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    • 7. 发明授权
    • Optical disk drive for discriminating types of optical disks
    • 用于识别光盘类型的光盘驱动器
    • US07804753B2
    • 2010-09-28
    • US11575322
    • 2006-01-19
    • Katsuya WatanabeHiroshige IshibashiTakashi KishimotoRie Takahashi
    • Katsuya WatanabeHiroshige IshibashiTakashi KishimotoRie Takahashi
    • G11B7/00
    • G11B19/12G11B2007/0006
    • 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)).
    • 在根据本发明的光盘驱动器已经装载了光盘之后,并且在识别给定盘的类型的操作完成之前,驱动器假定多种类型的候选光盘中的一种从哪个数据是 使用候选盘之中具有最短波长的光束可读写可以由电机现在驱动,并获得用于从光源辐射的推测型光盘的光束(步骤(A))。 接下来,当从推定的盘类型读取数据时,驱动器以实现线速度等于或高于标准化正常速度的旋转速度获得盘(步骤(B))。 此后,驱动器开始聚焦控制,其中形成在光盘上的光束的斑点以等于或高于正常速度的线速度在盘上移动(步骤(C))。 然后,驱动器通过在聚焦控制下从盘反射的光束来执行识别盘的类型的操作(步骤(D))。
    • 9. 发明申请
    • Optical Disk Drive
    • 光盘驱动器
    • US20090022021A1
    • 2009-01-22
    • US11575322
    • 2006-01-19
    • Katsuya WatanabeHiroshige IshibashiTakashi KishimotoRie Takahashi
    • Katsuya WatanabeHiroshige IshibashiTakashi KishimotoRie Takahashi
    • G11B5/09
    • G11B19/12G11B2007/0006
    • 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)).
    • 在根据本发明的光盘驱动器已经装载了光盘之后,并且在识别给定盘的类型的操作完成之前,驱动器假定多种类型的候选光盘中的一种从哪个数据是 使用候选盘之中具有最短波长的光束可读写可以由电机现在驱动,并获得用于从光源辐射的推测型光盘的光束(步骤(A))。 接下来,当从推定的盘类型读取数据时,驱动器以实现线速度等于或高于标准化正常速度的旋转速度获得盘(步骤(B))。 此后,驱动器开始聚焦控制,其中形成在光盘上的光束的斑点以等于或高于正常速度的线速度在盘上移动(步骤(C))。 然后,驱动器通过在聚焦控制下从盘反射的光束来执行识别盘的类型的操作(步骤(D))。
    • 10. 发明申请
    • OPTICAL DISK DRIVE
    • 光盘驱动器
    • US20070070850A1
    • 2007-03-29
    • US11535518
    • 2006-09-27
    • Katsuya WATANABERie Takahashi
    • Katsuya WATANABERie Takahashi
    • G11B7/00
    • G11B19/12G11B2007/0006
    • The optical disk drive of the present invention can read data from multiple types of optical disks and includes: a motor for spinning a given optical disk; at least one light source for radiating light beams with multiple different wavelengths; at least one lens for converging each light beam onto the disk; a spherical aberration correcting section that can change the spherical aberration states of the beam; and a control section for controlling the operations of the motor, light source, lens and spherical aberration correcting section. The control section includes a disk type recognizing section that irradiates the disk with a light beam using the light source and the lens, thereby recognizing the type of the disk. The recognizing section performs the recognition by reference to first and second signal waveforms that have been generated based on the light beams reflected from the optical disk when the spherical aberration correcting section sets the spherical aberration states of the light beam to first and second states, respectively.
    • 本发明的光盘驱动器可以从多种类型的光盘读取数据,包括:用于使给定光盘旋转的电机; 用于辐射具有多个不同波长的光束的至少一个光源; 至少一个用于将每个光束会聚到所述盘上的透镜; 球面像差校正部,其能够改变所述光束的球面像差状态; 以及用于控制电动机,光源,透镜和球面像差校正部分的操作的控制部分。 控制部包括使用光源和透镜照射光束的盘型识别部,从而识别盘的种类。 当球面像差校正部分将光束的球面像差状态分别设定为第一和第二状态时,识别部分参考基于从光盘反射的光束产生的第一和第二信号波形进行识别 。