公开(公告)号：US4811133A

公开(公告)日：1989-03-07

申请号：US864685

申请日：1986-05-19

申请人： Katsuo Nakadai ,  Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

发明人： Katsuo Nakadai ,  Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G05B11/18

CPC分类号： G11B21/083 ,  G11B5/5556 ,  G11B5/59677

摘要： An apparatus for positioning a recording or playback head over a rotating recording medium, such as a magnetic disk. When access to a desired track is attempted, the head is quickly moved and placed within a range close to the track under open loop control. When the head enters the range close to the desired track, the head control is switched to servo feed under closed loop control. During the servo feed, the head is moved according to a head position signal representing the actual position of the head, the head position signal being given by a head position detector having a portion moving together with the head. The head is thus directed to a predetermined position according to an error signal corresponding to the deviation of the head position. When the head has passed through the desired position, driving force in the reverse direction is generated and the head is forced back toward the desired position. The head thus oscillates around the desired position but converges to it.

摘要翻译： 一种用于在诸如磁盘的旋转记录介质上定位记录或重放头的装置。 当尝试访问所需的轨道时，头部可以快速移动并放置在开环控制下靠近轨道的范围内。 当磁头进入靠近所需轨道的范围时，磁头控制在闭环控制下切换到伺服进给。 在伺服进给期间，头部根据表示头部实际位置的头部位置信号移动，头部位置信号由具有与头部一起移动的部分的头部位置检测器给出。 因此，根据与头部位置的偏差相对应的误差信号，头部被引导到预定位置。 当头部已经通过所需位置时，产生相反方向的驱动力，并且头部被迫回到所需位置。 因此，头部围绕期望的位置振荡，但是会聚到它。

公开(公告)号：US4803568A

公开(公告)日：1989-02-07

申请号：US937038

申请日：1986-12-02

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

IPC分类号： H02P29/00 ,  G11B19/28 ,  H02P23/00 ,  H04N5/781 ,  G11B19/20

CPC分类号： G11B19/28 ,  H02P23/186 ,  Y10S388/903 ,  Y10S388/912 ,  Y10S388/921

摘要： A motor control apparatus includes a driving unit having a motor for rotating a body at a predetermined rotating speed; a reference position detecting unit for determining a reference position in a rotation of the body and for generating a phase signal representing the reference position; a phase controller for controlling the driving unit by use of the bias signal as a reference so that a generation of the phase signal causes the rotation of the body to be brought within a predetermined range with respect to a reference signal; and a bias control unit interconnected to the phase controller for determining a difference in phase of the phase signal from the reference signal to provide the phase controller with the bias signal according to the determined difference.

摘要翻译： 一种电动机控制装置，包括：驱动单元，具有用于以预定转速旋转主体的电动机; 基准位置检测单元，用于确定身体旋转中的基准位置，并产生表示基准位置的相位信号; 相位控制器，用于通过使用偏置信号作为参考来控制驱动单元，使得相位信号的产生使得主体的旋转相对于参考信号进入预定范围; 以及偏置控制单元，其互连到所述相位控制器，用于确定所述相位信号与所述参考信号的相位差，以根据所确定的差向相位控制器提供偏置信号。

公开(公告)号：US4827332A

公开(公告)日：1989-05-02

申请号：US90513

申请日：1987-08-28

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kimihide Takahashi ,  Kazuya Oda

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kimihide Takahashi ,  Kazuya Oda

IPC分类号： H04N9/04 ,  H04N9/73

CPC分类号： H04N9/735

摘要： A still video camera includes a color temperature sensor for detecting the color temperature of ambient light which is used in the color balance adjustment of video signals outputted from an image pickup system. The camera further includes a strobe emission circuit which produces a signal indicating when strobe emission is capable of being performed. A control circuit controls the adjustment of the color balance of the video signals on the basis of the color temperature detected by the color sensor in the absence of a strobe ready signal. Upon the activation of a shutter release switch, the control unit determines whether or not a strobe ready signal is present. If a strobe ready signal is present, the control unit fixes the color temperature to a predetermined constant value for color balance adjustment. Color balance adjustment is therefore made on the basis of a fixed constant color temperature corresponding to strobe light photography only when strobe light emission is to actually occur and prevents color balance from being adjusted on the basis of the fixed constant color temperature when the strobe emission circuit is in a ready state, but strobe light photography is not to be performed.

摘要翻译： 静止摄像机包括色温传感器，用于检测在从摄像系统输出的视频信号的色彩平衡调整中使用的环境光的色温。 相机还包括选通发光电路，其产生指示何时能够执行频闪发射的信号。 控制电路基于在没有选通准备就绪信号的情况下由颜色传感器检测到的色温来控制视频信号的色彩平衡的调整。 在启动快门释放开关时，控制单元确定是否存在选通准备就绪信号。 如果存在选通信号准备好信号，则控制单元将色温固定为预定的恒定值，以进行色彩平衡调整。 因此，只有当实际发生闪光发光时才基于与闪光灯拍摄相对应的固定恒定色温来进行色彩平衡调整，并且当选通发光电路基于固定恒定色温时，防止色彩平衡被调整 处于就绪状态，但不会执行闪光灯摄影。

公开(公告)号：US4779260A

公开(公告)日：1988-10-18

申请号：US823111

申请日：1986-01-27

申请人： Kiyotaka Kaneko ,  Katsuo Nakadai ,  Izumi Miyake ,  Kazuya Oda

发明人： Kiyotaka Kaneko ,  Katsuo Nakadai ,  Izumi Miyake ,  Kazuya Oda

IPC分类号： H02P3/10 ,  G11B19/20 ,  G11B19/22

CPC分类号： G11B19/20 ,  G11B19/22

摘要： A recording or reproducing device in which current is supplied to the spindle motor which drives the disk to produce reverse torque in response to a stop signal when the disk is rotating. The beginning of reverse rotation is detected and the supply interrupted in response thereto.

摘要翻译： 一种记录或再现装置，其中电流被提供给主轴电机，其驱动盘，以响应于盘旋转时的停止信号而产生反向转矩。 检测到反向旋转的开始，并且响应于此而中断供给。

公开(公告)号：US4835631A

公开(公告)日：1989-05-30

申请号：US938042

申请日：1986-12-04

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda ,  Katsuo Nakadai

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda ,  Katsuo Nakadai

IPC分类号： G11B5/596 ,  G11B21/08

CPC分类号： G11B5/59611 ,  G11B21/083 ,  G11B21/085

摘要： A device for tracking a rotary recording medium includes a playback head for reading a signal from any of a plurality of tracks which are formed on the rotary recording medium, which is rotating at a predetermined constant speed, such that a beginning and an end of a recording in each of the tracks coincide with each other, a head support mechanism supporting the head such that the head is movable along the recording medium, an arrangement for detecting an envelope of a signal which is read out of the recording medium by the head, and a controller for controlling the head support mechanism to move the head to a position where a desired one of the tracks is located. An arrangement for detecting a position of the head relative to the recording medium and an arrangement for detecting a rotation phase of the recording medium are provided. The controller controls the head support mechanism to transport the head, while the position detecting arrangement during transport of the head detects positions of the head at which a peak of an envelope is detected in one track at each of a plurality of angles of rotation of the recording medium. The controller produces a means position of those positions of the head detected and, then, controls the head support mechanism to transport the head to the mean position.

摘要翻译： 一种用于跟踪旋转记录介质的设备包括一个重放头，用于从旋转记录介质上形成的多个轨迹中的任何一个读取一个信号，该旋转记录介质以预定的恒定速度旋转，使得开始和结束 在每个轨道中的记录彼此重合，支撑头部的头部支撑机构使得头部沿着记录介质可移动，用于检测由头部从记录介质读出的信号的包络的装置， 以及控制器，用于控制头部支撑机构以将头部移动到所需的一个轨道所在的位置。 提供了用于检测头相对于记录介质的位置的装置和用于检测记录介质的旋转相位的装置。 控制器控制头部支撑机构以传送头部，而在头部传送期间的位置检测装置检测头部的位置，在该位置处，在多个旋转角度的每一个的一个轨道中检测到包络的峰值 记录介质。 控制器产生检测到头部位置的装置位置，然后控制头部支撑机构将头部运送到平均位置。

公开(公告)号：US4804925A

公开(公告)日：1989-02-14

申请号：US29231

申请日：1987-03-23

申请人： Yoshiki Iwase ,  Katsuo Nakadai ,  Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

发明人： Yoshiki Iwase ,  Katsuo Nakadai ,  Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

IPC分类号： G11B20/14 ,  H04N9/82 ,  H04L27/22

CPC分类号： H04N9/8222 ,  G11B20/1419 ,  H04N9/8233

摘要： A data signal is modulated by an exclusive-OR operation applied to a carrier signal and a data signal to be recorded. Demodulation is similarly performed by an exclusive-OR operation applied to the carrier signal and signal indicative of read data. This makes it possible to construct the modulating/demodulating circuit in the form of a digital circuit.

摘要翻译： 数据信号由应用于载波信号的异或运算和要记录的数据信号进行调制。 解调类似地通过应用于载波信号的异或运算和指示读取数据的信号来执行。 这使得可以以数字电路的形式构造调制/解调电路。

公开(公告)号：US4734793A

公开(公告)日：1988-03-29

申请号：US831912

申请日：1986-02-21

申请人： Kiyotaka Kaneko ,  Katsuo Nakadai ,  Izumi Miyake ,  Kazuya Oda

发明人： Kiyotaka Kaneko ,  Katsuo Nakadai ,  Izumi Miyake ,  Kazuya Oda

IPC分类号： H04N5/76 ,  G11B19/28 ,  G11B20/02 ,  H04N5/93 ,  H04N5/932 ,  H04N5/94 ,  H04N5/95

CPC分类号： G11B19/28 ,  H04N5/932

摘要： A video signal reproducing device in which a reproducing video signal is produced and applied to an external display. A servo reference signal is supplied to a servo loop to synchronize the phase of movement of a motor driving a recording medium. During crossing from track to track the video signal is muted and a compound signal synchronized with the servo reference signal applied to the external display.

摘要翻译： 一种产生再现视频信号并将其应用于外部显示器的视频信号再现装置。 将伺服参考信号提供给伺服回路以使驱动记录介质的电机的移动相位同步。 在从轨道到轨道交叉时，视频信号被静音，并且与施加到外部显示器的伺服参考信号同步的复合信号。

公开(公告)号：US4725902A

公开(公告)日：1988-02-16

申请号：US890523

申请日：1986-07-30

申请人： Kazuya Oda ,  Kiyotaka Kaneko ,  Izumi Miyake

发明人： Kazuya Oda ,  Kiyotaka Kaneko ,  Izumi Miyake

IPC分类号： G11B5/012 ,  G11B5/55 ,  G11B19/02 ,  G11B5/03 ,  G11B21/10

CPC分类号： G11B19/02 ,  G11B5/012 ,  G11B5/55

摘要： A method of erasing a magnetic recording on one designated track or on plural designated tracks on a magnetic recording medium bearing a plurality of tracks mutually adjacent one of which are spaced apart substantially equal distances includes moving a magnetic head in a direction orthogonal to the tracks, detecting a position of a track, on which a magnetic recording has been made, nearest an outermost track among the designated tracks, based on the strength of a signal read from the magnetic recording medium by the magnetic head, and erasing, by means of the magnetic head, a range decided using the detected position of tracks as a reference.

摘要翻译： 一种在一个指定轨道上或多个指定轨道上擦除磁记录的方法，该磁记录介质上承载有相互相邻的多个磁道间隔开大致相等的距离，包括在与磁道正交的方向上移动磁头， 基于通过磁头从磁记录介质读取的信号的强度，检测已经进行了磁记录的轨道的位置，最靠近指定轨迹中的最外面的轨迹，并通过 磁头，使用轨迹的检测位置作为参考确定的范围。

公开(公告)号：US4701813A

公开(公告)日：1987-10-20

申请号：US894020

申请日：1986-08-07

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Kazuya Oda

IPC分类号： G11B17/04 ,  G11B5/00 ,  G11B5/012 ,  G11B17/043 ,  G11B17/054 ,  G11B19/00 ,  G11B19/06 ,  G11B19/10 ,  G11B19/14 ,  G11B27/34 ,  G11B27/36 ,  G11B33/10

CPC分类号： G11B5/012 ,  G11B19/06 ,  G11B19/10 ,  G11B19/14 ,  G11B27/34 ,  G11B27/36 ,  G11B33/10 ,  G11B2005/001

摘要： A method of protecting a magnetic recording medium includes measuring a time period over which a main power supply continues to remain in an off state and the magnetic recording medium continues to remain loaded at a predetermined position. If the measured time period attains a first predetermined time period (e.g. 60 minutes), the recording medium is rotated for a second predetermined time period (e.g. several second), thereby preventing a magnetic recording/playback head from leaving its impression on the recording medium due to continuous pressing contact between the two at the same location on the recording medium.

摘要翻译： 保护磁记录介质的方法包括测量主电源继续保持在断开状态并且磁记录介质继续保持在预定位置的时间段。 如果测量的时间段达到第一预定时间段（例如60分钟），则记录介质旋转第二预定时间段（例如几秒钟），从而防止磁记录/重放头在记录介质上留下印象 由于两者在记录介质上的相同位置处的连续压接。

公开(公告)号：US4689700A

公开(公告)日：1987-08-25

申请号：US845338

申请日：1986-03-28

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Katsuo Nakadai ,  Kazuya Oda

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Katsuo Nakadai ,  Kazuya Oda

IPC分类号： G11B5/55 ,  G11B5/58 ,  G11B5/596 ,  G11B5/56

CPC分类号： G11B5/553 ,  G11B5/58 ,  G11B5/59611

摘要： A tracking apparatus for tracking a track recorded in a rotary recording medium which rotates at a predetermined constant speed has a playback head for sensing a signal out of a desired one of tracks each being provided in the recording medium such that a beginning and an end of recording coincide with each other includes a head transport mechanism for supporting the playback head movably along the recording medium, an envelope detector for detecting an envelope of the signal sensed by the playback head, and a controller for controlling the head transport mechanism to move the playback head to a position where a desired one of the tracks is located. The head transport mechanism includes a head position detector for detecting a position of the playback head on the recording medium. The controller is constructed to control the head transport mechanism to move the head to compute for one of the tracks two different positions where a level of the envelope detected by the envelope detector has a reference value, then compute an intermediate position between the two positions, and then control the head transport mechanism to move the head to the intermediate position. The reference value may be controlled higher when the position of the head is associated with any of the tracks having comparatively large diameters than when it is associated with any of the tracks having comparatively small diameters.

摘要翻译： 用于跟踪记录在以预定的恒定速度旋转的旋转记录介质中的轨迹的跟踪装置具有用于感测每个设置在记录介质中的期望的一个轨道中的信号的回放头，使得开始和结束 相互重合的记录包括用于沿着记录介质可移动地支撑重放头的磁头传送机构，用于检测由重放头感测到的信号的包络的包络检测器，以及用于控制磁头传送机构以移动重放的控制器 到达所需轨道所在的位置。 磁头传送机构包括用于检测记录介质上的重放头的位置的磁头位置检测器。 控制器被构造成控制磁头传送机构以移动磁头，以计算磁道之一的两个不同位置，其中由包络检测器检测到的包络的电平具有参考值，然后计算两个位置之间的中间位置， 然后控制磁头传送机构将磁头移动到中间位置。 当头部的位置与具有相对较大直径的轨道相关联的轨道的位置与当具有相对较小直径的轨道相关联的轨道的位置相关联时，可以更高地控制参考值。