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：US20100201447A1

公开(公告)日：2010-08-12

申请号：US12662530

申请日：2010-04-21

申请人： Akira Hyogo ,  Satoshi Tanaka ,  Tetsuro Sawai ,  Kenichi Agawa ,  Hirotada Honma ,  Ryutaro Saito ,  Tomoki Hikichi ,  Keitaro Sekine

发明人： Akira Hyogo ,  Satoshi Tanaka ,  Tetsuro Sawai ,  Kenichi Agawa ,  Hirotada Honma ,  Ryutaro Saito ,  Tomoki Hikichi ,  Keitaro Sekine

IPC分类号： H03F3/16

CPC分类号： H04B1/26 ,  H03D7/165

摘要： A radio-frequency circuit comprises a low-noise amplifier, an NMOS mixer for converting a radio-frequency signal output from the low-noise amplifier into an intermediate-frequency signal, a polyphase filter for removing image noises, and a PMOS mixer for converting the intermediate-frequency signal passed through the polyphase filter into a baseband signal.

摘要翻译： 射频电路包括低噪声放大器，用于将从低噪声放大器输出的射频信号转换为中频信号的NMOS混频器，用于去除图像噪声的多相滤波器，以及用于转换的PMOS混合器 中频信号通过多相滤波器进入基带信号。

公开(公告)号：US08476891B2

公开(公告)日：2013-07-02

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：US20130076350A1

公开(公告)日：2013-03-28

申请号：US13609972

申请日：2012-09-11

申请人： Daisuke MURAOKA ,  Minoru ARIYAMA ,  Tomoki HIKICHI ,  Kentaro FUKAI

发明人： Daisuke MURAOKA ,  Minoru ARIYAMA ,  Tomoki HIKICHI ,  Kentaro FUKAI

IPC分类号： G01R33/02

CPC分类号： G01R33/072 ,  G01R33/0023

摘要： A magnetic sensor device for generating a logic output in accordance with a magnetic field intensity applied to a magnetoelectric conversion element includes: a comparator for inputting amplified output signals of the magnetoelectric conversion element, and outputting a comparison result; and a logic circuit for performing arithmetic processing on an output signal of the comparator. Only when the logic output is changed by a change in the magnetic field intensity, the logic circuit performs successive matching determination of logic outputs a plurality of times. Thus, the 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, may be reduced while suppressing electric power consumption.

摘要翻译： 用于根据施加到磁电转换元件的磁场强度产生逻辑输出的磁传感器装置包括：比较器，用于输入磁电转换元件的放大的输出信号，并输出比较结果; 以及用于对比较器的输出信号执行算术处理的逻辑电路。 只有当逻辑输出通过磁场强度的变化而变化时，逻辑电路多次执行逻辑输出的连续匹配确定。 因此，可以在抑制电力消耗的同时减小由磁传感器装置中包含的各构成要素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断变化。

公开(公告)号：US20110133812A1

公开(公告)日：2011-06-09

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

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：US08305075B2

公开(公告)日：2012-11-06

申请号：US12891286

申请日：2010-09-27

申请人： Tomoki Hikichi ,  Minoru Ariyama

发明人： Tomoki Hikichi ,  Minoru Ariyama

IPC分类号： G01R33/07

CPC分类号： G01R33/072

摘要： Provided is a magnetic sensor circuit of low power consumption, in which a magnetic detection level less depends on a resistance value of an internal resistor of a power source. A comparator circuit compares a voltage which is based on a magnetic field and generated after sampling under a state in which power is supplied to mainly a Hall element and an amplifier circuit to drop a power supply voltage, with a reference voltage after sampling under the same state. Both the voltages are generated based on the power supply voltage dropped by an internal resistor. Therefore, the magnetic detection level less depends on a resistance value of the internal resistor. The comparator circuit may be disabled during a sample period, and the Hall element and the amplifier circuit may be disabled during a comparison period, and hence power consumption of the magnetic sensor circuit is reduced by corresponding power.

摘要翻译： 提供了一种低功耗的磁传感器电路，其中磁检测电平较小取决于电源的内部电阻器的电阻值。 比较器电路将基于磁场的电压并且在向主要霍尔元件供电的状态下的采样之后产生的电压和放大电路降低电源电压，同时对其进行采样之后的参考电压 州。 两个电压都是基于内部电阻下降的电源电压产生的。 因此，磁检测电平较小取决于内部电阻器的电阻值。 在采样周期期间可以禁止比较器电路，并且在比较期间可以禁止霍尔元件和放大器电路，因此磁传感器电路的功率消耗由相应的功率降低。

公开(公告)号：US20110241662A1

公开(公告)日：2011-10-06

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：US07459906B2

公开(公告)日：2008-12-02

申请号：US12004158

申请日：2007-12-19

申请人： Tomoki Hikichi

发明人： Tomoki Hikichi

IPC分类号： G01R33/07 ,  G01R33/02 ,  H01L43/06

CPC分类号： G01R33/07

摘要： To detect a magnetic flux density of a magnetic field applied from an outside, a semiconductor magnetic sensor of the present invention includes: a transistor (MP101) formed on a side of one, side of a hall element (100), for driving the hall element (100), the transistor (MP101) having a drain connected to a terminal (C101) formed on the one side; a transistor (MP102) formed on the side of the one side and having a drain connected to a terminal (C102) formed on the one side; a transistor (MN101) formed on a side of another side opposite to the one side and having a drain connected to a terminal (C103) formed on the another side; a transistor (MN102) formed on the side of the another side and having a drain connected to a terminal (C104) formed on the another side.

摘要翻译： 为了检测从外部施加的磁场的磁通密度，本发明的半导体磁传感器包括：形成在霍尔元件（100）的一侧的一侧的用于驱动大厅的晶体管（MP101） 元件（100），具有连接到形成在一侧的端子（C101）的漏极的晶体管（MP101）; 形成在一侧的侧面并具有与形成在一侧的端子（C102）连接的漏极的晶体管（MP102）; 形成在与该一侧相反的另一侧的一侧并且具有与形成在另一侧上的端子（C103）连接的漏极的晶体管（MN101） 形成在另一侧的侧面并且具有与形成在另一侧上的端子（C104）连接的漏极的晶体管（MN102）。