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31 条记录 (耗时 0.011 秒)

    Optical disk, optical recording/reproducing apparatus and optical recording/reproducing method
    2.
    发明公开
    Optical disk, optical recording/reproducing apparatus and optical recording/reproducing method 失效
    光盘驱动器，光学记录/再现设备和光记录/再现方法

    公开(公告)号：EP0999544A2

    公开(公告)日：2000-05-10

    申请号：EP99123442.8

    申请日：1996-02-09

    申请人： Hitachi, Ltd.

    发明人： Miyamoto, Harukazu ,  Minemura, Hiroyuki ,  Sugiyama, Hisataka

    IPC分类号： G11B7/09 ,  G11B7/007 ,  G11B11/105

    CPC分类号： G11B11/10565 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/24079 ,  G11B7/24085 ,  G11B7/26 ,  G11B11/10576 ,  G11B11/10578 ,  G11B11/10584 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2525

    摘要： In an optical disk recording medium having grooves (84) and lands (85) formed on a substrate and information recording areas formed in association with both the groove and the land, first prepit portions (833) representing VFO information and second prepit portions (834) representing address information are disposed on a virtual extensions of the boundaries between grooves (84) and lands (85), and the prepits are disposed to satisfy such requirements that the prepits are disposed on both sides of a virtual extension of the center line of a groove, that the prepits are disposed on both sides of a virtual extension of a center line of a land, that the prepits do not exist on both sides of a given position on the center line of the groove, and that the prepits do not exist on both sides of a given position on the center line of the land. When an optical spot scans a track, pits on either one side or the other are reproduced and crosstalk does not occur between adjacent tracks. Also claimed are an optical recording/reproducing apparatus and an optical recording/reproducing method in which the irradiation position (tracking) of an optical spot on such a medium is controlled on the basis of the amplitude of the VFO signal.

    摘要翻译： 在具有形成在与两个表示VFO信息和第2小坑部槽和脊，第一预制凹坑部（833）结合而形成一个基底和信息记录区的槽（84）和平台（85）的光盘记录介质（834 ）表示的地址信息被设置在虚拟边界的槽间（84），85）的扩展和土地（和预制凹坑被布置为满足搜索要求没有预凹坑上的中心线的假想延长的bothsides处理完毕 凹槽，DASS模预制凹坑被布置在一个国家的一个中心线的假想延长的bothsides，并预凹坑不上的槽的中心线上的给定位置的bothsides存在，并没有预凹坑不 存在于在纹的中心线上的给定位置的bothsides。 当光点扫描的轨道，在任一方或其他凹坑被重放和串音不相邻轨道之间发生。 所以要求保护的是在光学记录/再现装置和在其中的光点上求介质中的照射位置（跟踪）是VFO信号的幅度的基础上控制的光学记录/再现方法。

    Method and apparatus for optical recording and reproduction
    3.
    发明公开
    Method and apparatus for optical recording and reproduction 失效
    光学记录和再现的方法和装置

    公开(公告)号：EP0303936A3

    公开(公告)日：1990-11-28

    申请号：EP88112894.6

    申请日：1988-08-08

    申请人： HITACHI, LTD.

    发明人： Kaku, Toshimitsu ,  Shigematsu, Kazuo ,  Sugiyama, Hisataka ,  Maeda, Takeshi ,  Takasago, Masahiro

    IPC分类号： G11B7/09 ,  G11B7/095 ,  G11B7/08

    CPC分类号： G11B7/094

    摘要： Disclosed is an optical recording an reproducing apparatus comprising a light source (1) directing a light spot toward a recording medium (7), a detection system (11 - 14) detecting light reflected from the recording medium to derive an electrical signal from the reflected light, an information processing circuit (9) modulating the intensity of the light spot according to writing pulses to record information on the recording medium and using the electrical signal to reproduce information from the recording medium, and a tracking servo circuit (22, 23) carrying out tracking servo operation on the basis of the electrical signal and including an extracting circuit connected to a source of extracting pulses having a pulse width at least equal to the writing pulse width so that writing pulse parts contained in the electrical signal are extracted during recording information, whereby a track offset occurring during information recording can be minimized, and the stability of the tracking servo system can be improved.

    Optical information recording apparatus and optical recording medium
    5.
    发明公开
    Optical information recording apparatus and optical recording medium 失效
    Optische Informationsaufziechnungsvorrichtung et optisches Aufzeichnungsmedium

    公开(公告)号：EP1282118A3

    公开(公告)日：2005-10-19

    申请号：EP02023051.2

    申请日：1996-02-09

    申请人： Hitachi, Ltd.

    发明人： Miyamoto, Harukazu ,  Minemura, Hiroyuki ,  Sugiyama, Hisataka

    IPC分类号： G11B7/007 ,  G11B11/10 ,  G11B7/09 ,  G11B7/013

    CPC分类号： G11B11/10565 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/24079 ,  G11B7/24085 ,  G11B7/26 ,  G11B11/10576 ,  G11B11/10578 ,  G11B11/10584 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2525

    摘要： An optical recording medium is disclosed in which the tracks include groove portions and land portions alternately arranged in the radial direction, wherein a plurality of prepits including the address information prepits of first and second prepits portions are meanderingly arranged with respect to center lines of the groove and land portions; and wherein prepits among the plurality of prepits are arranged at a predetermined interval such that specific prepits present in the meanderingly arranged prepits are always reproduced when an optical spot having a predetermined spot diameter irradiated on the optical recording medium scans the information recording area in the circumferential direction.
    An optical information processing apparatus for such a medium is also disclosed. The apparatus has means to irradiate a light spot having a predetermined spot diameter such that one specific prepit among the prepits is always reproduced.

    摘要翻译： 在具有形成在基板上的沟槽（84）和焊盘（85）的光盘记录介质和与槽和焊盘两者相关联地形成的信息记录区域中，预凹坑（82）设置在 凹槽（84）和平台（85），所述预凹坑被设置成满足这样的要求：将预凹坑设置在凹槽的中心线的虚拟延伸部的两侧，将预凹坑设置在虚拟的两侧 延伸地面的中心线，在槽的中心线上的位置的两侧不存在预凹坑，并且在凹槽的中心线上的位置的两侧不存在预凹坑。

    Information recording medium and method and apparatus for recording and reproducing information using the same
    7.
    发明公开
    Information recording medium and method and apparatus for recording and reproducing information using the same 失效
    信息记录介质和该使用方法和装置，用于记录和再现信息

    公开(公告)号：EP0821350A3

    公开(公告)日：1998-09-09

    申请号：EP97111959.9

    申请日：1997-07-14

    申请人： HITACHI, LTD.

    发明人： Miyamoto, Harukazu ,  Suzuki, Yoshio ,  Suzuki, Motoyuki ,  Sugiyama, Hisataka ,  Minemura, Hiroyuki ,  Fushimi, Tetsuya ,  Tokushuku, Nobuhiro

    IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B27/30 ,  G11B27/19 ,  G11B19/20

    CPC分类号： G11B20/12 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/006 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/013 ,  G11B7/0938 ,  G11B7/24082 ,  G11B19/20 ,  G11B19/247 ,  G11B19/28 ,  G11B20/10009 ,  G11B27/19 ,  G11B27/24 ,  G11B27/28 ,  G11B27/3027

    摘要： A disk-like information recording medium (8) includes recording areas provided in both of a groove portion (3) and a land portion (4). The information recording medium is divided into groups of a plurality of areas, each track (3, 4) is divided into circular arc-shaped sectors (1) having the same central angle arranged to be radial in the radius direction, identification information (2) is provided at every sector, each track is divided into groups in such a manner that lengths of the circular arc-shaped sectors (1) become almost constant among the groups, and the groove portion and the land portion are wobbled in the radius direction of the information recording medium. When the groove portion information track (3) and the land portion information track (4) which are the recording portions are wobbled in the radius direction, position information can be reliably obtained from the recording portions, and hence recorded information can be accessed reliably. Also, an accuracy with which the rotation of the information recording medium is controlled can be raised, and it becomes possible to position recorded information accurately.

    摘要翻译： 一种盘形信息记录介质（8）包括在部分（4）在两个（3）和一个国家的一个槽部提供的记录区。 该信息记录介质被划分成的区域复数，每个磁迹组（3，4）被划分成具有布置在半径方向上，标识信息是径向的同一中心角的圆弧状扇区（1）（2 ）在每个扇区被提供，每个磁道被分成组在寻求的方式没有圆弧形扇区（1）成为各组之间几乎恒定，并且所述槽部和所述接地部的长度在半径方向上呈摆动 的信息记录介质。 当沟槽信息轨迹（3）和所述接地部的信息轨道（4），其是部分在半径方向上进行摆动的记录，位置信息可被可靠地从记录部分获得的，并且因此所记录的信息可被可靠地访问。 因此，在准确度与该信息记录介质被控制的旋转可以提高，并且可以以定位记录的信息准确地设定。

    Optical information recording apparatus and optical recording medium
    10.
    发明公开
    Optical information recording apparatus and optical recording medium 失效
    光学信息记录装置和光学记录介质

    公开(公告)号：EP1282118A2

    公开(公告)日：2003-02-05

    申请号：EP02023051.2

    申请日：1996-02-09

    申请人： Hitachi, Ltd.

    发明人： Miyamoto, Harukazu ,  Minemura, Hiroyuki ,  Sugiyama, Hisataka

    IPC分类号： G11B7/013 ,  G11B7/005

    CPC分类号： G11B11/10565 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/24079 ,  G11B7/24085 ,  G11B7/26 ,  G11B11/10576 ,  G11B11/10578 ,  G11B11/10584 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2525

    摘要： An optical recording medium is disclosed in which the tracks include groove portions and land portions alternately arranged in the radial direction,
    wherein a plurality of prepits including the address information prepits of first and second prepits portions are meanderingly arranged with respect to center lines of the groove and land portions; and
    wherein prepits among the plurality of prepits are arranged at a predetermined interval such that specific prepits present in the meanderingly arranged prepits are always reproduced when an optical spot having a predetermined spot diameter irradiated on the optical recording medium scans the information recording area in the circumferential direction.
    An optical information processing apparatus for such a medium is also disclosed. The apparatus has means to irradiate a light spot having a predetermined spot diameter such that one specific prepit among the prepits is always reproduced.

    摘要翻译： 公开了一种光学记录介质，其中轨道包括沿径向交替布置的凹槽部分和平台部分，其中包括第一和第二预置凹槽部分的地址信息预凹坑的多个预制凹槽相对于凹槽的中心线被曲折地布置 和陆地部分; 并且其中以预定的间隔排列多个预制凹坑中的预制凹坑，使得当具有预定光斑直径的光斑照射在光学记录介质上时，存在于弯曲排列的预制凹坑中的特定预制凹坑总是被再现，从而沿圆周扫描信息记录区域 方向。 还公开了用于这种媒体的光学信息处理设备。 该装置具有照射具有预定光斑直径的光斑的装置，以便总是再现预制
    件中的一个特定的预凹坑。