrying out an appropriate gap servo operation, a light gathering element positioned facing a disc recordable with a signal, and capable of gathering light irradiated from a light source as near-field light at a position where a distance to the disc constitutes a first distance is made to come into contact with the disc (step 2), and tilt is controlled with the light gathering element in contact with the disc (steps 3 to 7). As a result, tilting with respect to the disc is adjusted with the SIL in contact with the disc, tilting can be eliminated in a reliable manner, and a gap servo operation can be carried out in an appropriate manner.
公开/授权文献
- US20050180283A1 Tilt control method and optical disc apparatus 公开/授权日:2005-08-18