公开(公告)号：US08502529B2

公开(公告)日：2013-08-06

申请号：US12956544

申请日：2010-11-30

申请人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

发明人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

IPC分类号： G01R33/02

CPC分类号： G01R33/072 ,  H01L43/06

摘要： Provided is a magnetic sensor device capable of suppressing a variation in determination for detection or canceling of a magnetic field intensity, which is caused by noise generated from respective constituent elements included in the magnetic sensor device and external noise, to thereby achieve high-precision magnetic reading. The magnetic sensor device includes: a first D-type flip-flop and a second D-type flip-flop each having an input terminal connected to an output terminal of a comparator; an XOR circuit having a first input terminal and a second input terminal which are connected to an output terminal of the first D-type flip-flop and an output terminal of the second D-type flip-flop, respectively; a selector circuit; and a third D-type flip-flop having an input terminal connected to an output terminal of the selector circuit. The selector circuit includes: a first input terminal (A) and a second input terminal (B) which are connected to the output terminal of the second D-type flip-flop and an output terminal of the third D-type flip-flop, respectively; and a select terminal connected to an output terminal of the XOR circuit. The selector circuit selectively outputs input signals from the first input terminal (A) and the second input terminal (B), according to an output of the XOR circuit.

摘要翻译： 提供一种磁传感器装置，其能够抑制由磁传感器装置中包含的各构成元件产生的噪声和外部噪声引起的磁场强度的检测或取消的判定的变化，从而实现高精度磁性 读。 磁传感器装置包括：第一D型触发器和第二D型触发器，每个具有连接到比较器的输出端子的输入端子; 具有分别连接到第一D型触发器的输出端和第二D型触发器的输出端的第一输入端和第二输入端的异或电路; 选择器电路; 以及具有连接到选择器电路的输出端的输入端的第三D型触发器。 选择器电路包括：连接到第二D型触发器的输出端和第三D型触发器的输出端的第一输入端（A）和第二输入端（B） 分别; 以及连接到XOR电路的输出端子的选择端子。 选择器电路根据异或电路的输出选择性地输出来自第一输入端（A）和第二输入端（B）的输入信号。

公开(公告)号：US08193807B2

公开(公告)日：2012-06-05

申请号：US12779582

申请日：2010-05-13

申请人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

发明人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

IPC分类号： G01R33/06

CPC分类号： G01R33/0029

摘要： Provided is a magnetic sensor device including: a switching circuit that controls switching of a terminal pair of the magnetoelectric conversion element to which a supply voltage is applied and a terminal pair to which detection voltage of a magnetic intensity is output; a differential amplifier that differentially amplifies the detection voltage; a first capacitor connected to a first output terminal of the differential amplifier; a second switch connected to a second output terminal of the differential amplifier; a comparator that has a first input terminal connected to the first capacitor and a second input terminal connected to the second switch; a first switch connected between the first input terminal and an output terminal of the comparator; and a second capacitor connected to the second input terminal of the comparator; and a detection voltage setting circuit connected to the second capacitor, in which effects of respective offset voltages of the magnetoelectric conversion element, the amplifier, and the comparator are suppressed, and an arbitrary detection magnetic field intensity is set to enable accurate magnetic reading.

摘要翻译： 提供一种磁传感器装置，包括：切换电路，其控制施加电源电压的磁电转换元件的端子对和输出磁场强度检测电压的端子对的切换; 差分放大器，差分放大检测电压; 连接到差分放大器的第一输出端的第一电容器; 连接到差分放大器的第二输出端的第二开关; 比较器，其具有连接到第一电容器的第一输入端子和连接到第二开关的第二输入端子; 连接在比较器的第一输入端子和输出端子之间的第一开关; 以及连接到比较器的第二输入端的第二电容器; 以及连接到第二电容器的检测电压设置电路，其中抑制了磁电转换元件，放大器和比较器的各个偏移电压的影响，并且设置任意检测磁场强度以使得能够进行精确的磁读取。

公开(公告)号：US07721169B2

公开(公告)日：2010-05-18

申请号：US10367130

申请日：2003-02-14

申请人： Masahiro Yokomichi ,  Satoshi Machida ,  Yoshihiro Shibuya ,  Yukito Kawahara ,  Minoru Ariyama

发明人： Masahiro Yokomichi ,  Satoshi Machida ,  Yoshihiro Shibuya ,  Yukito Kawahara ,  Minoru Ariyama

IPC分类号： G01R31/28 ,  H04N1/46

CPC分类号： H04N5/3742 ,  G11C2029/3202 ,  H04N5/343

摘要： A scanning circuit has path switches connected between a plurality of data flip-flop circuits of the scanning circuit for sequentially reading an output signal in synchronism with a clock. A plurality of control signal lines select the path switches to arbitrarily skip reading of the flip-flop circuits that do not require the scanning circuit and always fix a potential of the skipped data flip-flop circuit. Only the arbitrary data is read, and in the case where unnecessary data exists, reading is skipped, to thereby increase the read rate.

摘要翻译： 扫描电路具有连接在扫描电路的多个数据触发器电路之间的路径开关，用于与时钟同步地顺序读取输出信号。 多个控制信号线选择路径切换以任意地跳过不需要扫描电路的触发电路的读取，并且始终固定跳过的数据触发器电路的电位。 仅读取任意数据，并且在存在不必要的数据的情况下，跳过读取，从而增加读取速率。

公开(公告)号：US20090079411A1

公开(公告)日：2009-03-26

申请号：US12192421

申请日：2008-08-15

申请人： Minoru ARIYAMA

发明人： Minoru ARIYAMA

IPC分类号： G05F1/648

CPC分类号： H03K17/9502 ,  H03K17/9517

摘要： To provide a variable voltage dividing circuit capable of changing voltage values of a detection point and a release point along with a change in power supply voltage without changing a hysteresis width. The variable voltage dividing circuit according to the present invention includes: a voltage dividing unit which includes a resistor string formed of a plurality of resistors connected in series, and outputs divided voltages divided at connection points of the plurality of resistors, one end of the resistor string being applied with a first voltage, another end thereof being applied with a second voltage; a first constant current source connected to a first connection point of the resistor string; and a second constant current source connected to a second connection point located symmetrically to the first connection point with respect to a center of the resistor string in the resistor string, in which, in accordance with a voltage difference between the first voltage and the second voltage, any one of the first constant current source and the second constant current source subtracts a first adjustment current from a current flowing through the resistor string, and another thereof feeds a second adjustment current to the resistor string.

摘要翻译： 提供一种能够改变检测点和释放点的电压值以及电源电压变化而不改变滞后宽度的可变分压电路。 根据本发明的可变分压电路包括：分压单元，其包括由串联连接的多个电阻器形成的电阻器串，并且输出在多个电阻器的连接点处分开的分压，电阻器的一端 串被施加第一电压，其另一端被施加第二电压; 连接到所述电阻串的第一连接点的第一恒流源; 以及第二恒流源，其连接到相对于电阻器串中的电阻器串的中心对称地位于第一连接点的第二连接点，其中，根据第一电压和第二电压之间的电压差 第一恒定电流源和第二恒定电流源中的任何一个从流经电阻串的电流中减去第一调整电流，另一个将第二调整电流馈送到电阻串。

公开(公告)号：US07508258B2

公开(公告)日：2009-03-24

申请号：US11703026

申请日：2007-02-06

申请人： Hirokazu Yoshizawa ,  Ryoichi Anzai ,  Toshiyuki Uchida ,  Akira Takeda ,  Minoru Ariyama ,  Atsushi Igarashi

发明人： Hirokazu Yoshizawa ,  Ryoichi Anzai ,  Toshiyuki Uchida ,  Akira Takeda ,  Minoru Ariyama ,  Atsushi Igarashi

IPC分类号： H03F1/02

CPC分类号： H03F1/3211 ,  H03F3/387 ,  H03F3/45475 ,  H03F3/45986 ,  H03F3/45995 ,  H03F2203/45138 ,  H03F2203/45212 ,  H03F2203/45614 ,  H03F2203/45616 ,  H03F2203/45681 ,  H03F2203/45726

摘要： Provided is a chopper amplifier circuit capable of eliminating an influence of a slew rate of an amplifier and suppressing spike generation to thereby obtain an output signal having little harmonic distortion. The chopper amplifier circuit according to the present invention includes: a first chopper circuit for chopping an input signal by a first pulse and a second pulse shifted from each other in phase by a half cycle, switching a relation of connection between an input terminal pair and an output terminal pair at a timing of the chopping, and outputting the input signal as a modulated signal; an amplifier for amplifying the modulated signal and outputting the modulated signal thus amplified as an amplified signal; a first sample hold circuit for holding the amplified signal at the first pulse and outputting the amplified signal at the second pulse; and a second sample hold circuit for holding the amplified signal at the second pulse and outputting the amplified signal at the first pulse.

摘要翻译： 提供了能够消除放大器的转换速率的影响并抑制尖峰发生从而获得具有很小的谐波失真的输出信号的斩波放大器电路。 根据本发明的斩波放大器电路包括：第一斩波电路，用于通过第一脉冲斩波输入信号和相位偏移半个周期的第二脉冲，切换输入端子对和 在斩波的定时输出端子对，并输出该输入信号作为调制信号; 放大器，用于放大经调制的信号并输出​​被放大的被调制信号作为放大信号; 第一采样保持电路，用于保持放大的信号处于第一脉冲，并以第二脉冲输出放大的信号; 以及第二采样保持电路，用于将放大的信号保持在第二脉冲，并以第一脉冲输出放大的信号。

公开(公告)号：US08207778B2

公开(公告)日：2012-06-26

申请号：US12961063

申请日：2010-12-06

申请人： Manabu Fujimura ,  Minoru Ariyama ,  Daisuke Muraoka ,  Tomoki Hikichi

发明人： Manabu Fujimura ,  Minoru Ariyama ,  Daisuke Muraoka ,  Tomoki Hikichi

IPC分类号： H03K17/16 ,  H03K17/30

CPC分类号： G01D3/08

摘要： Provided is a physical quantity sensor capable of improving physical quantity detection precision thereof. The physical quantity sensor includes a bridge resistance type physical quantity detection element for generating a voltage based on a bias current and a physical quantity, a current supply circuit for supplying the bias current to the physical quantity detection element, and a leakage current control circuit for causing leakage currents flowing when switches of the current supply circuit are in an off state to flow into a ground terminal.

摘要翻译： 提供能够提高物理量检测精度的物理量传感器。 物理量传感器包括用于产生基于偏置电流和物理量的电压的桥接电阻型物理量检测元件，用于向物理量检测元件提供偏置电流的电流供应电路和用于向物理量检测元件提供偏置电流的漏电流控制电路， 导致当电流供给电路的开关处于关闭状态时流入接地端子的漏电流。

公开(公告)号：US20110127989A1

公开(公告)日：2011-06-02

申请号：US12956518

申请日：2010-11-30

申请人： Tomoki Hikichi ,  Minoru Ariyama ,  Daisuke Muraoka ,  Manabu Fujimura

发明人： Tomoki Hikichi ,  Minoru Ariyama ,  Daisuke Muraoka ,  Manabu Fujimura

IPC分类号： G05F3/16

CPC分类号： G05F3/242

摘要： Provided is a constant current circuit capable of low current consumption operation, which is prevented from repeating a start-up state and a zero steady state and entering an oscillating state when power is activated. When power is activated, until a node (A) reaches a start-up state, an excitation current is continued to be supplied to a node (B), to thereby reliably start up the constant current circuit in a short period of time without repeating the start-up state and the zero steady state.

摘要翻译： 提供一种能够实现低电流消耗操作的恒定电流电路，其在电力被激活时被防止重复启动状态和零稳定状态并进入振荡状态。 当电源被激活时，直到节点（A）达到启动状态，继续向节点（B）提供励磁电流，从而在短时间内可靠地启动恒流电路，而不重复 启动状态和零稳定状态。

公开(公告)号：US20100308815A1

公开(公告)日：2010-12-09

申请号：US12779582

申请日：2010-05-13

申请人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

发明人： Daisuke Muraoka ,  Minoru Ariyama ,  Tomoki Hikichi ,  Manabu Fujimura

IPC分类号： G01R33/02

CPC分类号： G01R33/0029

摘要： Provided is a magnetic sensor device including: a switching circuit that controls switching of a terminal pair of the magnetoelectric conversion element to which a supply voltage is applied and a terminal pair to which detection voltage of a magnetic intensity is output; a differential amplifier that differentially amplifies the detection voltage; a first capacitor connected to a first output terminal of the differential amplifier; a second switch connected to a second output terminal of the differential amplifier; a comparator that has a first input terminal connected to the first capacitor and a second input terminal connected to the second switch; a first switch connected between the first input terminal and an output terminal of the comparator; and a second capacitor connected to the second input terminal of the comparator; and a detection voltage setting circuit connected to the second capacitor, in which effects of respective offset voltages of the magnetoelectric conversion element, the amplifier, and the comparator are suppressed, and an arbitrary detection magnetic field intensity is set to enable accurate magnetic reading.

摘要翻译： 提供一种磁传感器装置，包括：切换电路，其控制施加电源电压的磁电转换元件的端子对和输出磁场强度检测电压的端子对的切换; 差分放大器，差分放大检测电压; 连接到差分放大器的第一输出端的第一电容器; 连接到差分放大器的第二输出端的第二开关; 比较器，其具有连接到第一电容器的第一输入端子和连接到第二开关的第二输入端子; 连接在比较器的第一输入端子和输出端子之间的第一开关; 以及连接到比较器的第二输入端的第二电容器; 以及连接到第二电容器的检测电压设置电路，其中抑制了磁电转换元件，放大器和比较器的各个偏移电压的影响，并且设置任意检测磁场强度以使得能够进行精确的磁读取。

公开(公告)号：US20100117715A1

公开(公告)日：2010-05-13

申请号：US12614939

申请日：2009-11-09

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： H01L35/00

CPC分类号： G01R33/0029 ,  G01R33/07

摘要： Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circuit scale. The sensor circuit is also capable of temperature compensation because temperature changes of reference voltages (VTH11 and VTH12) and reference voltages (VTH21 and VTH22) match a temperature change of an output signal (OUTA) of an amplifier circuit (AMP1) which is caused by a temperature change of an output signal of a Hall element (HAL1).

摘要翻译： 提供了一种电路规模小但能够进行温度补偿的传感器电路。 补偿温度的参考电压电路（BL1）仅包括分压电路，因此传感器电路的电路规模小。 传感器电路还能够进行温度补偿，因为参考电压（VTH11和VTH12）和参考电压（VTH21和VTH22）的温度变化与放大器电路（AMP1）的输出信号（OUTA）的温度变化是否匹配，这是由 霍尔元件（HAL1）的输出信号的温度变化。

公开(公告)号：US20100117637A1

公开(公告)日：2010-05-13

申请号：US12614924

申请日：2009-11-09

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： G01R33/00 ,  H03K5/22

CPC分类号： H03K5/24 ,  G01R33/07

摘要： Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circuit scale. The sensor circuit is also capable of temperature compensation because temperature changes of a reference voltage (VTH1) and a reference voltage (VTH2) match a temperature change of an output signal (OUTA) of an amplifier circuit (AMP1) which is caused by a temperature change of an output signal of a Hall element (HAL1).

摘要翻译： 提供了一种电路规模小但能够进行温度补偿的传感器电路。 补偿温度的参考电压电路（BL1）仅包括分压电路，因此传感器电路的电路规模小。 传感器电路还能够进行温度补偿，因为参考电压（VTH1）和参考电压（VTH2）的温度变化与放大器电路（AMP1）的输出信号（OUTA）的温度变化相匹配，这是由温度 霍尔元件（HAL1）的输出信号的改变。