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1. 发明授权

US10079600B2 Low-power activation circuit with motion detector 有权
公开(公告)号：US10079600B2
公开(公告)日：2018-09-18
申请号：US15281776
申请日：2016-09-30
申请人： Infineon Technologies AG
发明人： Mario Motz
IPC分类号： G01R17/02 , H03K17/95 , H03K5/24 , G01D5/14 , G01P3/489 , G01P13/00 , G01R33/00 , H03K17/94 , G01R19/00
CPC分类号： H03K17/9517 , G01D5/142 , G01P3/489 , G01P13/00 , G01R17/02 , G01R19/0092 , G01R33/0029 , H03K5/2472 , H03K17/94
摘要： The present disclosure relates to a method and apparatus to perform a low power activation of a system. In one embodiment, the apparatus includes a sensor element configured to output a sensor output signal corresponding to a sensed quantity to a digital difference detection circuit. The digital difference detection circuit has a digital measurement element configured to track the sensor output signal and generate a digital signal therefrom, a digital storage element configured to store previous digital signals corresponding to the sensor output signal generated over time, and a difference detector configured to detect a difference between a current digital signal and at least one of the previous digital signals. If the difference is larger than a digital reference level, the difference detector causes an activation signal generator to generate an activation signal that awakens a system from a sleep mode or a low-power mode.

2. 发明授权

US10001503B2 Rotation sensor 有权
公开(公告)号：US10001503B2
公开(公告)日：2018-06-19
申请号：US14904818
申请日：2014-07-14
申请人： DENSO CORPORATION
发明人： Tetsuya Ohmi
IPC分类号： G01P3/48 , G01P3/487 , G01P3/481 , G01P3/488 , G01P3/489 , G01D5/245
CPC分类号： G01P3/487 , G01D5/2451 , G01P3/481 , G01P3/488 , G01P3/489
摘要： A rotation sensor has a magnetoelectric conversion unit that converts change of magnetic flux whose direction changes periodically with rotation of a rotator into an electric signal and a processing unit that processes the electric signal. The magnetoelectric conversion unit outputs a first detection signal and a second detection signal. The processing unit has a first comparison unit that compares a detection threshold and the first detection signal and a second comparison unit that compares a reference threshold and the second detection signal. The first comparison unit changes a voltage level of the detection threshold when the first detection signal exceeds or falls below the detection threshold and then restores the voltage level of the detection threshold based on the second detection signal and the reference threshold, and the first comparison unit converts the first detection signal into a pulse signal based on the detection threshold of the same voltage level.

3. 发明申请

US20180088144A1 Angular Velocity Measuring Device and Relative Angular Velocity Measuring Device 审中-公开
公开(公告)号：US20180088144A1
公开(公告)日：2018-03-29
申请号：US15704493
申请日：2017-09-14
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Katsuyuki HOJO
IPC分类号： G01P3/44
CPC分类号： G01P3/44 , G01P3/488 , G01P3/489
摘要： An angular velocity measuring device measures an angular velocity of a gear that is fixed to a rotary shaft. The angular velocity measuring device includes a pair of magnetic sensors that are arranged at positions facing a tooth flank of the gear and that detect a shape of the tooth flank in a noncontact manner, and a computation unit that is configured to generate a waveform obtained by synthesizing output detection signals of the pair of the magnetic sensors with each other and output an output waveform and calculate the angular velocity of the gear from the output waveform. The magnetic sensors are arranged such that the output detection signals are offset from each other by {(n−1)+(⅙)} pitches when one pitch is defined as one cycle of the shape of the tooth flank in a circumferential direction of the gear.

4. 发明申请

US20170184623A1 WHEEL SPEED SENSOR 审中-公开
公开(公告)号：US20170184623A1
公开(公告)日：2017-06-29
申请号：US15461023
申请日：2017-03-16
申请人： Continental Teves AG & Co. oHG
发明人： Ralf Endres
IPC分类号： G01P1/04 , G01P3/489 , B60R16/023 , G01P3/36
CPC分类号： G01P1/04 , B60R16/0231 , B60T8/171 , B60T8/885 , B60T2270/416 , B60Y2400/3032 , G01P3/36 , G01P3/489
摘要： A wheel speed sensor for a motor vehicle can be supplied with an operating voltage by a control device. The control device has a load resistance with a load resistance value. An operating voltage can be at a voltage input by the control device. An electrical circuit is designed to determine a turn-on or a turn-off voltage value according to the load resistance value. An operation control is designed to transfer the wheel speed sensor into a normal operation using the operating voltage, when the turn-on voltage value is exceeded, and to transfer the wheel speed sensor into an emergency operation using the operating voltage, when a turn-off voltage value is not met. In emergency operation only a low constant signal level is emitted.

5. 发明申请

US20160280180A1 SEAT-BELT RETRACTOR WITH DETERMINATION OF ANGLE OF ROTATION 有权
标题翻译：具有旋转角度的西带扣件
公开(公告)号：US20160280180A1
公开(公告)日：2016-09-29
申请号：US14778099
申请日：2014-03-18
申请人： TRW AUTOMOTIVE GMBH
发明人： Wolfgang Holbein
IPC分类号： B60R22/34 , G01P3/48 , G01D5/14
CPC分类号： B60R22/34 , B60R2022/3402 , G01D5/145 , G01P3/48 , G01P3/488 , G01P3/489
摘要： A belt retractor (10) is provided with a retractor shaft (12) and a device (26) for determining the rotational speed and/or the angle of rotation of the retractor shaft (12), with a rotating magnetic element (18), a stationary magnetic field sensor (24) and a stationary element guiding the magnetic flux (20) arranged between the rotating magnetic element (18) and the magnetic field sensor (24).
摘要翻译：带卷收器（10）设置有牵开器轴（12）和用于通过旋转磁性元件（18）确定牵开器轴（12）的旋转速度和/或旋转角度的装置（26）固定磁场传感器（24）和引导设置在旋转磁性元件（18）和磁场传感器（24）之间的磁通（20）的固定元件。

6. 发明授权

US09342485B2 Methods and systems for conditioning signals from a speed sensor 有权
标题翻译：调节速度传感器信号的方法和系统
公开(公告)号：US09342485B2
公开(公告)日：2016-05-17
申请号：US13755817
申请日：2013-01-31
申请人： General Electric Company
发明人： Michael Alan Tart , Michael Dean Evans
IPC分类号： G01P1/00 , G01P21/02 , G06F17/00 , G01P3/481 , G01P3/489
CPC分类号： G06F17/00 , G01P3/481 , G01P3/489 , G01P21/02
摘要： A circuit for use in conditioning a signal from a speed sensor. The circuit is configured to receive an analog signal from a speed sensor coupled to the circuit, acquire a threshold of the analog signal, generate a digital signal corresponding to the analog signal, based on the threshold, and output the digital signal.
摘要翻译：用于调节来自速度传感器的信号的电路。电路被配置为从耦合到电路的速度传感器接收模拟信号，获取模拟信号的阈值，基于阈值产生对应于模拟信号的数字信号，并输出数字信号。

7. 发明授权

US09267855B2 Method for determining the torque and/or angular speed of a rotating shaft and a device for carrying out same 有权
标题翻译：用于确定旋转轴的扭矩和/或角速度以及用于执行旋转轴的装置的方法
公开(公告)号：US09267855B2
公开(公告)日：2016-02-23
申请号：US13698741
申请日：2011-05-19
申请人： Jean-Michel Ameil , Thierry Brichler
发明人： Jean-Michel Ameil , Thierry Brichler
IPC分类号： G01L3/10 , G01P3/488 , G01P3/489
CPC分类号： G01L3/109 , G01P3/488 , G01P3/489
摘要： A method allowing the reliable and accurate calculation of the torque of a shaft using two phonic wheels and a sensor, the method including correlating the signal resulting from a rotation or one sixth of a rotation with the signal resulting from the subsequent rotation or one sixth of a rotation. The length of time between two passages of teeth is calculated by interpolating the cross-correlation function using least squares interpolation.
摘要翻译：一种允许使用两个声轮和传感器可靠且准确地计算轴的扭矩的方法，该方法包括将由旋转或六分之一旋转产生的信号与由后续旋转产生的信号或六分之一旋转通过使用最小二乘插值插值互相关函数来计算两次通过牙齿之间的时间长度。

8. 发明申请

US20150331006A1 Velocity Measurement Device and Velocity Measurement Method 审中-公开
标题翻译：速度测量装置和速度测量方法
公开(公告)号：US20150331006A1
公开(公告)日：2015-11-19
申请号：US14648826
申请日：2013-12-25
申请人： SCHAFT INC.
发明人： Jyunichi Urata , Masayuki Inaba
IPC分类号： G01P3/489 , G01D5/244
CPC分类号： G01P3/489 , G01D5/244 , G01P13/045
摘要： The present invention aims to easily suppress noise components of aliases when measuring a velocity based on an output from an encoder. The invention comprises a step for converting in which two-phase signals indicating the movement of a spinning body, etc., are converted to a ternary pulse train signal having a positive or a negative or a zero value corresponding to the phases of the two-phase signals, a step for low pass filtering in which a low frequency component of the pulse train signal is obtained by arithmetically processing the pulse train signal and filter coefficients, and a step for output-sampling in which the signal obtained by the step for low pass filtering is sampled at a predetermined sampling period. In the step for low pass filtering, a convolution (operation for convolution) between the pulse train signal obtained by sampling the pulse train signal at a predetermined period and the filter coefficients is carried out. Sampling the pulse train signal is synchronized with and has the same phase as reading the filter coefficients for the convolution. The sampled signal by the step for output-sampling is output as a velocity signal corresponding to the velocity determined by the two-phase signal.
摘要翻译：本发明的目的是在基于编码器的输出测量速度时容易地抑制别名的噪声分量。本发明包括一种转换步骤，其中指示旋转体等的移动的两相信号被转换成具有对应于二维相位的相位的正或负或零值的三进脉冲序列信号，相位信号，通过对脉冲序列信号和滤波器系数进行算术处理获得脉冲序列信号的低频分量的低通滤波步骤，以及通过该步骤获得的低信号的信号的输出采样步骤在预定的采样周期采样通滤波。在低通滤波的步骤中，执行通过以预定周期采样脉冲序列信号而获得的脉冲序列信号与滤波器系数之间的卷积（卷积操作）。脉冲串信号的采样与读取滤波器系数的卷积同步并具有相同的相位。输出采样步骤的采样信号作为与由两相信号确定的速度对应的速度信号输出。

9. 发明授权

US09170128B2 Motion sensor, method, and computer-readable storage medium providing a motion sensor with a vibration processor to set a state of a flag in response to selected ones of a plurality of test results being indicative of a passing conditions 有权
标题翻译：运动传感器，方法和计算机可读存储介质，其提供具有振动处理器的运动传感器，以响应于多个测试结果中的选定的测试结果来指示标志的状态来指示通过条件
公开(公告)号：US09170128B2
公开(公告)日：2015-10-27
申请号：US14259662
申请日：2014-04-23
申请人： Allegro Microsystems, LLC
发明人： Andrea Foletto , Devon Fernandez , Eric Burdette
IPC分类号： G01B7/30 , G01D5/12 , G01D5/14 , G01D5/244 , G01P3/487 , G01P3/488 , G01P3/489 , G01R25/00 , G01P21/02
CPC分类号： G01D5/12 , G01D5/145 , G01D5/2448 , G01P3/487 , G01P3/488 , G01P3/489 , G01P21/02 , G01R25/005
摘要： A motion sensor has a vibration processor to set a flag in response to a plurality of test results provided by a plurality of tests being indicative of a passing condition. A corresponding method and computer-readable storage medium can be used by the motion sensor.
摘要翻译：运动传感器具有振动处理器，以响应由指示通过状态的多个测试提供的多个测试结果来设置标志。运动传感器可以使用相应的方法和计算机可读存储介质。

10. 发明授权

US09151772B2 Speed detection device 有权
标题翻译：速度检测装置
公开(公告)号：US09151772B2
公开(公告)日：2015-10-06
申请号：US13582313
申请日：2010-03-16
申请人： Hiroshi Yoshikawa
发明人： Hiroshi Yoshikawa
IPC分类号： G01P11/00 , G01P15/00 , G01P3/489 , G06F7/499 , G01P3/481
CPC分类号： G01P3/489 , G01P3/481 , G06F7/4991
摘要： To include a pulse counting unit, a pulse timing unit, an overflow detection unit that holds a detected matter in an overflow register, a capture unit that holds an output of the pulse counting unit in a pulse counting register and holds an output of the pulse timing unit in a pulse timing register, and a computation unit (frequency calculation unit) that reads the pulse counting register, the pulse timing register, and the overflow register to calculate a frequency computation value, and when the pulse timing unit has overflowed, the computation unit adds a predetermined constant acquired by a period of a capture clock a period of a timing clock to pulse timing data at the previous interrupt to obtain pulse timing data acquired by a period of time from the last pulse edge a period of the timing clock.
摘要翻译：为了包括脉冲计数单元，脉冲定时单元，将检测到的物体保持在溢出寄存器中的溢出检测单元，将脉冲计数单元的输出保持在脉冲计数寄存器中并保持脉冲的输出的捕获单元脉冲定时寄存器中的定时单元和读取脉冲计数寄存器，脉冲定时寄存器和溢出寄存器的计算单元（频率计算单元）来计算频率计算值，并且当脉冲定时单元溢出时，计算单元将由捕获时钟的周期获取的预定常数与定时时钟的周期相加在先前的中断处的脉冲定时数据，以获得从定时时钟的周期的最后脉冲沿开始的一段时间获取的脉冲定时数据。

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