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11. 发明授权

US08069009B2 Physical quantity detection circuit and physical quantity sensor device 有权
标题翻译：物理量检测电路和物理量传感器装置
公开(公告)号：US08069009B2
公开(公告)日：2011-11-29
申请号：US12618055
申请日：2009-11-13
申请人： Fumihito Inukai , Seiichi Muroya , Yoichi Kaino
发明人： Fumihito Inukai , Seiichi Muroya , Yoichi Kaino
IPC分类号： G04F5/14 , G04F3/06 , G06F3/05 , G06F13/20
CPC分类号： G01P15/125 , G01C19/5607 , G01P2015/0828
摘要： A physical quantity detection circuit (12) is used for a physical quantity sensor (10) that outputs a sensor signal according to a physical quantity given externally. A sampling phase adjustment circuit (100) adjusts the phase of a sampling clock (CKa). An analog-to-digital converter circuit (104) converts the sensor signal (Ssnc) to a digital sensor signal (Dsnc) in synchronization with the sampling clock (CKsp) phase-adjusted by the sampling phase adjustment circuit. A detection circuit (107) detects the physical quantity based on the digital sensor signal (Dsnc) from the analog-to-digital converter circuit.
摘要翻译：物理量检测电路（12）用于根据外部给出的物理量输出传感器信号的物理量传感器（10）。采样相位调整电路（100）调整采样时钟（CKa）的相位。模数转换器电路（104）与由采样相位调整电路相位调制的采样时钟（CKsp）同步地将传感器信号（Ssnc）转换为数字传感器信号（Dsnc）。检测电路（107）根据来自模拟 - 数字转换器电路的数字传感器信号（Dsnc）检测物理量。

12. 发明授权

US07148829B2 Delta-sigma modulation circuit with gain control function 有权
标题翻译：具增益控制功能的Δ-Σ调制电路
公开(公告)号：US07148829B2
公开(公告)日：2006-12-12
申请号：US11240575
申请日：2005-10-03
申请人： Fumihito Inukai
发明人： Fumihito Inukai
IPC分类号： H03M1/62
CPC分类号： H03M3/492 , H03M3/486
摘要： A delta-sigma modulation circuit with a gain control function includes a variable gain amplifier, a control unit that controls the gain of the variable gain amplifier, a delta-sigma modulator that inputs an output from the variable gain amplifier, and a filter circuit that inputs an output from the delta-sigma modulator. The control unit that controls the gain of the variable gain amplifier gain controls the delta-sigma modulator. By this, the optimum dynamic range is obtained according to the setting level of the variable gain amplifier without causing the dynamic range to vary depending on the setting level of the variable gain amplifier.
摘要翻译：具有增益控制功能的Δ-Σ调制电路包括可变增益放大器，控制可变增益放大器的增益的控制单元，输入可变增益放大器的输出的Δ-Σ调制器和滤波电路，输入来自Δ-Σ调制器的输出。控制可变增益放大器增益增益的控制单元控制Δ-Σ调制器。由此，可根据可变增益放大器的设定电平获得最佳动态范围，而不会使动态范围根据可变增益放大器的设定电平而变化。

13. 发明申请

US20110179868A1 PHYSICAL QUANTITY SENSOR SYSTEM AND PHYSICAL QUANTITY SENSOR DEVICE 审中-公开
标题翻译：物理量传感器系统和物理量传感器装置
公开(公告)号：US20110179868A1
公开(公告)日：2011-07-28
申请号：US13085823
申请日：2011-04-13
申请人： Yoichi KAINO , Motonori Taniguchi , Fumihito Inukai
发明人： Yoichi KAINO , Motonori Taniguchi , Fumihito Inukai
IPC分类号： G01P15/097
CPC分类号： G01C19/5607 , G01C19/5614 , G01C19/5776 , H03M1/64
摘要： A physical quantity sensor system drives a physical quantity sensor and detects a physical quantity signal from a sensor signal. An analog-to-digital conversion circuit respectively converts a monitor signal and the sensor signal to a digital monitor signal and a digital sensor signal. A drive control circuit controls a drive signal according to the digital monitor signal. A phase adjustment circuit adjusts the phase difference between the digital monitor signal and the digital sensor signal. A detection circuit detects the physical quantity signal by multiplying the digital monitor signal by the digital sensor signal after the phase difference adjustment by the phase adjustment circuit.
摘要翻译：物理量传感器系统驱动物理量传感器并从传感器信号检测物理量信号。模拟 - 数字转换电路分别将监视信号和传感器信号转换为数字监视信号和数字传感器信号。驱动控制电路根据数字监视信号控制驱动信号。相位调整电路调整数字监视信号与数字传感器信号之间的相位差。检测电路通过在由相位调整电路进行相位差调整之后将数字监视信号乘以数字传感器信号来检测物理量信号。

14. 发明申请

US20060071835A1 Delta-sigma modulation circuit with gain control function 有权
公开(公告)号：US20060071835A1
公开(公告)日：2006-04-06
申请号：US11240575
申请日：2005-10-03
申请人： Fumihito Inukai
发明人： Fumihito Inukai
IPC分类号： H03M3/00
CPC分类号： H03M3/492 , H03M3/486
摘要： A delta-sigma modulation circuit with a gain control function includes a variable gain amplifier, a control unit that controls the gain of the variable gain amplifier, a delta-sigma modulator that inputs an output from the variable gain amplifier, and a filter circuit that inputs an output from the delta-sigma modulator. The control unit that controls the gain of the variable gain amplifier gain controls the delta-sigma modulator. By this, the optimum dynamic range is obtained according to the setting level of the variable gain amplifier without causing the dynamic range to vary depending on the setting level of the variable gain amplifier.

15. 发明申请

US20110285566A1 DIGITAL-TO-ANALOG CONVERTER AND DIGITAL-TO-ANALOG CONVERTING DEVICE 审中-公开
标题翻译：数字到模拟转换器和数字到模拟转换器件
公开(公告)号：US20110285566A1
公开(公告)日：2011-11-24
申请号：US13084222
申请日：2011-04-11
申请人： Yosuke GOTO , Fumihito Inukai
发明人： Yosuke GOTO , Fumihito Inukai
IPC分类号： H03M3/02 , H03M1/66
CPC分类号： H03M1/06 , H03M1/804 , H03M3/50
摘要： A D/A converter comprises a first switch unit for performing switching to provide connection and disconnection between one terminals of the plurality of sampling capacitive elements and the corresponding plurality of input terminals, and to provide connection and disconnection between the other terminals of the plurality of sampling capacitive elements and a reference voltage source for generating a reference voltage; a second switch unit for performing switching to provide connection and disconnection between the other terminals and an inverting input terminal of the operational amplifier, to provide connection and disconnection between one terminals of the sampling capacitive elements and to close and open an electric path through which a voltage according to a voltage of the sampling capacitive elements, is output to an output terminal of the operational amplifier, in accordance with the switching of the first switch unit; and a resistive element provided on the electric path.
摘要翻译： AD / A转换器包括第一开关单元，用于执行切换以提供多个采样电容元件的一个端子与相应的多个输入端子之间的连接和断开，并且提供多个采样的其它端子之间的连接和断开电容元件和用于产生参考电压的参考电压源; 第二开关单元，用于执行切换以提供其他端子与运算放大器的反相输入端子之间的连接和断开，以提供采样电容元件的一个端子之间的连接和断开，并且闭合并打开电通路，根据所述采样电容元件的电压的电压根据所述第一开关单元的切换输出到所述运算放大器的输出端子; 以及设置在电路上的电阻元件。

16. 发明申请

US20100237909A1 PHYSICAL QUANTITY DETECTION CIRCUIT AND PHYSICAL QUANTITY SENSOR DEVICE 有权
标题翻译：物理量检测电路和物理量传感器器件
公开(公告)号：US20100237909A1
公开(公告)日：2010-09-23
申请号：US12599779
申请日：2009-01-27
申请人： Fumihito Inukai , Yoichi Kaino
发明人： Fumihito Inukai , Yoichi Kaino
IPC分类号： H03K3/00 , G06G7/16
CPC分类号： G01C19/5607 , G01P15/125 , G01P2015/0828
摘要： A physical quantity detection circuit (12) is used for a physical quantity sensor (10) that outputs a sensor signal according to a physical quantity given externally. In the physical quantity detection circuit (12), an analog-to-digital converter (104) converts an analog sensor signal (Ssnc) to a digital sensor signal (Dsnc). A digital filter (100) attenuates a frequency component of the digital sensor signal (Dsnc) that is higher than a predetermined cutoff frequency. A multiplier (106) multiplies a digital sensor signal (Dps) having passed the digital filter (100) by a digital detection signal (Ddet) to detect a digital physical quantity signal (Dphy).
摘要翻译：物理量检测电路（12）用于根据外部给出的物理量输出传感器信号的物理量传感器（10）。在物理量检测电路（12）中，模拟数字转换器（104）将模拟传感器信号（Ssnc）转换为数字传感器信号（Dsnc）。数字滤波器（100）衰减高于预定截止频率的数字传感器信号（Dsnc）的频率分量。乘法器（106）将通过数字滤波器（100）的数字传感器信号（Dps）乘以数字检测信号（Ddet）以检测数字物理量信号（Dphy）。

17. 发明授权

US08093926B2 Physical quantity detection circuit and physical quantity sensor device 有权
标题翻译：物理量检测电路和物理量传感器装置
公开(公告)号：US08093926B2
公开(公告)日：2012-01-10
申请号：US12599779
申请日：2009-01-27
申请人： Fumihito Inukai , Yoichi Kaino
发明人： Fumihito Inukai , Yoichi Kaino
IPC分类号： H03K3/00
CPC分类号： G01C19/5607 , G01P15/125 , G01P2015/0828
摘要： A physical quantity detection circuit (12) is used for a physical quantity sensor (10) that outputs a sensor signal according to a physical quantity given externally. In the physical quantity detection circuit (12), an analog-to-digital converter (104) converts an analog sensor signal (Ssnc) to a digital sensor signal (Dsnc). A digital filter (100) attenuates a frequency component of the digital sensor signal (Dsnc) that is higher than a predetermined cutoff frequency. A multiplier (106) multiplies a digital sensor signal (Dps) having passed the digital filter (100) by a digital detection signal (Ddet) to detect a digital physical quantity signal (Dphy).
摘要翻译：物理量检测电路（12）用于根据外部给出的物理量输出传感器信号的物理量传感器（10）。在物理量检测电路（12）中，模拟数字转换器（104）将模拟传感器信号（Ssnc）转换为数字传感器信号（Dsnc）。数字滤波器（100）衰减高于预定截止频率的数字传感器信号（Dsnc）的频率分量。乘法器（106）将通过数字滤波器（100）的数字传感器信号（Dps）乘以数字检测信号（Ddet）以检测数字物理量信号（Dphy）。

18. 发明申请

US20110179872A1 DRIVE CIRCUIT AND PHYSICAL QUANTITY SENSOR DEVICE 审中-公开
标题翻译：驱动电路和物理量传感器器件
公开(公告)号：US20110179872A1
公开(公告)日：2011-07-28
申请号：US13052855
申请日：2011-03-21
申请人： Yoichi Kaino , Motonori Taniguchi , Fumihito Inukai
发明人： Yoichi Kaino , Motonori Taniguchi , Fumihito Inukai
IPC分类号： G01H17/00
CPC分类号： G01C19/5614
摘要： An amplitude detection circuit detects the amplitude value of a monitor signal responsive to self-excited vibration of a physical quantity sensor. A waveform shaping circuit converts the monitor signal to a pulse signal. A pulse amplitude modulation circuit adjusts the amplitude of the pulse signal according to the amplitude value obtained by the amplitude detection circuit and outputs the result as a drive signal for control of the self-excited vibration of the physical quantity sensor.
摘要翻译：振幅检测电路响应于物理量传感器的自激振动来检测监视信号的振幅值。波形整形电路将监视信号转换成脉冲信号。脉冲幅度调制电路根据由振幅检测电路获得的振幅值来调节脉冲信号的幅度，并输出该结果作为用于物理量传感器的自激振动的控制的驱动信号。

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