公开(公告)号：US4661735A

公开(公告)日：1987-04-28

申请号：US774831

申请日：1985-09-11

申请人： Tatsuya Miki ,  Takashi Saito ,  Yukihiro Kishima

发明人： Tatsuya Miki ,  Takashi Saito ,  Yukihiro Kishima

IPC分类号： H02K5/00 ,  G11B5/55 ,  G11B19/20 ,  G11B21/02 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14 ,  H02K1/18 ,  H02K5/16 ,  H02K7/14 ,  H02K16/00 ,  G11B21/08 ,  H02K17/34

CPC分类号： G11B5/5521 ,  G11B19/20 ,  G11B25/043 ,  G11B33/121 ,  G11B33/1493 ,  H02K16/00 ,  H02K7/14 ,  H02K1/182 ,  H02K5/163

摘要： A plurality of motors are arranged on opposite surfaces of a single magnetic base plate such that they are magnetically isolated from each other by the base plate. Such an arrangement prevents the motors from magnetically interfering with each other and, thereby, allows them to be positioned as close to each other as possible, in order to cut down the overall size of an apparatus in which the motors are installed.

摘要翻译： 多个电动机被布置在单个磁性基板的相对表面上，使得它们通过基板彼此磁隔离。 这样一种布置防止电动机彼此之间产生磁力干扰，从而使它们能够尽可能靠近地定位，以便减小其中安装有电动机的装置的总体尺寸。

公开(公告)号：US4416006A

公开(公告)日：1983-11-15

申请号：US403022

申请日：1982-07-29

申请人： Masatsugu Kitamura ,  Hideo Onoe ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

发明人： Masatsugu Kitamura ,  Hideo Onoe ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

IPC分类号： G11B3/095 ,  G11B19/24 ,  G11B19/28 ,  G11B17/00

CPC分类号： G11B19/24 ,  G11B3/0957

摘要： A record disc playing apparatus comprises an address signal generating unit for generating address signals corresponding to horizontal rotational angular positions of a tone arm, a device for generating a rotational angular velocity signal corresponding to the rotational angular velocity of the tone arm, a circuit for controlling the rotation of a motor for driving a turntable, a control device supplied with the address signals and having a memory device from which is from which read out information corresponding to the addresses indicated by the address signals, and an attenuation circuit supplied with the rotational angular velocity signal and operating with an attenuation quantity, with respect to the rotational angular velocity signal, which quantity is varied by a signal from the control device. The rotational angular velocity signal corresponds to the quantity of any eccentricity of the record disc. The control device producing as output signals based on the information thus read out. The attenuation circuit supplying an output signal to the control device. The rotation of the motor is so controlled that a rotational irregularity due to any eccentricity of the record disc is corrected for.

摘要翻译： 记录盘播放装置包括地址信号产生单元，用于产生与音调臂的水平旋转角度位置对应的地址信号，用于产生与音调臂的旋转角速度相对应的旋转角速度信号的装置，用于控制的电路 用于驱动转台的电动机的旋转，提供有地址信号的控制装置，并具有存储装置，从存储装置读出与由地址信号指示的地址对应的信息，以及提供有旋转角度的衰减电路 速度信号，并且相对于旋转角速度信号以衰减量操作，该数量由来自控制装置的信号变化。 旋转角速度信号对应于记录盘的任何偏心量的数量。 控制装置根据由此读出的信息产生输出信号。 所述衰减电路向所述控制装置提供输出信号。 马达的旋转受到如此控制，使得由于记录盘的任何偏心而导致的旋转不规则性被校正。

公开(公告)号：US4437181A

公开(公告)日：1984-03-13

申请号：US182407

申请日：1980-08-26

申请人： Yukihiro Kishima

发明人： Yukihiro Kishima

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B3/12 ,  G11B3/06

CPC分类号： G11B3/08512 ,  G11B3/0957 ,  G11B3/125

摘要： A record disc playing apparatus has a tone arm position detecting device which comprises a position detection part comprising a plurality of reading elements aligned in line, a code part comprising a plurality of rows of code patterns shifted in the direction of alignment of reading elements and extending along substantially perpendicular directions to the alignment direction of reading elements, and an encoder which is supplied with the output signal of the position detection part and produces address signals according to the relative position of the position detection part and the reading part. One of the code part and the position detection part is fixed and the other unitarily undergoes displacement with a tone arm of the record disc playing apparatus. The position detection part relatively scans the code patterns of the code part, the code patterns have combinations of existence and non-existence portions in the alignment direction of the reading elements, the combinations are arranged differently according to the position of the relative scanning by the position detection part.

摘要翻译： 记录盘播放装置具有音调位置检测装置，其包括位置检测部分，该位置检测部分包括排列成行的多个读取元件，编码部分包括在读取元件的对准方向上偏移的多行代码图形，并且延伸 沿着与读取元件的排列方向大体上垂直的方向，以及编码器，其被提供有位置检测部分的输出信号，并且根据位置检测部分和读取部分的相对位置产生地址信号。 代码部分和位置检测部分中的一个是固定的，另一个与记录盘播放装置的音臂一体地进行位移。 位置检测部分相对地扫描代码部分的代码模式，代码模式在读取元件的对准方向上具有存在和不存在部分的组合，根据相对扫描的位置，组合被不同地布置 位置检测部分。

公开(公告)号：US4361880A

公开(公告)日：1982-11-30

申请号：US156775

申请日：1980-06-04

申请人： Masatsugu Kitamura ,  Hideo Onoye ,  Tsuyoshi Ono ,  Fumiaki Ohno ,  Yukihiro Kishima ,  Yutaka Morita

发明人： Masatsugu Kitamura ,  Hideo Onoye ,  Tsuyoshi Ono ,  Fumiaki Ohno ,  Yukihiro Kishima ,  Yutaka Morita

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B17/06

CPC分类号： G11B3/0957 ,  G11B3/08512

摘要： A pickup arm is equipped with a photo sensor assembly for detecting non-recorded portions on a disk. The sensor is located in such a position that horizontal distance between the stylus tip and the detecting point of the sensor measured in the direction of the radius of the turntable is substantially constant throughout the possible rotational angle of the arm. The rotational angle of the arm is measured and is modified by a given angle corresponding to the above mentioned distance. When this distance deviates from a standard value on replacement of the same with another, the variation may be readily corrected by manipulating a potentiometer. Prior to performing an automatic playback, the disk is scanned by the sensor and signals indicative of the arm angles corresponding to the non-recorded portions are stored. After scanning, the arm is controlled by comparing the actual angle of the arm with the prestored angles, to place the stylus on a right position on the disk to perform automatic playback in accordance with programmed information.

摘要翻译： 拾取臂配备有用于检测盘上未记录部分的光传感器组件。 传感器位于这样一个位置上，即在手臂半径的方向上测量的触针尖端和传感器的检测点之间的水平距离在臂的可能的旋转角度内基本上是恒定的。 测量臂的旋转角度，并将其对应于上述距离的给定角度进行修改。 当该距离在与另一个更换相同时偏离标准值时，可以通过操纵电位计来容易地校正变化。 在执行自动重放之前，通过传感器扫描盘，并且存储指示对应于未记录部分的臂角度的信号。 扫描后，通过将手臂的实际角度与预先存储的角度进行比较来控制手臂，以将触控笔放置在磁盘上的正确位置，以根据编程信息执行自动播放。

公开(公告)号：US4342110A

公开(公告)日：1982-07-27

申请号：US165372

申请日：1980-07-02

申请人： Masatsugu Kitamura ,  Hideo Onoye ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

发明人： Masatsugu Kitamura ,  Hideo Onoye ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

IPC分类号： G11B3/28 ,  G11B3/085 ,  G11B3/095 ,  G11B3/12 ,  G11B17/06

CPC分类号： G11B3/0957 ,  G11B3/08512 ,  G11B3/127

摘要： A record disc playing apparatus comprises a horizontal drive motor for imparting a horizontal rotational force to a tone arm an address signal generating device for generating an address signal corresponding to a horizontal rotational angle position of the tone arm and a control device including a memory device for storing the magnitude of an inside force to be produced on the tone arm in correspondence with the horizontal rotational angle position of the tone arm. The address signal generating device supplies the generated address signal to the control device. The control device reads out the magnitude of the inside force from the memory device corresponding to the supplied address signal, produces a signal for cancelling the inside force at the rotational angle position of the tone arm corresponding to the read out magnitude of the inside force and supplies the same to the horizontal drive motor.

摘要翻译： 记录盘播放装置包括：水平驱动电动机，用于向音调臂施加水平旋转力;地址信号发生装置，用于产生对应于音调臂的水平旋转角度位置的地址信号;以及控制装置，包括：存储装置， 与音调臂的水平旋转角位置对应地存储要产生的音调臂上的内力的大小。 地址信号发生装置将产生的地址信号提供给控制装置。 控制装置根据所提供的地址信号读出来自存储装置的内力的大小，产生用于消除对应于内力的读出量的音调臂的旋转角度位置处的内力的信号， 提供相同的水平驱动电机。