再颁专利
- 专利标题: Optical disk drive for discriminating types of optical disks
- 专利标题(中): 用于识别光盘类型的光盘驱动器
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申请号: US13044808申请日: 2006-01-19
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公开(公告)号: USRE43179E1公开(公告)日: 2012-02-14
- 发明人: Katsuya Watanabe , Hiroshige Ishibashi , Takashi Kishimoto , Rie Takahashi
- 申请人: Katsuya Watanabe , Hiroshige Ishibashi , Takashi Kishimoto , Rie Takahashi
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Renner, Otto, Boisselle & Sklar, LLP
- 优先权: JP2005-015080 20050124
- 国际申请: PCT/JP2006/300721 WO 20060119
- 国际公布: WO2006/077916 WO 20060727
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
After an optical disk drive according to the present invention has been loaded with an optical disk and before the operation of recognizing the type of the given disk is finished, the drive presumes one of multiple types of candidate optical disks, from/on which data is readable and writable using a light beam with the shortest wavelength among the candidate disks, to be the disk being driven by the motor now and gets the beam for the presumed type of disk radiated from a light source (Step (A)). Next, the drive gets the disk spun at a rotational velocity that realizes a linear velocity equal to or higher than a standardized normal velocity when data is read from the presumed type of disk (Step (B)). Thereafter, the drive starts a focus control in a situation where the spot of the beam being formed on the disk is moving on the disk at the linear velocity equal to or higher than the normal velocity (Step (C)). And then the drive performs the operation of recognizing the type of the disk by the light beam reflected from the disk under the focus control (Step (D)).