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公开(公告)号：US08354840B2
公开(公告)日：2013-01-15
申请号：US12774786
申请日：2010-05-06
IPC分类号： G01B7/30
CPC分类号： G01D5/145 , G01D5/24476 , G01D5/2451
摘要： A magnetic detection device includes a signal processing circuit that detects a moving position and a moving direction of a magnetic mobile object using an output of a comparing circuit configured to output a signal by comparing an output signal of a magneto-electric transducer element with a threshold. A duration during which an output of the signal processing circuit is in a high level or in a low level is fixed to a period t1 or a period t2 depending on the moving direction of the magnetic mobile object. When switching of the moving direction of the magnetic mobile object takes place within the period t1 or the period t2, the signal processing circuit outputs a position signal same as a position signal indicating a position immediately before the switching of the moving direction of the magnetic mobile object due to hysteresis of the threshold of the comparing circuit.
摘要翻译： 磁检测装置包括：信号处理电路，其使用比较电路的输出来检测磁性移动体的移动位置和移动方向，该比较电路被配置为通过将磁电换能器元件的输出信号与阈值进行比较来输出信号 。 信号处理电路的输出处于高电平或低电平的持续时间根据磁性移动体的移动方向固定为周期t1或周期t2。 当磁性移动物体的移动方向在时间段t1或周期t2内进行切换时，信号处理电路输出与表示磁性移动体的移动方向切换前的位置相同的位置信号 对象由于比较电路的阈值滞后。
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公开(公告)号：US08497674B2
公开(公告)日：2013-07-30
申请号：US12907599
申请日：2010-10-19
申请人： Yoshinori Tatenuma , Hideki Shimauchi , Masahiro Yokotani , Yuji Kawano , Hiroshi Kobayashi , Kazuyasu Nishikawa , Manabu Tsukamoto
发明人： Yoshinori Tatenuma , Hideki Shimauchi , Masahiro Yokotani , Yuji Kawano , Hiroshi Kobayashi , Kazuyasu Nishikawa , Manabu Tsukamoto
CPC分类号： G01D5/2448 , G01P3/42 , G01P3/481 , G01P3/488
摘要： A magnetic detection apparatus includes a first comparison circuit that waveform-shapes the amplitude of a detection signal from magneto-electric transducers by DC coupling, a third comparison circuit that waveform-shapes the detection signal by AC coupling, an oscillation circuit having a natural frequency, a control circuit that counts the output of the first comparison circuit by using the oscillation means, and a selection circuit that selects the output of the first comparison means and the output of the second comparison means. The control circuit counts rising from the next rising or falling from the next falling of an output rectangular wave of the first comparison circuit, and provides output to the selection circuit at the time point at which the count value reaches a desired value. The selection circuit selects and outputs the output rectangular wave of the first comparison circuit or the third comparison circuit.
摘要翻译： 磁检测装置包括：第一比较电路，其通过DC耦合对来自磁电换能器的检测信号的振幅进行波形整形;第三比较电路，其通过AC耦合对检测信号进行波形整形;具有固有频率的振荡电路 控制电路，其通过使用振荡装置对第一比较电路的输出进行计数，以及选择电路，其选择第一比较装置的输出和第二比较装置的输出。 控制电路从第一比较电路的输出矩形波的下一个下降沿开始下一个上升或下降，并且在计数值达到期望值的时间点向选择电路提供输出。 选择电路选择并输出第一比较电路或第三比较电路的输出矩形波。
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3.发明授权Binarization circuit for binarizing detection signal representing rotation or movement of object 有权用于二值化检测信号的二值化电路，表示物体的旋转或移动公开(公告)号：US09091566B2
公开(公告)日：2015-07-28
申请号：US13520285
申请日：2010-11-29
申请人： Manabu Tsukamoto , Kazuyasu Nishikawa , Takashi Tokunaga , Hideki Shimauchi , Yoshinori Tatenuma , Yuji Kawano , Hiroshi Kobayashi
发明人： Manabu Tsukamoto , Kazuyasu Nishikawa , Takashi Tokunaga , Hideki Shimauchi , Yoshinori Tatenuma , Yuji Kawano , Hiroshi Kobayashi
CPC分类号： G01D5/2448 , G01D1/00 , G01R1/00 , H02P1/00 , H02P2201/00 , H02P2203/00
摘要： A differential amplifier generates an offset correction signal based on a rotation detection signal from a rotation detector apparatus and an offset signal. A comparator compares the offset correction signal with a threshold voltage, and outputs a binarized signal representing the comparison result. An average value signal generator circuit generates an average value signal representing the average value of the offset correction signal. The offset signal generator circuit generates the offset signal so that the signal voltage of the average value signal has a voltage value between a threshold voltage and a threshold voltage.
摘要翻译： 差分放大器基于来自旋转检测器装置的旋转检测信号和偏移信号产生偏移校正信号。 比较器将偏移校正信号与阈值电压进行比较，并输出表示比较结果的二值化信号。 平均值信号发生器电路产生表示偏移校正信号的平均值的平均值信号。 偏移信号发生器电路产生偏移信号，使得平均值信号的信号电压具有阈值电压和阈值电压之间的电压值。
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4.发明申请BINARIZATION CIRCUIT FOR BINARIZING DETECTION SIGNAL REPRESENTING ROTATION OR MOVEMENT OF OBJECT 有权用于识别检测信号的双向电路表示对象的旋转或移动公开(公告)号：US20130002242A1
公开(公告)日：2013-01-03
申请号：US13520285
申请日：2010-11-29
申请人： Manabu Tsukamoto , Kazuyasu Nishikawa , Takashi Tokunaga , Hideki Shimauchi , Yoshinori Tatenuma , Yuji Kawano , Hiroshi Kobayashi
发明人： Manabu Tsukamoto , Kazuyasu Nishikawa , Takashi Tokunaga , Hideki Shimauchi , Yoshinori Tatenuma , Yuji Kawano , Hiroshi Kobayashi
CPC分类号： G01D5/2448 , G01D1/00 , G01R1/00 , H02P1/00 , H02P2201/00 , H02P2203/00
摘要： A differential amplifier generates an offset correction signal based on a rotation detection signal from a rotation detector apparatus and an offset signal. A comparator compares the offset correction signal with a threshold voltage, and outputs a binarized signal representing the comparison result. An average value signal generator circuit generates an average value signal representing the average value of the offset correction signal. The offset signal generator circuit generates the offset signal so that the signal voltage of the average value signal has a voltage value between a threshold voltage and a threshold voltage.
摘要翻译： 差分放大器基于来自旋转检测器装置的旋转检测信号和偏移信号产生偏移校正信号。 比较器将偏移校正信号与阈值电压进行比较，并输出表示比较结果的二值化信号。 平均值信号发生器电路产生表示偏移校正信号的平均值的平均值信号。 偏移信号发生器电路产生偏移信号，使得平均值信号的信号电压具有阈值电压和阈值电压之间的电压值。
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公开(公告)号：US08260568B2
公开(公告)日：2012-09-04
申请号：US12423583
申请日：2009-04-14
IPC分类号： G01C9/00
CPC分类号： G01P13/045 , G01D5/2451 , G01P3/488
摘要： Provided is an apparatus for detecting a moving direction that can accurately detect the position, regardless of the moving direction. The moving direction detector includes groups of sensor elements that face a moving body to output detection signals in accordance with travel of the moving body. The detector includes signal processing units that convert output signals of the groups of sensor elements into rectangular waves and a moving direction detection unit that outputs a signal corresponding to a moving direction of the moving body based on the detection signals from the groups of sensor elements. The moving direction detection unit includes a delay function of generating an output signal at a time instant that is delayed by a predetermined time from a time instant when a moving direction of the moving body is changed.
摘要翻译： 提供了一种用于检测可以精确地检测位置的移动方向的装置，而不管移动方向如何。 移动方向检测器包括面向移动体的传感器元件组，以根据移动体的行进输出检测信号。 检测器包括将传感器元件组的输出信号转换为矩形波的信号处理单元和基于来自传感器元件组的检测信号输出与移动体的移动方向相对应的信号的移动方向检测单元。 移动方向检测单元包括在从移动体的移动方向改变的时刻起延迟预定时间的时刻产生输出信号的延迟功能。
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公开(公告)号：US20100106452A1
公开(公告)日：2010-04-29
申请号：US12423583
申请日：2009-04-14
IPC分类号： G06F15/00
CPC分类号： G01P13/045 , G01D5/2451 , G01P3/488
摘要： In detecting the position and the moving direction of a magnetic moving body, there is provided a moving direction detector that can accurately detect the position, regardless of the moving direction. The moving direction detector is provided with groups of sensor elements that face a moving body (4) and output detection signals in accordance with travel of the moving body (4), each of the groups including one (22) or more sensor elements (21a, 21b); signal processing units (303, 304) that convert output signals of the groups of sensor elements into rectangular waves; a moving direction detection unit (310) that outputs a signal corresponding to a moving direction of the moving body (4), based on the detection signals from the groups of sensor elements; output processing units (307, 308) that output signals with which a moving direction of the moving body can be determined, based on output signals of the signal processing units and an output signal of the moving direction detection unit; and an output determination unit (401) that determines output values of the output processing units. The moving direction detection unit (310) has a delay function of generating an output signal at a time instant that is delayed by a predetermined time from a time instant when a moving direction of the moving body (4) is changed.
摘要翻译： 在检测磁性移动体的位置和移动方向时，设置有可以精确地检测位置的移动方向检测器，而不管移动方向如何。 移动方向检测器设置有面对移动体（4）的传感器元件组，并且根据移动体（4）的行进输出检测信号，每个组包括一个（22个）或更多个传感器元件（21a） ，21b）; 信号处理单元（303,304），其将所述传感器组的组的输出信号转换为矩形波; 基于来自传感器元件组的检测信号，输出与移动体（4）的移动方向相对应的信号的移动方向检测单元（310） 输出处理单元（307,308），其基于所述信号处理单元的输出信号和所述移动方向检测单元的输出信号输出可以确定所述移动体的移动方向的信号; 以及确定输出处理单元的输出值的输出确定单元（401）。 移动方向检测单元具有延迟功能，该延迟功能在从移动体（4）的移动方向改变的时刻起延迟预定时间的时刻产生输出信号。
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公开(公告)号：US07982456B2
公开(公告)日：2011-07-19
申请号：US12277691
申请日：2008-11-25
IPC分类号： G01B7/30
CPC分类号： G01P13/045 , G01D11/245 , G01P3/487
摘要： In a magnetic detection apparatus, a magnetic detection sensor generates a sensor output signal whose high level and low level have different potentials in accordance with the moving direction of a magnetic moving object, and a computer unit includes three comparator circuits and detects the output signal of the magnetic detection sensor with three levels of comparison threshold values, so that the moving direction of the magnetic moving object can be detected accurately without any delay.
摘要翻译： 在磁检测装置中，磁检测传感器根据磁性运动物体的移动方向产生高电平和低电平具有不同电位的传感器输出信号，并且计算机单元包括三个比较电路，并检测输出信号 具有三级比较阈值的磁检测传感器，使得能够准确地检测磁性移动物体的移动方向而没有任何延迟。
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公开(公告)号：US09429632B2
公开(公告)日：2016-08-30
申请号：US14368675
申请日：2012-04-26
申请人： Yuji Kawano , Manabu Tsukamoto , Hiroshi Kobayashi
发明人： Yuji Kawano , Manabu Tsukamoto , Hiroshi Kobayashi
CPC分类号： G01R33/09 , G01B7/003 , G01B7/30 , G01D5/2451
摘要： A distortion of a signal of a magnetic position detection device is reduced so that precise position information at a high degree of accuracy can be obtained. The magnetic position detection device 100 includes a magnetic movable body 10, a bridge circuit 20, a correction circuit 30, and a detection circuit 40. The magnetic movable body 10 is magnetized so that N-poles and S-poles alternately appear and has a region in which distances between the N-poles and the S-poles are constant. The bridge circuit 20 is formed of first, second, third, and fourth field detection portions 2R1, 2R2, 2R3, and 2R4. The correction circuit 30 is formed of fifth and sixth field detection portions 2R5 and 2R6. The detection circuit 40 detects a position of the magnetic movable body 10 on the basis of a differential output Vout of the bridge circuit.
摘要翻译： 降低了磁性位置检测装置的信号的失真，从而可以获得高精度的精确位置信息。 磁性位置检测装置100包括磁性可移动体10，桥接电路20，校正电路30和检测电路40.磁性可移动体10被磁化，使得N极和S极交替出现，并具有 N极和S极之间的距离恒定的区域。 桥接电路20由第一，第二，第三和第四场检测部分2R1,2R2,2R3和2R4形成。 校正电路30由第五和第六场检测部分2R5和2R6形成。 检测电路40基于桥式电路的差分输出Vout来检测磁性可动体10的位置。
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公开(公告)号：US20120280677A1
公开(公告)日：2012-11-08
申请号：US13519927
申请日：2010-12-14
CPC分类号： G01D5/147 , G01D5/145 , G01D5/24438 , G01R29/12 , G01R33/09
摘要： A magnetic position detecting device (10) includes a magnet (4); first to fourth magnetoelectric conversion elements (1A to 1D) formed on a virtual plane along a substrate (3); and a flux guide (5) made of a magnetic material. The flux guide (5) includes first and second protrusions (9B, 9A) provided at a distance from each other in the X-axis direction parallel to the virtual plane. As seen in the Z-axis direction perpendicular to the virtual plane, a center portion (MP) recessed in a concave shape is provided in the flux guide (5) in a mid-portion between the first and second protrusions. The first and fourth magnetoelectric conversion elements (1A to 1D) are provided approximately in the mid-portion between the first and second protrusions so as to cover a part of the center portion (MP) as seen in the Z-axis direction. The second magnetoelectric conversion element (1B) is provided between the first protrusion (9B) and the center portion (MP) as seen in the Z-axis direction. The second magnetoelectric conversion element (1B) is provided between the second protrusion (9A) and the center portion (MP) as seen in the Z-axis direction.
摘要翻译： 磁性位置检测装置（10）包括磁体（4）; 沿着基板（3）形成在虚拟平面上的第一至第四磁电转换元件（1A至1D）; 和由磁性材料制成的磁通引导件（5）。 磁通引导件（5）包括在平行于虚拟平面的X轴方向上彼此间隔设置的第一和第二突起（9B，9A）。 从垂直于虚拟平面的Z轴方向看，在第一突起和第二突起之间的中间部分中的磁通引导件（5）中设置凹入凹部的中心部（MP）。 第一和第四磁电转换元件（1A至1D）大致设置在第一和第二突起之间的中间部分中，以便覆盖中心部分（MP）的沿Z轴方向的一部分。 第二磁电转换元件（1B）设置在从Z轴方向观察的第一突起（9B）和中心部（MP）之间。 第二磁电转换元件（1B）设置在Z轴方向上的第二突起（9A）和中心部（MP）之间。
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公开(公告)号：US09091565B2
公开(公告)日：2015-07-28
申请号：US13085133
申请日：2011-04-12
CPC分类号： G01D5/147 , G01D5/2451
摘要： A magnetic position detection apparatus includes a substrate, a magnet, a bridge circuit including first through fourth magneto-electric converting elements formed on the substrate, and a detection circuit. A substrate surface is substantially perpendicular to a magnet magnetization direction. The second and third magneto-electric converting elements are, when viewed along the magnet magnetization direction, disposed to be on or in the vicinity of a straight line passing through a center point of a magnetic pole of the magnet and parallel to a straight line perpendicular to both the magnet magnetization direction and the magnetic mobile object. The first and fourth magneto-electric converting elements are disposed so that, when not opposed to the magnetic mobile object, a component of a substrate of a magnetic field to be applied thereto is substantially same as that of a magnetic field to be applied to the second and third magneto-electric converting elements.
摘要翻译： 磁性位置检测装置包括基板，磁体，包括形成在基板上的第一至第四磁电转换元件的桥接电路和检测电路。 基板表面基本上垂直于磁体磁化方向。 第二和第三磁电转换元件当沿着磁化磁化方向观察时，被设置在通过磁体的磁极的中心点并平行于垂直于直线的直线的直线附近或附近 磁化方向和磁性移动体。 第一和第四磁电转换元件设置成当不与磁性移动体相对时，要施加到其上的磁场的基板的分量与施加到磁性移动体的磁场的分量基本相同 第二和第三磁电转换元件。
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