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2. 发明授权

EP0505041B1 Magnetic sensor 失效
标题翻译： MagnetischerFühler
公开(公告)号：EP0505041B1
公开(公告)日：1998-01-07
申请号：EP92301547.3
申请日：1992-02-25
申请人： HITACHI, LTD.
发明人： Kawamata, Syooichi , Takahashi, Tadashi , Morinaga, Shigeki
IPC分类号： G01R33/09
CPC分类号： G01R33/09

3. 发明授权

EP0091684B1 Method and apparatus for counting with overflow prevention 失效
标题翻译：用于计算溢流预防的方法和装置
公开(公告)号：EP0091684B1
公开(公告)日：1988-08-03
申请号：EP83103495.4
申请日：1983-04-11
申请人： Hitachi, Ltd.
发明人： Hayashida, Hiroshi , Miyashita, Kunio , Takahashi, Tadashi , Morinaga, Shigeki , Ishizaki, Kosho
IPC分类号： G05B19/29 , G05D13/62 , G06F15/46
CPC分类号： G05B19/293 , B41J11/42 , G05B2219/34053 , G05B2219/34215

4. 发明公开

EP0180196A3 Programmable counter/timer device 有权
标题翻译：可编程计数器/定时器设备
公开(公告)号：EP0180196A3
公开(公告)日：1988-04-06
申请号：EP85113745
申请日：1985-10-29
申请人： HITACHI, LTD.
发明人： Morinaga, Shigeki , Watabe, Mitsuru
IPC分类号： G04G01/00 , G04G15/00
CPC分类号： G04G99/006 , G04G15/006
摘要： A counter/timer device includes a plurality of registers (105) each capable of performing any of the function of a counter/timer register, the function of a capture register and the function of a compare register, in accordance with a command from a central processing unit, and a plurality of task registers (103) corresponding to tasks which are to be carried out by using the above registers. Each of the task registers stores a task instruction for specifying a counter/timer register and a capture/compare register which are used in a task, and for specifying the operation mode of each of the specified registers. The task registers are scanned to successively read out the task instructions, and each of the read-out task instructions controls the operation of each of registers used in a corresponding task. Thus, tasks corresponding to the task instructions are all carried out at once.

5. 发明公开

EP0501661A3 Linear actuator 失效
标题翻译：直线执行器
公开(公告)号：EP0501661A3
公开(公告)日：1994-04-27
申请号：EP92301336.1
申请日：1992-02-19
申请人： HITACHI, LTD.
发明人： Nihei, Hideki , Kawamata, Syooichi , Horie, Hideaki , Morinaga, Shigeki , Mutoh, Nobuyoshi
IPC分类号： H02K41/02
CPC分类号： H02K41/031 , G11B7/08582 , G11B21/083 , H02P6/006 , H02P6/34
摘要： A linear actuator for e.g. a disk drive has a fixed member (19) and a movable member (101). One of those members (19,101) carries at least one track (3) of permanent magnets extending in the direction in which the movable member (3) is to move, with adjacent permanent magnets having alternate magnetic polarity. The other member (19,101) has first and second drive parts each having at least one pair of opposed sets of teeth (1,2). The or each track (3) passes between those teeth (1,2). Each pair of teeth (1,2) is associated with a corresponding drive coil (4,5) giving the teeth (1,2) a magnetic polarity so that there is a magnetic alignment between a polarity of the teeth (1,2) and the permanent magnets (3). The drive parts are arranged so that, for any given relative position of the first and second members (19,101), the magnetic alignment of the teeth (1,2) of one drive part is out of phase with the magnetic alignment of the teeth (1,2) of the other part. In order to ensure that the magnetic alignments are out of phase, there may be a physical displacement between the teeth (1,2) of the two drive parts. This displacement may be (m ± 1/2).T p where m is an integer and T p is the teeth pitch. This gives a phase displacement of 180°. Alternatively, the drive parts may be aligned, and two tracks (3) of permanent magnets be provided with the magnets thereof having opposite polarity for a given track position, or the drive current to the drive coils (4,5) may be controlled to be out of phase. Such arrangements permits smooth driving of the movable member (101).
摘要翻译：线性致动器用于例如磁盘驱动器具有固定部件（19）和可动部件（101）。其中一个部件（19,101）带有至少一个沿可动部件（3）移动方向延伸的永磁体轨道（3），相邻的永磁体具有交替的磁极性。另一个构件（19,101）具有第一和第二驱动部件，每个驱动部件具有至少一对相对的齿组（1,2）。该或每个轨道（3）在这些齿（1,2）之间通过。每对齿（1,2）与相应的驱动线圈（4,5）相关联，给出齿（1,2）的磁极性，从而在齿（1,2）的极性之间存在磁性对准，和永磁体（3）。驱动部分布置成，对于第一和第二部件（19,101）的任何给定的相对位置，一个驱动部分的齿（1,2）的磁性对准与齿的磁性对准 1,2）的其他部分。为了确保磁性对准不同相，两个驱动部件的齿（1,2）之间可能存在物理位移。这个位移可以是（m±1/2）.Tp其中m是整数，Tp是齿距。这产生了180°的相位偏移。或者，驱动部分可以对齐，并且两个永久磁铁的轨道（3）可以被设置成其磁铁对于给定的轨道位置具有相反的极性，或者驱动线圈（4,5）的驱动电流可以被控制为不同步。这样的布置允许可动构件（101）的平稳驱动。

6. 发明公开

EP0509635A3 Disk drive unit 失效
标题翻译：具有这样的电动机的电动机和磁盘驱动单元
公开(公告)号：EP0509635A3
公开(公告)日：1993-09-22
申请号：EP92302048.1
申请日：1992-03-11
申请人： HITACHI, LTD. , JAPAN SERVO CO. LTD.
发明人： Tajima, Fumio , Kanazawa, Hiroshi , Katayama, Hiroshi , Ohnishi, Kazuo , Takashashi, Tadashi , Mutoh, Nobuyoshi , Morinaga, Shigeki , Tsuboi, Nobuyoshi , Nihei, Hideki
IPC分类号： H02K1/14 , H02K7/14 , H02K29/00 , H02K21/16 , G11B19/20 , G11B25/04 , G11B17/028 , G11B19/28 , G11B21/02 , H01L41/09 , G11B33/12
CPC分类号： G11B25/043 , G11B19/20 , H02K1/14 , H02K1/146 , H02K7/14 , H02K16/00 , H02K21/16 , H02K41/03 , H02K2201/15
摘要： A motor has a stator (4) and a rotor (3), the stator (4) having cores (9A) and drive coils (1) which generate magnetic fields for rotating the rotor (3). The stator (4) also has a yoke (9B,9C) surrounding the rotor (3) and the rotor (3) is positioned such that it is closer to one part (9B) of the outer periphery of the yoke than another part (9B) of the yoke. Such a motor is particularly suitable for use in a disk drive unit as a spindle motor (2) for rotating the disk (1). Then an actuator (12) for moving a head (11) may be located adjacent the part (9B) of the outer periphery of the yoke (9b,9C) which is closest to the rotor. This permits the head (11) to approach closely the axis of rotation of the disk (1) without the spindle motor (2) interfering with the movement of the head (11). The continuous yoke (9B,9C) prevents magnetic flux leakage from the spindle motor interfering with the actuator (12). The actuator (12) may itself have a yoke (9D) integral with the yoke (9B,9C) of the spindle motor (2), and/or other components in common.

7. 发明公开

EP0505041A3 Magnetic sensor 失效
标题翻译：磁性传感器
公开(公告)号：EP0505041A3
公开(公告)日：1993-09-08
申请号：EP92301547.3
申请日：1992-02-25
申请人： HITACHI, LTD.
发明人： Kawamata, Syooichi , Takahashi, Tadashi , Morinaga, Shigeki
IPC分类号： G01R33/06
CPC分类号： G01R33/09
摘要： A magnetic sensor has a elongate sensor region formed by an elongate magneto-resistive element (2) and an overlapping elongate conductive element (3). The ends of the magneto-resistive element (2) and the conductive element (3) are connected to terminals (T1,T2,T3,T4,T5) which are arranged in an array (10) which is spaced in a predetermined direction from the elongate sensor region. The array (10) may be at one side or one end of the elongate sensor region, and the terminals (T1,T2,T3,T4,T5) may have a linear arrangement within the array. The two terminals (T1,T2) connected to the magneto-resistive element (2) are preferably adjacent, and preferably the terminals (T1,T3) connected to the ends of the magneto-resistive element (2) and the conductive element (3) closer to the array (10) are also adjacent. A common terminal (T5) may be provided. Two such sensors may form a sensor array which is particularly suitable for use in a position sensor in e.g. a torque sensor of a power steering system.
摘要翻译：磁传感器具有由细长磁阻元件（2）和重叠的细长导电元件（3）形成的细长传感器区域。磁阻元件（2）和导电元件（3）的端部连接到排列成阵列（10）的端子（T1，T2，T3，T4，T5），该阵列（10）以预定方向细长的传感器区域。阵列（10）可以在细长传感器区域的一侧或一端，并且端子（T1，T2，T3，T4，T5）可以在阵列内具有线性排列。连接到磁阻元件（2）的两个端子（T1，T2）优选地相邻，并且优选地连接到磁阻元件（2）和导电元件（3）的端部的端子（T1，T3））也靠近阵列（10）。可以提供公共端子（T5）。两个这样的传感器可以形成特别适用于例如位置传感器的传感器阵列。动力转向系统的扭矩传感器。

8. 发明公开

EP0539081A1 Current sensor system or a method for current detection 失效
标题翻译： Stromensensorsystem或者Methode zur Stromerfassung。
公开(公告)号：EP0539081A1
公开(公告)日：1993-04-28
申请号：EP92309316.5
申请日：1992-10-13
申请人： HITACHI, LTD.
发明人： Takahashi, Tadashi , Kawamata, Syooichi , Morinaga, Shigeki
IPC分类号： G01R15/02
CPC分类号： G01R15/205
摘要： The object of the present invention is to provide a small size precise insulating type current sensor system.
A sensing portion is composed of a magnetoresistance element, a bias conductor, and a current conductor, all of which are arranged on an insulating substrate. resistance change of the magnetoresistance element is taken into an amplifier, and an output of the amplifier flows an bias current to the bias conductor. When a current flows in the current conductor, the current causes a magnetic field and the resistance of the magnetoresistance element must be changed, but because a feedback of the resistance change by the amplifier changes the bias current and controls the bias current for keeping the magnetic field of the magnetoresistance element at a constant. Accordingly, the insulating type current sensing with a wide range and preferable preciseness without affected with hysteresis of the magnetoresistance element and Barkhausen noise became possible.
摘要翻译：本发明的目的是提供一种小型精密绝缘型电流传感器系统。感测部分由磁阻元件，偏置导体和电流导体构成，所有这些都布置在绝缘基板上。磁阻元件的电阻变化被放入放大器中，并且放大器的输出将偏置电流流向偏置导体。当电流在电流导体中流动时，电流产生磁场，并且磁阻元件的电阻必须改变，但是由于放大器的电阻变化的反馈改变偏置电流并且控制用于保持磁性的偏置电流磁阻元件的场是恒定的。因此，不受磁阻元件和巴克豪森噪声的滞后影响的宽范围和优选精度的绝缘型电流感测成为可能。

9. 发明公开

EP0505041A2 Magnetic sensor 失效
标题翻译： MagnetischerFühler。
公开(公告)号：EP0505041A2
公开(公告)日：1992-09-23
申请号：EP92301547.3
申请日：1992-02-25
申请人： HITACHI, LTD.
发明人： Kawamata, Syooichi , Takahashi, Tadashi , Morinaga, Shigeki
IPC分类号： G01R33/06
CPC分类号： G01R33/09
摘要： A magnetic sensor has a elongate sensor region formed by an elongate magneto-resistive element (2) and an overlapping elongate conductive element (3). The ends of the magneto-resistive element (2) and the conductive element (3) are connected to terminals (T1,T2,T3,T4,T5) which are arranged in an array (10) which is spaced in a predetermined direction from the elongate sensor region. The array (10) may be at one side or one end of the elongate sensor region, and the terminals (T1,T2,T3,T4,T5) may have a linear arrangement within the array. The two terminals (T1,T2) connected to the magneto-resistive element (2) are preferably adjacent, and preferably the terminals (T1,T3) connected to the ends of the magneto-resistive element (2) and the conductive element (3) closer to the array (10) are also adjacent. A common terminal (T5) may be provided. Two such sensors may form a sensor array which is particularly suitable for use in a position sensor in e.g. a torque sensor of a power steering system.
摘要翻译：磁传感器具有由细长磁阻元件（2）和重叠的细长导电元件（3）形成的细长传感器区域。磁阻元件（2）和导电元件（3）的端部连接到排列成阵列（10）的端子（T1，T2，T3，T4，T5），该阵列（10）以预定方向细长的传感器区域。阵列（10）可以在细长传感器区域的一侧或一端，并且端子（T1，T2，T3，T4，T5）可以在阵列内具有线性排列。连接到磁阻元件（2）的两个端子（T1，T2）优选地相邻，并且优选地连接到磁阻元件（2）和导电元件（3）的端部的端子（T1，T3））也靠近阵列（10）。可以提供公共端子（T5）。两个这样的传感器可以形成特别适用于例如位置传感器的传感器阵列。动力转向系统的扭矩传感器。

10. 发明公开

EP0501661A2 Linear actuator 失效
标题翻译：线人Antrieb。
公开(公告)号：EP0501661A2
公开(公告)日：1992-09-02
申请号：EP92301336.1
申请日：1992-02-19
申请人： HITACHI, LTD.
发明人： Nihei, Hideki , Kawamata, Syooichi , Horie, Hideaki , Morinaga, Shigeki , Mutoh, Nobuyoshi
IPC分类号： H02K41/02
CPC分类号： H02K41/031 , G11B7/08582 , G11B21/083 , H02P6/006 , H02P6/34
摘要： A linear actuator for e.g. a disk drive has a fixed member (19) and a movable member (101). One of those members (19,101) carries at least one track (3) of permanent magnets extending in the direction in which the movable member (3) is to move, with adjacent permanent magnets having alternate magnetic polarity. The other member (19,101) has first and second drive parts each having at least one pair of opposed sets of teeth (1,2). The or each track (3) passes between those teeth (1,2). Each pair of teeth (1,2) is associated with a corresponding drive coil (4,5) giving the teeth (1,2) a magnetic polarity so that there is a magnetic alignment between a polarity of the teeth (1,2) and the permanent magnets (3). The drive parts are arranged so that, for any given relative position of the first and second members (19,101), the magnetic alignment of the teeth (1,2) of one drive part is out of phase with the magnetic alignment of the teeth (1,2) of the other part. In order to ensure that the magnetic alignments are out of phase, there may be a physical displacement between the teeth (1,2) of the two drive parts. This displacement may be (m ± 1/2).T p where m is an integer and T p is the teeth pitch. This gives a phase displacement of 180°. Alternatively, the drive parts may be aligned, and two tracks (3) of permanent magnets be provided with the magnets thereof having opposite polarity for a given track position, or the drive current to the drive coils (4,5) may be controlled to be out of phase. Such arrangements permits smooth driving of the movable member (101).
摘要翻译：线性致动器。磁盘驱动器具有固定构件（19）和可动构件（101）。这些构件（19,101）中的一个承载沿着可移动构件（3）将要移动的方向延伸的永磁体的至少一个轨道（3），相邻的永磁体具有交替的磁极性。另一个构件（19,101）具有第一和第二驱动部件，每一个具有至少一对相对的一组齿（1,2）。该轨道或每条轨道（3）在这些齿（1,2）之间通过。每对齿（1,2）与相应的驱动线圈（4,5）相关联，使得齿（1,2）具有磁极性，使得在齿（1,2）的极性之间存在磁性对准，和永久磁铁（3）。驱动部件布置成使得对于第一和第二构件（19,101）的任何给定的相对位置，一个驱动部件的齿（1,2）的磁性对准与齿的磁性对准异相（ 1,2）的另一部分。为了确保磁性对准异相，在两个驱动部分的齿（1,2）之间可能存在物理位移。该位移可以是（m +/- 1/2）.Tp其中m是整数，Tp是齿距。这产生180度的相位偏移。或者，驱动部件可以对准，并且两个永磁体的磁道（3）设置有对于给定磁道位置具有相反极性的磁体，或者可以将驱动线圈（4,5）的驱动电流控制到不相位这种布置允许可动构件（101）的平滑驱动。

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