利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.016 秒)

    Speed and phase control system
    1.
    发明授权
    Speed and phase control system 失效
    速度和相位控制系统

    公开(公告)号：US4543516A

    公开(公告)日：1985-09-24

    申请号：US682259

    申请日：1984-12-17

    申请人： Yasunori Kobori ,  Kaneyuki Okamoto ,  Isao Fukushima ,  Masataka Sekiya ,  Hideo Nishijima ,  Kenji Kano ,  Tetsuo Sakae

    发明人： Yasunori Kobori ,  Kaneyuki Okamoto ,  Isao Fukushima ,  Masataka Sekiya ,  Hideo Nishijima ,  Kenji Kano ,  Tetsuo Sakae

    IPC分类号： G05D13/62 ,  G05B11/36 ,  H02P23/00 ,  H02P29/00 ,  H02P5/06

    CPC分类号： H02P23/186 ,  Y10S388/912 ,  Y10S388/922

    摘要： Disclosed is a speed and phase control system for a moving apparatus driven by an electric motor, or the like, and provided with a speed control system for controlling the moving apparatus to an initially set speed, a phase control system for synchronizing the phase of the moving apparatus with a reference signal, and an error correction device storing therein a target value of and for comparing an actual speed or a phase of the moving apparatus with the target value to detect an error therebetween to thereby correct the initially set value in accordance with the error, whereby control is made such that the moving apparatus is operated at the target value of speed and phase thereof. Further, the error correction device is cut off from the speed control system when the speed reaches a value near the target value and at the same time the operation of the phase control system is started.

    摘要翻译： 公开了一种用于由电动机等驱动的移动装置的速度和相位控制系统，并且设置有用于将移动装置控制到初始设定速度的速度控制系统，用于使运动装置的相位同步的相位控制系统 具有参考信号的移动装置和其中存储有移动装置的实际速度或相位的目标值和用于比较目标值的误差校正装置，以检测其间的误差，从而根据 该误差由此进行控制，使得移动装置以其速度和相位的目标值运行。 此外，当速度达到接近目标值的值并且同时开始相位控制系统的操作时，纠错装置从速度控制系统切断。

    Slow-motion device of magnetic recording and reproducing apparatus
    2.
    发明授权
    Slow-motion device of magnetic recording and reproducing apparatus 失效
    磁记录和再现装置的慢动作装置

    公开(公告)号：US4774598A

    公开(公告)日：1988-09-27

    申请号：US857235

    申请日：1986-04-29

    申请人： Masataka Sekiya ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Eiichi Funaki ,  Isao Fukushima

    发明人： Masataka Sekiya ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Eiichi Funaki ,  Isao Fukushima

    IPC分类号： H04N5/93 ,  G11B15/18 ,  H04N5/783 ,  H04N5/78

    CPC分类号： G11B15/1875

    摘要： In a slow-motion device of a helical scan type video tape recorder, detection is effected to detect a noise in a reproduced signal which is caused when the magnetic tape is fed such that the magnetic heads which have reproduced a preceding still image at a track transfer to the succeeding track and thereafter the magnetic heads scan the succeeding track, and the position of the magnetic tape is controlled by a tape control system so that the noise is confined within a position at a noise bar due to the noise is prevented from being displayed on the reproduction screen.

    摘要翻译： 在螺旋扫描型磁带录像机的慢动作装置中，进行检测，以检测当磁带被馈送时引起的再现信号中的噪声，使得在轨道上再现了先前的静止图像的磁头 转移到后续轨道，然后磁头扫描后续轨道，并且磁带的位置由磁带控制系统控制，使得噪声被限制在噪声条的位置内，由于噪声被阻止 显示在再现画面上。

    Auto-tracking apparatus of a magnetic recording/reproducing apparatus
    3.
    发明授权
    Auto-tracking apparatus of a magnetic recording/reproducing apparatus 失效
    磁记录/再现装置的自动跟踪装置

    公开(公告)号：US4757394A

    公开(公告)日：1988-07-12

    申请号：US792271

    申请日：1985-10-28

    申请人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

    发明人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

    IPC分类号： H04N5/7826 ,  G11B5/008 ,  G11B5/584 ,  G11B15/087 ,  G11B15/467 ,  H04N5/782

    CPC分类号： G11B5/00878 ,  G11B15/087 ,  G11B15/4675

    摘要： An auto-tracking apparatus of a magnetic recording/reproducing apparatus has a circuit for discriminating whether the audio signals recorded on a magnetic tape to be reproduced were recorded by audio rotary heads or a fixed head, and a circuit for selecting outputs of the audio rotary heads in the case of the Hi-Fi recorded magnetic tape by the audio rotary heads and outputs of the video rotary heads in the case where it is determined that the magnetic tape is the normal recorded tape by the fixed head on the basis of the result of the discrimination, and performs the auto-tracking on the basis of the selected outputs. With this arrangement, the auto-tracking can be carried out irrespective of whether the magnetic tape is the normal recorded tape by the conventional fixed head or the Hi-Fi recorded tape by the rotary heads.

    摘要翻译： 磁记录/再现装置的自动跟踪装置具有用于鉴别记录在要再现的磁带上的音频信号是由音频旋转头还是固定头记录的电路，以及用于选择音频旋转的输出的电路 在通过固定头根据结果确定磁带是正常记录磁带的情况下，通过音频旋转头的Hi-Fi记录磁带和视频旋转磁头的输出的磁头 并且基于所选择的输出执行自动跟踪。 利用这种布置，可以执行自动跟踪，而不管磁带是通过常规固定头还是通过旋转头的Hi-Fi记录磁带的正常记录磁带。

    Switching regulator system for a motor driving circuit
    6.
    发明授权
    Switching regulator system for a motor driving circuit 失效
    用于电机驱动电路的开关稳压器系统

    公开(公告)号：US4682096A

    公开(公告)日：1987-07-21

    申请号：US786500

    申请日：1985-10-11

    申请人： Hideo Nishijima ,  Takayasu Ito ,  Isao Fukushima

    发明人： Hideo Nishijima ,  Takayasu Ito ,  Isao Fukushima

    IPC分类号： H02P6/04 ,  H02P6/06 ,  H02P6/08 ,  H02P5/28

    CPC分类号： H02P6/08

    摘要： A motor driving circuit includes an equivalent power PNP transistor constituted by a Darlington connection of a small-current PNP transistor and a large-current NPN transistor, and a switching regulator of a step-down and variable type is provided between the collector of the NPN transistor and the emitter of the PNP transistor. Electric power loss in the motor driving circuit can be reduced, and the electric power required to operate the motor driving circuit can be saved.

    摘要翻译： 电动机驱动电路包括由小电流PNP晶体管和大电流NPN晶体管的达林顿连接构成的等效功率PNP晶体管，并且在NPN的集电极之间设置降压型和可变型的开关调节器 晶体管和PNP晶体管的发射极。 可以减少电动机驱动电路中的电力损失，并且可以节省操作电动机驱动电路所需的电力。

    Method and apparatus for magnetic recording and reproducing
    8.
    发明授权
    Method and apparatus for magnetic recording and reproducing 失效
    用于磁记录和再现的方法和装置

    公开(公告)号：US4482926A

    公开(公告)日：1984-11-13

    申请号：US318256

    申请日：1981-11-04

    申请人： Hideo Nishijima ,  Isao Fukushima ,  Masao Hibi

    发明人： Hideo Nishijima ,  Isao Fukushima ,  Masao Hibi

    IPC分类号： G11B27/02 ,  G11B15/087 ,  G11B15/18 ,  G11B27/024 ,  H04N5/78 ,  G11B27/08

    CPC分类号： G11B27/024 ,  G11B15/087 ,  G11B15/1808 ,  G11B2220/90

    摘要： A method for magnetic recording and reproducing suitable for the discontinuous recording, in which the magnetic tape is rewound during a predetermined length of time, the number of the synchronization pulses recorded on the magnetic tape is counted and stored during the rewinding of the magnetic tape, and the magnetic recording is re-started when the number of the synchronization pulses, counted during the winding of the magnetic tape after the pause period, reaches the value equal to the stored number of the synchronization pulses, whereby a satisfactory continuity is established between the pictures recorded before and after a pause period.

    摘要翻译： 一种适用于不连续记录的磁记录和再现方法，其中磁带在预定时间长度内被重绕，记录在磁带上的同步脉冲的数量在磁带的倒带期间被计数和存储， 并且当在暂停时段之后的磁带卷绕期间计数的同步脉冲的数量达到等于存储的同步脉冲数的值时，磁记录重新开始，由此在 在暂停期之前和之后记录的图像。

    Apparatus for driving brushless motor
    10.
    发明授权
    Apparatus for driving brushless motor 失效
    无刷电机驱动装置

    公开(公告)号：US4651067A

    公开(公告)日：1987-03-17

    申请号：US703906

    申请日：1985-02-21

    申请人： Takayasu Ito ,  Hideo Nishijima ,  Isao Fukushima ,  Yoshio Fujimori ,  Yasunori Kobori

    发明人： Takayasu Ito ,  Hideo Nishijima ,  Isao Fukushima ,  Yoshio Fujimori ,  Yasunori Kobori

    IPC分类号： H02P6/10 ,  H02P6/02

    CPC分类号： H02P6/10

    摘要： An apparatus for driving a brushless motor, in which a ripple appearing in the rotation torque of the motor is cancelled by driving the motor with a signal current whose phase is opposite to that of and which has a waveform symmetrical with that of the torque ripple waveform, so that the motor can rotate accurately without any speed variation. In order to obtain such a signal current waveform, counter-electromotive forces induced in the stator coils of the motor are detected, and the level of the signal indicative of the detected counter-electromotive forces is controlled depending on the load and rotation speed of the motor to provide a control signal for controlling the motor drive current.

    摘要翻译： 一种用于驱动无刷电动机的装置，其中通过用相位相反的信号电流驱动电动机来消除电动机的旋转转矩中出现的波动，并且其具有与转矩脉动波形对称的波形 ，使得电机可以精确地旋转而没有任何速度变化。 为了获得这样的信号电流波形，检测在电动机的定子线圈中感应的反电动势，并且根据负载和转速来控制表示检测到的反电动势的信号的电平 电机提供用于控制电机驱动电流的控制信号。