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1. 发明授权

US08130115B2 Signal processing circuit for rotation detecting device 有权
标题翻译：旋转检测装置的信号处理电路
公开(公告)号：US08130115B2
公开(公告)日：2012-03-06
申请号：US12507916
申请日：2009-07-23
申请人： Norihiro Kurumado , Hiroshi Okada , Nobukazu Oba , Hirofumi Uenoyama
发明人： Norihiro Kurumado , Hiroshi Okada , Nobukazu Oba , Hirofumi Uenoyama
IPC分类号： G08B21/00
CPC分类号： G01P13/045 , G01D5/24428 , G01D5/2451
摘要： In the normal rotation direction, a change in the main sensing signal caused by a front edge is defined as a signal change caused by an effective edge, and a change in the main sensing signal caused by a back edge is defined as a signal change caused by an ineffective edge. In the reverse direction, a change in the main sensing signal caused by the back edge is defined as a signal change caused by an effective edge, and a change caused by a front edge is defined as a signal change caused by an ineffective edge. Regardless of the rotation direction, a detection signal generating circuit generates a detection signal including falling-edge changes and rising edge changes caused by the effective edge and ineffective edge respectively. When the direction is changed, the signal change on the detection signal is prohibited. As a result, gear tooth detection discrepancies are prevented.
摘要翻译：在正常旋转方向上，由前沿引起的主感测信号的变化被定义为由有效边缘引起的信号变化，并且由后沿引起的主感测信号的变化被定义为引起的信号变化由无效的边缘。在相反方向上，由后沿引起的主感测信号的变化被定义为由有效边缘引起的信号变化，并且由前沿引起的变化被定义为由无效边缘引起的信号变化。不管旋转方向如何，检测信号发生电路分别产生包括下降沿变化和由有效边缘和无效边缘引起的上升沿变化的检测信号。当方向改变时，检测信号上的信号变化被禁止。结果，防止齿轮齿检测差异。

2. 发明申请

US20100019917A1 SIGNAL PROCESSING CIRCUIT FOR ROTATION DETECTING DEVICE 有权
标题翻译：用于旋转检测装置的信号处理电路
公开(公告)号：US20100019917A1
公开(公告)日：2010-01-28
申请号：US12507916
申请日：2009-07-23
申请人： Norihiro Kurumado , Hiroshi Okada , Nobukazu Oba , Hirofumi Uenoyama
发明人： Norihiro Kurumado , Hiroshi Okada , Nobukazu Oba , Hirofumi Uenoyama
IPC分类号： G08B21/00
CPC分类号： G01P13/045 , G01D5/24428 , G01D5/2451
摘要： In the normal rotation direction, a change in the main sensing signal caused by a front edge is defined as a signal change caused by an effective edge, and a change in the main sensing signal caused by a back edge is defined as a signal change caused by an ineffective edge. In the reverse direction, a change in the main sensing signal caused by the back edge is defined as a signal change caused by an effective edge, and a change caused by a front edge is defined as a signal change caused by an ineffective edge. Regardless of the rotation direction, a detection signal generating circuit generates a detection signal including falling-edge changes and rising edge changes caused by the effective edge and ineffective edge respectively. When the direction is changed, the signal change on the detection signal is prohibited. As a result, gear tooth detection discrepancies are prevented.
摘要翻译：在正常旋转方向上，由前沿引起的主感测信号的变化被定义为由有效边缘引起的信号变化，并且由后沿引起的主感测信号的变化被定义为引起的信号变化由无效的边缘。在相反方向上，由后沿引起的主感测信号的变化被定义为由有效边缘引起的信号变化，并且由前沿引起的变化被定义为由无效边缘引起的信号变化。不管旋转方向如何，检测信号发生电路分别产生包括下降沿变化和由有效边缘和无效边缘引起的上升沿变化的检测信号。当方向改变时，检测信号上的信号变化被禁止。结果，防止齿轮齿检测差异。

3. 发明授权

US08018224B2 Rotation detection sensor 有权
标题翻译：旋转检测传感器
公开(公告)号：US08018224B2
公开(公告)日：2011-09-13
申请号：US12230211
申请日：2008-08-26
申请人： Norihiro Kurumado
发明人： Norihiro Kurumado
IPC分类号： G01B7/30
CPC分类号： G01D5/145 , G01D5/2451 , G01P13/04
摘要： A rotation detection sensor for detecting both rotational position and direction of a rotating body with a gear includes a magnet, multiple magnetic sensors, a rotational position detection circuit, and a rotational direction detection circuit. The magnet produces a magnetic field directed to a gear tooth of the rotating body. When the rotating body rotates, the magnetic sensors output sensor signals shifted in phase from each other. The rotational position detection circuit performs a differential operation on the sensor signals received from at least two magnetic sensors and outputs a rotational position signal. The rotational direction detection circuit outputs a rotational direction signal based on the position signal and the sensor signal received from at least one of the at least two magnetic sensors.
摘要翻译：用于利用齿轮检测旋转体的旋转位置和方向的旋转检测传感器包括磁体，多个磁性传感器，旋转位置检测电路和旋转方向检测电路。磁体产生一个指向旋转体的齿轮齿的磁场。当旋转体旋转时，磁传感器输出相位相移的传感器信号。旋转位置检测电路对从至少两个磁传感器接收的传感器信号执行差动运算，并输出旋转位置信号。旋转方向检测电路基于从至少两个磁传感器中的至少一个接收的位置信号和传感器信号输出旋转方向信号。

4. 发明授权

US09638767B2 Current sensor and attachment structure of the same 有权
公开(公告)号：US09638767B2
公开(公告)日：2017-05-02
申请号：US13613835
申请日：2012-09-13
申请人： Kousuke Nomura , Norihiro Kurumado
发明人： Kousuke Nomura , Norihiro Kurumado
IPC分类号： G01R33/09 , G06F19/00
CPC分类号： G01R33/09
摘要： In a current sensor for detecting an electric current flowing in a current path, a magnetic field generating element generates a second magnetic field perpendicular to a first magnetic field generated by the electric current of the current path, and a magnetic sensor generates at least one of a first signal containing a sine value according to an angle defined between the second magnetic field and a synthetic magnetic field composed of the first magnetic field and the second magnetic field and a second signal containing a cosine value according to the angle. A signal processing unit includes a calculation circuit that calculates a tangential value according to the angle using the at least one of the first signal and the second signal, and outputs a sensor signal containing the tangential value.

5. 发明申请

US20070290679A1 Rotation detection device 失效
标题翻译：旋转检测装置
公开(公告)号：US20070290679A1
公开(公告)日：2007-12-20
申请号：US11711151
申请日：2007-02-27
申请人： Yoichi Okui , Norihiro Kurumado
发明人： Yoichi Okui , Norihiro Kurumado
IPC分类号： G01B7/30
CPC分类号： G01P1/026
摘要： A rotation detection device includes a cover member having an opening end, and a sensor body member which has a mounting portion protruding from a mounting-portion protrusion surface and a joint portion positioned around the mounting-portion protrusion surface. The opening end of the cover member is joined to the joint portion of the sensor body member in such a manner that a magnet is housed in the cover member and the mounting-portion protrusion surface is covered by the cover member. A magnetism detection unit is fixedly mounted to the mounting portion and arranged in the magnet. One of the joining surface of the opening end of the cover member and the joining surface of the sensor body member has at least one of a flange-shaped portion and a bent portion. The other of the joining surfaces has a shape corresponding to that of the one thereof.
摘要翻译：旋转检测装置包括具有开口端的盖构件和具有从安装部分突出表面突出的安装部分和位于安装部分突出表面周围的接合部分的传感器本体构件。盖构件的开口端以这样的方式接合到传感器主体构件的接合部分，使得磁体容纳在盖构件中，并且安装部分突出表面被盖构件覆盖。磁性检测单元固定地安装到安装部分并且布置在磁体中。盖构件的开口端的接合面和传感器主体构件的接合面之一具有凸缘形状部分和弯曲部分中的至少一个。另一个接合面具有与其一个相对应的形状。

6. 发明申请

US20060038560A1 Magnetic sensor device having components mounted on magnet 有权
标题翻译：具有安装在磁体上的部件的磁性传感器装置
公开(公告)号：US20060038560A1
公开(公告)日：2006-02-23
申请号：US11199229
申请日：2005-08-09
申请人： Norihiro Kurumado
发明人： Norihiro Kurumado
IPC分类号： G01R33/02
CPC分类号： G01D5/147 , G01P3/487
摘要： A magnetic sensor device is used for detecting, e.g., a rotational speed of a rotor made of a magnetic material by sensing changes in a magnetic field. The magnetic sensor device is composed of a magnet, electronic components including a sensor chip and wiring for electrically connecting the electronic components. The wiring is formed on a surface of the magnet, and the electronic components are directly mounted on the wiring and electrically connected to the wiring. Alternatively, the electronic components are mounted on the magnet and electrically connected to the wiring via bonding wires. In this manner, a reed frame or a printed circuit board on which the electronic components are mounted can be eliminated to thereby reduce the number of parts used in the magnetic sensor device.
摘要翻译：磁传感器装置用于通过感测磁场的变化来检测例如由磁性材料制成的转子的转速。磁传感器装置由磁铁，包括传感器芯片的电子部件和用于电连接电子部件的布线构成。布线形成在磁铁的表面上，电子部件直接安装在布线上并与布线电连接。或者，电子部件安装在磁体上，并通过接合线与布线电连接。以这种方式，可以消除其上安装电子部件的筘架或印刷电路板，从而减少在磁传感器装置中使用的部件数量。

7. 发明申请

US20140117981A1 MOVING OBJECT DETECTION APPARATUS 有权
标题翻译：移动物体检测装置
公开(公告)号：US20140117981A1
公开(公告)日：2014-05-01
申请号：US14124803
申请日：2012-07-02
申请人： Norihiro Kurumado
发明人： Norihiro Kurumado
IPC分类号： G01B7/00
CPC分类号： G01B7/003 , G01D5/145 , H03K17/9517 , H03K2217/94068
摘要： A moving object detection apparatus includes a current mirror circuit including first and second transistors connected in parallel between a power source and ground and having gates connected to a ground-side terminal of the first transistor, first and second magnetoresistive elements having pin layers and respectively arranged between the first and second transistors and the ground, a constant voltage circuit, a voltage output circuit having third and fourth transistors respectively arranged between the first and second transistors and the first and second magnetoresistive elements and respectively applying constant voltages to the first and second magnetoresistive elements based on output of the constant voltage circuit when the output of the constant voltage circuit is applied to gates of the third and fourth transistors, and a fifth transistor arranged between the second and fourth transistors to operate according to a potential of a power-source-side terminal of the fourth transistor.
摘要翻译：一种运动物体检测装置，包括：电流镜电路，包括并联连接在电源和地之间并具有连接到第一晶体管的接地侧端子的栅极的第一和第二晶体管，第一和第二磁阻元件具有引脚层并分别布置在第一和第二晶体管与地之间，具有恒压电路，具有分别布置在第一和第二晶体管与第一和第二磁阻元件之间的第三和第四晶体管的电压输出电路，并分别向第一和第二磁阻施加恒定电压当恒压电路的输出施加到第三和第四晶体管的栅极时，基于恒压电路的输出的元件，以及布置在第二和第四晶体管之间的第五晶体管，以根据电源的电位四号码头的码头呃

8. 发明授权

US08392146B2 Signal processing circuit for rotation detector 有权
标题翻译：旋转探测器信号处理电路
公开(公告)号：US08392146B2
公开(公告)日：2013-03-05
申请号：US12947350
申请日：2010-11-16
申请人： Norihiro Kurumado
发明人： Norihiro Kurumado
IPC分类号： G01P3/00
CPC分类号： G01P3/488 , G01P3/489 , G01P13/045
摘要： A signal processing circuit for a rotation detector includes a normal-rotation pulse request holding portion, a reverse-rotation pulse request holding portion, a resetting portion, and a waiting time switching portion. When an output of one of a normal-rotation pulse and a reverse-rotation pulse is finished and a waiting time elapses, the resetting portion resets an output request signal of the one of the normal-rotation pulse and the reverse-rotation pulse held by one of the pulse request holding portions. The waiting time switching portion sets the waiting time to a first waiting time when one of the pulse request holding portions holds the output request signal, and the waiting time switching portion sets the waiting time to a second waiting time longer than the first waiting time when both the pulse request holding portions hold the output request signals.
摘要翻译：用于旋转检测器的信号处理电路包括正常旋转脉冲请求保持部分，反向旋转脉冲请求保持部分，复位部分和等待时间切换部分。当正常旋转脉冲和逆旋转脉冲之一的输出结束并且经过了等待时间时，复位部分复位正常旋转脉冲和逆旋转脉冲之一的输出请求信号，一个脉冲请求保持部分。所述等待时间切换部将所述等待时间设定为所述脉冲请求保持部中的一个保持所述输出请求信号的第一等待时间，所述等待时间切换部将所述等待时间设定为比所述第一等待时间长的第二等待时间，脉冲请求保持部都保持输出请求信号。

9. 发明授权

US09417269B2 Current sensor 有权
标题翻译：电流传感器
公开(公告)号：US09417269B2
公开(公告)日：2016-08-16
申请号：US14123820
申请日：2012-06-26
申请人： Ryosuke Sakai , Takamasa Kinpara , Norihiro Kurumado , Kousuke Nomura
发明人： Ryosuke Sakai , Takamasa Kinpara , Norihiro Kurumado , Kousuke Nomura
IPC分类号： G01R33/02 , G01R19/00 , G01R33/09 , G01R15/20
CPC分类号： G01R19/0092 , G01R15/205 , G01R33/093
摘要： A current sensor for measuring a current flowing through a conductor includes a sensor substrate, a magnetoelectric converter formed on a surface of the sensor substrate and configured to output a signal changing with an applied magnetic field, and a magnetic shield that surrounds the sensor substrate and the conductor to magnetically shield the inside from the outside. The output signal of the magnetoelectric converter changes with a magnetic filed applied along the formation surface of the sensor substrate. The magnetic shield has at least one gap for reducing magnetic saturation in the magnetic shield. The gap and the sensor substrate are located at the same height in a z-direction orthogonal to the formation surface of the sensor substrate.
摘要翻译：用于测量流过导体的电流的电流传感器包括传感器基板，形成在传感器基板的表面上并被配置为输出利用施加的磁场变化的信号的磁电转换器和围绕传感器基板的磁屏蔽，导体将外部的内部磁屏蔽。磁电转换器的输出信号随着沿着传感器基板的形成表面施加的磁场而变化。磁屏蔽具有至少一个用于减小磁屏蔽中的磁饱和的间隙。间隙和传感器基板位于与传感器基板的形成表面正交的z方向上相同的高度。

10. 发明申请

US20140340081A1 MAGNETIC SENSOR 审中-公开
标题翻译：磁传感器
公开(公告)号：US20140340081A1
公开(公告)日：2014-11-20
申请号：US14344074
申请日：2012-08-28
申请人： Norihiro Kurumado
发明人： Norihiro Kurumado
IPC分类号： G01R33/09
CPC分类号： G01R33/093 , H01L43/08
摘要： A magnetic sensor includes a detection portion that includes first and second magnetic resistance elements. Each of the first and second magnetic resistance elements includes a pinned layer whose magnetic direction is fixed in a predetermined direction and a free layer whose magnetic direction changes in accordance with an external magnetic field. A resistance value of each of the first and second magnetic resistance elements changes in accordance with an angle between the magnetization direction of the pinned layer and the magnetization direction of the free layer. The first and second magnetic resistance elements are connected in series in a state where the magnetization directions of the pinned layers are perpendicular to each other. The detection portion outputs a middle point voltage of the first and second magnetic resistance elements as a detection signal.
摘要翻译：磁传感器包括包括第一和第二磁阻元件的检测部分。第一和第二磁阻元件中的每一个包括其磁方向沿预定方向固定的钉扎层和磁方向根据外部磁场而变化的自由层。第一和第二磁阻元件中的每一个的电阻值根据被钉扎层的磁化方向与自由层的磁化方向之间的角度而变化。第一和第二磁阻元件在被钉扎层的磁化方向彼此垂直的状态下串联连接。检测部分输出第一和第二磁阻元件的中点电压作为检测信号。

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