公开(公告)号：US06496454B1

公开(公告)日：2002-12-17

申请号：US09630676

申请日：2000-08-01

申请人： Junichi Nakano

发明人： Junichi Nakano

IPC分类号： G11B700

CPC分类号： G11B7/0908

摘要： An optical pickup device comprises a stationary optical system and a movable optical system. The stationary optical system includes a recording/reproducing laser, a collimator for the recording/reproducing laser, a servo laser, a collimator for the servo laser, an actuator for moving the collimator for the servo laser along its optical axis, and a beam coupling/splitting optical element. The movable optical system includes an objective lens and an actuator for moving the objective lens along its optical axis. The point of convergence of recording/reproducing laser light is suitably moved in the layer direction in a recording layer of an optical disk. It is moved in a manner such that the collimator for substantially collimating servo laser light is first moved along its optical axis and the objective lens is then moved along its optical axis to correct defocusing of the servo laser light that is caused by the movement of the collimator for the servo laser light.

摘要翻译： 光拾取装置包括固定光学系统和可移动光学系统。 固定光学系统包括记录/再现激光器，用于记录/再现激光器的准直器，伺服激光器，用于伺服激光器的准直器，用于沿其光轴移动用于伺服激光器的准直器的致动器，以及光束耦合 /分裂光学元件。 可移动光学系统包括物镜和用于沿其光轴移动物镜的致动器。 记录/再现激光的会聚点在光盘的记录层中在层方向适当地移动。 以使得用于大致准直伺服激光的准直器首先沿着其光轴移动并且然后物镜沿着其光轴移动以校正由于该光轴的运动引起的伺服激光的散焦的方式移动 准直器用于伺服激光。

公开(公告)号：US5970033A

公开(公告)日：1999-10-19

申请号：US928470

申请日：1997-09-12

申请人： Junichi Nakano ,  Takeru Hokkezu

发明人： Junichi Nakano ,  Takeru Hokkezu

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0948 ,  G11B7/0941 ,  G11B7/0946 ,  G11B7/0953 ,  G11B7/08582 ,  G11B7/0901

摘要： A tracking control unit for an optical disk drive comprises a TES detection circuit for detecting a tracking error signal (TES) in an output of a photodetector included in a stationary optical system, a frictional state prediction circuit for predicting a frictional state between guide shafts and a carriage on the basis of the TES detected by the TES detection circuit, a phase compensation filter for compensating for a phase difference of the TES detected by the TES detection circuit so as to stabilize a tracking control system on the basis of the result of the prediction performed by the frictional state prediction circuit, and a driver for moving the carriage in a direction in which a tracking error can be corrected for according to an output of the phase compensation filter and for thus controlling tracking.

摘要翻译： 用于光盘驱动器的跟踪控制单元包括TES检测电路，用于检测包括在固定光学系统中的光电检测器的输出中的跟踪误差信号（TES），用于预测导向轴之间的摩擦状态的摩擦状态预测电路 基于由TES检测电路检测到的TES的滑架，相位补偿滤波器，用于补偿由TES检测电路检测到的TES的相位差，以便基于该TES检测电路的结果来稳定跟踪控制系统 由摩擦状态预测电路执行的预测，以及用于根据相位补偿滤波器的输出沿着可校正跟踪误差的方向移动滑架的驱动器，从而控制跟踪。

公开(公告)号：US5684767A

公开(公告)日：1997-11-04

申请号：US504828

申请日：1995-07-20

申请人： Junichi Nakano

发明人： Junichi Nakano

IPC分类号： G11B21/08 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/08529

摘要： A tracking servo system of an optical disk apparatus is formed of a pickup irradiating laser on an optical disk on which information is recorded to reproduce the information, a tracking error detecting circuit detecting a tracking error signal TES which is a servo signal acquired by the pickup, a tracking control circuit performing tracking control based on the tracking error signal TES detected by the tracking error detecting circuit, a track jump control circuit controlling a track jump based on the tracking error signal TES, and a driver supplying a control signal from the tracking control circuit and the track jump control circuit through an adding circuit and driving an actuator of the pickup. The light emitted from the laser in the pickup is reflected by the optical disk having a spiral information track and led to the pickup again. From the quantity of reflected light detected by a photodiode in the pickup, a tracking error signal TES showing displacement quantity from the center of the information track of the optical spot is computed by the tracking error detecting circuit. The tracking error signal is supplied to the tracking control circuit and track jump circuit.

摘要翻译： 光盘装置的跟踪伺服系统由在其上记录有信息的光盘上的拾取器照射激光形成以再现信息的跟踪伺服系统;跟踪误差检测电路，检测作为由拾取器获取的伺服信号的跟踪误差信号TES 跟踪控制电路基于由跟踪误差检测电路检测到的跟踪误差信号TES执行跟踪控制，轨迹跳跃控制电路基于跟踪误差信号TES控制轨迹跳跃，以及驱动器，其提供来自跟踪的控制信号 控制电路和轨道跳跃控制电路，并且驱动拾取器的致动器。 在拾取器中从激光器发射的光被具有螺旋信息轨迹的光盘反射并再次被引导到拾取器。 根据拾取器中的光电二极管检测到的反射光量，通过跟踪误差检测电路计算出从光点的信息轨迹的中心开始的位移量的跟踪误差信号TES。 跟踪误差信号被提供给跟踪控制电路和跟踪跳跃电路。

公开(公告)号：US5585957A

公开(公告)日：1996-12-17

申请号：US216610

申请日：1994-03-23

申请人： Masashi Nakao ,  Yasuhiro Kondou ,  Masanobu Okayasu ,  Mitsuru Naganuma ,  Yasuhiro Suzuki ,  Masahiro Yuda ,  Osamu Mitomi ,  Kazuo Kasaya ,  Junichi Nakano ,  Kiyoyuki Yokoyama

发明人： Masashi Nakao ,  Yasuhiro Kondou ,  Masanobu Okayasu ,  Mitsuru Naganuma ,  Yasuhiro Suzuki ,  Masahiro Yuda ,  Osamu Mitomi ,  Kazuo Kasaya ,  Junichi Nakano ,  Kiyoyuki Yokoyama

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/13 ,  G02B6/42 ,  H01L31/0352 ,  H01L31/18 ,  H01L33/00 ,  H01L33/06 ,  H01S5/02 ,  H01S5/026 ,  H01S5/0625 ,  H01S5/10 ,  H01S5/12 ,  H01S5/20 ,  H01S5/227 ,  H01S5/32 ,  H01S5/34 ,  H01S5/343 ,  H01S5/40 ,  H01S5/50 ,  H01L27/14

CPC分类号： H01L33/06 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/122 ,  G02B6/1228 ,  G02B6/131 ,  G02B6/42 ,  H01L31/035236 ,  H01L31/1844 ,  H01L33/0062 ,  H01S5/06255 ,  H01S5/227 ,  H01S5/34 ,  G02B2006/12107 ,  G02B2006/12128 ,  H01S2304/04 ,  H01S5/0207 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/1057 ,  H01S5/106 ,  H01S5/1064 ,  H01S5/12 ,  H01S5/2077 ,  H01S5/2277 ,  H01S5/3203 ,  H01S5/3403 ,  H01S5/34306 ,  H01S5/34313 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5027 ,  Y02E10/544

摘要： An optical functional device includes a semiconductor substrate, an optical functional layer provided on said semiconductor substrate and selected from the group consisting of a light emitting layer, a light absorbing layer, and an optical waveguide layer. The optical functional layer has a multi-quantum well layer. Preferably, the semiconductor substrate is a nonplanar semiconductor substrate having a ridge and two grooves adjacent said ridge, said ridge having a ridge width of from 1 to 10 .mu.m, a ridge height of from 1 .mu.m to 5 .mu.m, and a gap distance of from 1 .mu.m to 10 .mu.m. Such an optical functional device can be fabricated by growing, on a nonplanar semiconductor substrate having a specified dimension of the ridge, a strained multi-quantum well layer by metalorganic vapor phase epitaxy. Integrated optical device or circuit preferably includes an optical functional device on the nonplanar semiconductor substrate of a specified range of ridge shape factors. An integrated optical device can be fabricated by combination of a plurality of optical functional devices having slightly different compositions and including a part of a strained multi-quantum well layer monolithically grown on a nonplanar semiconductor substrate.

摘要翻译： 光学功能器件包括半导体衬底，设置在所述半导体衬底上并选自由发光层，光吸收层和光波导层组成的组的光学功能层。 光学功能层具有多量子阱层。 优选地，半导体衬底是具有脊和邻近所述脊的两个沟槽的非平面半导体衬底，所述脊具有1至10μm的脊宽度，1μm至5μm的脊高度，以及间隙 距离1亩至10亩。 这种光学功能器件可以通过在具有特定尺寸的脊的非平面半导体衬底上生长，通过金属有机气相外延生长应变的多量子阱层来制造。 集成光学器件或电路优选地包括在非平面半导体衬底上的具有特定范围的脊形因子的光学功能器件。 可以通过组合具有稍微不同组成的多个光学功能器件并且包括在非平面半导体衬底上单片生长的应变多量子阱层的一部分来制造集成光学器件。

公开(公告)号：US5566142A

公开(公告)日：1996-10-15

申请号：US384843

申请日：1995-02-07

申请人： Junichi Nakano ,  Nobuo Miyairi ,  Shohei Kobayashi ,  Akihiko Yoshizawa

发明人： Junichi Nakano ,  Nobuo Miyairi ,  Shohei Kobayashi ,  Akihiko Yoshizawa

IPC分类号： G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/00

CPC分类号： G11B7/127 ,  G11B7/123 ,  G11B7/13

摘要： The present invention is directed to an apparatus using an integrated type pickup as an optical head for writing and reading optical information and capabling of writing data at high speeds. The apparatus includes a laser diode having an active layer at its intermediate position and having one area side held over a surface of a semiconductor substrate with an insulating layer interposed between the semiconductor substrate and the laser diode relative to the active layer. The laser diode has two areas with the active layer as a boundary and a constant potential is applied from a power supply to the insulating layer side of the laser diode and a transistor (laser diode drive unit) is provided to apply a modulation signal to the other area of the laser diode so that the laser diode is driven to modulate its output. By doing so, a constant potential is maintained at the semiconductor substrate and at the insulating layer's side of the laser diode and the modulation signal is applied to the other area side of the laser diode. When a drive current of the laser diode is varied by the modulation signal, a voltage variation occurs only on the other area side of the laser diode so that a high-frequency drive current, if flowing through the insulating layer side, is small and hence the laser diode has its output to be modulated effectively.

摘要翻译： 本发明涉及使用集成型拾取器作为用于写入和读取光学信息的光学头和高速写入数据的功能的装置。 该装置包括激光二极管，该激光二极管在其中间位置处具有有源层，并且其一个区域侧保持在半导体衬底的表面上，相对于有源层，绝缘层介于半导体衬底和激光二极管之间。 激光二极管具有两个区域，其中有源层作为边界，并且从电源向激光二极管的绝缘层侧施加恒定电位，并且提供晶体管（激光二极管驱动单元）以将调制信号施加到 激光二极管的其他区域，以便驱动激光二极管来调制其输出。 通过这样做，在半导体衬底和激光二极管的绝缘层侧保持恒定的电位，并且将调制信号施加到激光二极管的另一个区域侧。 当激光二极管的驱动电流由调制信号变化时，仅在激光二极管的另一区域侧产生电压变化，使得如果流过绝缘层侧的高频驱动电流较小，因此 激光二极管的输出有效调制。

公开(公告)号：US5195069A

公开(公告)日：1993-03-16

申请号：US684722

申请日：1991-04-15

申请人： Junichi Nakano

发明人： Junichi Nakano

IPC分类号： G11B7/085

CPC分类号： G11B7/08582 ,  G11B7/08517

摘要： In order to make a track jump from the present track to a target track, accelerating pulses and decelerating pulses are sequentially fed to a tracking actuator driving an objective lens condensing and radiating light beams to a disc, then a tracking servo is switched on, a tracking error signal within a fixed time after the decelerating pulses is monitored with a zero cross comparator or the like and further the decelerating pulses can be additionally output to the tracking actuator in response to the output of this comparator. In case it is hard for the light spot to teach the target track, the light spot will be pulled to the target track side by switching on the tracking servo and, in case it passes over the target track, the light spot will be suppressed in passing over the switching on the tracking servo and the movement of the light spot will be decelerated by the additionally output decelerating pusles to pull the light spot into the target track.

摘要翻译： 为了使轨道从当前轨道跳转到目标轨道，加速脉冲和减速脉冲被顺序地馈送到跟踪致动器，驱动物镜会聚和辐射光束到盘，然后跟踪伺服被接通， 在用零交叉比较器等监视减速脉冲之后的固定时间内的跟踪误差信号，并且还可以响应于该比较器的输出将减速脉冲另外输出到跟踪致动器。 在光点难以教导目标轨迹的情况下，通过接通跟踪伺服将光点拉到目标轨道侧，并且在通过目标轨道的情况下，光点将被抑制 通过跟踪伺服上的切换，并且光点的移动将通过附加输出的减速胡刀减速，以将光点拉入目标轨道。

公开(公告)号：US09398231B2

公开(公告)日：2016-07-19

申请号：US13634735

申请日：2011-02-07

申请人： Shinya Yuasa ,  Junichi Nakano ,  Takeshi Naito ,  Shunsuke Kamijo

发明人： Shinya Yuasa ,  Junichi Nakano ,  Takeshi Naito ,  Shunsuke Kamijo

IPC分类号： G08B13/00 ,  H04N5/247 ,  H04N5/232 ,  G08B13/196 ,  H04N7/18

CPC分类号： H04N5/247 ,  G06T7/292 ,  G08B13/19608 ,  G08B13/19645 ,  H04N5/232 ,  H04N7/181

摘要： A surveillance camera terminal includes an imaging means that outputs a frame image, an imaging visual field control means that changes the imaging visual field of the imaging means in a surveillance area, an object extracting means that extracts an object being imaged by processing the frame image taken by the imaging means, a tracking means that detects a position of the object in the surveillance area based on a position of the object extracted by the object extracting means on the frame image and the imaging visual field of the imaging means, an imaging visual field storage means that stores an imaging visual field, and detection means that detects whether or not the object being tracked by the tracking means has traveled to a position near a handover area for handover of the object to another surveillance camera terminal.

摘要翻译： 监视摄像机终端包括输出帧图像的成像装置，在监视区域中改变成像装置的成像视野的成像视野控制装置，通过处理帧图像提取正被成像对象的对象提取装置 由成像装置拍摄的跟踪装置，其基于由对象提取装置提取的对象的位置在成像装置的帧图像和成像视野上检测对象在监视区域中的位置，成像视觉 存储成像视野的场存储装置，以及检测装置，检测由跟踪装置跟踪的对象是否已经行进到切换区域附近的位置，以将对象切换到另一个监视摄像机终端。

公开(公告)号：US07455320B2

公开(公告)日：2008-11-25

申请号：US10554024

申请日：2004-04-28

申请人： Kenji Imamura ,  Shigeru Hoshino ,  Kiminori Yoshino ,  Hideo Kondo ,  Junichi Nakano ,  Hiroaki Date ,  Hitoshi Nakanishi

发明人： Kenji Imamura ,  Shigeru Hoshino ,  Kiminori Yoshino ,  Hideo Kondo ,  Junichi Nakano ,  Hiroaki Date ,  Hitoshi Nakanishi

IPC分类号： B62D1/00

CPC分类号： B62D1/195

摘要： A shock absorbing steering apparatus for use in a vehicle, including a steering column to be fixed to a portion of a body of the vehicle such that the steering column is releasable from the body of the vehicle and movable in a forward direction of the vehicle in the event of a secondary collision of an occupant of the vehicle upon a collision of the vehicle, and wherein one of the steering column and the portion of the vehicle body includes a mounting portion, while the other of the steering column and the portion of the vehicle body includes a holding portion. The steering apparatus further includes an impact energy absorbing member to be mounted on the mounting portion. The impact energy absorbing portion includes an engaging portion engageable with the holding portion and is deformable as the steering column is moved in the forward direction while the engaging portion is held in engagement with the holding portion, whereby the impact energy absorbing member absorbs an impact energy generated by the secondary collision.

摘要翻译： 一种用于车辆的减震转向装置，包括转向柱，该转向柱固定在车体的一部分上，使得转向柱能够从车辆的车身上释放并可沿车辆的前方移动 在车辆碰撞时车辆的乘客二次碰撞的事件，并且其中转向柱和车体的一部分包括安装部分，而转向柱和另一部分转向柱 车体包括保持部。 转向装置还包括安装在安装部分上的冲击能量吸收构件。 冲击能量吸收部包括能够与保持部接合的卡合部，并且当卡合部与保持部保持接合时，转向柱向前方移动时可变形，由此冲击能量吸收部吸收冲击能 由二次碰撞产生。

公开(公告)号：US07263252B2

公开(公告)日：2007-08-28

申请号：US10898913

申请日：2004-07-26

申请人： Junichi Nakano ,  Kenzi Murakami

发明人： Junichi Nakano ,  Kenzi Murakami

IPC分类号： G02B6/26

CPC分类号： H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0039 ,  H04Q2011/0049

摘要： An optical switch of the present invention includes at least one input optical fiber, output optical fibers, at least one movable mirror for directing a light beam from the input optical fiber selectively to one of the output optical fibers, and at least one shutter for appropriately intercepting the light beam traveling toward the movable mirror from the input optical fiber. A direction of the movable mirror is changeable, and the direction of the movable mirror is changed to switch the output optical fiber that combines with the light beam reflected by the movable mirror. The shutter intercepts the light beam traveling toward the movable mirror while the direction of the movable mirror is changed.

摘要翻译： 本发明的光开关包括至少一个输入光纤，输出光纤，用于将来自输入光纤的光束选择性地引导到输出光纤之一的至少一个可移动反射镜，以及至少一个用于适当地 拦截从输入光纤向可移动镜移动的光束。 可移动镜的方向是可变的，并且改变可移动镜的方向以切换与由可移动镜反射的光束组合的输出光纤。 快门拦截朝向可移动镜移动的光束，同时移动镜的方向改变。

公开(公告)号：US07240922B2

公开(公告)日：2007-07-10

申请号：US10511303

申请日：2003-08-19

申请人： Junichi Nakano ,  Kenji Imamura ,  Shigeru Hoshino

发明人： Junichi Nakano ,  Kenji Imamura ,  Shigeru Hoshino

IPC分类号： B62D1/19

CPC分类号： F16F7/128 ,  B62D1/184 ,  B62D1/195

摘要： Collision-energy-absorbing means of an impact-absorbing steering column apparatus includes guide slots 31a1 and 31b1, guide slots 31a2 and 31b2, and transition portions 31a3 and 31b3, as well as energy-absorbing members 36 and 37, so as to change absorption load for secondary collision energy. A collar 42 plastically deforms the energy-absorbing member 36 or 37, thereby absorbing secondary collision energy of an occupant in the event of a collision of a vehicle. The guide slots 31a1 and 31b1, the guide slots 31a2 and 31b2, and the transition portions 31a3 and 31b3 change an absorption load for secondary collision energy dependently on the direction of a secondary collision of the occupant with the steering system.

摘要翻译： 冲击吸收转向柱装置的碰撞能量吸收装置包括引导槽31a 1和31b 1，导向槽31a 2和31b 2以及过渡部分31a 3和31b 3以及能量 吸收构件36和37，以便改变二次碰撞能量的吸收载荷。 轴环42使能量吸收构件36或37塑性变形，从而在车辆碰撞的情况下吸收乘员的次级碰撞能量。 引导槽31a1和31b1，导向槽31a2和31b2以及过渡部分31a3和31b3根据二次碰撞的方向改变二次碰撞能量的吸收负载 乘员与转向系统。