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1. 发明授权

US07107843B2 Angular velocity sensor 失效
公开(公告)号：US07107843B2
公开(公告)日：2006-09-19
申请号：US10541322
申请日：2005-01-07
申请人： Satoshi Ohuchi , Keisuke Kuroda , Takeshi Yamamoto
发明人： Satoshi Ohuchi , Keisuke Kuroda , Takeshi Yamamoto
IPC分类号： G01P9/04 , G01P19/56
CPC分类号： G01C19/5614
摘要： The present invention provides an angular velocity sensor that can diagnose abnormalities without having on a tuning fork vibrator special abnormality diagnostic signal input electrodes or reference potential ground electrodes to reduce errors in detecting angular velocity. Switches (45) and (48) are used to generate drive signals of the same phase at output terminals (49) and (50), thereby bending arms (2) and (3) in the Z-axis direction of tuning fork vibrator 1. The electric charges generated from tenth electrode (22) and 12th electrode (25) formed respectively on arms (2) and (3) are amplified respectively at first amplifier (62) and second amplifier (63). The outputs of these amplifiers are inputted to differential amplifier (64), whose output is compared by comparator (81) with a prescribed value generated by reference value generator (82). When the output exceeds the prescribed value, comparator (81) determines an abnormality.

2. 发明申请

US20060117851A1 Angular velocity sensor 失效
标题翻译：角速度传感器
公开(公告)号：US20060117851A1
公开(公告)日：2006-06-08
申请号：US10541322
申请日：2005-01-07
申请人： Satoshi Ohuchi , Keisuke Kuroda , Takeshi Yamamoto
发明人： Satoshi Ohuchi , Keisuke Kuroda , Takeshi Yamamoto
IPC分类号： G01P9/04 , G01P1/04 , G01P21/00
CPC分类号： G01C19/5614
摘要： The present invention provides an angular velocity sensor that can diagnose abnormalities without having on a tuning fork vibrator special abnormality diagnostic signal input electrodes or reference potential ground electrodes to reduce errors in detecting angular velocity. Switches (45) and (48) are used to generate drive signals of the same phase at output terminals (49) and (50), thereby bending arms (2) and (3) in the Z-axis direction of tuning fork vibrator 1. The electric charges generated from tenth electrode (22) and 12th electrode (25) formed respectively on arms (2) and (3) are amplified respectively at first amplifier (62) and second amplifier (63). The outputs of these amplifiers are inputted to differential amplifier (64), whose output is compared by comparator (81) with a prescribed value generated by reference value generator (82). When the output exceeds the prescribed value, comparator (81) determines an abnormality.
摘要翻译：本发明提供一种角速度传感器，其能够在不具有音叉振动器特殊异常诊断信号输入电极或参考电位接地电极的情况下诊断异常，以减少检测角速度的误差。开关（45）和（48）用于在输出端子（49）和（50）产生相同相位的驱动信号，从而在音叉振子1的Z轴方向上弯曲臂（2）和（3）分别在第一放大器（62）和第二放大器（63）上分别放大由分别形成在臂（2）和（3）上的第十电极（22）和第十二电极（25）产生的电荷。这些放大器的输出被输入到差分放大器（64），其输出通过比较器（81）与由参考值发生器（82）产生的规定值进行比较。当输出超出规定值时，比较器（81）确定异常。

3. 发明申请

US20070151373A1 Angular velocity sensor 有权
标题翻译：角速度传感器
公开(公告)号：US20070151373A1
公开(公告)日：2007-07-05
申请号：US10589954
申请日：2005-02-17
申请人： Takeshi Uemura , Keisuke Kuroda , Masayoshi Murakami
发明人： Takeshi Uemura , Keisuke Kuroda , Masayoshi Murakami
IPC分类号： G01L3/00
CPC分类号： G01C19/5607
摘要： An angular velocity sensor for precisely calculating an angular velocity by taking the mass balance of the transducer into account is provided. The sensor includes a tuning fork type transducer (23) having a pair of arm portions (22) at a shaft portion (21) and formed of a piezoelectric element, and a control circuit portion (24) that drives the transducer (23) and detects the angular velocity applied to the transducer (23). The control circuit portion (24) includes a correction circuit portion (35) that generates a correction signal to remove, as a noise component, a signal component of a sense signal (29) detected erroneously as if an angular velocity occurred when no angular velocity is occurring in the transducer (23), from signal components of the sense signal (29).
摘要翻译：提供了通过考虑换能器的质量平衡来精确计算角速度的角速度传感器。该传感器包括一个音叉型传感器（23），它在轴部分（21）处具有由压电元件形成的一对臂部分（22）和驱动换能器（23）的控制电路部分（24）检测施加到换能器（23）的角速度。控制电路部分（24）包括校正电路部分（35），该校正电路部分（35）产生校正信号，以将作为噪声分量的检测信号（29）的信号分量误差地检测为如果在没有角速度从传感信号（29）的信号分量出现在换能器（23）中。

4. 发明授权

US08875577B2 Oscillator circuit, method for manufacturing oscillator circuit, inertial sensor using the oscillator circuit, and electronic device 有权
标题翻译：振荡电路，制造振荡电路的方法，使用振荡电路的惯性传感器和电子装置
公开(公告)号：US08875577B2
公开(公告)日：2014-11-04
申请号：US13143570
申请日：2010-02-12
申请人： Takeshi Uemura , Keisuke Kuroda
发明人： Takeshi Uemura , Keisuke Kuroda
IPC分类号： G06F1/04 , H05K3/30 , G01C19/5726 , G01C19/5614 , G01C19/5776 , H03B5/32
CPC分类号： G01C19/5726 , G01C19/5614 , G01C19/5776 , H03B5/32 , Y10T29/4913
摘要： An oscillator circuit includes an oscillator, a filter that filters a monitoring signal output from the oscillator and outputs the filtered signal, a driver that amplifies the filtered signal to generate a driving signal, and a controller operable to control a passing characteristic of the filter based on the monitoring signal. The oscillator performs a vibration while being driven by the driving signal, and outputs the monitoring signal according to the vibration. This oscillator circuit allows the oscillator to vibrate stably.
摘要翻译：振荡器电路包括：振荡器，对从振荡器输出的监视信号进行滤波并输出滤波后的信号的滤波器;放大经滤波的信号以产生驱动信号的驱动器;以及控制器，用于控制基于滤波器的通过特性对监控信号。振荡器在被驱动信号驱动的同时进行振动，并根据振动输出监视信号。该振荡电路使振荡器稳定地振动。

5. 发明授权

US08144041B2 Electronic device 有权
标题翻译：电子设备
公开(公告)号：US08144041B2
公开(公告)日：2012-03-27
申请号：US13001960
申请日：2010-09-02
申请人： Keisuke Kuroda
发明人： Keisuke Kuroda
IPC分类号： H03M1/10
CPC分类号： G01C19/5776 , H03M1/1076 , H03M1/12
摘要： An electronic device includes a frequency variable circuit, a filter, and an output voltage decision circuit. The frequency variable circuit changes the sampling frequency of an analog-digital converter. The filter limits a pass band of an output signal of the analog-digital converter. The output voltage decision circuit determines the noise level of the output signal of the analog-digital converter after the output signal passes through the filter. The electronic device performs a self-diagnosis as follows. The frequency variable circuit changes the sampling frequency of the analog-digital converter to a frequency outside of the pass band of the filter so as to change the quantization noise level of the analog-digital converter. Then, the output voltage decision circuit determines whether the integral of the quantization noise level is within a predetermined range.
摘要翻译：电子设备包括频率可变电路，滤波器和输出电压判定电路。频率可变电路改变模拟数字转换器的采样频率。滤波器限制模拟数字转换器的输出信号的通带。输出电压判定电路在输出信号通过滤波器之后，确定模拟数字转换器的输出信号的噪声电平。电子装置如下执行自诊断。频率可变电路将模拟数字转换器的采样频率改变到滤波器的通带之外的频率，以便改变模拟数字转换器的量化噪声电平。然后，输出电压判定电路判定量化噪声电平的积分是否在规定的范围内。

6. 发明申请

US20110285444A1 OSCILLATOR CIRCUIT, METHOD FOR MANUFACTURING OSCILLATOR CIRCUIT, INERTIAL SENSOR USING THE OSCILLATOR CIRCUIT, AND ELECTRONIC DEVICE 有权
标题翻译：振荡器电路，制造振荡器电路的方法，使用振荡器电路的惯性传感器和电子设备
公开(公告)号：US20110285444A1
公开(公告)日：2011-11-24
申请号：US13143570
申请日：2010-02-12
申请人： Takeshi Uemura , Keisuke Kuroda
发明人： Takeshi Uemura , Keisuke Kuroda
IPC分类号： G06F1/04 , H05K3/30
CPC分类号： G01C19/5726 , G01C19/5614 , G01C19/5776 , H03B5/32 , Y10T29/4913
摘要： An oscillator circuit includes an oscillator, a filter that filters a monitoring signal output from the oscillator and outputs the filtered signal, a driver that amplifies the filtered signal to generate a driving signal, and a controller operable to control a passing characteristic of the filter based on the monitoring signal. The oscillator performs a vibration while being driven by the driving signal, and outputs the monitoring signal according to the vibration. This oscillator circuit allows the oscillator to vibrate stably.
摘要翻译：振荡器电路包括：振荡器，对从振荡器输出的监视信号进行滤波并输出滤波后的信号的滤波器;放大经滤波的信号以产生驱动信号的驱动器;以及控制器，用于控制基于滤波器的通过特性对监控信号。振荡器在被驱动信号驱动的同时进行振动，并根据振动输出监视信号。该振荡电路使振荡器稳定地振动。

7. 发明授权

US07520184B2 Angular velocity sensor 有权
标题翻译：角速度传感器
公开(公告)号：US07520184B2
公开(公告)日：2009-04-21
申请号：US10589954
申请日：2005-02-17
申请人： Takeshi Uemura , Keisuke Kuroda , Masayoshi Murakami
发明人： Takeshi Uemura , Keisuke Kuroda , Masayoshi Murakami
IPC分类号： G01L3/02
CPC分类号： G01C19/5607
摘要： An angular velocity sensor for precisely calculating an angular velocity by taking the mass balance of the transducer into account is provided. The sensor includes a tuning fork type transducer (23) having a pair of arm portions (22) at a shaft portion (21) and formed of a piezoelectric element, and a control circuit portion (24) that drives the transducer (23) and detects the angular velocity applied to the transducer (23). The control circuit portion (24) includes a correction circuit portion (35) that generates a correction signal to remove, as a noise component, a signal component of a sense signal (29) detected erroneously as if an angular velocity occurred when no angular velocity is occurring in the transducer (23), from signal components of the sense signal (29).
摘要翻译：提供了通过考虑换能器的质量平衡来精确计算角速度的角速度传感器。该传感器包括一个音叉型传感器（23），它在轴部分（21）处具有由压电元件形成的一对臂部分（22）和驱动换能器（23）的控制电路部分（24）检测施加到换能器（23）的角速度。控制电路部分（24）包括校正电路部分（35），该校正电路部分（35）产生校正信号，以消除作为噪声分量的错误检测的感测信号（29）的信号分量，如同角速度从传感信号（29）的信号分量出现在换能器（23）中。

8. 发明授权

US06933753B2 Sensor signal output circuit 有权
标题翻译：传感器信号输出电路
公开(公告)号：US06933753B2
公开(公告)日：2005-08-23
申请号：US10490729
申请日：2003-08-01
申请人： Keisuke Kuroda , Takeshi Uemura , Toshiyuki Nozoe
发明人： Keisuke Kuroda , Takeshi Uemura , Toshiyuki Nozoe
IPC分类号： H03F3/45 , H03K5/08 , H03K5/22 , H03K5/153
CPC分类号： H03K5/08 , H03F3/45183 , H03F2203/45566 , H03F2203/45636 , H03F2203/45664 , H03F2203/45674
摘要： A sensor signal output circuit includes a first differential amplifier, a first load resistor, a first transistor, a second transistor and a limiter section. The limiter section includes at least a second differential amplifier, which includes an input end coupled to output terminal and an other input end coupled to second reference voltage setting part, a second load resistor for a second differential amplifier, and a third transistor, which includes a gate connected to an output end of the second differential amplifier and a source connected to a gate of the second transistor.
摘要翻译：传感器信号输出电路包括第一差分放大器，第一负载电阻器，第一晶体管，第二晶体管和限幅器部分。限幅器部分至少包括第二差分放大器，其包括耦合到输出端的输入端和耦合到第二参考电压设置部分的另一输入端，用于第二差分放大器的第二负载电阻器和第三晶体管，其包括连接到第二差分放大器的输出端的栅极和连接到第二晶体管的栅极的源极。

9. 发明申请

US20120024057A1 ANGULAR VELOCITY SENSOR 有权
标题翻译：角速度传感器
公开(公告)号：US20120024057A1
公开(公告)日：2012-02-02
申请号：US12996634
申请日：2010-03-08
申请人： Takeshi Sasaki , Keisuke Kuroda
发明人： Takeshi Sasaki , Keisuke Kuroda
IPC分类号： G01C19/56
CPC分类号： G01C19/5614
摘要： In an angular velocity sensor, there is generated a first parasitic capacitance generated between a first driving electrode and a sensing electrode, and there is generated a second parasitic capacitance generated between a second driving electrode and the sensing electrode. The ratio of the amplitude of a first drive signal to the amplitude of a second drive signal is set to the reciprocal of the ratio of the first parasitic capacitance to the second parasitic capacitance. This allows the noise contents generated by capacitive coupling to be efficiently offset, thereby improving detection accuracy of an angular velocity sensing signal.
摘要翻译：在角速度传感器中，产生在第一驱动电极和感测电极之间产生的第一寄生电容，并且产生在第二驱动电极和感测电极之间产生的第二寄生电容。将第一驱动信号的幅度与第二驱动信号的幅度的比率设定为第一寄生电容与第二寄生电容的比的倒数。这允许由电容耦合产生的噪声内容被有效地偏移，从而提高角速度感测信号的检测精度。

10. 发明授权

US07347093B2 Angular velocity sensor and automobile using the same 有权
标题翻译：角速度传感器和汽车使用相同
公开(公告)号：US07347093B2
公开(公告)日：2008-03-25
申请号：US10541320
申请日：2005-02-03
申请人： Keisuke Kuroda , Takeshi Uemura
发明人： Keisuke Kuroda , Takeshi Uemura
IPC分类号： G01P19/56
CPC分类号： G01C19/5776 , G01C19/5614
摘要： The invention provides an angular velocity sensor which is provided with a smoothing circuit having a large smoothing time constant so that it can be reduced in size and integrated into an IC. Smoothing circuit (9) is provided with first switch (11), first capacitor (12), second switch (13), second capacitor (17) and control signal feeding module (15). Control signal feeding module (15) feeds first switch (11) and second switch (13) with a signal for controlling ON/OFF. According to this configuration, an equivalently large smoothing time constant can be set by reducing the frequency of the switching control signal of control signal feeding module (15), even if the capacities of first capacitor (12) and second capacitor (17) are small. Especially in case the capacitors are integrated into an IC, their area of occupation can be reduced to reduce the size of the angular velocity sensor and integrate the same into the IC.
摘要翻译：本发明提供了一种角速度传感器，其具有平滑电路，该平滑电路具有大的平滑时间常数，使得其可以减小尺寸并集成到IC中。平滑电路（9）设置有第一开关（11），第一电容器（12），第二开关（13），第二电容器（17）和控制信号馈送模块（15）。控制信号馈送模块（15）用第一开关（11）和第二开关（13）馈送用于控制ON / OFF的信号。根据该结构，即使第一电容器（12）和第二电容器（17）的容量小，也可以通过降低控制信号供给模块（15）的开关控制信号的频率来设定等效的大的平滑时间常数。特别是在电容器集成到IC中的情况下，可以减小其占用面积，以减小角速度传感器的尺寸并将其集成到IC中。

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