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    • 61. 发明申请
    • Wobble Information Recording Method, Information Recording Medium, and Recording and Reproduction Method and Apparatus Thereof
    • 摇摆信息记录方法,信息记录介质及其记录和再现方法及装置
    • US20070291628A1
    • 2007-12-20
    • US10577926
    • 2005-05-10
    • Shinya AbeTakashi Ishida
    • Shinya AbeTakashi Ishida
    • G11B7/007
    • G11B7/0053G11B7/24082G11B2007/0013
    • An optical disk and a method for identifying the optical disk are provided which make it possible to identify a recording system of the optical disk easily in a short time by a recording and reproduction apparatus when a groove-recording system and a land-recording system are both employed in one kind of optical disk, for, example, a BD-R. Specifically, the polarity upon reproducing the wobble information is made to be the same in both of the optical disk of groove-recording system and the optical disk of land-recording system. The recording system of the optical disk that shows the same wobble polarity irrespective of the recording system can be easily detected by finding a tracking polarity that can recognize the wobble information by changing the tracking polarity, whereby the start-up time of the recording and reproduction apparatus can be shortened.
    • 提供一种用于识别光盘的光盘和方法,其可以在凹槽记录系统和陆地记录系统是由记录和再现装置在短时间内容易地识别光盘的记录系统 两者都用于一种光盘,例如BD-R。 具体地说,在凹槽记录系统的光盘和陆地记录系统的光盘两者中,使摆动信息再现时的极性相同。 通过发现通过改变跟踪极性可以识别摆动信息的跟踪极性,可以容易地检测到与记录系统无关地显示相同摆动极性的光盘的记录系统,从而记录和再现的启动时间 装置可以缩短。
    • 65. 发明申请
    • Recording/reproduction apparatus, recording/ reproduction method, and controller
    • 记录/再现装置,记录/再现方法和控制器
    • US20070195667A1
    • 2007-08-23
    • US10567304
    • 2004-11-08
    • Takashi Ishida
    • Takashi Ishida
    • G11B7/00
    • G11B27/034G11B20/10G11B20/12
    • An apparatus for recording/reproducing data onto/from an information recording medium (101) is provided. The apparatus (1) comprises a section for reading first data from a first predetermined position in a data recording area of the medium, a section for determining whether or not the first data matches first type information indicating a type of a first predetermined file system, a section for executing a recording or reproduction process using the first predetermined file system when matching is positive, a section for reading second data from a second predetermined position of the data recording area when matching is negative, a section for determining whether or not the second data matches second type information indicating a type of a second predetermined file system different from that of the first predetermined file system, and a section for executing a recording or reproduction process using the second predetermined file system when matching is positive.
    • 提供了一种用于在信息记录介质(101)上记录/再现数据的设备。 装置(1)包括用于从媒体的数据记录区域中的第一预定位置读取第一数据的部分,用于确定第一数据是否匹配指示第一预定文件系统的类型的第一类型信息的部分, 当匹配时,用于执行使用第一预定文件系统的记录或再现处理的部分是正的,当匹配为负时用于从数据记录区的第二预定位置读取第二数据的部分,用于确定第二 数据匹配指示与第一预定文件系统不同的第二预定文件系统的类型的第二类型信息,以及当匹配时为正执行使用第二预定文件系统的记录或再现处理的部分。
    • 68. 发明申请
    • Optical disc drive for controlling reproduction of an optical disc including a plurality of data layers
    • 用于控制包括多个数据层的光盘的再现的光盘驱动器
    • US20070008837A1
    • 2007-01-11
    • US11522344
    • 2006-09-18
    • Atsushi NakamuraMamoru ShojiTakashi Ishida
    • Atsushi NakamuraMamoru ShojiTakashi Ishida
    • G11B7/00
    • G11B7/00745G11B7/00454G11B7/0901G11B7/0908G11B7/0956G11B7/126G11B7/1267G11B2007/0013
    • When recording or reading an optical disc having plural data recording layers, which data recording layer the light spot is focused on is detected to improve playback signal quality and signals written to the layer on which the light spot is focused are read more reliably. A convergent lens converges the laser beam on the optical disc, and a focus controller controls the focal point of the laser beam on the data layer. A tracking controller positions and tracks the focal point of the laser beam converged by the convergent lens on a track of the optical disc. A photodetector detects the reflected laser beam from the disc. A convergence detector then detects the convergence state of the laser beam emitted to the plural data recording layers. Based on output from the convergence detector, the laser driver is controlled to separately set beam power appropriately for each of the plural data layers of the disc during playback.
    • 当记录或读取具有多个数据记录层的光盘时,检测到该光斑聚焦的哪个数据记录层以提高重放信号质量,并且更可靠地读取写入到其上聚焦光点的层的信号。 会聚透镜将激光束会聚在光盘上,并且聚焦控制器控制激光束在数据层上的焦点。 跟踪控制器将由会聚透镜会聚的激光束的焦点位置并跟踪在光盘的轨道上。 光电检测器检测来自盘的反射激光束。 然后,会聚检测器检测发射到多个数据记录层的激光束的会聚状态。 基于会聚检测器的输出,激光驱动器被控制为在回放期间对盘的多个数据层中的每一个分别设置光束功率。