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    • 3. 发明申请
    • OPTICAL DISC DRIVE
    • 光盘驱动器
    • US20090109820A1
    • 2009-04-30
    • US12256675
    • 2008-10-23
    • Kenichi MORIKAWAHiroshige ISHIBASHITakahiro SATOYasuhiro TAIYoshiyuki HASHIMOTO
    • Kenichi MORIKAWAHiroshige ISHIBASHITakahiro SATOYasuhiro TAIYoshiyuki HASHIMOTO
    • G11B7/00
    • G11B7/0945G11B7/0956G11B7/13925G11B2007/0006
    • An optical disc drive according to the present invention can read data from any of multiple types of optical discs, of which the information storage layers are located at mutually different depths under their surface. When this drive is loaded with an optical disc, the servo controller of the drive changes a first type of drive signal to adjust a focus position by changing distances from the lens to the disc and/or a second type of drive signal to adjust tilt of the lens by changing the angles defined by the lens with respect to the disc a number of times, thereby changing settings to be determined by a combination of the focus position and the tilt. A signal quality rater measures multiple index values to rate the quality of a reflected light signal as the settings are changed. Then, the optical disc drive recognizes the type of the given optical disc based on those index values and reads data from the optical disc recognized.
    • 根据本发明的光盘驱动器可以从多种类型的光盘中的任何一种读取数据,其中信息存储层位于其表面下彼此不同的深度处。 当该驱动器装载有光盘时,驱动器的伺服控制器通过改变从透镜到盘的距离和/或第二类型的驱动信号来改变第一类型的驱动信号以调整对焦位置以调整 通过将透镜相对于盘定义的角度改变多次,从而改变由聚焦位置和倾斜的组合确定的设置。 信号质量评估者测量多个索引值以对设置改变时的反射光信号的质量进行评估。 然后,光盘驱动器基于这些索引值识别给定光盘的类型,并从所识别的光盘读取数据。
    • 8. 发明授权
    • Recording and reproducing device
    • 记录和再现设备
    • US6134206A
    • 2000-10-17
    • US107476
    • 1998-06-30
    • Hirofumi FurukawaYoshiyuki HashimotoToshio YoshimatsuYoshiaki Nakatsuka
    • Hirofumi FurukawaYoshiyuki HashimotoToshio YoshimatsuYoshiaki Nakatsuka
    • G11B17/04G11B33/04
    • G11B17/0545G11B17/057
    • The present invention has an object to provide a recording and reproducing device which can be used both for a cartridge disk (6) and for a cartridge-less disk (3) and reduced in size and weight, and which is capable of aligning a cartridge-less disk (3). A disk holder (14) adapted to set a cartridge disk (6) therein is provided on one and the other sides thereof with positioning means adapted to abut against a cartridge-less disk (3) set in the disk holder (14) to prevent it from moving to the innermost region R of the disk holder (14) and align it in a position corresponding to a rotational driving device (9), said positioning means being in the form of a CD stopper (20) and a step (30) formed in a shutter opener lever (19), thereby supporting and aligning the disk (3).
    • 本发明的目的是提供一种记录和再现装置,其可以用于盒盘(6)和用于无盒式盘(3)的尺寸和重量,并且能够对准盒 无盘(3)。 在其一侧和另一侧上设置有用于将盒盘(6)设置在其中的盘保持器(14),其具有适于抵靠设置在盘保持器(14)中的无盒式盘(3)的定位装置,以防止 它移动到盘保持器(14)的最内区域R并将其对准于与旋转驱动装置(9)相对应的位置,所述定位装置为CD止动器(20)和台阶(30)的形式 )形成在快门开启杆(19)中,从而支撑和对准盘(3)。