公开(公告)号：US08559290B2

公开(公告)日：2013-10-15

申请号：US12893332

申请日：2010-09-29

申请人： Satoshi Inoue ,  Yuta Yoshida ,  Naoto Hashimoto ,  Suguru Takishima

发明人： Satoshi Inoue ,  Yuta Yoshida ,  Naoto Hashimoto ,  Suguru Takishima

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B13/16 ,  G11B7/1353 ,  G11B7/1376

摘要： An optical information recording/reproducing optical system where resin material has Tg>115° C., first, second and third films are on an optical disc side of an objective lens and surfaces of an optical element, respectively, a light source side of the objective lens has a fourth film having four or more layers not containing Ti, each of the first, second and third films includes a non-high refractive index layer made of one of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride or a mixture of at least two of them, each of the first, second and third films is not made of one of Ti, Ta, Hf, Zr, Nb, Mo and Cr, a layer of the fourth film closest to a base material is the non-high refractive index layer. The fourth film satisfies 350

摘要翻译： 一种光学信息记录/再现光学系统，其中树脂材料具有Tg> 115℃，第一，第二和第三薄膜位于物镜的光盘侧，光学元件的表面分别为 物镜具有不含Ti的四层以上的第四膜，第一膜，第二膜和第三膜中的每一层均包含由氧化硅，氧化铝，氟化铝和氟化镁之一构成的非高折射率层或混合物 其中至少两个，第一，第二和第三膜中的每一个不是由Ti，Ta，Hf，Zr，Nb，Mo和Cr中的一种制成，所以第四膜最靠近基材的层是非 高折射率层。 第四片满足350

公开(公告)号：US06324141B2

公开(公告)日：2001-11-27

申请号：US09785165

申请日：2001-02-20

申请人： Suguru Takishima ,  Hiroshi Nishikawa ,  Amit Jain

发明人： Suguru Takishima ,  Hiroshi Nishikawa ,  Amit Jain

IPC分类号： G11B390

CPC分类号： B82Y10/00 ,  G11B7/08564 ,  G11B7/08576 ,  G11B7/0901 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/1372 ,  G11B7/1387 ,  G11B11/10554 ,  G11B11/10569 ,  G11B11/1058

摘要： There is provided a head of an optical data recording/reproducing device. The head is provided with a laser source, a deflector, a relay optical system and an objective lens system. The laser beam emitted by the laser source is incident on the objective lens system via the deflector and the relay optical system. The head is further provided with a rotation angle detecting system which includes a beam splitter provided between first and second relay lenses of the relay lens system, and a detector. The beam splitter divides the incident beam into a first beam directed to the second relay lens and a second beam directed to the detector. The detector has two light receiving areas, and a controller determines an amount of rotation of the deflector based on the amounts of light received by the two light receiving areas.

摘要翻译： 提供了一种光学数据记录/再现装置的头部。 头部设置有激光源，偏转器，中继光学系统和物镜系统。 由激光源发射的激光束经由偏转器和中继光学系统入射到物镜系统上。 头部还设置有旋转角度检测系统，其包括设置在中继透镜系统的第一和第二中继透镜之间的分束器和检测器。 分束器将入射光束分成指向第二中继透镜的第一光束和指向检测器的第二光束。 检测器具有两个光接收区域，并且控制器基于由两个光接收区域接收的光量来确定偏转器的旋转量。

公开(公告)号：US06292447B1

公开(公告)日：2001-09-18

申请号：US09177568

申请日：1998-10-23

申请人： Suguru Takishima ,  Hiroshi Nishikawa

发明人： Suguru Takishima ,  Hiroshi Nishikawa

IPC分类号： G11B390

CPC分类号： G11B7/08576 ,  G11B7/08564 ,  G11B7/0901 ,  G11B7/122 ,  G11B7/13 ,  G11B11/10532 ,  G11B11/10554 ,  G11B11/10576 ,  G11B11/1058

摘要： Disclosed is a head of an optical data recording and/or reproducing device. The head is provided with a laser source, an objective optical system, a deflector for deflecting the laser beam emitted by the laser source towards the objective optical system. A relay optical system provided between the deflector and the objective optical system. Further, a detector is provided between the deflector and the relay optical system. The detector has a first and a second light receiving portions and an opening. The two light receiving portions are arranged in a first direction in which the laser beam is deflected by the deflector. A part of the laser beam incident on the detector is received by the first and second light receiving portions, the other passes through the opening. An amount of rotation of the deflector is detected in accordance with amounts of light received by the two light receiving portions.

摘要翻译： 公开了一种光学数据记录和/或再现装置的头部。 头部设置有激光源，物镜光学系统，用于使由激光源发射的激光束朝向物镜光学系统偏转的偏转器。 设置在偏转器和物镜光学系统之间的中继光学系统。 此外，在偏转器和中继光学系统之间设置检测器。 检测器具有第一和第二光接收部分和开口。 两个光接收部分被布置在激光束被偏转器偏转的第一方向上。 入射到检测器上的激光束的一部分被第一和第二光接收部分接收，另一个通过该开口。 根据由两个光接收部分接收的光量来检测偏转器的旋转量。

公开(公告)号：US06249500B1

公开(公告)日：2001-06-19

申请号：US09050873

申请日：1998-03-31

申请人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima

发明人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima

IPC分类号： G11B3392

CPC分类号： G11B17/0438 ,  G11B11/10558 ,  G11B11/10573

摘要： A disk cartridge loading system for a disk drive. The loading system includes a disk cartridge holder, a drawing mechanism, a draw-in sensor, a loading sensor, and a controller. The drawing mechanism engages a partially inserted disk cartridge to fully draw the disk cartridge into the disk drive, so that the disk cartridge is accommodated in a disk cartridge holder. A holder moving mechanism moves the disk cartridge holder to a loading position, so that at least one of a data reading operation and a data writing operation can be performed. A draw-in sensor is provided to detect the partial insertion of the disk cartridge, while a loading sensor detects when the disk cartridge is located at the loading position. A control unit controls the drawing mechanism and the holder moving mechanism, based on a first signal produced by the draw-in sensor and a second signal produced by the loading sensor.

摘要翻译： 用于磁盘驱动器的磁盘盒装载系统。 装载系统包括盘盒保持架，拉伸机构，抽入传感器，装载传感器和控制器。 拉拔机构接合部分插入的盘盒，以将盘盒完全拉入盘驱动器，使得盘盒容纳在盘盒保持器中。 保持器移动机构将盘盒保持器移动到装载位置，使得可以执行数据读取操作和数据写入操作中的至少一个。 提供了一个吸入传感器来检测盘盒的部分插入，而加载传感器检测盘盒何时位于装载位置。 控制单元基于由引入传感器产生的第一信号和由加载传感器产生的第二信号来控制绘图机构和保持器移动机构。

公开(公告)号：US5956214A

公开(公告)日：1999-09-21

申请号：US998977

申请日：1997-12-29

申请人： Shimpei Shinozaki ,  Suguru Takishima

发明人： Shimpei Shinozaki ,  Suguru Takishima

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B21/22

CPC分类号： G11B17/043 ,  G11B11/10558

摘要： A magnetic head drive mechanism in a photo-electro-magnetic disk drive is so designed that a magnetic head is coupled to the end portion of a swingable arm, and, as a photo-electro-magnetic disk is loaded or unloaded, the arm is swung, to move the magnetic head towards or away from the surface of the photo-electro-magnetic disk. In the magnetic head drive mechanism, pins are provided on both sides of the magnetic head, respectively, and a first engaging groove which is engaged with the pin and a second engaging groove which is engaged with the pin are provided on both sides of the opening of a cartridge head, respectively, whereby, at the unloading time both sides of the magnetic head are locked; that is, the vibration of the magnetic head is prevented during the transportation.

摘要翻译： 光电磁盘驱动器中的磁头驱动机构被设计成使得磁头耦合到可摆动臂的端部，并且当光电磁盘被装载或卸载时，臂是 摆动，将磁头朝向或远离光电磁盘的表面移动。 在磁头驱动机构中，销分别设置在磁头的两侧，并且与销接合的第一接合槽和与销接合的第二接合槽设置在开口的两侧 分别地，在卸载时，磁头的两侧被锁定; 也就是说，在运输过程中防止了磁头的振动。

公开(公告)号：US5513159A

公开(公告)日：1996-04-30

申请号：US383379

申请日：1995-02-03

申请人： Suguru Takishima

发明人： Suguru Takishima

IPC分类号： G11B11/105 ,  G11B7/085

CPC分类号： G11B11/10595 ,  G11B11/10554 ,  G11B11/10573 ,  G11B11/1058

摘要： A device is provided for selecting a magnetic head to be operated together with an optical head to record or reproduce a signal on a magneto-optical disc. The device includes a first magnetic head and a second magnetic head, each having different capabilities. The first and second magnetic heads are arranged along a radial direction with respect to a magneto-optical disc. The device is capable of determining the type of magneto-optical disc being used, and upon such determination, controls the position of a carriage to position either the first or second magnetic head to face the optical head.

摘要翻译： 提供一种用于选择要与光头一起操作的磁头以在磁光盘上记录或再现信号的装置。 该装置包括第一磁头和第二磁头，每个具有不同的能力。 第一和第二磁头相对于磁光盘沿径向方向布置。 该装置能够确定所使用的磁光盘的类型，并且在这种确定的情况下，控制滑架的位置以将第一或第二磁头定位于面对光学头。

公开(公告)号：US5337300A

公开(公告)日：1994-08-09

申请号：US818534

申请日：1992-01-09

申请人： Suguru Takishima ,  Toshiyuki Kase

发明人： Suguru Takishima ,  Toshiyuki Kase

IPC分类号： G11B7/005 ,  G11B7/09 ,  G11B7/135 ,  G11B11/10 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/1356 ,  G11B11/10515 ,  G11B11/10543 ,  G11B7/005

摘要： A signal sensing device is provided that includes an optical system having a first splitting function by which a beam reflected by a magneto-optic disk is split by a small amount, a second splitting function by which the beam is split into a P-polarized-component and an S-polarized-component, and a third splitting function by which the beam is split into a first optical path and a second optical path. The second splitting function is carried out by an optical element carrying out one of the first and third splitting functions. A first photo sensor is provided with a beam receiving area divided into four parts, and an undivided beam receiving area, and a second photo sensor is provided with a beam receiving area divided into two parts and an undivided beam receiving area. The beam receiving divided area of the first photo sensor receives the P-polarized-component and senses a focusing error signal, and the beam receiving divided area of the second photo sensor receives the S-polarized-component and senses a tracking error signal. The beam receiving undivided areas of the first and second photo sensors are provided for sensing an information record signal.

摘要翻译： 提供了一种信号感测装置，其包括具有第一分离功能的光学系统，由磁光盘反射的光束通过该光学系统分割少量，第二分割功能，通过该第二分割功能将光束分裂成P偏振光， 分量和S偏振分量，以及第三分割功能，通过该功能将光束分成第一光路和第二光路。 第二分割功能由执行第一和第三分割功能之一的光学元件执行。 第一光传感器设置有分为四部分的光束接收区域和不分光束接收区域，第二光传感器设置有被分成两部分的光束接收区域和不分光束接收区域。 第一光传感器的光束接收分割区域接收P偏振分量并感测聚焦误差信号，并且第二光传感器的光束接收分割区域接收S偏振分量并感测跟踪误差信号。 接收第一和第二光传感器的未分割区域的光束用于感测信息记录信号。

公开(公告)号：US4956833A

公开(公告)日：1990-09-11

申请号：US456068

申请日：1989-12-26

申请人： Hiroshi Kokado ,  Suguru Takishima ,  Koichiro Nishikawa ,  Junichi Takeda ,  Masahiko Sasaki ,  Isao Okuda ,  Hiroshi Yamamoto ,  Masami Ninomiya ,  Akihiro Tanaka ,  Hiroshi Motohashi ,  Makoto Iwaki ,  Wataru Kubo

发明人： Hiroshi Kokado ,  Suguru Takishima ,  Koichiro Nishikawa ,  Junichi Takeda ,  Masahiko Sasaki ,  Isao Okuda ,  Hiroshi Yamamoto ,  Masami Ninomiya ,  Akihiro Tanaka ,  Hiroshi Motohashi ,  Makoto Iwaki ,  Wataru Kubo

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B33/08

CPC分类号： G11B7/12 ,  G11B33/08 ,  G11B7/093 ,  G11B7/094

摘要： An optical disk apparatus comprises an optical pickup having an optical pickup body carrying a laser and a photodetector responsive to light emitted from the laser and reflected by the optical disk for producing tracking error signals mounted on the optical pickup body for reciprocal movement in a tracking direction responsive to operation of an actuator, and supports an objective for focusing the beam on the disk. A position sensor produces position signals in response to displacement of the movable portion in the tracking direction. Finally a servo tracking circuit outputs driving signals to the actuator on the basis of tracking error signals produced either in response to tracking error signals produced from outputs of the photodetector and position signals produced from output signals of the position sensor, in response only to the latter. The optical disk apparatus having the foregoing construction eliminates direct-current offset included in tracking error signals, stabilizes driving of the objective, and reduces access time.

摘要翻译： 一种光盘装置，包括具有携带激光的光学拾取器的光学拾取器和响应于由激光器发出并由光盘反射的光的光电检测器，用于产生安装在光学拾取器主体上的跟踪误差信号，用于在跟踪方向上往复运动 响应于致动器的操作，并且支持将光束聚焦在盘上的目的。 位置传感器响应可动部分在跟踪方向上的位移而产生位置信号。 最后，伺服跟踪电路根据由响应于由光电检测器的输出产生的跟踪误差信号和由位置传感器的输出信号产生的位置信号而产生的跟踪误差信号，将驱动信号输出到致动器，仅响应于后者 。 具有上述结构的光盘装置消除了包括在跟踪误差信号中的直流偏移，稳定了目标的驱动，并减少了存取时间。

公开(公告)号：US06407975B1

公开(公告)日：2002-06-18

申请号：US09267709

申请日：1999-03-15

申请人： Suguru Takishima

发明人： Suguru Takishima

IPC分类号： G11B700

CPC分类号： B82Y10/00 ,  G11B7/08564 ,  G11B7/08594 ,  G11B7/122 ,  G11B11/10534 ,  G11B11/10554 ,  G11B11/1058

摘要： An optical disk drive includes two object optical systems, two carriages which respectively carry the object optical system and are movable along surfaces of an optical disk. Separated from the carriages, a separate optical unit (including a laser source module) is provided. A beam path selection system is provided for selectively introducing the beam from the laser source module to one of the object optical systems.

摘要翻译： 光盘驱动器包括两个物体光学系统，两个托架分别承载物体光学系统并且可沿着光盘的表面移动。 与托架分离，提供了单独的光学单元（包括激光源模块）。 提供了一种光束路径选择系统，用于选择性地将来自激光源模块的光束引入到对象光学系统中的一个。

公开(公告)号：US06376953B1

公开(公告)日：2002-04-23

申请号：US09493676

申请日：2000-01-28

申请人： Toshio Nakagishi ,  Suguru Takishima ,  Hiroshi Yamamoto

发明人： Toshio Nakagishi ,  Suguru Takishima ,  Hiroshi Yamamoto

IPC分类号： H02K516

CPC分类号： B82Y10/00 ,  G02B7/1821 ,  G02B26/105 ,  G11B7/08564 ,  G11B7/08576 ,  G11B7/0901 ,  G11B7/122 ,  G11B7/1362 ,  G11B11/10569 ,  G11B11/1058

摘要： A galvano mirror unit includes a galvano mirror, a rotor to which the galvano mirror is mounted, a stator that rotatably supports the rotor about a rotation axis, a pair of center pins provided to the stator, and a pair of receive members provided to the rotor. The receive members respectively receive the center pins. The rotor is pivoted by the engagement of the center pin and the receive member.