公开(公告)号：US5617387A

公开(公告)日：1997-04-01

申请号：US782737

申请日：1991-10-28

申请人： Takashi Morita ,  Suguru Takishima ,  Isao Okuda

发明人： Takashi Morita ,  Suguru Takishima ,  Isao Okuda

IPC分类号： G11B7/08 ,  G02B26/08 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105 ,  G11B7/00 ,  G02B5/30

CPC分类号： G02B26/0875 ,  G11B7/094 ,  G11B7/1365 ,  G11B7/22 ,  G11B11/10543 ,  G11B7/0901 ,  G11B7/12

摘要： In an optical system comprising a light source section consisting of a semiconductor laser and a collimator lens, an objective lens for focusing a light beam on an optical disk, a beam splitter for separating part of the light beam reflected from the optical disk, a condenser lens, and a photosensor for detecting the separated light beam to produce a focusing and a tracking error signal, a plane parallel plate is provided between the light source section and the beam splitter. By rotating the plane parallel plate with an adjusting mechanism, the light beam undergoes a parallel shift, so that the intensity distribution of light being incident on the objective lens is varied and a tracking offset due to a deviation of the optical axis of the output light from the light source section can be compensated for. The plane parallel plate may be disposed between the beam splitter and the condenser lens.

摘要翻译： 在包括由半导体激光器和准直透镜构成的光源部分的光学系统中，用于将光束聚焦在光盘上的物镜，用于分离从光盘反射的光束的一部分的分束器，冷凝器 透镜和用于检测分离的光束以产生聚焦和跟踪误差信号的光电传感器，在光源部分和分束器之间设置平面平行板。 通过用调整机构旋转平面平行板，光束经受平行移动，使得入射到物镜上的光的强度分布变化，并且由于输出光的光轴偏离引起的跟踪偏移 从光源部分可以补偿。 平面平行板可以设置在分束器和聚光透镜之间。

公开(公告)号：US5544144A

公开(公告)日：1996-08-06

申请号：US556829

申请日：1995-11-02

申请人： Suguru Takishima ,  Isao Okuda ,  Takashi Morita

发明人： Suguru Takishima ,  Isao Okuda ,  Takashi Morita

IPC分类号： G11B7/125 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/1356 ,  G11B7/126 ,  G11B7/1359

摘要： An optical head structure, employed in an optical device, in which light radiated from a predetermined light source is projected onto a predetermined recording medium through a light splitting member is disclosed. Part of the light is directed to the outside of the light splitting member and converged so as to be detected by a predetermined light detecting member. The light directed to the outside of the light splitting member is reflected at a predetermined angle by a predetermined light reflecting member. Thus, it becomes possible to make the whole volume of the optical device smaller. Also, the number of parts required in the optical head structure can be decreased.

摘要翻译： 公开了一种在光学装置中使用的光学头结构，其中从预定光源辐射的光通过分光构件投影到预定的记录介质上。 光的一部分被引导到分光构件的外部并会聚，以便由预定的光检测构件检测。 指向分光构件外侧的光被预定的光反射构件以预定的角度反射。 因此，可以使光学装置的整体体积更小。 此外，可以减少光头结构中所需的部件数量。

公开(公告)号：US5416753A

公开(公告)日：1995-05-16

申请号：US151113

申请日：1993-11-12

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

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

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B13/04

CPC分类号： G11B17/0434 ,  G11B11/10558 ,  G11B11/10571 ,  G11B11/10573

摘要： A magneto-optical disk drive system is provided with a housing and a disk cartridge for housing a magneto-optical disk therein. The disk cartridge is insertable into the housing, an optical head is disposed in the housing for movement in a first radial direction of the magneto-optical disk on one side thereof. A magnetic head is disposed in the housing for movement in a second radial direction of the magneto-optical disk on an opposite side thereof, and a position sensor is coupled to the optical and magnetic heads, for detecting the relative position of the optical and magnetic heads. A first position adjuster disposed in the housing for aligning the first and second radial directions with each other, second position adjuster disposed in the housing for positionally aligning the optical head and the magnetic head with each other across the first and second radial directions, and third position adjuster is disposed in the housing for positionally adjusting the position sensor with respect to the optical head and the magnetic head along the first and second radial directions.

摘要翻译： 磁光盘驱动系统设置有壳体和用于在其中容纳磁光盘的盘盒。 磁盘盒可插入壳体中，光学头设置在壳体中，用于在其一侧的磁光盘的第一径向方向上移动。 一个磁头设置在壳体中，用于在磁光盘的相反侧的第二径向移动，并且位置传感器耦合到光磁头，用于检测光磁盘的相对位置 头。 第一位置调节器，设置在壳体中，用于使第一和第二径向对准，第二位置调节器设置在壳体中，用于使光学头和磁头在第一和第二径向方向上彼此定位; 位置调节器设置在壳体中，用于相对于光学头和磁头沿着第一和第二径向位置地调节位置传感器。

公开(公告)号：US5309423A

公开(公告)日：1994-05-03

申请号：US929535

申请日：1992-08-14

申请人： Masato Noguchi ,  Isao Okuda ,  Suguru Takishima

发明人： Masato Noguchi ,  Isao Okuda ,  Suguru Takishima

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B11/10543

摘要： A reflected light beam from a magneto-optic disk is reflected by a first and second reflective element toward a signal detecting system. The first reflective element reflects the reflected light from the magneto-optic disk and gives a phase difference into the light beam. The second reflective element reflects the reflected light by the first reflective element toward the signal detecting system, and gives a phase difference which has the same amount as the phase difference caused by the first reflective element, but with the inverse sign thereof.

摘要翻译： 来自磁光盘的反射光束被第一和第二反射元件反射向信号检测系统。 第一反射元件反射来自磁光盘的反射光，并给出光束的相位差。 第二反射元件将第一反射元件的反射光反射到信号检测系统，并且给出与由第一反射元件引起的相位差相同量的相位差，但是具有其相反的符号。

公开(公告)号：US6011673A

公开(公告)日：2000-01-04

申请号：US50869

申请日：1998-03-31

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

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

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B5/54

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

摘要： A magneto-optical disk drive incorporates: a structure to mount a front panel to a frame using a cartridge loading system, using a set of linearly movable control cam plates, to draw a cartridge into a cartridge holder and then to move the cartridge holder to an operating position; a timing control system for the cartridge loading system, which includes a unitary encoder cam gear including a drive gear portion to move the cam plates to lift and lower the cartridge holder, a cam groove portion to draw a cartridge into the cartridge holder, and timing encoders portions to interrupt photo sensors; a shutter mechanism to fully close a cartridge slot with a shutter, both when the drive holds a cartridge and when empty; a magnetic head vertical positioning system to position a magnetic head base against fixed reference surfaces below and a set of resilient members above; a magnetic head horizontal positioning system to first fix the magnetic head base to rotate horizontally about a point, and then to resiliently hold the base from rotating against a rigid member; a magnetic head carriage lock mechanism to hold a magnetic head carriage in its outermost radial position; and a control system for quickly synchronizing magnetic head movement and optical head movement by first moving both heads to an outermost radial position.

摘要翻译： 磁光盘驱动器包括：使用一组线性可移动控制凸轮板将盒前端面板安装到框架的结构，使用一组可线性移动的控制凸轮板将盒子拉入盒架中，然后将盒架移动到 经营职位; 一种用于盒装载系统的定时控制系统，其包括一个整体编码器凸轮齿轮，其包括用于移动凸轮板以提升和降低盒保持器的驱动齿轮部分，将盒子拉入盒保持器的凸轮槽部分， 编码器部分来中断光传感器; 一个快门机构，用于在驱动器固定墨盒时和空时完全关闭带有快门的墨盒槽; 磁头垂直定位系统，用于将磁头基座定位在下面固定的参考表面和一组上面的弹性构件; 一个磁头水平定位系统，用于首先将磁头基座固定在水平方向绕一个点旋转，然后弹性地将基座旋转抵靠刚性构件; 用于将磁头托架保持在其最外径位置的磁头托架锁定机构; 以及用于通过首先将两个头移动到最外径位置来快速地使磁头移动和光头移动同步的控制系统。

公开(公告)号：US5577008A

公开(公告)日：1996-11-19

申请号：US409948

申请日：1995-03-23

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

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

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B11/00 ,  G11B33/02

CPC分类号： G11B11/10558 ,  G11B17/0438 ,  G11B11/10597

摘要： A magneto-optical disk drive system, utilizing a magnetic field modulation recording method, has a disk cartridge for housing a magneto-optical disk therein and insertable into a system housing and a magnetic head in the system housing for writing information on the magneto-optical disk held in the disk cartridge. The disk cartridge is guided by cam grooves and cam pins for movement between a first unloading position and a first loading position when inserted in the system housing. The magnetic head is guided by cam grooves and cam pins for movement between a second unloading position remote from the disk cartridge and a second loading position close to the disk cartridge. The magnetic head is normally urged to move from the second loading position toward the second unloading position under the bias of a tension spring. A lock arm is attracted by an electromagnet to lock the magnetic head in the second loading position when the main power supply of the magneto-optical disk drive system is turned on. When the electromagnet is de-energized, the lock arm is released, unlocking the magnetic head to move from the second loading position toward the second unloading position toward the second unloading position under the bias of the tension spring.

摘要翻译： 利用磁场调制记录方法的磁光盘驱动系统具有用于在其中容纳磁光盘的盘盒，可插入到系统外壳中的磁头和用于将信息写入磁光的系统外壳中的磁头 磁盘保持在磁盘盒中。 盘盒由凸轮槽和凸轮销引导，用于当插入系统壳体时在第一卸载位置和第一装载位置之间移动。 磁头由凸轮槽和凸轮销引导，用于在远离盘盒的第二卸载位置和靠近盘盒的第二装载位置之间移动。 通常在张力弹簧的偏压下，磁头被迫从第二装载位置向第二卸载位置移动。 当磁光盘驱动系统的主电源接通时，锁定臂被电磁铁吸引，以将磁头锁定在第二装载位置。 当电磁体被断电时，锁定臂被释放，在拉伸弹簧的偏压下使磁头解锁，从第二装载位置向第二卸载位置移动到第二卸载位置。

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：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：US06243333B1

公开(公告)日：2001-06-05

申请号：US09052098

申请日：1998-03-31

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

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

IPC分类号： G11B700

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

摘要： A magneto-optical disk drive incorporates: a structure to mount a front panel to a frame using a cartridge loading system, using a set of linearly movable control cam plates, to draw a cartridge into a cartridge holder and then to move the cartridge holder to an operating position; a timing control system for the cartridge loading system, which includes a unitary encoder cam gear including a drive gear portion to move the cam plates to lift and lower the cartridge holder, a cam groove portion to draw a cartridge into the cartridge holder, and timing encoders portions to interrupt photo sensors; a shutter mechanism to fully close a cartridge slot with a shutter, both when the drive holds a cartridge and when empty; a magnetic head vertical positioning system to position a magnetic head base against fixed reference surfaces below and a set of resilient members above; a magnetic head horizontal positioning system to first fix the magnetic head base to rotate horizontally about a point, and then to resiliently hold the base from rotating against a rigid member; a magnetic head carriage lock mechanism to hold a magnetic head carriage in its outermost radial position; and a control system for quickly synchronizing magnetic head movement and optical head movement by first moving both heads to an outermost radial position.

摘要翻译： 磁光盘驱动器包括：使用一组线性可移动控制凸轮板将盒前端面板安装到框架的结构，使用一组可线性移动的控制凸轮板将盒子拉入盒架中，然后将盒架移动到 经营职位; 一种用于盒装载系统的定时控制系统，其包括一个整体编码器凸轮齿轮，其包括用于移动凸轮板以提升和降低盒保持器的驱动齿轮部分，将盒子拉入盒保持器的凸轮槽部分， 编码器部分来中断光传感器; 一个快门机构，用于在驱动器固定墨盒时和空时完全关闭带有快门的墨盒槽; 磁头垂直定位系统，用于将磁头基座定位在下面固定的参考表面和一组上面的弹性构件; 一个磁头水平定位系统，用于首先将磁头基座固定在水平方向绕一个点旋转，然后弹性地将基座旋转抵靠刚性构件; 用于将磁头托架保持在其最外径位置的磁头托架锁定机构; 以及用于通过首先将两个头移动到最外径位置来快速地使磁头移动和光头移动同步的控制系统。

公开(公告)号：US5905696A

公开(公告)日：1999-05-18

申请号：US50872

申请日：1998-03-31

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

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

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B11/00

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

摘要： Method and apparatus for synchronizing movements of a magnetic head and an optical head of a magneto-optical disk drive. A magnetic head carriage moves a magnetic head between a standby position and a head application position. An optical head carriage supports an optical head to read at least identification tracks of a magneto-optical disk. A synchronizing device synchronizes linear positions of the magnetic head carriage and the optical head carriage, such that the magnetic head carriage is proximate an outermost position of the magnetic head carriage and the optical head carriage is proximate an outermost position of the optical head carriage when the synchronizing device synchronizes the linear positions of the magnetic head carriage and the optical head carriage.

摘要翻译： 用于使磁头和磁光盘驱动器的光头同步运动的方法和装置。 磁头托架在待机位置和头部施加位置之间移动磁头。 光头托架支撑光头以至少读取磁光盘的识别轨迹。 同步装置使磁头托架和光头托架的线性位置同步，使得磁头托架靠近磁头托架的最外侧位置，并且光​​头托架靠近光头托架的最外位置时 同步装置使磁头托架和光头托架的线性位置同步。