公开(公告)号：US5854572A

公开(公告)日：1998-12-29

申请号：US867743

申请日：1997-06-03

申请人： Seiki Aoyama ,  Yasuaki Makino

发明人： Seiki Aoyama ,  Yasuaki Makino

IPC分类号： G01P3/481 ,  G01P3/488 ,  G01P21/02 ,  H03G3/30 ,  H03G3/20

CPC分类号： H03G3/3026 ,  G01P21/02 ,  G01P3/488

摘要： An automatic gain control circuit for controlling the gain of an amplifier amplifying an ac signal is provided which includes a resistance circuit, a comparing circuit, a gain control determining circuit, and a gain controlling circuit. The resistance circuit includes a plurality of resistors connected in series through taps. The comparing circuit compares an output signal of the amplifier with reference upper and lower limit values to determine whether the output signal of the amplifier is within a desired amplitude range of the reference upper limit value to the reference lower limit value or not. The gain control determining circuit determines whether the output signal of the amplifier has exceeded the upper and lower limit values sequentially during a complete cycle thereof for determining whether the gain of the amplifier should be changed or not. The gain controlling circuit selectively short-circuits the taps on both sides of each of the resistors of the resistance circuit to change a total resistance of the resistance circuit for controlling the gain of the amplifier when the output signal of the amplifier has exceeded the upper and lower limit values sequentially.

摘要翻译： 提供一种用于控制放大ac信号的放大器的增益的自动增益控制电路，其包括电阻电路，比较电路，增益控制确定电路和增益控制电路。 电阻电路包括通过抽头串联连接的多个电阻器。 比较电路将放大器的输出信号与基准上限值和下限值进行比较，以确定放大器的输出信号是否在基准上限值的期望幅度范围内至参考下限值。 增益控制确定电路在其完整循环期间确定放大器的输出信号是否顺序地超过上限值和下限值，以确定放大器的增益是否应改变。 增益控制电路选择性地短路电阻电路的每个电阻器的两侧的抽头，以改变当放大器的输出信号超过上限时控制放大器的增益的电阻电路的总电阻， 下限值。

公开(公告)号：US5619134A

公开(公告)日：1997-04-08

申请号：US393563

申请日：1995-02-23

申请人： Takamoto Watanabe ,  Yasuaki Makino

发明人： Takamoto Watanabe ,  Yasuaki Makino

IPC分类号： G01D3/00 ,  G01D5/244 ,  G01D5/245 ,  G01P3/489 ,  G01R25/00 ,  G01R33/12 ,  G01R33/00 ,  G01B7/00 ,  G01R33/02 ,  H01L43/08

CPC分类号： G01D5/24404 ,  G01R33/12

摘要： In a physical quantity detecting device for converting a physical quantity into changes in the cycle of a pulse signal and for amplifying the cycle to convert it into digital data, detecting accuracy is improved by increasing the sampling frequency without reducing the degree of the amplification of the cycle of the signal. In a physical quantity detecting device wherein pulse signals having oscillation frequencies changing depending on the ambient strength of magnetism are output from oscillators and wherein the cycles of the pulse signals are amplified by counters and decoder portions and are input to a pulse phase difference encoding circuit to convert the phase difference into digital data, the digital data is interpolated using the pulse signal from one of the oscillators as a sampling signal. This makes it possible to interpolate the digital data to accurately detect the strength of magnetism without providing a special oscillation device for inputting a sampling signal to the interpolation circuit.

摘要翻译： 在用于将物理量转换为脉冲信号周期变化的物理量检测装置中，并且用于放大周期以将其转换为数字数据，通过增加采样频率来提高检测精度，而不会降低采样频率的放大程度 信号周期。 在物理量检测装置中，其中振荡频率根据磁场的环境强度而变化的脉冲信号从振荡器输出，并且其中脉冲信号的周期由计数器和解码器部分放大，并被输入到脉冲相位差编码电路 将相位差转换为数字数据，使用来自振荡器之一的脉冲信号作为采样信号来内插数字数据。 这使得可以内插数字数据以精确地检测磁场的强度，而不需要提供用于将采样信号输入到内插电路的专用振荡装置。

公开(公告)号：US08901480B2

公开(公告)日：2014-12-02

申请号：US13637545

申请日：2011-09-05

申请人： Katsunori Michiyama ,  Takamitsu Ookura ,  Noboru Endoh ,  Yasuaki Makino ,  Takanori Makino ,  Jyun Ishihara

发明人： Katsunori Michiyama ,  Takamitsu Ookura ,  Noboru Endoh ,  Yasuaki Makino ,  Takanori Makino ,  Jyun Ishihara

IPC分类号： H01J5/02 ,  H01L31/0216 ,  G01J1/02 ,  G01J1/06 ,  G01J1/44 ,  H01L27/146 ,  H01L27/144

CPC分类号： H01L31/02164 ,  G01J1/0266 ,  G01J1/06 ,  G01J1/44 ,  H01L27/1446 ,  H01L27/14605 ,  H01L27/14623 ,  H01L27/14625

摘要： An optical sensor includes: first and second light receiving elements on a semiconductor substrate; a light blocking film over the semiconductor substrate via a light transmitting film; and first and second openings corresponding to the light receiving elements and disposed in the light blocking film. First and second virtual lines are defined to extend from the centers of the first and second light receiving elements and pass through the centers of the first and second openings, respectively. At least one of elevation angles and left-right angles of the first and second virtual lines are different. The photosensitive area of the first light receiving element is larger than the aperture area of the first opening. The photosensitive area of the second light receiving element is larger than the aperture area of the second opening.

摘要翻译： 光学传感器包括：半导体衬底上的第一和第二光接收元件; 通过透光膜在半导体衬底上的遮光膜; 以及对应于光接收元件并设置在遮光膜中的第一和第二开口。 第一和第二虚拟线被限定为从第一和第二光接收元件的中心延伸并分别穿过第一和第二开口的中心。 第一和第二虚拟线的仰角和左右角中的至少一个是不同的。 第一光接收元件的感光区域大于第一开口的开口面积。 第二光接收元件的感光区域大于第二开口的开口面积。

公开(公告)号：US20110310954A1

公开(公告)日：2011-12-22

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：US20080211544A1

公开(公告)日：2008-09-04

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： H03K5/1532

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.

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：US07028568B2

公开(公告)日：2006-04-18

申请号：US10637563

申请日：2003-08-11

申请人： Masatoshi Tokunaga ,  Yasuaki Makino

发明人： Masatoshi Tokunaga ,  Yasuaki Makino

IPC分类号： G01J5/00

CPC分类号： B29C70/72 ,  G01D11/245 ,  G01K7/16 ,  Y10T29/49007

摘要： A sensor includes a sensing portion for sensing physical quantity, a connector portion integrated with the sensing portion for electrically connecting the sensing portion and an outer circuit outside the sensor, a sensor casing for accommodating the sensing portion, and a connector casing for accommodating the connector portion. Both the sensor casing and the connector casing are made of thermoplastic resin. The sensor casing has a predetermined portion exposed outside from the connector casing. The other portion of the sensor casing is covered with the connector casing.

摘要翻译： 传感器包括用于感测物理量的感测部分，与感测部分集成的用于电连接感测部分和传感器外部的外部电路的连接器部分，用于容纳感测部分的传感器壳体，以及用于容纳连接器的连接器壳体 一部分。 传感器外壳和连接器外壳均由热塑性树脂制成。 传感器壳体具有从连接器壳体向外露出的预定部分。 传感器外壳的另一部分被连接器外壳覆盖。

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：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：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。