公开(公告)号：US06647795B2

公开(公告)日：2003-11-18

申请号：US10157229

申请日：2002-05-30

申请人： Yasutoshi Suzuki ,  Seiichiro Ishio ,  Keiichi Shimaoka ,  Norikazu Ohta ,  Hirofumi Funabashi

发明人： Yasutoshi Suzuki ,  Seiichiro Ishio ,  Keiichi Shimaoka ,  Norikazu Ohta ,  Hirofumi Funabashi

IPC分类号： G01L900

CPC分类号： G01L1/144 ,  G01L1/148

摘要： A capacitive physical load sensor includes a substrate, which has fixed electrodes, and a diaphragm, which has movable electrodes. The diaphragm is located across a gap from the substrate, and retaining parts for the diaphragm are formed around the diaphragm. Protruding parts extend into the gap from the diaphragm or from the substrate. The protruding parts support the diaphragm at different levels of deformation to alter the characteristics of the diaphragm and extend its range.

公开(公告)号：US06744258B2

公开(公告)日：2004-06-01

申请号：US10189565

申请日：2002-07-08

申请人： Seiichiro Ishio ,  Yasutoshi Suzuki ,  Hajime Ito ,  Yasuaki Makino ,  Norikazu Ohta ,  Keiichi Shimaoka ,  Hirofumi Funabashi

发明人： Seiichiro Ishio ,  Yasutoshi Suzuki ,  Hajime Ito ,  Yasuaki Makino ,  Norikazu Ohta ,  Keiichi Shimaoka ,  Hirofumi Funabashi

IPC分类号： G01R3112

CPC分类号： G01D3/08

摘要： In a capacitive sensor apparatus, a capacitive sensor includes a plurality of physical-quantity-detection capacitors each having a movable electrode and a fixed electrode. A conversion device operates for converting an output signal of the capacitive sensor into an apparatus output signal. Each of the physical-quantity-detection capacitors is selectively connected and disconnected to and from the conversion device. A determination is made as to whether or not each of the physical-quantity-detection capacitors fails in response to the sensor output signal. When it is determined that a first one of the physical-quantity-detection capacitors fails, the first one is disconnected from the conversion device and a second one of the physical-quantity-detection capacitors is connected to the conversion device.

摘要翻译： 在电容传感器装置中，电容式传感器包括多个物理量检测电容器，每个物理量检测电容器具有可动电极和固定电极。 转换装置用于将电容式传感器的输出信号转换成装置输出信号。 每个物理量检测电容器被选择性地连接到转换装置和从转换装置断开。 确定每个物理量检测电容器是否响应于传感器输出信号而失败。 当确定物理量检测电容器中的第一个电容器发生故障时，第一个物理量检测电容器与转换装置断开连接，并且第二个物理量检测电容器连接到转换装置。

公开(公告)号：US06809527B2

公开(公告)日：2004-10-26

申请号：US10189599

申请日：2002-07-08

申请人： Seiichiro Ishio ,  Yasutoshi Suzuki ,  Hajime Ito ,  Yasuaki Makino ,  Norikazu Ohta ,  Keiichi Shimaoka ,  Hirofumi Funahashi

发明人： Seiichiro Ishio ,  Yasutoshi Suzuki ,  Hajime Ito ,  Yasuaki Makino ,  Norikazu Ohta ,  Keiichi Shimaoka ,  Hirofumi Funahashi

IPC分类号： G01R2726

CPC分类号： G01R27/2605

摘要： First and second predetermined charging voltages are applied between the movable and fixed electrodes of a capacitive type of sensor to measure first and second capacitances between the movable and fixed electrodes, respectively. The first and second electrostatic capacitances are compared to obtain a characteristic of the sensor from a result of comparison. In measuring the first and second capacitances, first and second charging voltages are generated of which magnitudes are determined in accordance with the first and second capacitances, respectively. Equalization is made between the first output voltage when the first charging voltage is applied between the movable and fixed electrodes in a predetermined normal condition of the movable electrode and the second output voltage outputted when the second charging voltage is applied between the movable and fixed electrodes in the predetermined normal condition.

摘要翻译： 第一和第二预定充电电压被施加在电容式传感器的可移动和固定电极之间，以分别测量可移动和固定电极之间的第一和第二电容。 比较第一和第二静电电容，以从比较结果获得传感器的特性。 在测量第一和第二电容时，分别产生根据第一和第二电容确定幅度的第一和第二充电电压。 在第一充电电压在可动电极的预定正常状态下施加于可动电极与固定电极之间的第一输出电压和在可动电极和固定电极之间施加第二充电电压时输出的第二输出电压之间进行均衡 预定的正常状态。

公开(公告)号：US20060176043A1

公开(公告)日：2006-08-10

申请号：US11311182

申请日：2005-12-20

申请人： Yasuaki Makino ,  Norikazu Ohta ,  Yoshie Ohira ,  Hirofumi Funabashi

发明人： Yasuaki Makino ,  Norikazu Ohta ,  Yoshie Ohira ,  Hirofumi Funabashi

IPC分类号： G05F3/04 ,  G05F3/08

CPC分类号： G05F3/30

摘要： A reference voltage circuit includes an operational amplifier, a first fixed resistance resistor, a second fixed resistance resistor, a third fixed resistance resistor, a first diode and a second diode. The reference voltage circuit further includes a fourth fixed resistance resistor having an end connected to a non-inverting input terminal of the operational amplifier and the other end connected to the first diode. The reference voltage circuit is characterized by a value of the resistance of the fourth resistor being less than the resistance of the first resistor and a temperature coefficient of the fourth resistor being greater than any of the temperature coefficients of the first, second and third resistors.

摘要翻译： 参考电压电路包括运算放大器，第一固定电阻电阻，第二固定电阻电阻，第三固定电阻电阻，第一二极管和第二二极管。 参考电压电路还包括第四固定电阻电阻器，其端部连接到运算放大器的非反相输入端子，另一端连接到第一二极管。 参考电压电路的特征在于第四电阻器的电阻小于第一电阻器的电阻值，第四电阻器的温度系数大于第一，第二和第三电阻器的任何温度系数。

公开(公告)号：US07233136B2

公开(公告)日：2007-06-19

申请号：US11311182

申请日：2005-12-20

申请人： Yasuaki Makino ,  Norikazu Ohta ,  Yoshie Ohira ,  Hirofumi Funabashi

发明人： Yasuaki Makino ,  Norikazu Ohta ,  Yoshie Ohira ,  Hirofumi Funabashi

IPC分类号： G05F3/16 ,  G05F3/20

CPC分类号： G05F3/30

摘要： A reference voltage circuit includes an operational amplifier, a first fixed resistance resistor, a second fixed resistance resistor, a third fixed resistance resistor, a first diode and a second diode. The reference voltage circuit further includes a fourth fixed resistance resistor having an end connected to a non-inverting input terminal of the operational amplifier and the other end connected to the first diode. The reference voltage circuit is characterized by a value of the resistance of the fourth resistor being less than the resistance of the first resistor and a temperature coefficient of the fourth resistor being greater than any of the temperature coefficients of the first, second and third resistors.

摘要翻译： 参考电压电路包括运算放大器，第一固定电阻电阻，第二固定电阻电阻，第三固定电阻电阻，第一二极管和第二二极管。 参考电压电路还包括第四固定电阻电阻器，其端部连接到运算放大器的非反相输入端子，另一端连接到第一二极管。 参考电压电路的特征在于第四电阻器的电阻小于第一电阻器的电阻值，第四电阻器的温度系数大于第一，第二和第三电阻器的任何温度系数。

公开(公告)号：US07582489B2

公开(公告)日：2009-09-01

申请号：US12068988

申请日：2008-02-14

申请人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

发明人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

IPC分类号： H01L21/00 ,  G01B7/30

CPC分类号： H01L27/22 ,  G01P3/487 ,  G01R33/02 ,  Y10T428/1193

摘要： A magnetic sensor apparatus includes a semiconductor substrate and a magnetic impedance device for detecting a magnetic field. The magnetic impedance device is disposed on the substrate. The magnetic sensor apparatus has minimum size and is made with low manufacturing cost. Here, the magnetic impedance device detects a magnetic field in such a manner that impedance of the device is changed in accordance with the magnetic filed when an alternating current is applied to the device and the impedance is measured by an external electric circuit.

摘要翻译： 磁传感器装置包括半导体衬底和用于检测磁场的磁阻抗装置。 磁阻抗装置设置在基板上。 磁传感器装置具有最小尺寸并且制造成本低。 这里，磁阻抗装置以这样的方式检测磁场，使得当将交流电流施加到装置并且通过外部电路测量阻抗时，根据磁场改变装置的阻抗。

公开(公告)号：US20080145956A1

公开(公告)日：2008-06-19

申请号：US12068988

申请日：2008-02-14

申请人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

发明人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

IPC分类号： H01L21/00

CPC分类号： H01L27/22 ,  G01P3/487 ,  G01R33/02 ,  Y10T428/1193

摘要： A magnetic sensor apparatus includes a semiconductor substrate and a magnetic impedance device for detecting a magnetic field. The magnetic impedance device is disposed on the substrate. The magnetic sensor apparatus has minimum size and is made with low manufacturing cost. Here, the magnetic impedance device detects a magnetic field in such a manner that impedance of the device is changed in accordance with the magnetic filed when an alternating current is applied to the device and the impedance is measured by an external electric circuit.

摘要翻译： 磁传感器装置包括半导体衬底和用于检测磁场的磁阻抗装置。 磁阻抗装置设置在基板上。 磁传感器装置具有最小尺寸并且制造成本低。 这里，磁阻抗装置以这样的方式检测磁场，使得当将交流电流施加到装置并且通过外部电路测量阻抗时，根据磁场改变装置的阻抗。

公开(公告)号：US07417269B2

公开(公告)日：2008-08-26

申请号：US10717902

申请日：2003-11-21

申请人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

发明人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

IPC分类号： H01L27/148 ,  H01L29/768

CPC分类号： H01L27/22 ,  G01P3/487 ,  G01R33/02 ,  Y10T428/1193

摘要： A magnetic sensor apparatus includes a semiconductor substrate and a magnetic impedance device for detecting a magnetic field. The magnetic impedance device is disposed on the substrate. The magnetic sensor apparatus has minimum size and is made with low manufacturing cost. Here, the magnetic impedance device detects a magnetic field in such a manner that impedance of the device is changed in accordance with the magnetic filed when an alternating current is applied to the device and the impedance is measured by an external electric circuit.

摘要翻译： 磁传感器装置包括半导体衬底和用于检测磁场的磁阻抗装置。 磁阻抗装置设置在基板上。 磁传感器装置具有最小尺寸并且制造成本低。 这里，磁阻抗装置以这样的方式检测磁场，使得当将交流电流施加到装置并且通过外部电路测量阻抗时，根据磁场改变装置的阻抗。

公开(公告)号：US20070108970A1

公开(公告)日：2007-05-17

申请号：US11650929

申请日：2007-01-09

申请人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

发明人： Kenichi Ao ,  Yasutoshi Suzuki ,  Hideya Yamadera ,  Norikazu Ohta ,  Hirofumi Funahashi

IPC分类号： G01B7/30 ,  G01R33/02

CPC分类号： H01L27/22 ,  G01P3/487 ,  G01R33/02 ,  Y10T428/1193

摘要： A magnetic sensor apparatus includes a semiconductor substrate and a magnetic impedance device for detecting a magnetic field. The magnetic impedance device is disposed on the substrate. The magnetic sensor apparatus has minimum size and is made with low manufacturing cost. Here, the magnetic impedance device detects a magnetic field in such a manner that impedance of the device is changed in accordance with the magnetic filed when an alternating current is applied to the device and the impedance is measured by an external electric circuit.

摘要翻译： 磁传感器装置包括半导体衬底和用于检测磁场的磁阻抗装置。 磁阻抗装置设置在基板上。 磁传感器装置具有最小尺寸并且制造成本低。 这里，磁阻抗装置以这样的方式检测磁场，使得当将交流电流施加到装置并且通过外部电路测量阻抗时，根据磁场改变装置的阻抗。

公开(公告)号：US08008948B2

公开(公告)日：2011-08-30

申请号：US12000304

申请日：2007-12-11

申请人： Yasuaki Makino ,  Hiroshi Okada ,  Reiji Iwamoto ,  Nobukazu Oba ,  Shinji Nakatani ,  Norikazu Ohta ,  Hideki Hosokawa

发明人： Yasuaki Makino ,  Hiroshi Okada ,  Reiji Iwamoto ,  Nobukazu Oba ,  Shinji Nakatani ,  Norikazu Ohta ,  Hideki Hosokawa

IPC分类号： G01R19/00 ,  G06M1/10

CPC分类号： G01R19/04

摘要： A peak voltage detector circuit detects a peak voltage of an input voltage. The input voltage is input into a first input terminal of a comparator. A counter circuit counts up a counter value in synchronization with a first clock signal, when a signal output from the comparator is in a first state. The counter circuit counts down the counter value in synchronization with a second clock signal. A digital-analog conversion circuit outputs an output voltage corresponding to the counter value, and the output voltage is input into a second input terminal of the comparator. The first clock signal has a wave period shorter than that of the second clock signal.

摘要翻译： 峰值电压检测电路检测输入电压的峰值电压。 输入电压被输入到比较器的第一输入端。 当从比较器输出的信号处于第一状态时，计数器电路与第一时钟信号同步地计数计数器值。 计数器电路与第二个时钟信号同步地计数计数器值。 数字模拟转换电路输出对应于计数器值的输出电压，输出电压被输入到比较器的第二输入端。 第一时钟信号具有比第二时钟信号短的波周期。