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    • 31. 发明授权
    • PLL circuit
    • PLL电路
    • US06441661B1
    • 2002-08-27
    • US09720658
    • 2000-12-28
    • Hiroshi AokiShiro SuzukiJunichi HorigomeTakayoshi ChibaShigeo Yamaguchi
    • Hiroshi AokiShiro SuzukiJunichi HorigomeTakayoshi ChibaShigeo Yamaguchi
    • H03L706
    • G11B20/1024
    • An A/D converter (30) samples an analog signal synchronously with a sampling clock from a VCO (70). These sampled values are stored in a shift register (410). A code judging section (420) detects the positive/negative sign pattern (time-series code pattern) of the sampled values held in storage elements (S0 to S5) of the shift register (410) and stores the sampled values in predetermined register (431 to 434) according to the detected sign pattern. According to this, a calculating section (430) determines the phase difference between the analog signal and the sampling clock. The phase difference is fed to a VCO (70) through a D/A converter (50) and a loop filter (60).
    • A / D转换器(30)与来自VCO(70)的采样时钟同步地采样模拟信号。 这些采样值被存储在移位寄存器(410)中。 代码判定部分(420)检测保持在移位寄存器(410)的存储元件(S0至S5)中的采样值的正/负符号模式(时间序列码模式),并将采样值存储在预定寄存器 431〜434)。 据此,计算部(430)确定模拟信号和采样时钟之间的相位差。 相位差通过D / A转换器(50)和环路滤波器(60)馈送到VCO(70)。
    • 33. 发明授权
    • Recording apparatus and recording method
    • 记录装置和记录方法
    • US08693298B2
    • 2014-04-08
    • US13282945
    • 2011-10-27
    • Junichi Horigome
    • Junichi Horigome
    • G11B5/55
    • G11B7/00736G11B7/0938G11B2007/0009
    • A recording apparatus includes: a light illumination and light sensing unit configured to illuminate an optical disc recording medium including a reference surface having address information recorded and a recording layer, with recording light and light for position control; a recording unit which performs recording on the recording layer; and a control unit which controls, when data instructed to be recorded is to be recorded from an instructed recording start address, the recording unit to perform recording of dummy data on an area adjacent to a front side at least from the recording start address over a range of equal to or greater than the maximum spot deviation amount between an illumination spot of the light for position control and an illumination spot of the recording light and to perform recording of the data instructed to be recorded in succession to a recorded area of the dummy data.
    • 一种记录装置包括:光照射和光感测单元,被配置为照亮包括具有记录的地址信息的参考表面的光盘记录介质和记录用于位置控制的光和光的记录层; 记录单元,其在记录层上执行记录; 以及控制单元,当从指示的记录开始地址记录指示要记录的数据时,控制单元至少从记录开始地址在与前方相邻的区域上执行伪数据的记录, 等于或大于用于位置控制的光的照明光斑和记录光的照明光点之间的最大光斑偏移量的范围,并且执行连续记录的数据的记录区域 数据。
    • 35. 发明授权
    • Recording device and recording method
    • 记录装置和记录方法
    • US08363522B2
    • 2013-01-29
    • US13151768
    • 2011-06-02
    • Tsutomu IshimotoJunichi Horigome
    • Tsutomu IshimotoJunichi Horigome
    • G11B20/00
    • G11B7/0065G11B7/0045
    • A recording device includes: a rotation driving unit that rotates an optical medium having a reference face and a recording layer, at a constant velocity; a light irradiating unit that irradiates the optical recording medium with first and second light through a common object lens; an infocus position adjusting unit that performs adjustment to focus; a light receiving unit that receives reflection light from the reference face; a reproducing clock generating unit that generates a reproducing clock on the basis of a light reception signal; a radial position detecting unit that detects the radial positional information on the basis of the light reception signal and the reproducing clock positional information; a frequency adjusting unit that changes a frequency of an input reference signal; and a recording unit that performs mark recording on the recording layer using the signal obtained by the frequency adjusting unit as a recording clock.
    • 记录装置包括:旋转驱动单元,其以恒定速度旋转具有参考面和记录层的光学介质; 光照射单元,其通过共用物镜照射具有第一和第二光的光记录介质; 聚焦位置调整单元,进行调焦以进行对焦; 光接收单元,其接收来自基准面的反射光; 再现时钟产生单元,其基于光接收信号产生再现时钟; 径向位置检测单元,其基于所述光接收信号和所述再现时钟位置信息来检测所述径向位置信息; 频率调整单元,其改变输入参考信号的频率; 以及记录单元,其使用由频率调整单元获得的信号作为记录时钟在记录层上执行标记记录。
    • 36. 发明申请
    • RECORDING APPARATUS
    • 录音设备
    • US20120113775A1
    • 2012-05-10
    • US13288473
    • 2011-11-03
    • Junichi Horigome
    • Junichi Horigome
    • G11B7/08
    • G11B7/0901G11B7/00781G11B7/094G11B7/0953G11B7/24044G11B7/2405G11B7/24085G11B2007/0013
    • A recording apparatus includes: a light-emitting/receiving unit which emits a recording beam, an ATS beam, and a position control beam toward an optical disc recording medium via a common object lens; a tracking mechanism which drives the object lens in a tracking direction parallel to a radial direction of the optical disc recording medium; a reference plane-side tracking error signal generation unit which generates a reference plane-side tracking error signal; a reference plane-side tracking servo signal generation unit which generates a reference plane-side tracking servo signal to cancel out a tracking error; a tracking driving unit which drives the tracking mechanism; an ATS-side tracking error signal generation unit which generates an ATS-side tracking error signal; an ATS control signal generation unit which generates an ATS control signal to cancel out a tracking error; and a signal providing unit which provides the ATS control signal to a tracking servo loop.
    • 记录装置包括:发光/接收单元,其通过公共物镜向光盘记录介质发射记录光束,ATS光束和位置控制光束; 跟踪机构,其沿与光盘记录介质的径向平行的跟踪方向驱动物镜; 参考平面侧跟踪误差信号生成单元,其生成基准面侧跟踪误差信号; 参考平面侧跟踪伺服信号产生单元,其生成参考平面侧跟踪伺服信号以消除跟踪误差; 跟踪驱动单元,其驱动跟踪机构; ATS侧跟踪误差信号生成单元,生成ATS侧跟踪误差信号; ATS控制信号生成单元,其生成ATS控制信号以消除跟踪误差; 以及向跟踪伺服环路提供ATS控制信号的信号提供单元。
    • 37. 发明授权
    • Light spot position control apparatus and light spot position control method
    • 光点位置控制装置和光点位置控制方法
    • US08098560B2
    • 2012-01-17
    • US12730371
    • 2010-03-24
    • Junichi Horigome
    • Junichi Horigome
    • G11B7/00
    • G11B7/083G11B7/0065G11B7/0901G11B7/0903G11B7/094G11B7/1353
    • Provided is a light-spot-position control apparatus including: a first-light-source; a second-light-source; a beam-splitter splitting a beam of the second-light-source into m beams; an optical-system allowing a first-beam of the first-light-source and the m beams to irradiate a disk-shaped recording-medium, where grooves and lands are alternately formed with an equal radial width to form the grooves in spiral/concentric shape through common-objective-lens, the optical-system allowing the three beams to irradiate the recording-medium so that an interval of m beam-spots is 1/m of track pitch; a tracking-control-mechanism tracking-controlling the beam by changing a relationship between the optical-axis and the recording-medium; a light-receiving unit individually receiving the m beams; an error-signal generator generating error-signals representing radial-position-errors of the spot-positions of the m beams with respect to the tracks based on received signals; an error-signal selector selecting at least one error-signal; and a servo-controller controlling the tracking-control-mechanism to tracking-servo the beam based on the error-signal.
    • 本发明提供一种光点位置控制装置,包括:第一光源; 第二光源; 分束器将第二光源的光束分成m束; 允许第一光源和m光束的第一光束照射盘形记录介质的光学系统,其中沟槽和平台以相等的径向宽度交替地形成,以形成螺旋/同心的槽 通过共同物镜透镜,光学系统允许三个光束照射记录介质,使得m个光束点的间隔为1 / m的轨道间距; 跟踪控制机构通过改变光轴和记录介质之间的关系来跟踪 - 控制光束; 分别接收m束的光接收单元; 误差信号发生器基于接收信号产生表示m个波束的光点位置相对于轨道的径向位置误差的误差信号; 选择至少一个误差信号的误差信号选择器; 以及伺服控制器,其控制跟踪控制机构以基于误差信号跟踪伺服光束。
    • 38. 发明申请
    • DISK-SHAPED RECORDING MEDIUM, OPTICAL SPOT POSITION CONTROL DEVICE, AND OPTICAL SPOT POSITION CONTROL METHOD
    • 磁盘记录介质,光点位置控制装置和光点位置控制方法
    • US20120002519A1
    • 2012-01-05
    • US13255545
    • 2010-03-09
    • Junichi Horigome
    • Junichi Horigome
    • G11B7/00G11B15/52G11B7/24
    • G11B7/00781G11B7/0065G11B7/083G11B7/0901G11B7/24044
    • In a case of performing recording/playing with an information recording layer with a first light irradiation, and controlling the recording/playing positions on the information recording layer by a second light irradiating as to a position control information recording layer provided separately from the information recording layer, corrections to shifts in recording positions and playing positions that occurs as a result of shifts in the optical axes of the first and second lights.A disc-shaped recording medium has multiple pit row phases wherein, the pit rows having a spacing between one round of pit formable positions that is limited to a predetermined first spacing are formed in a spiral shape or concentrically, and with pit rows arrayed in the radius direction, the spacing in the pit row forming direction of the pit formable positions is set to positions shifted by a predetermined second spacing. Therefore multiple pit rows can be arrayed in within the width of one conventional track, and a tracking servo can be used for the selected pit rows in accordance with the correction amount of the playing position, in which case corrections can be made with high precision that is narrower than one track width.
    • 在利用第一光照射进行信息记录层的记录/播放的情况下,通过与信息记录分开设置的位置控制信息记录层的第二光照射来控制信息记录层上的记录/播放位置 层,对由于第一和第二光的光轴的偏移而发生的记录位置和播放位置的偏移的校正。 盘状记录介质具有多个凹坑行相位,其中,限定为预定的第一间隔的一轮凹坑可形成位置之间的间隔的凹坑行形成为螺旋形状或同心圆状,并且凹坑行排列在 凹坑形成位置的凹坑排形成方向上的间隔被设定为以预定的第二间隔移动的位置。 因此,可以将多个凹坑列排列在一个传统轨迹的宽度内,并且可以根据播放位置的校正量对所选择的凹坑行使用跟踪伺服,在这种情况下可以高精度地进行校正, 比一个轨道宽度窄。