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    • 41. 发明授权
    • Optical data recording and reproducing apparatus
    • 光学数据记录和再现装置
    • US4546462A
    • 1985-10-08
    • US446007
    • 1982-12-01
    • Kenji KoishiTomio YoshidaIsao SatohShunji Ohara
    • Kenji KoishiTomio YoshidaIsao SatohShunji Ohara
    • G11B7/0045G11B7/09G11B19/04G11B20/18G11B27/30G11B27/36G11B15/02G11B27/00
    • G11B7/0948G11B19/04G11B20/18G11B27/3027G11B27/36G11B7/0045
    • An optical data recording and reproducing apparatus for recording digital data in a recording track on an optical recording disc. The apparatus includes a light illuminating unit for condensing an output light beam from a light source and for illuminating the disc, a recording-reproducing unit for recording and reproducing the digital data by a recording light beam and a reproducing light beam from the light illuminating unit, a dropout detecting and inspecting unit, and a recording-prohibited sector detecting unit to produce an output signal identifying a recording-prohibited sector where recording is prohibited responsive to an output signal from the dropout detecting and inspecting unit. The sector address of a recording-prohibited sector is recorded at least until recording of digital data in the recording track on the optical disc is begun. A comparator unit compares the sector address of the recording-prohibited sector with a sector address read continuously from the disc. The comparator generates a coincidence output signal which prohibits any output from the recording light beam, thus preventing any recording until the next sector on the disc is encountered.
    • 一种光学数据记录和再现装置,用于在光学记录盘上的记录轨道中记录数字数据。 该装置包括用于聚集来自光源的输出光束并用于照亮盘的光照射单元,用于通过记录光束记录和再现数字数据的记录再现单元和来自光照射单元的再现光束 一个压差检测和检查单元,以及一个记录禁止扇区检测单元,用于根据来自差错检测和检测单元的输出信号,产生一个识别禁止记录的记录禁止扇区的输出信号。 记录禁止扇区的扇区地址至少记录在光盘上的记录轨道中的数字数据的记录开始之前。 比较器单元将记录禁止扇区的扇区地址与从盘连续读取的扇区地址进行比较。 比较器产生一个重合输出信号,该信号禁止记录光束的任何输出,从而防止任何记录直到遇到盘上的下一扇区。
    • 43. 发明授权
    • Optical disk having an index mark
    • 具有索引标志的光盘
    • US5119363A
    • 1992-06-02
    • US331326
    • 1981-12-16
    • Isao SatohTomio YoshidaShunji OharaKenji Koishi
    • Isao SatohTomio YoshidaShunji OharaKenji Koishi
    • G11B7/007G11B7/013G11B17/00G11B19/28G11B23/42G11B27/10G11B27/19G11B27/24G11B27/30
    • G11B7/24085G11B17/005G11B19/28G11B23/42G11B27/105G11B27/19G11B27/24G11B27/3027G11B7/00745G11B2220/20G11B2220/2587
    • In an optical recording disk having groove-like guide tracks, a rotation index mark is provided to indicate a rotation starting point where the rotation index mark is constructed of a grooved-like phase structure. The rotation index mark may be formed in a track which is located separated from the information recording tracks, and may be detected optically without using a laser light beam. The rotation index mark is used to control the rotation of the disk as well as writing and reading operation of an optical disk recording/reproducing apparatus so that various information, such as video signals, can be accurately recorded and reproduced. In the case of recording digital signals, the guide tracks may be divided into a plurality of sector regions, and sector index marks corresponding to respective sector regions may also be formed together with the rotation index mark. Furthermore, an address index mark indicative of the position of track address region radially formed in the guide tracks may also be added.
    • 在具有槽状导轨的光记录盘中,设有旋转指示标记,以指示旋转指示标记由沟槽状相位结构构成的旋转起点。 旋转指示标记可以形成在与信息记录轨迹分离的轨道中,并且可以在不使用激光的情况下光学地检测。 旋转指示标记用于控制盘的旋转以及光盘记录/再现装置的写入和读取操作,使得可以准确地记录和再现诸如视频信号的各种信息。 在记录数字信号的情况下,引导轨道可以被划分为多个扇区区域,并且也可以与旋转指示标记一起形成与各个扇区区域对应的扇区索引标记。 此外,还可以添加表示在导轨中径向形成的轨道地址区域的位置的地址索引标记。
    • 46. 发明授权
    • Optical disk apparatus and method for setting control parameters
    • 光盘装置及设定控制参数的方法
    • US06952384B1
    • 2005-10-04
    • US09089901
    • 1998-06-03
    • Mamoru ShojiAtsushi NakamuraTakashi IshidaShunji Ohara
    • Mamoru ShojiAtsushi NakamuraTakashi IshidaShunji Ohara
    • G11B7/007G11B7/09G11B7/095G11B7/125G11B20/10G11B20/18
    • G11B7/126G11B7/00718G11B7/0945G11B7/0956G11B20/10009G11B20/1816
    • An optical disk apparatus performing either one of recording and reproduction of an optical disk in which groove-shaped groove tracks and land tracks present between the groove tracks are alternately connected to each other in a spiral shape, includes: a recording and reproduction unit for recording a signal in at least one continuous groove track and at least one continuous land track, and then reproducing the signal from the groove track and the land track; a detector for detecting a quality of the signal recorded and reproduced by the recording and reproduction unit; a control parameter setting unit for setting a control parameter related to at least one of the recording and the reproduction of the optical disk; and a controller for changing the control parameter set by the control parameter setting unit, repeating the recording and reproduction performed by the recording and reproduction unit and detection performed by the detector every time the control parameter is changed, and determining the control parameter based on the quality of the signal detected by the detector.
    • 执行光盘的记录和再现的光盘装置,其中存在于凹槽轨道之间的槽形凹槽轨道和纹脊轨迹彼此交替地以螺旋形状彼此连接,包括:用于记录的记录和再现单元 在至少一个连续凹槽轨道和至少一个连续的平台轨道中的信号,然后从凹槽轨道和陆地轨迹再现信号; 用于检测由记录和再现单元记录和再现的信号的质量的检测器; 控制参数设置单元,用于设置与光盘的记录和再现中的至少一个有关的控制参数; 以及控制器,用于改变由控制参数设置单元设置的控制参数,重复由记录和再现单元执行的记录和再现以及每次控制参数改变时由检测器执行的检测,以及基于 由检测器检测到的信号的质量。
    • 47. 发明授权
    • Optical disk and optical disk apparatus having a predetermined pattern
of marks on tracks such that a reproduced signal is caused to jitter
    • 光盘和光盘装置在轨道上具有预定的标记图案,使再生信号产生抖动
    • US5898654A
    • 1999-04-27
    • US931943
    • 1997-09-17
    • Toshiyuki ShimadaMamoru ShojiTakashi IshidaShunji Ohara
    • Toshiyuki ShimadaMamoru ShojiTakashi IshidaShunji Ohara
    • G11B7/0045G11B7/007G11B7/013G11B7/095
    • G11B7/0956G11B7/0045G11B7/00736G11B7/24085
    • An optical disk and optical disk apparatus used for accurately reproducing and recording information regardless of the physical distortions of disks and the electrical distortions of a tracking system. This is achieved in the present invention by providing an optical disk apparatus which takes into account the physical fluctuations, such as radial tilt and tangential tilt, and the electrical fluctuations, such as focus errors and tracking errors, and makes appropriate adjustments in the optical disk apparatus accordingly. These adjustments are made based upon relationships existing between a jittering amount of the reproduced signals and the above-mentioned fluctuations. Specifically, the present invention generates a predetermined pattern of marks which, when recorded, are arranged such that a signal reproduced from the predetermined pattern of marks is caused to jitter. Depending on the specific pattern of marks generated, the reproduced signal experiences an amount of jittering that is optimal so as to allow the present invention to make appropriate adjustments.
    • 用于准确再现和记录信息的光盘和光盘装置,而不管盘的物理失真和跟踪系统的电气失真。 这在本发明中通过提供一种光盘装置来实现,该光盘装置考虑了诸如径向倾斜和切向倾斜之类的物理波动,以及电波动,例如聚焦误差和跟踪误差,并且对光盘进行适当的调整 相应地设备。 这些调整是基于在再现信号的抖动量与上述波动之间存在的关系进行的。 具体地说,本发明产生一个预定的标记图案,它们在被记录时被布置成使得从预定标记图案再现的信号被引起抖动。 根据生成的标记的特定图案,再现的信号经历最佳的抖动量,从而允许本发明进行适当的调整。