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1. 发明申请

US20080175130A1 Optical disc apparatus 审中-公开
标题翻译：光盘装置
公开(公告)号：US20080175130A1
公开(公告)日：2008-07-24
申请号：US11987917
申请日：2007-12-05
申请人： Yuichi Kamioka , Noritaka Tanabe
发明人： Yuichi Kamioka , Noritaka Tanabe
IPC分类号： G11B7/135
CPC分类号： G11B7/094 , G11B7/0901 , G11B7/0909 , G11B7/0943 , G11B7/1275 , G11B7/131 , G11B2007/0006 , G11B2007/0013
摘要： An optical disc apparatus includes: a light source unit in which a plurality of light emitting points that emit lights having different wavelengths each other are formed in vicinity; a condenser lens which condenses the light emitted from the light source unit on a recording layer of the optical disc; a photo detecting portion which receives the light reflected by the recording layer of the optical disc, a plurality of photo receiving regions are formed on the photo detecting portion to receive the reflected light in separate positions according to the respective wavelengths which are emitted from the light source unit; and a calculation processing portion, if a first photo receiving region is a photo receiving region which is essentially used to obtain a servo signal at reproduction of an optical disc that has a plurality of recording layers and a second photo receiving region is a photo receiving region not needed to be used essentially to obtain the servo signal among the plurality of photo receiving regions, the calculation processing portion performs a prescribed calculating process using a signal that is detected in the first photo receiving region and a signal that is detected in the second photo receiving region to perform correction of the signal that is detected in the first photo receiving region at the reproduction of the optical disc that has a plurality of recording layers.
摘要翻译：光盘装置包括：光源单元，其中附近形成发射具有不同波长的光的多个发光点; 聚光透镜，其将从所述光源单元发射的光聚光在所述光盘的记录层上; 接收由光盘的记录层反射的光的光检测部分，在光检测部分上形成多个光接收区域，以根据从光发射的各个波长将分离的位置接收反射光源单位以及计算处理部，如果第一光接收区域是基本上用于在具有多个记录层的光盘的再现中获得伺服信号的光接收区域，并且第二光接收区域是光接收区域不需要基本上用于在多个光接收区域中获得伺服信号，计算处理部分使用在第一照片接收区域中检测到的信号和在第二照片中检测到的信号来执行规定的计算处理接收区域，以在具有多个记录层的光盘的再现中执行在第一光接收区域中检测到的信号的校正。

2. 发明申请

US20080055602A1 Optical pickup device 审中-公开
标题翻译：光学拾取装置
公开(公告)号：US20080055602A1
公开(公告)日：2008-03-06
申请号：US11897521
申请日：2007-08-30
申请人： Noritaka Tanabe , Yuichi Kamioka
发明人： Noritaka Tanabe , Yuichi Kamioka
IPC分类号： G01N21/55
CPC分类号： G11B7/13925 , G11B7/1369 , G11B2007/0006
摘要： The present invention provides an optical pickup device in which a liquid crystal device is easily attached, mass productivity is high, a movable actuator is light, excellent response can be obtained and, moreover, the liquid crystal device can be easily controlled. In an optical pickup device in which laser beams emitted from light sources pass through a collimator lens and an objective lens and are condensed to a surface of an optical disc, a liquid crystal device for correcting spherical aberration of an outgoing light from the objective lens is provided in front of the collimator lens when viewed from the light sources. The liquid crystal device has a single electrode formed in a wide range in each of a pair of substrates facing each other while sandwiching liquid crystal. A predetermined voltage is applied to the electrode to uniformly change the refractive index of the whole electrode region in the liquid crystal device and make air conversion length between the light sources and the collimator lens variable, thereby changing the degree of parallelization of outgoing light from the collimator lens and correcting spherical aberration.
摘要翻译：本发明提供了一种光拾取装置，其中液晶装置易于安装，批量生产率高，可动致动器轻，可以获得良好的响应，而且可以容易地控制液晶装置。在从光源发射的激光束通过准直透镜和物镜并被聚光到光盘的表面的光学拾取装置中，用于校正来自物镜的出射光的球面像差的液晶装置是设置在从光源观察时的准直透镜的前方。液晶装置具有在夹着液晶的同时彼此面对的一对基板中的宽范围内形成的单个电极。向电极施加预定的电压以均匀地改变液晶装置中的整个电极区域的折射率，并且使光源和准直透镜之间的空气转换长度可变，从而改变来自光源的出射光的平行度准直透镜和校正球面像差。

3. 发明申请

US20080239928A1 OPTICAL PICKUP 审中-公开
公开(公告)号：US20080239928A1
公开(公告)日：2008-10-02
申请号：US12055025
申请日：2008-03-25
申请人： Yuichi Kamioka , Kazuhiro Takahashi , Kenji Nagashima , Noritaka Tanabe , Tatsuya Ito
发明人： Yuichi Kamioka , Kazuhiro Takahashi , Kenji Nagashima , Noritaka Tanabe , Tatsuya Ito
IPC分类号： G11B7/135
CPC分类号： G11B7/1395 , G11B7/1275 , G11B7/1362 , G11B7/13922 , G11B2007/0006
摘要： An objective lens corresponding to a BD beam light, and an objective lens corresponding to a DVD/CD beam light are arranged parallel to an optical disc. One rising mirror is arranged in a tilted manner on a side opposite to the optical disc of the objective lenses. A first film for reflecting the BD beam light emitted from a laser diode and making the beam light enter the objective lens and transmitting the DVD/CD beam light emitted from a laser diode is arranged on one of the parallel surfaces of a transparent substrate of the rising mirror. A second film for reflecting the DVD/CD beam light transmitted through the first film and the transparent substrate and making the beam light enter the objective lens is arranged on the other surface. An incident optical axis to each objective lens of the BD beam light and the DVD/CD beam light is branched with the rising mirror.
摘要翻译：对应于BD光束的物镜和与DVD / CD光束光相对应的物镜平行于光盘布置。一个上升的镜子倾斜地配置在与物镜的光盘相对的一侧上。用于反射从激光二极管发射的BD光束并使光束进入物镜并将从激光二极管发射的DVD / CD光束透射的第一胶片布置在其中的一个平行表面上，上升的镜子。用于反射透过第一膜和透明基板并使光束进入物镜的DVD / CD光束光的第二膜布置在另一表面上。 BD光束的每个物镜的入射光轴和DVD / CD光束的光被上升的镜子分支。

4. 发明授权

US06339579B1 Semiconductor laser diode driving device and driving method 有权
标题翻译：半导体激光二极管驱动装置及其驱动方法
公开(公告)号：US06339579B1
公开(公告)日：2002-01-15
申请号：US09287338
申请日：1999-04-07
申请人： Yuichi Kamioka , Kenji Koishi , Yoshiyuki Miyabata , Naoyuki Nakamura , Kenichi Tatehara , Ikuo Hidaka , Kiyoshi Nakamori
发明人： Yuichi Kamioka , Kenji Koishi , Yoshiyuki Miyabata , Naoyuki Nakamura , Kenichi Tatehara , Ikuo Hidaka , Kiyoshi Nakamori
IPC分类号： G11B700
CPC分类号： G11B7/126 , H01S5/042 , H01S5/0683 , H01S5/0687
摘要： In an optical disc apparatus, a semiconductor SLD driving device is mounted on an optical pickup in order to realize a high speed switching of drive current for a semiconductor laser diode (SLD), necessary for recording data. The SLD is placed. within 5 cm from the SLD driving device. The driving device becomes a heat source due to driving current of the SLD, and increases a temperature of the optical pickup. Since the temperature rises proportionally to power consumption, power saving is required. A voltage supplied to the driving device is controlled to be a minimum level necessary for keeping the driving device still working on basic functions. The SLD driving device is mounted to the optical pickup, and this driving device handles N pieces of input signals for setting semiconductor laser power and N pieces of switch-timing-input-signals for selecting respective input signals. A supplied voltage is controlled so that a voltage supplied to the output section of the driving device is a minimum value necessary for keeping the output section still operating. A power source is placed outside of the pickup.
摘要翻译：在光盘装置中，半导体SLD驱动装置安装在光学拾取器上，以实现用于记录数据所需的用于半导体激光二极管（SLD）的驱动电流的高速切换。放置SLD。距离SLD驱动装置5厘米以内。驱动装置由于SLD的驱动电流而成为热源，并且提高了光学拾取器的温度。由于温度与功耗成比例上升，因此需要省电。被提供给驱动装置的电压被控制为使驱动装置保持基本功能所必需的最低水平。 SLD驱动装置安装在光拾取器上，该驱动装置处理N条输入信号以设置半导体激光功率，并且N条开关定时输入信号用于选择各个输入信号。控制供电电压，使得提供给驱动装置的输出部分的电压是保持输出部分仍然工作所需的最小值。电源放置在拾音器外面。

5. 发明授权

US5850378A Method and apparatus for recording data on an optical disk and or groove 失效
标题翻译：用于在光盘和/或凹槽上记录数据的方法和装置
公开(公告)号：US5850378A
公开(公告)日：1998-12-15
申请号：US554515
申请日：1995-11-07
申请人： Jun-ichi Ninamino , Shigeru Furumiya , Kenji Koishi , Yuichi Kamioka
发明人： Jun-ichi Ninamino , Shigeru Furumiya , Kenji Koishi , Yuichi Kamioka
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/125 , G11B7/14 , G11B20/10 , G11B27/36
CPC分类号： G11B7/126 , G11B20/10 , G11B7/0045 , G11B7/00454 , G11B7/005 , G11B7/00718 , G11B7/14 , G11B2020/1087
摘要： According to the present invention, an optical disk recording method for recording data on an optical disk including a land and a groove by forming a mark representing the data on the optical disk by irradiating a light beam onto the optical disk is provided. In this method, conditions for irradiating the light beam are varied depending upon whether a position at which the mark representing the data is formed on the land or on the groove so that a size of the mark formed on the land is equal to a size of the mark formed on the groove.
摘要翻译：根据本发明，提供了一种光盘记录方法，用于通过将光束照射到光盘上形成表示光盘上的数据的标记来在包括平台和凹槽的光盘上记录数据。在这种方法中，照射光束的条件根据在地面上或槽上是否形成表示数据的标记的位置而变化，使得在地面上形成的标记的尺寸等于在凹槽上形成的标记。

6. 发明授权

US07881166B2 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US07881166B2
公开(公告)日：2011-02-01
申请号：US11904296
申请日：2007-09-26
申请人： Yuichi Kamioka
发明人： Yuichi Kamioka
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1376
摘要： In an optical pickup device including light sources for emitting laser light, an objective lens for collecting the laser light emitted from the light sources on a disc surface of an optical disc, a light receiving unit for receiving the reflected light reflected by the disc surface, a collimator lens for correcting spherical aberration of the exit light from the objective lens, a lens driving unit for moving the collimator lens in an optical axis direction, and a control unit for controlling the operation of the lens driving unit based on the output of the light receiving unit, the astigmatism of the exit light from the objective lens is corrected by tilting the collimator lens by a predetermined angle by the lens driving unit.
摘要翻译：在包括用于发射激光的光源的光学拾取装置中，用于收集从光盘的光盘发射的激光在光盘的盘表面上的物镜的光接收单元，用于接收由盘表面反射的反射光的光接收单元，用于校正来自物镜的出射光的球面像差的准直透镜，用于沿光轴方向移动准直透镜的透镜驱动单元，以及用于基于所述透镜驱动单元的输出来控制透镜驱动单元的操作的控制单元光接收单元，通过透镜驱动单元将准直透镜倾斜预定角度来校正来自物镜的出射光的像散。

7. 发明授权

US06930968B2 Semiconductor laser driving apparatus with filter to attenuate enhanced frequency component and optical disk apparatus including the same 失效
标题翻译：具有用于衰减增强型频率分量的滤波器的半导体激光驱动装置和包括其的光盘装置
公开(公告)号：US06930968B2
公开(公告)日：2005-08-16
申请号：US09811033
申请日：2001-03-16
申请人： Yuichi Kamioka , Toshiya Akagi , Yoshiyuki Miyabata , Yuichi Takahashi
发明人： Yuichi Kamioka , Toshiya Akagi , Yoshiyuki Miyabata , Yuichi Takahashi
IPC分类号： G11B7/0045 , G11B7/005 , H01S5/042 , H01S5/068 , G11B7/004
CPC分类号： H01S5/042 , G11B7/00454 , G11B7/005 , H01S5/0427 , H01S5/06817
摘要： A semiconductor laser driving apparatus for directing light to an optical disc for recording a recording mark based on a recording current and reproducing the recording mark to generate a reproduction signal. The apparatus includes a reproduction current generation section; a high frequency current generation section for generating a current including a high frequency component for reducing semiconductor laser noise in the reproduction; a recording current generation section, the recording current including a pulse corresponding to the recording mark and including a plurality of multi-pulses; and a current driving section for amplification. The apparatus further includes a filter to attenuate the enhanced high frequency components in the high frequency current and in the enhanced high frequency component; and a switching section for switching the filter so that the enhanced component in the recording current is superposed on at least one of the multi-pulses.
摘要翻译：一种半导体激光器驱动装置，用于根据记录电流将光导向用于记录记录标记的光盘，并再现记录标记以产生再现信号。该装置包括再现电流产生部分; 高频电流产生部分，用于产生包括用于在再现中降低半导体激光器噪声的高频分量的电流; 记录电流产生部分，所述记录电流包括与所述记录标记对应的脉冲并且包括多个多脉冲; 和用于放大的电流驱动部分。该装置还包括滤波器，用于衰减高频电流和增强的高频分量中增强的高频分量; 以及切换部分，用于切换滤波器，使得记录电流中的增强分量叠加在多脉冲中的至少一个上。

8. 发明授权

US06744721B2 Optical disk drive 失效
标题翻译：光盘驱动器
公开(公告)号：US06744721B2
公开(公告)日：2004-06-01
申请号：US10142511
申请日：2002-05-09
申请人： Yuichi Kamioka , Chikashi Inokuchi , Takayuki Sakabayashi
发明人： Yuichi Kamioka , Chikashi Inokuchi , Takayuki Sakabayashi
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/007 , G11B20/1403 , G11B2220/216 , G11B2220/218 , G11B2220/2545 , G11B2220/2562 , G11B2220/2575
摘要： An optical disk drive reads and/or writes data from/on an optical disk on which a pre-pit has been formed on at least one side edge of a data recording track. The disk drive includes light-emitting element, photodetector section, subtractor and amplifier. The light-emitting element emits a light beam and irradiates the track with the light beam. The photodetector section receives and detects the light beam reflected from the track, thereby generating first and second detection signals, carrying information about shapes of the track at the one and the other side edges thereof, respectively, based on the reflected light beam. The subtractor generates a differential signal representing a difference between the first and second detection signals. The amplifier amplifies the differential signal, output from the subtractor, by a variable amplification factor. The optical disk drive detects the pre-pit in accordance with the amplified differential signal.
摘要翻译：光盘驱动器在数据记录磁道的至少一个侧边缘上从其上形成有预制凹坑的光盘上读取数据和/或写入数据。磁盘驱动器包括发光元件，光电检测器部分，减法器和放大器。发光元件发射光束并用光束照射轨道。光电检测器部分接收并检测从轨道反射的光束，从而基于反射光束分别产生第一和第二检测信号，分别携带关于轨道的一侧和另一侧边缘的形状的信息。减法器产生表示第一和第二检测信号之间的差的差分信号。放大器放大差分信号，从减法器输出一个可变放大因子。光盘驱动器根据放大的差分信号检测预制凹坑。

9. 发明授权

US5671209A Focusing time period and power control of a multilaser diode array 失效
标题翻译：聚焦时间段和多极二极管阵列的功率控制
公开(公告)号：US5671209A
公开(公告)日：1997-09-23
申请号：US559432
申请日：1995-11-15
申请人： Yuichi Kamioka , Kenji Koishi , Daisuke Ogata , Shigeru Furumiya
发明人： Yuichi Kamioka , Kenji Koishi , Daisuke Ogata , Shigeru Furumiya
IPC分类号： G11B7/00 , G11B7/004 , G11B7/09 , G11B7/125 , G11B7/14 , H01S5/0683 , H01S5/40
CPC分类号： G11B7/126 , H01S5/0683 , G11B7/0908 , G11B7/14 , H01S5/4025
摘要： A method for controlling intensities of a plurality of laser beams respectively emitted on a track of an optical disk by a plurality of laser diodes according to the present invention includes a step of performing focusing servo control for focusing one of the plurality of laser beams emitted by one of the plurality of laser diodes onto the track, and concurrently controlling an intensity of the laser beam emitted by each of plurality of laser diodes to be within a predetermined range by comparing a signal which is in accordance with an intensity of the laser beam emitted by that laser beam with a reference signal. A period during which the one of the plurality of laser diodes used for the focusing does not emit the one laser beam is shorter than a response time of the focus servo control.
摘要翻译：根据本发明的用于控制由多个激光二极管分别发射在光盘的轨道上的多个激光束的强度的方法包括以下步骤：执行聚焦伺服控制以聚焦由将多个激光二极管中的一个放射到轨道上，并且通过比较与发射的激光束的强度相对应的信号，同时将由多个激光二极管中的每一个发射的激光束的强度控制在预定范围内该激光束具有参考信号。用于聚焦的多个激光二极管中的一个不发射一个激光束的周期比聚焦伺服控制的响应时间短。

10. 发明申请

US20080080337A1 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US20080080337A1
公开(公告)日：2008-04-03
申请号：US11904296
申请日：2007-09-26
申请人： Yuichi Kamioka
发明人： Yuichi Kamioka
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1376
摘要： In an optical pickup device including light sources for emitting laser light, an objective lens for collecting the laser light emitted from the light sources on a disc surface of an optical disc, a light receiving unit for receiving the reflected light reflected by the disc surface, a collimator lens for correcting spherical aberration of the exit light from the objective lens, a lens driving unit for moving the collimator lens in an optical axis direction, and a control unit for controlling the operation of the lens driving unit based on the output of the light receiving unit, the astigmatism of the exit light from the objective lens is corrected by tilting the collimator lens by a predetermined angle by the lens driving unit.
摘要翻译：在包括用于发射激光的光源的光学拾取装置中，用于收集从光盘的光盘发射的激光在光盘的盘表面上的物镜的光接收单元，用于接收由盘表面反射的反射光的光接收单元，用于校正来自物镜的出射光的球面像差的准直透镜，用于沿光轴方向移动准直透镜的透镜驱动单元，以及用于基于所述透镜驱动单元的输出来控制透镜驱动单元的操作的控制单元光接收单元，通过透镜驱动单元将准直透镜倾斜预定角度来校正来自物镜的出射光的像散。

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