公开(公告)号：US20120188864A1

公开(公告)日：2012-07-26

申请号：US13333539

申请日：2011-12-21

申请人： Kimihiro Saito ,  Yojiro Sumi ,  Seiji Kobayashi

发明人： Kimihiro Saito ,  Yojiro Sumi ,  Seiji Kobayashi

IPC分类号： G11B7/00 ,  G11B3/70

CPC分类号： G11B7/24038 ,  G11B7/24027 ,  G11B7/24044

摘要： A recording medium includes a photosensitive layer, a nonphotosensitive layer, and a recording layer formation region in which the photosensitive layer and the nonphotosensitive layer are laminated. The photosensitive layer includes a recording layer in which interference fringes formed in parallel with a recording medium surface are deleted or changed within a portion irradiated with focused light to record information or light reflected during irradiation of focused light is used to reproduce information.

摘要翻译： 记录介质包括感光层，非感光层和层叠感光层和非光敏层的记录层形成区域。 感光层包括记录层，其中与记录介质表面平行形成的干涉条纹在被聚焦光照射的部分中被删除或改变以记录信息或者在聚焦光的照射期间反射的光被用于再现信息。

公开(公告)号：US08107331B2

公开(公告)日：2012-01-31

申请号：US12336031

申请日：2008-12-16

申请人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Goro Fujita

发明人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Goro Fujita

IPC分类号： G11B7/00

CPC分类号： G11B7/00452 ,  G11B7/1378 ,  G11B2007/0013

摘要： An optical disk apparatus appropriately adjusts the optical paths of a reference light beam and information light beam in an optical path forming section of an optical pickup, condenses the reference light beam and information light beam using an objective lens, and performs position control of the objective lens in the focusing and tracking directions so as to focus the reference light beam onto a reference track in a target mark layer, thereby focusing the focal point of the information light beam condensed by the objective lens onto a target track TG in the target mark layer.

摘要翻译： 光盘装置适当地调整光学拾取器的光路形成部分中的参考光束和信息光束的光路，使用物镜聚集参考光束和信息光束，并执行目标的位置控制 以便将参考光束聚焦在目标标记层中的参考轨道上，从而将由物镜聚光的信息光的焦点聚焦到目标标记层中的目标轨道TG上 。

公开(公告)号：US08089838B2

公开(公告)日：2012-01-03

申请号：US12824494

申请日：2010-06-28

申请人： Kimihiro Saito

发明人： Kimihiro Saito

IPC分类号： G11B7/00

CPC分类号： G11B7/0953 ,  G11B7/00736 ,  G11B7/0903 ,  G11B7/0945 ,  G11B7/24038 ,  G11B7/26

摘要： An optical disc apparatus includes: a rotation section to rotate an optical disc including a spiral or concentric track with a predetermined track center, with a rotational center of the optical disc as the center; a light source to emit a light beam; an objective lens to collect the light beam on the optical disc; a lens drive section to drive the objective lens in a tracking direction; a light-receiving section to receive a reflected light beam and generate a light-receiving signal; a tracking error signal generation section to generate a first tracking error signal based on the light-receiving signal; an eccentric-state acquisition section to acquire an eccentric state of the track center; a correction section to generate a corrected tracking error signal; and a drive control section to drive the objective lens in the tracking direction by the lens drive section based on the corrected tracking error signal.

摘要翻译： 一种光盘装置，包括：以光盘的旋转中心为中心旋转包括具有预定轨道中心的螺旋或同心轨道的光盘的旋转部分; 用于发射光束的光源; 用于收集光盘上的光束的物镜; 透镜驱动部，沿跟踪方向驱动物镜; 光接收部分，用于接收反射光束并产生光接收信号; 跟踪误差信号产生部分，用于基于光接收信号产生第一跟踪误差信号; 偏心状态获取部，用于获取轨道中心的偏心状态; 校正部分，用于产生校正的跟踪误差信号; 以及驱动控制部，其基于所述校正后的跟踪误差信号，由所述透镜驱动部沿着所述跟踪方向驱动所述物镜。

公开(公告)号：US07995439B2

公开(公告)日：2011-08-09

申请号：US12423357

申请日：2009-04-14

申请人： Kimihiro Saito ,  Kunihiko Hayashi

发明人： Kimihiro Saito ,  Kunihiko Hayashi

IPC分类号： G11B7/00

CPC分类号： G11B7/133 ,  G11B7/00451 ,  G11B7/00452 ,  G11B7/005 ,  G11B7/0908 ,  G11B7/0938 ,  G11B7/131 ,  G11B7/1381 ,  G11B2007/0013

摘要： When an optical disc apparatus reproduces information from an optical disc, it converges a reading light beam emitted from an LED to substantially collimated light and projects it to the optical disc to cause it to be reflected by reflection surface thereof so as to make it become a reading reflected light beam. Then, the apparatus converges the reading reflected light beam by a mark layer selection lens, detects the reading reflected light beam passing through the target position by a detection region located at the confocal point of the target position and generates a detection signal. Subsequently, the apparatus recognizes the presence or absence of a recording mark based on the detection signal to reproduce the information. Thus, the apparatus can detect the state of the reading reflected light beam observed when it passes the target position and can recognize the presence or absence of a recording mark.

摘要翻译： 当光盘装置从光盘再现信息时，它将从LED发射的读取光束会聚到基本上准直的光并将其投射到光盘上，以使其被其反射表面反射，从而使其成为 读取反射光束。 然后，设备通过标记层选择透镜会聚读取反射光束，通过位于目标位置的共焦点处的检测区域检测通过目标位置的读取反射光束，并产生检测信号。 随后，该装置基于检测信号识别记录标记的存在或不存在，以再现该信息。 因此，该装置可以检测在通过目标位置时观察到的读取反射光束的状态，并且可以识别记录标记的存在或不存在。

公开(公告)号：US07961565B2

公开(公告)日：2011-06-14

申请号：US11848885

申请日：2007-08-31

申请人： Kimihiro Saito ,  Takao Kondo ,  Hirotaka Miyamoto

发明人： Kimihiro Saito ,  Takao Kondo ,  Hirotaka Miyamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/0013

摘要： An optical disk apparatus irradiates first and second lights, which are emitted from an identical light source, on a disk-like volumetric recording medium from both sides thereof with first and second object lenses corresponding to the first and second lights, respectively, such that the lights are focused in an identical focal point position and records a standing wave. The optical disk apparatus includes an aberration adding unit that adds complementary aberrations to the first and second lights made incident on the volumetric recording medium, respectively.

摘要翻译： 光盘装置将从相同的光源发射的第一和第二光从其两侧向分别对应于第一和第二光的第一和第二物镜照射在盘状体积记录介质上，使得 灯光集中在相同的焦点位置并记录驻波。 光盘装置包括像差添加单元，其分别对入射在体积记录介质上的第一和第二光分别添加互补像差。

公开(公告)号：US07936656B2

公开(公告)日：2011-05-03

申请号：US11973667

申请日：2007-10-09

申请人： Hirotaka Miyamoto ,  Kimihiro Saito

发明人： Hirotaka Miyamoto ,  Kimihiro Saito

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/0901 ,  G11B7/0909 ,  G11B7/0917 ,  G11B7/24 ,  G11B7/24044

摘要： An optical disc apparatus and a focus position control method can highly accurately record recording marks representing information on or reproduce such recording marks from an optical disc. A blue light beam is irradiated onto the target depth to be irradiated by driving an objective lens to focus a red light beam in a reflection/transmission film formed in the optical disc and displacing a movable lens, which is a focus moving section, of a relay lens. A blue light reflection region is formed as part of the reflection/transmission film and the position of the blue light reflection region where the red light focus and the blue light focus are aligned is defined as reference position. The movable lens is displaced by an arbitrarily selected quantity from the reference position according to the target depth.

摘要翻译： 光盘装置和聚焦位置控制方法可以高度准确地记录表示来自光盘的信息或再现这种记录标记的记录标记。 通过驱动物镜将蓝色光束照射到要照射的目标深度上，以将红色光束聚焦在形成在光盘中的反射/透射膜中，并将作为焦点移动部分的可移动透镜移位， 中继镜头 形成作为反射/透射膜的一部分的蓝色光反射区域，并且将红色光焦点和蓝色光焦点对准的蓝色光反射区域的位置定义为基准位置。 可移动透镜根据目标深度从参考位置移动任意选择的数量。

公开(公告)号：US20100238782A1

公开(公告)日：2010-09-23

申请号：US12734653

申请日：2009-10-01

申请人： Kimihiro Saito ,  Shiori Ogi ,  Goro Fujita

发明人： Kimihiro Saito ,  Shiori Ogi ,  Goro Fujita

IPC分类号： G11B7/135

CPC分类号： G11B7/0908 ,  B82Y10/00 ,  G11B7/00452 ,  G11B7/00455 ,  G11B7/126 ,  G11B7/1353 ,  G11B7/1359 ,  G11B7/1372 ,  G11B2007/00457

摘要： The recording accuracy of information on an optical disc is increased.An information optical system (150) of an optical disc apparatus (110) enables a semiconductor laser (3) to sequentially output specific peak light (LEP) and specific slope light (LES) as an information light beam (LM) and enables the correction lens (162) to change the divergence angle of the specific peak light (LEP) so that an absorption change area (RA) by the specific peak light (LEP) can be positioned at a far position in the recording layer (101). Thus, it is possible to form an energy concentration area (RE) by the specific slope light (LES) in the vicinity of a target position (QG), and the recording accuracy of information on the optical disc (100) can be increased.

摘要翻译： 信息在光盘上的记录精度提高。 光盘装置（110）的信息光学系统（150）能够使半导体激光器（3）顺序输出作为信息光束（LM）的特定峰值光（LEP）和特定倾斜光（LES），并且能够进行校正 透镜（162），以改变特定峰值光（LEP）的发散角，使得通过特定峰值光（LEP）的吸收变化区域（RA）可以位于记录层（101）中的远处。 因此，可以通过目标位置（QG）附近的特定斜率光（LES）形成能量集中区域（RE），并且可以提高光盘（100）上的信息的记录精度。

公开(公告)号：US20100195453A1

公开(公告)日：2010-08-05

申请号：US12452672

申请日：2009-05-25

申请人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Kunihiko Hayashi

发明人： Hirotaka Miyamoto ,  Kimihiro Saito ,  Kunihiko Hayashi

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/00452 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/08564 ,  G11B7/0938 ,  G11B7/1275 ,  G11B7/24038 ,  G11B7/24044 ,  G11B2007/13727

摘要： Disclosed is an optical disc device that is able to increase accuracy in reproducing information from an optical disc. The optical disc device 10 calculates a focus error signal SFE2 and a sum signal SS1 while reciprocating an objective lens 21 in a focus direction until a distance between a focal point FS and a focal point FM1 becomes close to the depth d of a target position PG at the time of a pull-in operation, and when a trigger signal ST1 generated on the basis of the sum signal SS1 is at low level, starts focus control on the basis of the focus error signal SFE2. Therefore, focus control can start in a state where the focus error signal SFE2 curves in an S shape with sufficient amplitude.

摘要翻译： 公开了能够提高从光盘再现信息的精度的光盘装置。 光盘装置10计算聚焦误差信号SFE2和和信号SS1，同时使物镜21在聚焦方向上往复运动，直到焦点FS与焦点FM1之间的距离变得接近目标位置PG的深度d 并且当基于和信号SS1生成的触发信号ST1处于低电平时，基于聚焦误差信号SFE2开始聚焦控制。 因此，聚焦误差信号SFE2在具有足够幅度的S形状下弯曲的状态下可以开始聚焦控制。

公开(公告)号：US07535808B2

公开(公告)日：2009-05-19

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： G11B5/58

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：US07420908B2

公开(公告)日：2008-09-02

申请号：US10480368

申请日：2003-04-04

申请人： Koichiro Kishima ,  Kimihiro Saito

发明人： Koichiro Kishima ,  Kimihiro Saito

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/00454 ,  G11B7/243 ,  G11B7/257 ,  G11B2007/24306 ,  G11B2007/25706 ,  G11B2007/25715

摘要： An optical recording medium including two or more recording layers which are capable of transmitting at a high transmittance recording light or reproducing light for performing recording/reproducing of a first recording layer (3) without having to make the thickness of a second recording film (5) positioned towards the side from which the recording light or the reproducing light enters. An optical recording medium including two or more recording layers, and which includes the first recording layer (3), the second recording layer (5) positioned further towards, with an intermediate layer (4) in between, the side from which the recording light or the reproducing light enters than is the first recording layer (3), and includes, between the above-mentioned intermediate layer (4) and the above-mentioned second recording layer (5), a dielectric layer (7) for increasing the transmittance for light passing through the above-mentioned second recording layer as the incident angle of the light becomes greater.

摘要翻译： 一种包括两个或更多个记录层的光记录介质，其能够以高透射率记录光或再现光进行传输，以进行第一记录层（3）的记录/再现，而不必使第二记录膜（5 ）位于记录光或再现光进入的一侧。 一种包括两个或更多个记录层的光记录介质，包括第一记录层（3），第二记录层（5）进一步位于其间具有中间层（4）的一侧，记录光 或再现光进入第一记录层（3），并且在上述中间层（4）和上述第二记录层（5）之间包括用于增加透射率的介电层（7） 对于通过上述第二记录层的光随着光的入射角变大。