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13 条记录 (耗时 0.028 秒)

    INFORMATION RECORDING AND REPRODUCING DEVICE
    1.
    发明申请
    INFORMATION RECORDING AND REPRODUCING DEVICE 审中-公开
    信息记录和复制设备

    公开(公告)号：US20100149951A1

    公开(公告)日：2010-06-17

    申请号：US12593552

    申请日：2008-03-13

    申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

    发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1353 ,  G11B7/0908 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

    摘要： An information recording/reproducing device includes a light source separately projecting laser light for recording or reproducing, an optical system leading the projected laser light to a recording medium, a diffracting element separating laser light into main- and beam sub-beams, an evanescent light generating element irradiating evanescent light in relation to the separated sub-beam to a track where no recording pit is formed, a sub-light receiving element for receiving return light in relation to the sub-beam, a moving element for moving the evanescent light generating element in relation to the sub-beam to a direction to change a gap with the recording surface, and a control element; for controlling the moving element so as to make the gap become a predetermined target value in accordance with a gap error signal containing a signal indicative of a light amount of the return light in relation to the received sub-beam.

    摘要翻译： 信息记录/再现装置包括分别投射用于记录或再现的激光的光源，将投射的激光导向记录介质的光学系统，将激光分离成主光束和光束子光束的衍射元件，ev逝光 发射元件相对于分离的子光束照射到不形成记录凹坑的轨道的ev逝光，用于接收与子光束相关的返回光的子光接收元件，用于移动产生渐逝光的移动元件 元件相对于子光束到改变与记录表面的间隙的方向，以及控制元件; 用于控制移动元件，以使得间隙根据包含相对于所接收的子光束的指示返回光的光量的信号的间隙误差信号而变为预定目标值。

    INFORMATION RECORDING AND REPRODUCING DEVICE
    2.
    发明申请
    INFORMATION RECORDING AND REPRODUCING DEVICE 审中-公开
    信息记录和复制设备

    公开(公告)号：US20100118684A1

    公开(公告)日：2010-05-13

    申请号：US12593439

    申请日：2008-03-13

    申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

    发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

    IPC分类号： G11B7/135

    CPC分类号： G11B7/0908 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

    摘要： An information recording and reproducing device diffracts by a diffracting means (14) to make laser light separated into a main beam and a sub-beam, irradiates evanescent light in relation to the main beam, by an evanescent light generating means (21), to a track where a recording pit provided on a recording surface of a recording medium is formed and also irradiates evanescent light in relation to the sub-beam to be separated to a track where no recording pit provided on the recording surface of the recording medium is formed. A moving means (210) moves the evanescent light generating means to a direction to change a gap with the recording surface. Further, a judging means (40) judges an uneven state of the recording pit formed on the recording medium, a signal generating means (3161) generates a gap error signal from a signal indicative of a return light amount in relation to the sub-beam or the main beam in accordance with the result, a control means (315) controls the moving means in accordance with a gap error signal so as to make the gap become a target value in response to the uneven state to be judged.

    摘要翻译： 信息记录和再现装置通过衍射装置（14）衍射，以使分离成主光束和子光束的激光相对于主光束相对于主光束照射消逝光，由ev逝光发生装置（21），以 形成记录介质的记录表面上的记录凹坑的轨道，并且还将相对于要分离的子光束的ev逝光照射到不形成记录介质的记录表面上的记录凹坑的轨道 。 移动装置（210）将瞬逝光发生装置移动到与记录表面改变间隙的方向。 此外，判断装置（40）判断在记录介质上形成的记录凹坑的不均匀状态，信号产生装置（3161）从表示相对于子光束的返回光量的信号产生间隙误差信号 或主光束，根据结果，控制装置（315）根据间隙误差信号控制移动装置，以使得间隙响应于待判断的不均匀状态而变为目标值。

    OPTICAL DISC
    3.
    发明申请
    OPTICAL DISC 审中-公开
    光盘

    公开(公告)号：US20100142361A1

    公开(公告)日：2010-06-10

    申请号：US12532837

    申请日：2007-03-30

    申请人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kazutoshi Kitano

    发明人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kazutoshi Kitano

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24085 ,  G11B7/14

    摘要： An optical disc (100) from which a plurality of pieces of information recorded along a track (9) by irradiating light that moves above the track relatively are reproduced in parallel. The optical disc has a disc substrate (1), and a recording layer (2) formed thereon. On the recording layer, a track is defined concentrically and two pit rows for carrying the plurality of pieces of information independently from each other are arranged along the track on the opposite sides thereof. At a specific position where the two pit rows are in a predetermined mutual relation and the plurality of pieces of information read out by irradiating light cannot be distinguished, at least one of two pit rows is shifted by a predetermined distance in the radial direction of the disc substrate by having the track as reference. Consequently, recording capacity can be increased relatively easily.

    摘要翻译： 通过并行地再现通过照射在轨道上方的光而沿着轨道（9）记录的多条信息的光盘（100）。 光盘具有盘基片（1）和形成在其上的记录层（2）。 在记录层上，轨道被同心地定义，并且彼此独立地携带多条信息的两个凹坑行沿着其相对侧的轨道排列。 在两个凹坑列处于预定的相互关系的特定位置处，并且不能区分通过照射光读出的多条信息，两个凹坑行中的至少一个在径向方向上偏移预定距离 通过使轨道作为参考来实现。 因此，可以相对容易地增加记录容量。