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    • 2. 发明申请
    • OPTICAL DISC APPARATUS AND METHOD FOR REPRODUCING INFORMATION
    • 光盘设备和信息复制方法
    • US20080239924A1
    • 2008-10-02
    • US12046039
    • 2008-03-11
    • Goro FUJITAKimihiro SAITO
    • Goro FUJITAKimihiro SAITO
    • G11B7/00
    • G11B7/0065G11B7/0045G11B7/0938
    • An optical disc apparatus reproducing information on the basis of a standing wave recorded on a disc-like volume type recording medium is disclosed. The apparatus includes: first focus position adjusting means for adjusting the position of a focus on which a first light beam focuses inside a recording layer inside the volume type recording medium in the optical axis direction of the first light beam; second focus position adjusting means for adjusting the position of a focus on which a second light beam focuses inside the recording layer in the optical axis direction of the second light beam; controlling means for controlling the first focus position adjusting means and the second focus position adjusting means; and first and second detecting means for detecting the first and second reproduction light beams.
    • 公开了一种基于记录在盘状体积型记录介质上的驻波再现信息的光盘装置。 该装置包括:第一对焦位置调整装置,用于调整在第一光束的光轴方向上第一光束聚焦在体积型记录介质内的记录层内的聚焦位置; 第二对焦位置调整装置,用于调整第二光束在第二光束的光轴方向上在记录层内聚焦的焦点的位置; 用于控制第一对焦位置调整装置和第二对焦位置调整装置的控制装置; 以及用于检测第一和第二再现光束的第一和第二检测装置。
    • 5. 发明申请
    • OPTICAL DISC RECORDING DEVICE, DATA RECORDING METHOD, AND DATA RECORDING PROGRAM
    • 光盘记录设备,数据记录方法和数据记录程序
    • US20090285085A1
    • 2009-11-19
    • US12431283
    • 2009-04-28
    • Goro FUJITASeiji KOBAYASHIYuichiro IKEMOTOKoji ASHIZAKI
    • Goro FUJITASeiji KOBAYASHIYuichiro IKEMOTOKoji ASHIZAKI
    • G11B7/24
    • G11B7/0037G11B20/1217G11B20/1833G11B2020/1242G11B2020/1294G11B2220/2537
    • An optical disc recording device includes: an optical disc device to record optical recording data onto an optical disc; a recording data assigning unit to divide a recording region on the optical disc into multiple divisions, part as a data region, assign optical recording data thereto; a redundancy data calculating unit to calculate redundancy data for restoring recorded data; a redundancy data assigning unit to take divided regions other than the data region as a redundancy region, and assign the corresponding redundancy data thereto; a recording/playing device having a recording capacity greater than the data region; and a recording control unit configured to record optical recording data in the data region and also at least a part thereof in the recording/playing device, cause the recording/playing device to play the optical recording data recorded therein at the time of calculating redundancy data, and record calculated redundancy data in the redundancy region.
    • 光盘记录装置包括:光盘装置,用于将光记录数据记录在光盘上; 记录数据分配单元,用于将光盘上的记录区域划分为多个分区,作为数据区域的一部分,向其分配光学记录数据; 冗余数据计算单元,用于计算恢复记录数据的冗余数据; 冗余数据分配单元,将除了数据区域之外的分割区域作为冗余区域,并将相应的冗余数据分配给冗余数据; 具有大于数据区的记录容量的记录/播放装置; 以及记录控制单元,被配置为将数据区域中的光学记录数据及其至少一部分记录在记录/播放装置中,使记录/播放装置在计算冗余数据时播放记录在其中的光学记录数据 并记录冗余区域中的计算冗余数据。