公开(公告)号：US5821745A

公开(公告)日：1998-10-13

申请号：US584069

申请日：1996-01-11

申请人： Yasuaki Makino ,  Susumu Kuroyanagi ,  Tomoatsu Makino

发明人： Yasuaki Makino ,  Susumu Kuroyanagi ,  Tomoatsu Makino

IPC分类号： G01P3/481 ,  G01D5/14 ,  G01D5/16 ,  G01D5/244 ,  G01D5/245 ,  G01P3/48 ,  G01P3/488 ,  G01B7/30 ,  H03K5/08

CPC分类号： G01D5/147 ,  G01D5/24428 ,  G01D5/2451 ,  G01P3/4802 ,  G01P3/488

摘要： Magnetoresistive elements are disposed facing a gear to form a sensor for detecting rotation of the gear. The signal output from MRE sensor is an alternating amplitude signal. An operational amplifier has a differential gain exceeding its operational limit relative to the amplitude value of the sensor signal, and it amplifies and outputs the difference between the sensor signal and a reference voltage. Comparators judge whether an output of the operational amplifier is within a predetermined amplitude range relative to the amplitude center thereof. When the op-amp output deviates from the predetermined amplitude range, transistors either charge or discharge a capacitor, so that the reference voltage can be changed closer to the output of the operational amplifier. Another comparator compares the output signal of the operational amplifier with a threshold value to output a binary-valued signal.

摘要翻译： 磁阻元件设置成面对齿轮以形成用于检测齿轮的旋转的传感器。 来自MRE传感器的信号输出是交变幅度信号。 运算放大器相对于传感器信号的振幅值具有超过其运行极限的差动增益，并放大并输出传感器信号与参考电压之间的差值。 比较器判断运算放大器的输出是否在相对于其幅度中心的预定幅度范围内。 当运算放大器输出偏离预定的幅度范围时，晶体管可以对电容器进行充电或放电，从而使参考电压可以更接近于运算放大器的输出。 另一个比较器将运算放大器的输出信号与阈值进行比较，以输出二进制值信号。

公开(公告)号：US5574364A

公开(公告)日：1996-11-12

申请号：US199337

申请日：1994-02-18

申请人： Kazuo Kajimoto ,  Tomoatsu Makino ,  Yasuaki Makino ,  Seiki Aoyama

发明人： Kazuo Kajimoto ,  Tomoatsu Makino ,  Yasuaki Makino ,  Seiki Aoyama

IPC分类号： F02D41/34 ,  G01D5/14 ,  G01D5/16 ,  G01D5/244 ,  G01D5/245 ,  G01R33/025 ,  G01B7/14 ,  G01B7/30

CPC分类号： G01D5/145 ,  F02D41/009 ,  G01D5/2457

摘要： A position detector which provides improved reference position detecting precision by stabilizing the output signal from magnetoelectric transducers in a reference position part. A rotor has a magnetized surface alternately provided with different magnetic poles and a reference positional part in which magnetic poles provided on the magnetized surface are partly omitted. A rotational angle sensor has MR elements laid out thereon in opposition to the magnetized surface of the rotor to output the voltage signal VS according to the magnetic field intensity in the magnetized surface due to the rotation of the rotor. A waveform processing circuit and a pulse signal processing signal shape the waveform of the voltage signal from the rotational angle sensor, and also generate the rotational angle pulse signal and a reference position pulse signal according to the waveform reforming signal. The reference positional part is arranged so that the magnetic field intensity therein can be within the saturation magnetic field region of the Mr elements.

摘要翻译： 一种位置检测器，其通过稳定来自参考位置部分中的来自磁电换能器的输出信号来提供改进的参考位置检测精度。 转子具有交替设置有不同磁极的磁化面和部分省略设置在磁化面上的磁极的基准位置部。 旋转角度传感器在其上布置有与元件的磁化表面相对的MR元件，以根据转子旋转而根据磁化表面中的磁场强度输出电压信号VS。 波形处理电路和脉冲信号处理信号对来自旋转角度传感器的电压信号的波形进行整形，并根据波形重整信号产生旋转角脉冲信号和基准位置脉冲信号。 参考位置部分被布置成使得其中的磁场强度可以在Mr元件的饱和磁场区域内。

公开(公告)号：US6020736A

公开(公告)日：2000-02-01

申请号：US511621

申请日：1995-08-07

申请人： Seiki Aoyama ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Izuru Shoji ,  Ichiro Izawa

发明人： Seiki Aoyama ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Izuru Shoji ,  Ichiro Izawa

IPC分类号： G01B7/30 ,  G01B7/00 ,  G01D5/14 ,  G01D5/16 ,  G01D5/18 ,  G01D5/245 ,  G01P3/488 ,  H01L43/08

CPC分类号： G01D5/147 ,  G01P3/488

摘要： A rotation object is made of a magnetic material and disposed within a predetermined range of an angle of rotation on a plane perpendicular to an axis of rotation. A bias magnet generates a bias magnetic field to the rotation body in a direction perpendicular to the axis of rotation. Magnetic resistance elements are disposed in the bias magnetic field on a plane including the axis of rotation at a position deviated from the position of the rotation object in the axial direction of the rotation body and inclined by about 45.degree. relative to a direction perpendicular to the axis of rotation.

摘要翻译： 旋转物体由磁性材料制成，并且设置在垂直于旋转轴线的平面上的旋转角度的预定范围内。 偏置磁体在垂直于旋转轴线的方向上向旋转体产生偏置磁场。 磁阻元件设置在包括旋转轴在旋转体的轴向方向上偏离旋转体的位置的旋转轴的平面上，并相对于垂直于旋转体的方向倾斜约45°的偏置磁场 旋转轴。

公开(公告)号：US5637995A

公开(公告)日：1997-06-10

申请号：US407999

申请日：1995-03-21

申请人： Ichiro Izawa ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Seiki Aoyama ,  Shigehiro Kasumi ,  Kenji Yagi ,  Kazuo Kajimoto ,  Masaki Takashima ,  Shinichi Konda

发明人： Ichiro Izawa ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Seiki Aoyama ,  Shigehiro Kasumi ,  Kenji Yagi ,  Kazuo Kajimoto ,  Masaki Takashima ,  Shinichi Konda

IPC分类号： G01D5/14 ,  G01P3/488 ,  G01R33/09 ,  G01P3/487 ,  G01B7/14

CPC分类号： G01D5/145 ,  G01P3/488 ,  G01R33/09

摘要： A magnetic detection device including a biasing magnet for generating a bias magnetic field directed to an object of detection having a magnetic material; a magnetoresistance effective element disposed at an inclination of about 45.degree. to the direction of the bias magnetic field to provide a change in resistance caused by the bias magnetic field in accordance with movement of the object of detection, so as to detect a change in state of the bias magnetic field via the change in resistance of the magnetoresistance effective element; and the biasing magnet having a hollow portion containing a holder for holding the magnetoresistance effective element in a position between a surface of the biasing magnet and the object of detection and close to the surface of the biasing element.

摘要翻译： 一种磁检测装置，包括用于产生指向具有磁性材料的检测对象的偏置磁场的偏置磁体; 磁阻有效元件以与偏置磁场方向成大约45度的倾斜度设置，以根据检测对象的移动来提供由偏置磁场引起的电阻变化，从而检测状态的变化 通过磁阻有效元件的电阻变化来产生偏置磁场; 所述偏置磁体具有中空部，所述中空部包含用于将所述磁阻有效元件保持在所述偏置磁体的表面与所述检测体之间并且靠近所述偏置元件的表面的位置的保持器。

公开(公告)号：US20070285291A1

公开(公告)日：2007-12-13

申请号：US11717169

申请日：2007-03-13

申请人： Yasuaki Makino ,  Susumu Kuroyanagi ,  Shinji Nakatani ,  Reiji Iwamoto ,  Hideki Hosokawa ,  Norikazu Ohta

发明人： Yasuaki Makino ,  Susumu Kuroyanagi ,  Shinji Nakatani ,  Reiji Iwamoto ,  Hideki Hosokawa ,  Norikazu Ohta

IPC分类号： H03M1/12

CPC分类号： H03K5/003 ,  H03K3/3565 ,  H03K5/084 ,  H04L25/063

摘要： A binarization circuit for binarizing a pulsative analog signal includes: a first comparator circuit for reversing an output signal when the analog signal becomes smaller than a threshold voltage and when the analog signal becomes larger than a high side threshold voltage; a second comparator circuit for reversing an output signal when the analog signal becomes larger than the threshold voltage and when the analog signal becomes smaller than a low side threshold voltage; and a selector circuit for inputting the output signals from the first and second comparator circuits and for reversing an output signal when the analog signal becomes smaller than the threshold voltage and when the analog signal becomes larger than the threshold voltage.

摘要翻译： 用于二值化脉冲模拟信号的二值化电路包括：第一比较器电路，用于当模拟信号变得小于阈值电压时以及当模拟信号变得大于高侧阈值电压时反转输出信号; 第二比较器电路，用于当模拟信号变得大于阈值电压时以及当模拟信号变得小于低侧阈值电压时反转输出信号; 以及选择器电路，用于输入来自第一和第二比较器电路的输出信号，并且当模拟信号变得小于阈值电压时以及当模拟信号变得大于阈值电压时反转输出信号。

公开(公告)号：US5644226A

公开(公告)日：1997-07-01

申请号：US396241

申请日：1995-03-01

申请人： Seiki Aoyama ,  Susumu Kuroyanagi ,  Ichirou Izawa ,  Yasuaki Makino

发明人： Seiki Aoyama ,  Susumu Kuroyanagi ,  Ichirou Izawa ,  Yasuaki Makino

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01P3/488 ,  G01V3/08 ,  G01B7/14 ,  G01D5/245 ,  H01L43/08

CPC分类号： G01D5/147 ,  G01P3/488 ,  G01V3/08

摘要： A magnetic detector which is small in size and is capable of preventing the occurrence of deformation in the waveform representing a change in the resistance. A bias magnet 2 is adhered to the support plate 1. A bias magnetic field is generated by the bias magnet 2 toward a gear 7. A substrate 3 is adhered onto the support plate 1, and magneto resistance elements are formed on the substrate 3 by vacuum evaporation. The magneto resistance elements are disposed in parallel with the magnetized surface of the bias magnet 2. The magneto resistance elements are disposed being tilted by about 45 degrees with respect to a vector that is in parallel with the N-pole surface of the bias magnet 2 in the bias magnetic field and is directed toward the outer peripheral edge. Due to the revolution of the gear 7, a change in the resistance takes place in the magneto resistance elements due to a change in the vector which is parallel with the N-pole surface of the bias magnet 2 in the bias magnetic field generated by the bias magnet 2 towards gear 7 and is directed toward the outer peripheral edge.

摘要翻译： 一种磁检测器，其尺寸小并且能够防止在表示电阻变化的波形中出现变形。 偏置磁铁2粘附到支撑板1上。偏置磁铁2向齿轮7产生偏置磁场。基板3粘附到支撑板1上，并且磁阻元件通过 真空蒸发。 磁阻元件与偏置磁体2的磁化表面平行设置。磁阻元件相对于与偏置磁体2的N极表面平行的矢量倾斜约45度 在偏置磁场中并且被引向外周边缘。 由于齿轮7的旋转，由于与由偏置磁铁2的N极表面平行的矢量的变化在磁阻元件中产生的偏置磁场中的电阻发生变化， 偏置磁体2朝向齿轮7并被引向外周边缘。

公开(公告)号：US08467441B2

公开(公告)日：2013-06-18

申请号：US13157906

申请日：2011-06-10

申请人： Hideo Sawaoka ,  Yasuaki Makino ,  Toshihiko Matsuoka

发明人： Hideo Sawaoka ,  Yasuaki Makino ,  Toshihiko Matsuoka

IPC分类号： H03K7/08

CPC分类号： H03K7/08 ,  H04L25/4902

摘要： In a PWM communication system, a sensor unit transmits as reference pulses transmission signals, which exhibit duty cycles of 100% and 0%, respectively, prior to transmission of a transmission signal, which has data items compressed thereinto by a signal processing circuit. An input capture circuit of an ECU measures the duty time and the PWM cycle of the transmission signal according to a timer clock of a timer circuit. A signal processing circuit of the ECU produces a duty cycle correction factor k based on the measured duty times and PWM cycles of the reference pulses, produces receiving data based on the duty time and the PWM cycle of the transmission signal, and the duty cycle correction factor, and separates the receiving data into sensor output values of a pressure sensor and a temperature sensor.

摘要翻译： 在PWM通信系统中，传感器单元作为参考脉冲发送传输信号，传输信号在传输信号之前分别表现出占有率为100％和0％的传输信号，传输信号具有由信号处理电路压缩的数据项。 ECU的输入捕捉电路根据定时器电路的定时器时钟来测量发送信号的占空比和PWM周期。 ECU的信号处理电路基于测量的占空比时间和参考脉冲的PWM周期产生占空比校正因子k，基于发送信号的占空比和PWM周期产生接收数据，并且占空比校正 因子，并将接收数据分离成压力传感器和温度传感器的传感器输出值。

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。

公开(公告)号：US20060180763A1

公开(公告)日：2006-08-17

申请号：US11334458

申请日：2006-01-19

申请人： Takahiko Yoshida ,  Yasuaki Makino

发明人： Takahiko Yoshida ,  Yasuaki Makino

IPC分类号： G01J5/02

CPC分类号： G01N21/3504 ,  G01N21/3151 ,  G01N2021/3133 ,  G01N2021/3181 ,  G01N2021/399 ,  G01N2201/062

摘要： An infrared gas detector includes an infrared light source emitting infrared light of a specific wavelength, an infrared sensor detecting the infrared light from the infrared light source, and a gas cell accommodating the infrared light source and the infrared sensor. The infrared light source contains an LED or a semiconductor laser. Since the wavelength of the infrared light from the infrared light source is specific, the energy efficiency is high. The LED and the semiconductor laser are small devices, and therefore, the infrared light source and the infrared sensor are easily accommodated in the same small package.

摘要翻译： 红外线气体检测器包括发射特定波长的红外光的红外光源，检测来自红外光源的红外光的红外传感器，以及容纳红外光源和红外线传感器的气室。 红外光源包含LED或半导体激光器。 由于来自红外光源的红外光的波长是特定的，所以能量效率高。 LED和半导体激光器是小型器件，因此红外光源和红外传感器容易地容纳在相同的小封装中。

公开(公告)号：US20060170406A1

公开(公告)日：2006-08-03

申请号：US11340545

申请日：2006-01-27

申请人： Takashi Kawashima ,  Yasuaki Makino ,  Masato Ishihara ,  Yukiaki Yogo ,  Satoshi Oohira

发明人： Takashi Kawashima ,  Yasuaki Makino ,  Masato Ishihara ,  Yukiaki Yogo ,  Satoshi Oohira

IPC分类号： G05F1/635

CPC分类号： G05F1/635 ,  H01L43/065 ,  H01L43/14

摘要： An N-type epitaxial layer is formed on a p-type silicon substrate. Four N+ regions (diffusion regions used as electrodes) are formed in the N-type epitaxial layer. An insulation layer having a fixed depth is formed around each of the N+ regions on a principal surface of an epitaxial layer. The insulation layer restricts a current path region formed between the N+ regions. Side surfaces of the N+ regions are covered by the insulation layer. The N+ regions are brought into contact with the epitaxial layer by a bottom surface exposed from the insulation layer.

摘要翻译： 在p型硅衬底上形成N型外延层。 在N型外延层中形成四个N + +区域（用作电极的扩散区）。 在外延层的主表面上的每个N + +区上形成具有固定深度的绝缘层。 绝缘层限制形成在N + +区域之间的电流路径区域。 N + +区域的侧面被绝缘层覆盖。 通过从绝缘层露出的底表面使N + +区与外延层接触。