公开(公告)号：US5060207A

公开(公告)日：1991-10-22

申请号：US428507

申请日：1989-10-27

申请人： Tokuya Kaneda ,  Chikazu Yokoi

发明人： Tokuya Kaneda ,  Chikazu Yokoi

IPC分类号： G11B11/10 ,  G11B5/02 ,  G11B11/105 ,  G11B17/04

CPC分类号： G11B17/0434 ,  G11B11/10558

摘要： A magneto-optical recording/reproducing apparatus includes a frame, a cartridge containing therein a magneto-optical recording disk, an optical head for applying an optical beam on the recording disk, an electromagnet for applying a bias magnetic field on the recording disk, a cartridge holder for holding therein the cartridge, a mechanism for reciprocating the cartridge holder between an insertion position and a loading position in which a recording, a reproducing and an erasing operations are carried out, a turn table for rotating the recording disk on the loading position, and a driving mechanism. The driving mechanism drives the electromagnet close to the recording disk when it is to be in the loading position and away from the recording disk when it is to be in the insertion position in opposite directions perpendicular to a plane of the recording disk in accordance with movement of the cartridge holder. The driving mechanism is disposed on the cartridge holder and the electromagnet is so disposed as to interpose the recording disk between the optical head and the electromagnet.

摘要翻译： 一种磁光记录/再现装置，包括框架，其中包含磁光记录盘的盒，用于在记录盘上施加光束的光头，用于在记录盘上施加偏磁场的电磁体， 用于将盒保持在其中的盒保持器，用于使盒保持器在插入位置和执行记录，再现和擦除操作的装载位置之间往复运动的机构，用于使记录盘在装载位置旋转的转台 ，以及驱动机构。 驱动机构在记录盘处于装载位置时驱动电磁体靠近记录盘，并且当其处于垂直于记录盘平面的相反方向的插入位置时，根据移动 的墨盒支架。 驱动机构设置在盒保持器上，并且电磁铁被布置成将记录盘插入在光头和电磁体之间。

公开(公告)号：US4523089A

公开(公告)日：1985-06-11

申请号：US411809

申请日：1982-08-26

申请人： Takeshi Maeda ,  Yasumitsu Mizoguchi ,  Masahiro Takasago ,  Tokuya Kaneda ,  Yoshito Tsunoda

发明人： Takeshi Maeda ,  Yasumitsu Mizoguchi ,  Masahiro Takasago ,  Tokuya Kaneda ,  Yoshito Tsunoda

IPC分类号： G11B7/125 ,  H01S5/068 ,  H01S5/0683 ,  G01J1/32 ,  H01S3/10

CPC分类号： H01S5/06835

摘要： A driving circuit for driving a semiconductor laser by a driving signal containing a pulse signal representing given information and superposed on a DC bias signal includes means for monitoring intensity of laser light emitted when the DC bias is applied, and means for monitoring the intensity of laser light emitted when the pulse signal is applied. The DC bias signal and the pulse signal are varied in dependence on the result of comparisons between the outputs of the monitoring means and respective predetermined reference values.

摘要翻译： 用于通过包含表示给定信息并叠加在DC偏置信号上的脉冲信号的驱动信号驱动半导体激光器的驱动电路包括用于监视施加DC偏压时发射的激光的强度的装置，以及用于监视激光强度的装置 当施加脉冲信号时发出光。 DC偏置信号和脉冲信号根据监视装置的输出与相应的预定参考值之间的比较结果而变化。

公开(公告)号：US4450547A

公开(公告)日：1984-05-22

申请号：US313218

申请日：1981-10-20

申请人： Shigeru Nakamura ,  Takeshi Maeda ,  Toshimitsu Kaku ,  Yoshito Tsunoda ,  Wasao Takasugi ,  Tokuya Kaneda

发明人： Shigeru Nakamura ,  Takeshi Maeda ,  Toshimitsu Kaku ,  Yoshito Tsunoda ,  Wasao Takasugi ,  Tokuya Kaneda

IPC分类号： G02B7/28 ,  G02B27/40 ,  G11B7/09 ,  G11B7/135 ,  G11B7/1381 ,  G11B7/22 ,  G11B7/00

CPC分类号： G11B7/1381 ,  G02B27/40 ,  G11B7/0908 ,  G11B7/0916 ,  G11B7/22

摘要： A focal position detecting optical apparatus wherein a light beam focused by a first optical system is irradiated on an object to be illuminated, focal point images are formed at two foci spaced apart from each other by a cylindrical lens disposed in a path of light beam reflected from the object, and a shielding element having a tip edge making an angle of approximately 45.degree. with an operating axis of the cylindrical lens is inserted at a site between the two foci and at which the light beam has a circular cross section to extract a portion of the light beam travelling between the two foci. The extracted portion is detected by two photodetectors disposed symmetrically with an axis lying in substantially the same direction as the tip edge, and the difference between outputs of the two photodetectors is produced for detection of an actual focal position of the first optical system.

摘要翻译： 一种焦点位置检测光学装置，其中由第一光学系统聚焦的光束照射在待照射的物体上，焦点图像通过设置在反射光束的路径中的柱面透镜彼此间隔开地形成在两个焦点处 并且具有与柱面透镜的操作轴线成约45度的尖端边缘的屏蔽元件插入在两个焦点之间的位置处，并且光束具有圆形横截面以提取 光束在两个焦点之间行进的部分。 提取部分由两个光电检测器检测，两个光电检测器以与尖端边缘基本相同的轴线对称布置，并且产生两个光电检测器的输出之间的差异，用于检测第一光学系统的实际焦点位置。

公开(公告)号：US5267105A

公开(公告)日：1993-11-30

申请号：US753846

申请日：1991-09-03

申请人： Matsuo Morikawa ,  Tokuya Kaneda

发明人： Matsuo Morikawa ,  Tokuya Kaneda

IPC分类号： G11B17/035 ,  G11B17/04 ,  G11B17/043 ,  G11B19/04

CPC分类号： G11B17/04 ,  G11B19/04

摘要： A disk apparatus includes a disk holder for holding a disk, and the disk holder is reciprocatively movable between a loading position and an unloading position. The disk apparatus further includes a motor for driving the disk at the loading position for reading or writing purposes, a power transmission mechanism for converting the rotation of the shaft of the motor into a reciprocative motion and for transmitting the reciprocative motion to the disk holder, and a switching mechanism for switching the power transmission mechanism to an inoperative state so as to prevent the power of the motor from being transmitted from the motor to the disk holder when the motor is operating to rotate the disk for reading or writing purposes.

摘要翻译： 盘装置包括用于保持盘的盘保持器，并且盘保持器可在装载位置和卸载位置之间往复运动。 磁盘装置还包括用于在装载位置驱动磁盘以用于读取或写入的电动机，用于将电动机的轴的旋转转换为往复运动并将往复运动传递到磁盘保持器的动力传递机构， 以及用于将动力传递机构切换到非操作状态的切换机构，以便当电动机正在操作以使盘旋转以用于阅读或书写目的时，防止电动机的电力从电动机传递到盘保持器。

公开(公告)号：US4650332A

公开(公告)日：1987-03-17

申请号：US718278

申请日：1985-04-01

申请人： Koji Muraoka ,  Takeshi Maeda ,  Masahiro Takasago ,  Tokuya Kaneda

发明人： Koji Muraoka ,  Takeshi Maeda ,  Masahiro Takasago ,  Tokuya Kaneda

IPC分类号： G01D5/36 ,  G01D5/38 ,  G01B11/14 ,  G01J1/32

CPC分类号： G01D5/36

摘要： In an optical position detecting apparatus using moire, two light receiving elements are associated with a single light emitting element, and moire or grating portions of an auxiliary moire i.e., fixed sub-scale opposing the respective light receiving elements are arranged such that detection signals produced from the two light receiving elements upon movement of a movable moire i.e., main scale are substantially 180.degree. out of phase. The difference between the detection signals from the light receiving elements is used as a positioning signal, and the sum of the detection signals from the light receiving elements is used as a signal for controlling the input of the light emitting element.

摘要翻译： 在使用莫尔条纹的光学位置检测装置中，两个光接收元件与单个发光元件相关联，并且配置辅助波纹的莫尔条纹或光栅部分，即与各个光接收元件相对的固定子刻度，使得产生检测信号 来自两个光接收元件的移动可移动的莫尔条，即主刻度大致相差180度。 来自光接收元件的检测信号之间的差异用作定位信号，并且来自光接收元件的检测信号的和被用作用于控制发光元件的输入的信号。

公开(公告)号：US5418763A

公开(公告)日：1995-05-23

申请号：US91914

申请日：1993-07-16

申请人： Atsushi Ichikawa ,  Masateru Watanabe ,  Tokuya Kaneda ,  Toshihiko Ishizaka ,  Shigeru Nakamura

发明人： Atsushi Ichikawa ,  Masateru Watanabe ,  Tokuya Kaneda ,  Toshihiko Ishizaka ,  Shigeru Nakamura

IPC分类号： G11B17/22 ,  G11B27/00 ,  G11B27/034 ,  G11B27/34

CPC分类号： G11B27/034 ,  G11B17/225 ,  G11B27/002 ,  G11B2220/20 ,  G11B2220/41 ,  G11B27/34

摘要： A sealed library type optical disc unit is combined with an exchangeable cartridge type disc unit in a data storage and retrieval system. The optical discs within the sealed unit are exposed, as opposed to being encased in cartridges. A data access unit can quickly and efficiently access the exposed optical discs for loading them on an optical disc recording/reproducing unit. A control unit manages the transfer of data from a host computer to the storage and retrieval system. If a data write request exceeds the storage capacity of the optical disc within the sealed space, the excess data is written to the cartridge type disc unit without intervention by an operator and without interruption of the post processor. During a read operation, if data is requested that has been previously recorded on a cartridge type disc, the disc ID is displayed so that an operator can insert the disc into the cartridge type disc unit for the read operation. Data can also be copied from the cartridge type disc to the sealed space discs and vice versa, as well as between the sealed space discs by inputting such a command to a keyboard by an operator.

摘要翻译： 密封库式光盘单元与数据存储和检索系统中的可更换盒式盘单元组合。 密封单元内的光盘被暴露，而不是被包装在墨盒中。 数据存取单元可以快速且有效地访问暴露的光盘，将其装载在光盘记录/重放单元上。 控制单元管理从主机到存储和检索系统的数据传输。 如果数据写入请求超过密封空间内的光盘的存储容量，则多余的数据被写入盒型盘单元，而无需操作人员的介入，而不会中断后处理器。 在读取操作期间，如果要求先前记录在盒式盘上的数据，则显示盘ID，使得操作者可以将盘插入盒式盘单元中进行读取操作。 数据也可以从盒式盘复制到密封空间盘，反之亦然，也可以通过操作员将这样的命令输入到键盘而在密封空间盘之间。

公开(公告)号：US5335217A

公开(公告)日：1994-08-02

申请号：US928086

申请日：1992-08-13

申请人： Tokuya Kaneda ,  Akira Kuribayashi

发明人： Tokuya Kaneda ,  Akira Kuribayashi

IPC分类号： G11B33/14

CPC分类号： G11B33/142

摘要： An optical disk apparatus optically records and reproduces data from an optical information recording medium by an optical head. A first chamber is formed to accommodate at least an optical disk cartridge accommodating therein the recording medium and the optical head and is isolated from ambient air. The first chamber is spatially isolated from heat sources, such as a power supply or a circuit board package which needs cooling. Ambient air is supplied to the heat sources while bypassing the first chamber. In this manner, dust contained in ambient air is prevented from adhering to optical parts such as the optical disk and the optical head.

摘要翻译： 光盘设备通过光学头光学地记录和再现来自光学信息记录介质的数据。 形成第一室以容纳容纳其中的记录介质和光学头的至少一个光盘盒，并与环境空气隔离。 第一个室在空间上与热源隔离，例如需要冷却的电源或电路板封装。 旁路第一室时，环境空气被供给到热源。 以这种方式，防止包含在环境空气中的灰尘粘附到诸如光盘和光学头的光学部件上。

公开(公告)号：US5172362A

公开(公告)日：1992-12-15

申请号：US823011

申请日：1992-01-15

申请人： Toshiyasu Hattori ,  Tokuya Kaneda ,  Masateru Watanabe

发明人： Toshiyasu Hattori ,  Tokuya Kaneda ,  Masateru Watanabe

IPC分类号： G11B17/035 ,  G11B17/04

CPC分类号： G11B17/0434 ,  G11B17/035

摘要： A recording medium loading mechanism for use in a signal processing apparatus has a motor which operates uni-directionally, and a power transmission mechanism operative to convert the rotation of the motor output shaft into reciprocating movements of a recording medium carrier between a loading position and a recording-reproducing position. The power transmission mechanism includes a crank pin (18) connected to the motor output shaft, a lost-motion connection for converting the rotational motion of the motor output shaft into reciprocal movements to move a reciprocating member (19), and cams cooperative with cam followers to transmit the reciprocating movements to the recording medium carrier.

摘要翻译： 用于信号处理装置的记录介质装载机构具有单向操作的马达，以及动力传递机构，其可操作以将马达输出轴的旋转转换为记录介质载体在装载位置和装载位置之间的往复运动 记录再现位置。 动力传递机构包括连接到电动机输出轴的曲柄销（18），用于将电动机输出轴的旋转运动转换成往复运动的移动连接件，以移动往复运动件（19），凸轮与凸轮协作 追随者将往复运动传送到记录介质载体。

公开(公告)号：US4807212A

公开(公告)日：1989-02-21

申请号：US29549

申请日：1987-03-24

申请人： Tokuya Kaneda ,  Akira Saito ,  Masateru Watanabe ,  Tomoji Osumi ,  Nobuo Suzuki

发明人： Tokuya Kaneda ,  Akira Saito ,  Masateru Watanabe ,  Tomoji Osumi ,  Nobuo Suzuki

IPC分类号： G11B7/08 ,  G11B7/09 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/22

摘要： The present invention relates to an optical head of an optical disk apparatus and a method of making the same, and more particularly, to an optical head which projects a light spot onto a track recess, receives the reflected light of the light spot by at least two photoelectric converters and focuses the light spot based on a differential output from the photoelectric converters. The optical head can accurately focus the light spot even if the reflected light beams that are nonuniform in intensity due to the influence of the comatic aberration of a lens composing the optical head are projected on to the photoelectric converters. This is because the influence of the comatic aberration of the lens is corrected for by marking the direction of central parallel ones of S-like interference fringes on the lens and optically forming a predetermined angle between the marked direction and the direction of the track recess.

摘要翻译： 光盘装置的光头及其制造方法技术领域本发明涉及一种光盘装置的光头及其制造方法，更具体地，涉及将光点投射到轨道凹部上的光学头，至少接收光点的反射光 两个光电转换器，基于光电转换器的差分输出聚焦光点。 即使由于构成光头的透镜的旋转像差的影响而强度不均匀的反射光束投射到光电转换器上，光头也能够准确地聚焦光斑。 这是因为通过在透镜上标记S形干涉条纹的中心平行的方向并且在标记的方向和轨道凹槽的方向之间光学地形成预定角度来校正透镜的彗形像差的影响。