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1. 发明申请

US20100057384A1 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：US20100057384A1
公开(公告)日：2010-03-04
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： G06F19/00 , G01N29/00
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。

2. 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。

3. 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）。

4. 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）。

5. 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。

6. 发明授权

US08013647B2 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：US08013647B2
公开(公告)日：2011-09-06
申请号：US12621837
申请日：2009-11-19
申请人： Fumihito Inukai , Seiichi Muroya , Yoichi Kaino
发明人： Fumihito Inukai , Seiichi Muroya , Yoichi Kaino
IPC分类号： H03L7/00
CPC分类号： G01C19/5607 , G01P15/125
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 phase adjustment circuit (100) receives a reference clock (CKref) and operates in synchronization with an operation clock (CKa), to delay a transition edge of the reference clock by a predetermined number of pulses of the operation clock. A detection circuit (104) detects a physical quantity signal from the sensor signal (Ssnc) using a transition edge of a clock (SSS) from the phase adjustment circuit (100) as the reference.
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）。相位调整电路（100）接收参考时钟（CKref）并与操作时钟（CKa）同步地操作，以将参考时钟的转换边缘延迟预定数量的操作时钟的脉冲。检测电路（104）使用来自相位调整电路（100）的时钟（SSS）的转移边缘作为基准，从传感器信号（Ssnc）检测物理量信号。

7. 发明申请

US20100214015A1 DETECTION CIRCUIT AND PHYSICAL QUANTITY SENSOR DEVICE 审中-公开
标题翻译：检测电路和物理量传感器器件
公开(公告)号：US20100214015A1
公开(公告)日：2010-08-26
申请号：US12609766
申请日：2009-10-30
申请人： Yoshitsugu Takasawa , Motonori Taniguchi , Yoichi Kaino
发明人： Yoshitsugu Takasawa , Motonori Taniguchi , Yoichi Kaino
IPC分类号： G06G7/12
CPC分类号： G06G7/186
摘要： A switched capacitor has a differential amplifier and a sampling capacitance and a feedback capacitance at least one of which has a variable capacitance value, and is switchable between a first drive mode of amplifying an input signal with a positive gain responsive to the capacitance ratio of the sampling capacitance to the feedback capacitance and a second drive mode of amplifying the input signal with a negative gain responsive to the capacitance ratio. A control circuit changes the capacitance ratio, and also changes the drive mode of the switched capacitor, at predetermined timing.
摘要翻译：开关电容器具有差分放大器和采样电容以及至少其中一个具有可变电容值的反馈电容，并且可以在响应于电容比的正增益的正增益放大输入信号的第一驱动模式之间切换对反馈电容进行采样电容，以及响应于电容比，以负增益放大输入信号的第二驱动模式。控制电路在预定的定时改变电容比，并改变开关电容器的驱动模式。

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