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公开(公告)号：US5010246A
公开(公告)日：1991-04-23
申请号：US464975
申请日：1990-01-16
摘要： An optical head apparatus applicable to an optical disc apparatus comprises, a case body having an open surface and a window through which an opto-electronic component can be positioned and housing optical components inside it, a lid being attachable and detachable with respect to the open surface of the case body, and a flexible printed circuit board having a base portion which is adhered to the lid and on which electronic components are mounted and a protruding portion protruding from the base portion and having an opto-electronic component fixed to the distal end portion of it, the opto-electronic component being electrically connected with an electronic circuit which is formed by the electronic components, the distal end portion of the protruding portion of the flexible printed circuit board being fixed to the case body so that the opto-electronic component is position to the window.
摘要翻译： 适用于光盘装置的光头装置包括：具有开放表面的窗体和可以定位光电元件的窗口，并且在其内容纳光学元件;盖可相对于打开的 壳体的表面和柔性印刷电路板，其具有粘附到盖并且安装有电子部件的基部和从基部突出的突出部分，并且具有固定到远端的光电部件 所述光电元件与由所述电子部件形成的电子电路电连接，所述柔性印刷电路板的突出部的前端部固定于所述壳体，使得所述光电子 组件是窗口的位置。
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12.发明授权Optical recording and reproducing apparatus for verifying correct writing of information signal 失效用于验证信息信号的正确写入的光学记录和再现装置
公开(公告)号：US4935914A
公开(公告)日：1990-06-19
申请号：US209838
申请日：1988-06-22
CPC分类号： G11B20/1879 , G11B19/04 , G11B7/004 , G11B7/125
摘要： An optical recording and reproducing apparatus includes a controlling circuit for controlling a light intensity of a laser beam emitted by a laser diode. The controlling circuit sets the light intensity in a verifying mode at a level lower than those in data read and write modes. The verifying mode is a mode for verifying whether or not the recording or reproducing apparatus can operate correctly. The apparatus also comprises a verifying circuit for comparing the reproduced information signal obtained in the verifying mode with a reference information signal which corresponds to the information signal written into the optical disc.
摘要翻译： 光记录和重放装置包括一个控制电路，用于控制由激光二极管发射的激光束的光强度。 控制电路将验证模式中的光强设置为低于数据读和写模式的光强度。 验证模式是用于验证记录或再现设备是否能够正常工作的模式。 该装置还包括验证电路，用于将在验证模式中获得的再现信息信号与对应于写入光盘的信息信号的参考信息信号进行比较。
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13.发明授权
公开(公告)号：US4924566A
公开(公告)日：1990-05-15
申请号：US376180
申请日：1989-07-07
申请人： Hideo Shiraishi , Tsutomu Morita
发明人： Hideo Shiraishi , Tsutomu Morita
CPC分类号： D02G1/165 , F16D69/02 , F16D69/026 , Y10T428/213 , Y10T428/2933
摘要： Disclosed is a method for making a reinforcing element for use in asbestos-free friction materials. According to the method, heterogenous strands are joined together, without twisting them, and subjected to a fluid jet and to a rubber compounding material. At least one of the strands is fed to the multiplying stage at an overfeed rate.
摘要翻译： 公开了一种制造用于无石棉摩擦材料的增强元件的方法。 根据该方法，将不均匀的股线连接在一起，而不扭曲它们，并进行流体射流和橡胶配混材料。 至少一条绞线以过量速率进给到倍增阶段。
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14.发明授权Constant linear velocity optical disk apparatus having improved circuitry for speed data access 失效具有用于速度数据访问的改进电路的恒定线速度光盘装置
公开(公告)号：US5627811A
公开(公告)日：1997-05-06
申请号：US488658
申请日：1995-06-08
申请人： Tsutomu Morita , Hiroyuki Onda , Masasi Tanaka , Katsumi Aoyama
发明人： Tsutomu Morita , Hiroyuki Onda , Masasi Tanaka , Katsumi Aoyama
CPC分类号： G11B7/08505 , G11B19/2009 , G11B19/247 , G11B19/26
摘要： An optical disk apparatus includes a disk servo unit which generates a servo signal based on a data signal read from an optical disk. The servo signal is supplied to a disk motor to control a rotation of the motor so that a linear velocity of the disk is kept constant when data is read from or written onto the disk. The disk servo unit is connected to the motor when the data is read from or written onto the disk, so that the servo signal is supplied to the motor, and the disk servo unit is disconnected from the motor when a pickup jumps from a present track of the disk to a destination track thereof so that the supply of the servo signal to the motor is inhibited. A velocity change signal which enables the motor to increase or decrease a rotating speed of the motor is generated depending on which one of two directions of the track jump is specified by a direction signal. A time signal which defines an estimated time of the track jump required to change an angular velocity at the present track to an angular velocity at the destination track is generated. The optical disk apparatus supplies the velocity change signal to the motor during the estimated time.
摘要翻译： 光盘装置包括：盘伺服单元，其基于从光盘读取的数据信号产生伺服信号。 伺服信号被提供给盘马达，以控制马达的旋转，使得当数据从盘读取或写入盘时，盘的线速度保持恒定。 当数据从盘读取或写入盘时，盘伺服单元连接到电动机，使得伺服信号被提供给电动机，并且当拾取器从当前轨迹跳跃时，盘伺服单元与电动机断开连接 的磁盘到目标磁道，从而禁止向电机提供伺服信号。 根据通过方向信号指定轨道跳跃的两个方向中的哪一个，使得电动机能够增大或减小电动机的转速的速度变化信号。 产生定义将目前轨道处的角速度改变为目的地轨道的角速度所需的轨道跳跃的估计时间的时间信号。 光盘装置在估计时间期间向马达提供速度改变信号。
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公开(公告)号：US5050154A
公开(公告)日：1991-09-17
申请号：US277337
申请日：1988-11-29
申请人： Kenji Shimozawa , Tsutomu Morita
发明人： Kenji Shimozawa , Tsutomu Morita
CPC分类号： G11B7/12
摘要： An optical recording/reproducing module comprises a housing defined with a depression, a focusing actuator provided on one side of the housing for carrying an objective lens such that the lens is movable in a direction perpendicular to the aforementioned one side, an optical system accommodated in the depression, the optical system includes an optical source for producing a first optical beam to be directed to the objective lens, an optical detector for detecting a second optical beam received by the objective lens and incident to the optical detector, the optical detector further produces an electrical output signal responsive to the second optical beam, and an array of optical elements for guiding the first optical beam produced by the optical source to the objective lens and for guiding the second optical beam received by the objective lens to the optical detector, a cover lid adapted to be mounted on the one side of the housing, the cover lid has a shape adapted to close the depression, and an electrical system provided on the cover lid for driving the optical source and for amplifying the electrical output signal from said optical detector.
摘要翻译： 光学记录/再现模块包括限定有凹陷的壳体，设置在壳体的一侧的聚焦致动器，用于承载物镜，使得透镜可在垂直于上述一侧的方向上移动，光学系统容纳在 光学系统包括用于产生要被引导到物镜的第一光束的光源，用于检测由物镜接收并入射到光学检测器的第二光束的光学检测器，光学检测器进一步产生 响应于第二光束的电输出信号和用于将由光源产生的第一光束引导到物镜并用于将由物镜接收的第二光束引导到光学检测器的光学元件阵列， 盖盖适于安装在壳体的一侧上，盖盖具有适于封闭凹部的形状 以及设置在盖盖上用于驱动光源并放大来自所述光学检测器的电输出信号的电气系统。
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16.发明授权Power saving circuit arrangement for an apparatus for data transfer with flexible magnetic disk or the like 失效用于具有柔性磁盘等的数据传输装置的节电电路装置
公开(公告)号：US4700243A
公开(公告)日：1987-10-13
申请号：US634320
申请日：1984-07-25
申请人： Hiroshi Tsuyuguchi , Tsutomu Morita , Makoto Shoji
发明人： Hiroshi Tsuyuguchi , Tsutomu Morita , Makoto Shoji
摘要： A floppy disk drive which, together with one or more like devices, is daisy chained to host equipment comprising a central processor unit and an associated controller. Each disk drive comprises a disk motor for rotating a record disk under the control of a disk motor drive circuit, a head motor for incrementally moving a transducer head radially of the record disk under the control of a head motor drive circuit, and a read/write circuit for processing data read from, or to be written on, the record disk via the transducer head. The host equipment produces, among other control signals, a MOTOR ON signal for the on/off control of the disk motor via the disk motor drive circuit. In order to avoid waste of electric power, not only the disk motor drive circuit but also at least one, preferably both, of the head motor drive circuit and the read/write circuit is connected to a common power line via a power control switch which is closed only when the MOTOR ON signal is in a prescribed state to cause rotation of the disk motor.
摘要翻译： 一个软盘驱动器与一个或多个相似的设备一起被菊花链链接到包括中央处理器单元和相关控制器的主机设备。 每个磁盘驱动器包括用于在盘式电动机驱动电路的控制下旋转记录盘的磁盘电动机，用于在磁头电动机驱动电路的控制下使记录盘的径向逐渐移动的磁头电动机，以及读/ 写入电路，用于处理通过换能器头从记录盘读取或写入的数据。 除了其他控制信号之外，主机还经由盘式电动机驱动电路产生用于盘式电动机的开/关控制的MOTOR ON信号。 为了避免电力浪费，不仅磁头马达驱动电路，而且磁头马达驱动电路和读/写电路中的至少一个，优选两个都经由功率控制开关连接到公共电源线，功率控制开关 只有当MOTOR ON信号处于规定状态才能使盘驱动器旋转。
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17.发明授权
公开(公告)号：US4688112A
公开(公告)日：1987-08-18
申请号：US705561
申请日：1985-02-26
摘要： A flexible magnetic disk drive is disclosed which has a disk drive motor for imparting rotation to the magnetic disk under the control of a "motor on" signal, and a stepping motor capable of stepwise rotation in response to stepping pulses for transporting a transducer head or heads radially of the magnetic disk for track to track accessing. Connected to the transducer heads for processing data transferred between them and the magnetic disk, a read/write circuit is connected to a supply terminal via a switching transistor. This switching transistor has connected to its base a switch control circuit for holding the switching transistor nonconductive when the disk drive motor is out of rotation and when the stepping motor is in rotation, and for holding the transistor conductive at least during the progress of data transfer between the transducer heads and the magnetic disk. Preferably, the switch control circuit is further adapted to hold the power control switch open from the moment the disk drive motor is set into rotation to the moment the speed of rotation of the disk drive motor builds up to a prescribed percentage of a normal speed at which data transfer is effected between the transducer heads and the record medium.
摘要翻译： 公开了一种柔性磁盘驱动器，其具有用于在“电动机接通”信号的控制下向磁盘施加旋转的盘驱动电动机，以及能够响应于用于传送换能器头的步进脉冲而逐步旋转的步进电机， 在磁盘的径向磁头上磁道跟踪进入。 连接到换能器头用于处理在它们与磁盘之间传送的数据，读/写电路经由开关晶体管连接到电源端子。 该开关晶体管连接到其基极，当盘驱动电动机不转动时以及当步进电动机转动时，开关控制电路用于保持开关晶体管不导通，并且至少在数据传输过程中保持晶体管导通 在换能器头和磁盘之间。 优选地，开关控制电路还适于将电源控制开关从磁盘驱动电动机设置旋转的时刻开始到盘驱动电动机的旋转速度达到正常速度的规定百分比的时刻 在传感器头和记录介质之间进行数据传送。
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