公开(公告)号：US07768745B2

公开(公告)日：2010-08-03

申请号：US11437181

申请日：2006-05-18

申请人： Takahisa Okada ,  Tomoki Hiramatsu ,  Kohji Takahashi ,  Katsuya Watanabe

发明人： Takahisa Okada ,  Tomoki Hiramatsu ,  Kohji Takahashi ,  Katsuya Watanabe

IPC分类号： G11B21/22 ,  G11B21/12

CPC分类号： G11B5/54

摘要： Embodiments of the invention prevent contact between a peripheral edge of a magnetic disk and a counter surface of a ramp when the magnetic disk is displaced. In one embodiment, a ramp is disposed near the peripheral side surface of a magnetic disk. The ramp has magnetic disk retainers each having slide surfaces and counter surfaces respectively facing the recording surfaces of the magnetic disk. Grooves or recesses are formed in the counter surfaces to define relief spaces. When the peripheral side surface of the magnetic disk is displaced toward the counter surface by shocks exerted on the magnetic disk drive, the relief space prevents the peripheral edge from coming into contact with the counter surface. Thus the amount of particles produced by the collision of the magnetic disk with the ramp can be reduced.

摘要翻译： 当磁盘移位时，本发明的实施例防止磁盘的周边边缘与斜面的对置表面之间的接触。 在一个实施例中，斜面设置在磁盘的周边侧表面附近。 斜坡具有各自具有分别面对磁盘的记录表面的滑动表面和相对表面的磁盘保持器。 沟槽或凹槽形成在相对表面中以限定浮雕空间。 当通过施加在磁盘驱动器上的冲击使磁盘的周边侧面朝向对置面移动时，释放空间防止周缘与对置面接触。 因此，可以减少由磁盘与斜坡碰撞产生的颗粒的量。

公开(公告)号：US07630113B2

公开(公告)日：2009-12-08

申请号：US11121961

申请日：2005-05-05

申请人： Ichiro Sase ,  Katsuya Watanabe

发明人： Ichiro Sase ,  Katsuya Watanabe

IPC分类号： G02B26/08

CPC分类号： G02B21/32 ,  G02B21/002

摘要： An observation field of view of a microscope can be moved without moving or changing an objective lens and without varying position or state of a sample. A microscope optical system has a mirror that changes the direction of the optical path by reflection. The mirror is located in the optical path between an objective lens of the microscope and an image to be observed. The mirror can be tilted to change the position of a reflecting surface of the mirror. Accordingly, the observation field of view is moved by tilting the mirror without changing a positional relation between the objective lens of the microscope and the sample.

摘要翻译： 可以移动显微镜的观察视场而不移动或改变物镜，而不改变样品的位置或状态。 显微镜光学系统具有通过反射改变光路的方向的反射镜。 镜子位于显微镜的物镜和待观察的图像之间的光路中。 镜子可以倾斜以改变反射镜的反射表面的位置。 因此，通过在不改变显微镜的物镜与样本之间的位置关系的情况下倾斜镜子来移动观察视场。

公开(公告)号：US20090274032A1

公开(公告)日：2009-11-05

申请号：US12095764

申请日：2007-01-30

申请人： Yuuichi Kuze ,  Katsuya Watanabe

发明人： Yuuichi Kuze ,  Katsuya Watanabe

IPC分类号： G11B7/135

CPC分类号： G11B7/08511 ,  G11B7/1275 ,  G11B2007/0013

摘要： This optical disc drive can read and/or write data from/on an optical disc 20 with multiple information layers including first and second information layers. The drive includes: a light source 3, 4 that emits the light beam; an objective lens 1; an actuator 2 for moving the objective lens perpendicularly to the information layers; a focus error generator 7 for generating a focus error signal representing how much the light beam has been converged on a target one of the information layers; and focus control means for forming a focal point of the light beam on the target information layer by driving the actuator in accordance with the focus error signal. According to the present invention, while a focus jump is being made to shift the focal point of the light beam from the first information layer of the optical disc 20 to the second information layer thereof by moving the objective lens 1, wavelengths and/or numerical apertures for the light beam are changeable while the objective lens 1 is moving.

摘要翻译： 该光盘驱动器可以从具有包括第一和第二信息层的多个信息层的光盘20上读出数据。 驱动器包括：发射光束的光源3,4; 物镜1; 用于使物镜垂直于信息层移动的致动器2; 聚焦误差发生器7，用于产生聚焦误差信号，该聚焦误差信号表示光束已经聚集在目标信息层上的多少; 以及聚焦控制装置，用于根据聚焦误差信号驱动致动器，在目标信息层上形成光束的焦点。 根据本发明，当通过移动物镜1进行聚焦跳跃以将光束的焦点从光盘20的第一信息层移动到第二信息层时，波长和/或数字 光束的孔径在物镜1移动时是可变的。

公开(公告)号：US07522485B2

公开(公告)日：2009-04-21

申请号：US11110833

申请日：2005-04-21

申请人： Tooru Maruyama ,  Katsuya Watanabe

发明人： Tooru Maruyama ,  Katsuya Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/1392 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0945 ,  G11B2007/0006

摘要： An optical disc device comprises a spherical or coma aberration correction unit to pre-correct spherical or coma aberration occurring in the light beam, a focus or tracking detection unit operable to detect a focus or tracking error signal, and an FE or TE amplitude adjustment unit operable to adjust the signal amplitude of the focus or tracking detection unit to a specific value after the amount of spherical or coma aberration has been matched to a specific value by the spherical or coma aberration correction unit.

摘要翻译： 光盘装置包括球面或彗形像差校正单元，用于预校正出现在光束中的球面或彗差;焦点或跟踪检测单元，可操作以检测聚焦或跟踪误差信号;以及FE或TE振幅调整单元 可操作以在通过球面或彗形像差校正单元将球形或彗形像差的量与特定值匹配之后，将焦点或跟踪检测单元的信号幅度调整到特定值。

公开(公告)号：US20090092026A1

公开(公告)日：2009-04-09

申请号：US12064463

申请日：2006-08-24

申请人： Katsuya Watanabe ,  Takaharu Ai

发明人： Katsuya Watanabe ,  Takaharu Ai

IPC分类号： G11B7/00

CPC分类号： G11B7/08505 ,  G11B7/0948 ,  G11B2007/0013

摘要： To prevent the focal point of a light beam from entering an unrecorded area, where no data has been written yet, when data is being read continuously from multiple storage layers.An optical disc drive can read data from an optical disc with at least first and second storage layers. The drive includes: a drive mechanism for rotating the disc; an optical pickup, which irradiates the disc in the drive mechanism with converged light and generates a read signal based on the light reflected from the disc; and a control section for controlling operations of the drive mechanism and the pickup, thereby shifting the focal point of the light. In reading data from the first and second layers continuously, the control section shifts the focal point in a first radial direction while data is read from the first layer and then moves the focal point to a location on the second layer before data starts to be read from the second layer. That location has been shifted from its previous one by a predetermined displacement in a second radial direction that is opposite to the first radial direction.

摘要翻译： 为了防止光束的焦点进入未记录数据的未记录区域，当从多个存储层连续读取数据时。 光盘驱动器可以利用至少第一和第二存储层从光盘读取数据。 驱动器包括：用于旋转盘的驱动机构; 光拾取器，其以会聚的光照射驱动机构中的盘，并且基于从盘反射的光产生读取信号; 以及控制部分，用于控制驱动机构和拾取器的操作，从而移动光的焦点。 在从第一层和第二层连续读取数据时，控制部分在第一半径方向移动焦点，同时从第一层读取数据，然后在数据开始读取之前将焦点移动到第二层上的位置 从第二层。 该位置已经从与之前的位置沿与第一径向方向相反的第二径向方向移位预定位移。

公开(公告)号：US20080217525A1

公开(公告)日：2008-09-11

申请号：US11515351

申请日：2006-09-01

申请人： Hitoshi Watarai ,  Hideaki Monjushiro ,  Katsuya Watanabe ,  Masayori Suwa ,  Mariko Arase

发明人： Hitoshi Watarai ,  Hideaki Monjushiro ,  Katsuya Watanabe ,  Masayori Suwa ,  Mariko Arase

IPC分类号： B01D59/44

CPC分类号： G01N27/72 ,  H01J49/26

摘要： A magnetic field gradient is generated in a space, and a microparticle is flied downward in the space, thereby applying a magnetic force from the magnetic field gradient onto the microparticle. Then, a velocity and an acceleration of the microparticle due to the magnetic force are measured, thereby measuring a mass of the microparticle on the measured velocity and a magnetic susceptibility of the microparticle.

摘要翻译： 在空间中产生磁场梯度，并且在空间中向下飞行微粒，从而将来自磁场梯度的磁力施加到微粒上。 然后，测量由于磁力引起的微粒的速度和加速度，由此测量微粒的测量速度的质量和微粒的磁化率。

公开(公告)号：US07276680B2

公开(公告)日：2007-10-02

申请号：US10596108

申请日：2004-11-25

申请人： Akira Yoshikawa ,  Katsuya Watanabe

发明人： Akira Yoshikawa ,  Katsuya Watanabe

IPC分类号： G02B27/40 ,  G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/121

摘要： An information processing apparatus includes: a converging section for converging light; a shifting section for shifting the focus of the light by moving the converging section perpendicularly to an information storage layer of a storage medium responsive to a drive signal; a position control section for generating a position control signal to move the converging section at variable velocities; a focus control section for generating a focus control signal based on a light amount signal representing reflected light such that the focus is located in a focus controllable range; a switching section for selectively outputting the position control or focus control signal; and a driving section for outputting a drive signal responsive to the output signal.

摘要翻译： 一种信息处理设备，包括：用于会聚光的会聚部分; 移动部分，用于通过根据驱动信号使收敛部分垂直于存储介质的信息存储层移动聚焦; 位置控制部分，用于产生位置控制信号，以可变速度移动会聚部分; 聚焦控制部分，用于基于表示反射光的光量信号产生聚焦控制信号，使焦点位于聚焦可控范围内; 切换部，用于选择性地输出位置控制或聚焦控制信号; 以及用于响应于输出信号输出驱动信号的驱动部分。

公开(公告)号：US07239595B2

公开(公告)日：2007-07-03

申请号：US10752810

申请日：2004-01-07

申请人： Yuuichi Kuze ,  Katsuya Watanabe ,  Kenji Fujiune

发明人： Yuuichi Kuze ,  Katsuya Watanabe ,  Kenji Fujiune

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/13927 ,  G11B2007/13727

摘要： A spherical aberration correction control device for controlling a spherical aberration correction section for correcting a spherical aberration of an optical beam irradiating an optical disc. The spherical aberration correction control device includes a spherical aberration control signal generation section for generating a spherical aberration control signal; and an output section for outputting the spherical aberration control signal to the spherical aberration correction section. A correction amount by which the spherical aberration is corrected is changed by the spherical aberration correction section in accordance with components of the spherical aberration control signal. The spherical aberration control signal generation section generates the spherical aberration control signal such that a sum of correction amounts corresponding to the respective components of the spherical aberration control signal becomes substantially zero with respect to a target correction amount.

摘要翻译： 一种球面像差校正控制装置，用于控制用于校正照射光盘的光束的球面像差的球面像差校正部分。 球面像差校正控制装置包括用于产生球面像差控制信号的球面像差控制信号产生部分; 以及用于将球面像差控制信号输出到球面像差校正部分的输出部分。 根据球面像差控制信号的分量，由球面像差校正部分改变校正球面像差的校正量。 球面像差控制信号生成部生成球面像差控制信号，使得对应于球面像差控制信号的各个分量的校正量的总和相对于目标校正量变得基本为零。

公开(公告)号：US20060268670A1

公开(公告)日：2006-11-30

申请号：US11420833

申请日：2006-05-30

申请人： Shinichi KIMURA ,  Hiroshi Ueda ,  Katsuya Watanabe

发明人： Shinichi KIMURA ,  Hiroshi Ueda ,  Katsuya Watanabe

IPC分类号： G11B7/24

CPC分类号： G11B20/1883 ,  G11B7/00736 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2007/0013 ,  G11B2220/20

摘要： A multi-layer information storage medium 600 includes: a data-reading surface; and eight recording layers 601 to 608 for recording data which is read out by using a blue-violet light beam. Each of the recording layers 601 to 608 has a user data area 610. A recording layer which is the most distant from the data-reading surface 601 includes a disk information area 26 and a defect management area 27 for recording management information concerning all of the recording layers 601 to 608.

摘要翻译： 多层信息存储介质600包括：数据读取面; 以及用于记录通过使用蓝紫色光束读出的数据的八个记录层601至608。 每个记录层601至608具有用户数据区610。 与数据读取表面601最远的记录层包括用于记录关于所有记录层601至608的管理信息的盘信息区26和缺陷管理区27。

公开(公告)号：US07075867B2

公开(公告)日：2006-07-11

申请号：US10502674

申请日：2003-01-28

申请人： Katsuya Watanabe ,  Masanobu Takahashi ,  Akihiro Hatsusegawa ,  Tatsuo Suzuki

发明人： Katsuya Watanabe ,  Masanobu Takahashi ,  Akihiro Hatsusegawa ,  Tatsuo Suzuki

IPC分类号： G11B15/52

CPC分类号： G11B20/1403 ,  G11B7/005 ,  G11B2007/0006

摘要： An optical disc controller for an optical disc drive playing optically a first information storage medium and a second information storage medium having a higher storage density than the first medium. The controller includes: a rotation control section for controlling a rotating mechanism rotating the media; an equalizer for removing first frequency range components from an RF playback signal, obtained by irradiating each media with light and detecting reflected light, and amplifying second frequency range components; and a phase locking section for generating a sync clock signal to do synchronization detection with a digital playback signal obtained by digitizing the output of the equalizer. The rotation control section rotates the media while controlling the rotating mechanism such that RF playback signals are obtained at first and second transfer rates. The maximum playback frequency of the RF playback signal obtained from the first medium at the first transfer rate is substantially equal to that of the RF playback signal obtained from the second medium at the second transfer rate.

摘要翻译： 一种用于光学驱动第一信息存储介质的光盘驱动器的光盘控制器和具有比第一介质更高的存储密度的第二信息存储介质。 控制器包括：旋转控制部分，用于控制旋转介质的旋转机构; 均衡器，用于从通过用光照射每个介质并检测反射光获得的RF重放信号中去除第一频率范围分量，以及放大第二频率范围分量; 以及相位锁定部分，用于产生同步时钟信号以通过数字化均衡器的输出而获得的数字播放信号进行同步检测。 旋转控制部在控制旋转机构的同时旋转介质，使得以第一和第二传送速率获得RF重放信号。 以第一传送速率从第一介质获得的RF重放信号的最大重放频率基本上等于以第二传送速率从第二媒体获得的RF重放信号的最大重放频率。