公开(公告)号：US20050180283A1

公开(公告)日：2005-08-18

申请号：US11039805

申请日：2005-01-24

申请人： Tsutomu Ishimoto ,  Kimihiro Saito

发明人： Tsutomu Ishimoto ,  Kimihiro Saito

IPC分类号： G11B7/08 ,  G11B7/00 ,  G11B7/095 ,  G11B7/135

CPC分类号： G11B7/1387 ,  G11B7/0956 ,  G11B2007/13727

摘要： According to a preferred embodiment of the present invention, in order to provide a tilt control method and optical disc apparatus capable of exerting control to eliminate tilt and capable of carrying out an appropriate gap servo operation, a light gathering element positioned facing a disc recordable with a signal, and capable of gathering light irradiated from a light source as near-field light at a position where a distance to the disc constitutes a first distance is made to come into contact with the disc (step 2), and tilt is controlled with the light gathering element in contact with the disc (steps 3 to 7). As a result, tilting with respect to the disc is adjusted with the SIL in contact with the disc, tilting can be eliminated in a reliable manner, and a gap servo operation can be carried out in an appropriate manner.

摘要翻译： 根据本发明的优选实施例，为了提供能够进行控制以消除倾斜并能够执行适当的间隙伺服操作的倾斜控制方法和光盘装置，定位成面向可记录的盘的光收集元件 信号，并且能够将从光源照射的光收集在与盘的距离构成第一距离的位置处的近场光接触盘（步骤2），并且倾斜被控制 所述聚光元件与所述盘接触（步骤3至7）。 结果，通过SIL与盘接触来调节相对于盘的倾斜，可以以可靠的方式消除倾斜，并且可以以适当的方式执行间隙伺服操作。

公开(公告)号：US5577018A

公开(公告)日：1996-11-19

申请号：US122411

申请日：1993-09-21

申请人： Hideyoshi Horimai ,  Katsuhiro Seo ,  Kimihiro Saito ,  Kiyoshi Toyota

发明人： Hideyoshi Horimai ,  Katsuhiro Seo ,  Kimihiro Saito ,  Kiyoshi Toyota

IPC分类号： G02B5/04 ,  G02B5/30 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B11/105 ,  G11B11/10

CPC分类号： G11B7/131 ,  G02B5/04 ,  G02B5/3083 ,  G11B11/10543 ,  G11B7/123 ,  G11B7/1356 ,  G11B7/1359 ,  G11B7/1367

摘要： In an optical pickup apparatus, including a laser source (11) arranged along an optical axis (0-0'), a polarization beam splitter (14) and an objective lens (13), wherein light emitted from the laser source (11) is emitted on a recording plane (1a) of an optical-magnetical recording media (1) as a converged beam, light beams reflected from the recording media (1a) of the optical-magnetical recording media (1) are separated by said polarization beam splitter (14) to obtain a predetermined polarized light component, a phase change means, which changes a phase of light passing through one side of said optical axis (0-0') and a phase of light passing through another side of said optical axis (0-0') by a predetermined angle, such as 1/2 wavelength plate (15), a phase retardation type prism (39) and a combination optical rotation plate (52), is provided between the polarization beam splitter (14) and the objective lens (13), and, an optical detection element, which detects the light polarized by the polarization beam splitter (14), is provided at a side intersecting the phase change means of the polarization beam splitter (14).

摘要翻译： PCT No.PCT / JP93 / 00158 Sec。 371日期：1993年9月21日 102（e）日期1993年9月21日PCT提交1993年2月8日PCT公布。 公开号WO93 / 16469 日期：1993年8月19日在包括沿着光轴（0-0'）配置的激光源（11），偏振分束器（14）和物镜（13）的光拾取装置中， 激光源（11）作为会聚光束在光磁记录介质（1）的记录平面（1a）上发射，从光磁记录介质（1）的记录介质（1a）反射的光束是 由所述偏振分束器（14）分离以获得预定的偏振光分量;相位改变装置，其改变通过所述光轴（0-0'）的一侧的光的相位和通过另一个的光的相位 所述光轴（0-0'）的一侧具有预定角度，例如+ E，fra 1/2 + EE波片（15），相位延迟型棱镜（39）和组合旋转板（52） 设置在偏振光束分离器（14）和物镜（13）之间，以及光学检测元件 h检测由偏振分束器（14）偏振的光，设置在与偏振分束器（14）的相变装置相交的一侧。

公开(公告)号：US08953424B2

公开(公告)日：2015-02-10

申请号：US13485144

申请日：2012-05-31

申请人： Kimihiro Saito ,  Noriaki Nishi

发明人： Kimihiro Saito ,  Noriaki Nishi

IPC分类号： G11B7/00 ,  G11B7/09

CPC分类号： G11B7/0903

摘要： An optical-recording-medium driving apparatus includes: a light irradiating/receiving section configured to irradiate light on a medium so as to form a first side spot, a main spot, and a second side spot, and to receive reflection light from the individual spots; a first delay section configured to delay a light reception signal on the first side spot in accordance with a disposition interval between the first and the second side spots; a second delay section configured to delay a light reception signal on the main spot in accordance with a disposition interval between the main and second side spots; and a tracking-error-signal generation section configured to generate a tracking error signal on the basis of a correlation between delayed light reception signals on the first side spot and the main spot, and a correlation between the light reception signals on the second side spot and the main spot.

摘要翻译： 光记录介质驱动装置包括：光照射/接收部分，被配置为将光照射在介质上以形成第一侧光点，主光点和第二侧光斑，并且接收来自该个体的反射光 斑点 第一延迟部，被配置为根据第一和第二侧光斑之间的配置间隔延迟第一侧光点处的光接收信号; 第二延迟部，被配置为根据所述主侧和第二侧光斑之间的配置间隔延迟所述主光点上的光接收信号; 以及跟踪误差信号生成部，被配置为基于第一侧点的延迟光接收信号和主光点之间的相关性以及第二侧光点上的光接收信号之间的相关性来生成跟踪误差信号 和主要地点。

公开(公告)号：US08553514B2

公开(公告)日：2013-10-08

申请号：US13521976

申请日：2010-12-17

申请人： Kimihiro Saito ,  Seiji Kobayashi

发明人： Kimihiro Saito ,  Seiji Kobayashi

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/24044 ,  G11B7/24067

摘要： An optical recording medium includes: N recording layers (where N≧4); a number of kinds of layer intervals between the recording layers adjacent to each other being an integer M equal to or less than a minimum integer equal to or more than log2(N); and one or more AB blocks including four recording layers with a first layer interval A, a second layer interval B, and the first layer interval A formed in order in the one or more AB blocks. When the M as the number of kinds of layer intervals is M≧3, the optical recording medium has a part of a third layer interval C as a layer interval between a recording layer forming an AB block and a recording layer adjacent to the recording layer, the adjacent recording layer being included in other than the AB block including the recording layer.

摘要翻译： 光记录介质包括：N个记录层（N> = 4）; 彼此相邻的记录层之间的多个层间隔的数量是等于或小于log2（N）的最小整数的整数M; 以及一个或多个AB块，包括具有第一层间隔A，第二层间隔B和在一个或多个AB块中依次形成的第一层间隔A的四个记录层。 当作为层间隔的种类数量的M为M> = 3时，光记录介质具有作为形成AB块的记录层与与记录相邻的记录层之间的层间隔的第三层间隔C的一部分 层之外，相邻的记录层被包括在包括记录层的AB块以外。

公开(公告)号：US08395976B2

公开(公告)日：2013-03-12

申请号：US12272179

申请日：2008-11-17

申请人： Kimihiro Saito ,  Hirotaka Miyamoto ,  Toshihiro Horigome

发明人： Kimihiro Saito ,  Hirotaka Miyamoto ,  Toshihiro Horigome

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/00452 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/0938 ,  G11B2007/0013

摘要： An optical disc apparatus can make the focus of an information light beam converged by an objective lens agree with a target track of a target mark layer of an optical disc by appropriately predefining the distance between the focus of a servo light beam and that of the information light beam with regard to the direction of the thickness and a radial direction of the optical disc by means of the optical pickup of the apparatus and then operating for focus control and tracking control of the objective lens so as to make focus of the servo light beam converged by the objective lens agree with a reference track of a reference mark layer.

摘要翻译： 光盘装置可以通过适当地预先定义伺服光束的焦点与信息的焦点之间的距离，使由物镜会聚的信息光束的焦点与光盘的目标标记层的目标轨迹一致 通过装置的光学拾取器相对于厚度方向和光盘的径向方向的光束，然后操作用于物镜的聚焦控制和跟踪控制，以便使伺服光束的焦点 物镜会聚，与参考标记层的参考轨道一致。

公开(公告)号：US20130010583A1

公开(公告)日：2013-01-10

申请号：US13634953

申请日：2011-03-26

申请人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Norihiro Tanabe

发明人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Norihiro Tanabe

IPC分类号： G11B7/1374 ,  G11B7/1353

CPC分类号： G11B7/1376 ,  G11B7/0908 ,  G11B7/0938 ,  G11B7/0953 ,  G11B2007/0009

摘要： The present invention relates to an optical pick, an optical drive device, and a light irradiation method capable of suppressing a generated amount of shift Δx of a spot position.The optical pickup irradiates an optical recording medium through a common objective lens which irradiates a first light for use in information recording in or information reproduction from a recording layer and a second light different from the first light, the optical recording medium includes a reference surface having a reflection film in which a position director is formed in a spiral form or the like form, and the recording layer which is provided in a layer position different from the reference surface and in which a mark corresponding to irradiation of light is formed and hence information is recorded. The optical pickup adjusts a focusing position of the first light having passed through the objective lens by changing collimation of the first light entering the objective lens, thereby suppressing the shift Δx of a spot position between the first light and the second light which occurs due to the eccentricity of the optical recording medium. A magnification of the second light is within a magnification range of the first light.

摘要翻译： 光拾取器，光驱动装置和光照射方法技术领域本发明涉及能够抑制斑点位置的发生移位量Dgr×D的光拾取器，光驱动装置和光照射方法。 光拾取器通过照射用于信息记录的第一光或从记录层的信息再现的第一光和与第一光不同的第二光的公共物镜照射光记录介质，光记录介质包括具有 其中位置导向器形成为螺旋形状或类似形式的反射膜，以及设置在与参考表面不同的层位置并且其中形成有与光的照射相对应的标记的记录层，因此信息 被记录。 光学拾取器通过改变进入物镜的第一光的准直来调节已经通过物镜的第一光的聚焦位置，从而抑制发生在第一光和第二光之间的光点位置的偏移＆Dgr; x 由于光记录介质的偏心。 第二光的放大率在第一光的放大范围内。

公开(公告)号：US20120320721A1

公开(公告)日：2012-12-20

申请号：US13485144

申请日：2012-05-31

申请人： Kimihiro Saito ,  Noriaki Nishi

发明人： Kimihiro Saito ,  Noriaki Nishi

IPC分类号： G11B7/00

CPC分类号： G11B7/0903

摘要： An optical-recording-medium driving apparatus includes: a light irradiating/receiving section configured to irradiate light on a medium so as to form a first side spot, a main spot, and a second side spot, and to receive reflection light from the individual spots; a first delay section configured to delay a light reception signal on the first side spot in accordance with a disposition interval between the first and the second side spots; a second delay section configured to delay a light reception signal on the main spot in accordance with a disposition interval between the main and second side spots; and a tracking-error-signal generation section configured to generate a tracking error signal on the basis of a correlation between delayed light reception signals on the first side spot and the main spot, and a correlation between the light reception signals on the second side spot and the main spot.

摘要翻译： 光记录介质驱动装置包括：光照射/接收部分，被配置为将光照射在介质上以形成第一侧光点，主光点和第二侧光斑，并且接收来自该个体的反射光 斑点 第一延迟部，被配置为根据第一和第二侧光斑之间的配置间隔延迟第一侧光点处的光接收信号; 第二延迟部，被配置为根据所述主侧和第二侧光斑之间的配置间隔延迟所述主光点上的光接收信号; 以及跟踪误差信号生成部，被配置为基于第一侧点的延迟光接收信号和主光点之间的相关性以及第二侧光点上的光接收信号之间的相关性来生成跟踪误差信号 和主要地点。