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公开(公告)号：US09435647B2
公开(公告)日：2016-09-06
申请号：US13498210
申请日：2010-10-07
IPC分类号： G01C19/00 , G01C19/5776
CPC分类号： G01C19/5776
摘要： An angular velocity sensor including a vibration body having a sensor electrode, a driving electrode, and a monitor electrode. The monitor electrode generates a signal according to vibration of the vibration body. The sensor circuit outputs a signal representing an angular velocity applied to the vibration body. The amplitude determination circuit measures amplitude of vibration of the vibration body. A PLL circuit includes a constant voltage source for generating a constant voltage, a timing switching unit for outputting a voltage by switching selectively between the constant voltage and a voltage corresponding to the monitor signal, and a voltage-controlled oscillator for outputting an oscillation signal having a frequency corresponding to the voltage output from the timing switching unit. When the amplitude measured is smaller than a predetermined value, the timing switching unit outputs the constant voltage output from the constant voltage source and outputs a start-up mode signal.
摘要翻译： 一种角速度传感器，包括具有传感器电极的振动体，驱动电极和监视电极。 显示器电极根据振动体的振动产生信号。 传感器电路输出表示施加到振动体的角速度的信号。 振幅确定电路测量振动体的振动的振幅。 PLL电路包括用于产生恒定电压的恒压源，定时切换单元，用于通过选择性地在恒定电压和对应于监视信号的电压之间切换来输出电压;以及压控振荡器，用于输出具有 与从定时切换单元输出的电压对应的频率。 当测量的振幅小于预定值时，定时切换单元输出从恒定电压源输出的恒定电压并输出启动模式信号。
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公开(公告)号：US20120191398A1
公开(公告)日：2012-07-26
申请号：US13498210
申请日：2010-10-07
CPC分类号： G01C19/5776
摘要： An angular velocity sensor includes a vibration body having a sensor electrode, a driving electrode, and a monitor electrode. The monitor electrode generates a signal according to vibration of the vibration body. The sensor circuit outputs a signal representing an angular velocity applied to the vibration body. The amplitude determination circuit measures amplitude of vibration of the vibration body. A PLL circuit includes a constant voltage source for generating a constant voltage, a timing switching unit for outputting a voltage by switching selectively between the constant voltage and a voltage corresponding to the monitor signal, and a voltage-controlled oscillator for outputting an oscillation signal having a frequency corresponding to the voltage output from the timing switching unit. When the amplitude measured by the amplitude determination circuit is smaller than a predetermined value, the timing switching unit outputs, to the voltage-controlled oscillator, the constant voltage output from the constant voltage source and outputs a start-up mode signal. This angular velocity sensor has a stable output characteristic.
摘要翻译： 角速度传感器包括具有传感器电极，驱动电极和监视电极的振动体。 显示器电极根据振动体的振动产生信号。 传感器电路输出表示施加到振动体的角速度的信号。 振幅确定电路测量振动体的振动的振幅。 PLL电路包括用于产生恒定电压的恒压源，定时切换单元，用于通过选择性地在恒定电压和对应于监视信号的电压之间切换来输出电压;以及压控振荡器，用于输出具有 与从定时切换单元输出的电压对应的频率。 当由振幅确定电路测量的幅度小于预定值时，定时切换单元将从恒压源输出的恒定电压输出到压控振荡器，并输出启动模式信号。 该角速度传感器具有稳定的输出特性。
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3.发明申请SIGMA-DELTA TYPE ANALOG-TO-DIGITAL (AD) CONVERTER AND ANGULAR VELOCITY SENSOR USING SAME 有权SIGMA-DELTA型模拟数字（AD）转换器和角速度传感器公开(公告)号：US20100013688A1
公开(公告)日：2010-01-21
申请号：US12523769
申请日：2008-01-25
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
IPC分类号： H03M3/00
CPC分类号： G01C19/56 , G01C19/5649 , H03M3/326 , H03M3/368 , H03M3/43 , H03M3/456 , H03M3/474 , H03M3/486 , H03M3/49
摘要： An angular velocity sensor with a stable output characteristic using a sigma-delta type analog-to-digital converter comprising an integrator unit for integrating electric charges output from an input switching device and a digital-to-analog converter unit and holding at least two integrated values, a comparator unit for comparing at least the two integrated values output from the integrator unit with a predetermined value, and an arithmetic operation unit for operating an output signal of the comparator unit, the arithmetic operation unit provided with a differential operation unit for computing a difference between at least two comparison signals output from comparator unit.
摘要翻译： 一种使用Σ-Δ型模数转换器具有稳定输出特性的角速度传感器，包括用于积分从输入开关装置输出的电荷和数 - 模转换器单元的积分器单元，并且保持至少两个集成 值，用于将至少从积分器单元输出的两个积分值与预定值进行比较的比较器单元，以及用于操作比较器单元的输出信号的算术运算单元，算术运算单元设置有运算单元 从比较器单元输出的至少两个比较信号之间的差异。
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公开(公告)号：US08925383B2
公开(公告)日：2015-01-06
申请号：US13384694
申请日：2010-07-20
IPC分类号： G01C19/56 , G01C19/5614
CPC分类号： G01C19/5614
摘要： An angular velocity sensor includes a vibration body, first and second sensor electrodes generating an electric charge responsive to an angular velocity applied to the vibration body, first and D/A converters each outputting at least two levels of an electric charge, first and second integrator circuits integrating the electric charge generated by the first and second sensor electrodes and the electric charges output from the first and second D/A converters, respectively, a comparator unit comparing output signals from the first and second integrator circuits, first and second D/A switching units switching levels of the output signals from the first and second D/A converters according to a comparison result of the comparator unit, a first disconnection detecting switch connected between the first sensor electrode and the first integrator circuit, a first voltage source for injecting an electric charge into a point between the first sensor electrode and the first integrator circuit via the first disconnection detecting switch, a second disconnection detecting switch connected between the second sensor electrode and the second integrator circuit, and a second voltage source for injecting an electric charge into a point between the second sensor electrode and the second integrator circuit via the second disconnection detecting switch. This angular velocity sensor has a high reliability and performs stable operation even if ambient environment changes.
摘要翻译： 角速度传感器包括：振动体，响应于施加到振动体的角速度产生电荷的第一和第二传感器电极，第一和D / A转换器，每个转换器输出至少两个电荷的电平，第一和第二积分器 将由第一和第二传感器电极产生的电荷和从第一和第二D / A转换器输出的电荷分别积分的电路，比较来自第一和第二积分器电路的输出信号的比较器单元，第一和第二D / A 开关单元根据比较器单元的比较结果，从第一和第二D / A转换器输出信号的开关电平，连接在第一传感器电极和第一积分器电路之间的第一断开检测开关，用于注入的第一电压源 电荷进入第一传感器电极和第一积分器电路通路之间的点 第一断开检测开关，连接在第二传感器电极和第二积分器电路之间的第二断开检测开关，以及用于经由第二断开将电荷注入到第二传感器电极和第二积分器电路之间的点的第二电压源 检测开关。 该角速度传感器具有高可靠性，并且即使环境变化也能够稳定地操作。
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5.发明授权Inertial force sensor including a sense element, a drive circuit, a sigma-delta modulator and a signal processing circuit 有权包括感测元件，驱动电路，Σ-Δ调制器和信号处理电路的惯性力传感器公开(公告)号：US07891245B2
公开(公告)日：2011-02-22
申请号：US11942828
申请日：2007-11-20
申请人： Hideyuki Murakami , Takashi Kawai
发明人： Hideyuki Murakami , Takashi Kawai
CPC分类号： G01P15/097 , G01C19/5607
摘要： The present invention particularly relates to an inertial force sensor used in various electronic equipment, for example, used for altitude control, navigation, or the like, of a mobile body such as an aircraft, an automobile, a robot, a watercraft and a vehicle in which the detection accuracy is enhanced. Therefore, a sense circuit constituting the inertial force sensor includes a sigma-delta modulator converting a sense signal output from a sense electrode into a one-bit digital signal, and a signal processing circuit (i) comparing a monitor signal output from a monitor electrode with predetermined reference amplitude information, (ii) carrying out operation processing of the one-bit digital signal based on this comparison information, and (iii) adjusting an output level of the output signal.
摘要翻译： 本发明特别涉及一种惯性力传感器，其用于诸如飞机，汽车，机器人，船舶和车辆等移动体的用于高空控制，导航等的各种电子设备中。 其中提高了检测精度。 因此，构成惯性力传感器的感测电路包括将从感测电极输出的感测信号转换为1位数字信号的Σ-Δ调制器，以及将从监视电极输出的监视信号进行比较的信号处理电路 具有预定的参考幅度信息，（ii）基于该比较信息进行一位数字信号的运算处理，以及（iii）调整输出信号的输出电平。
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公开(公告)号：US08451066B2
公开(公告)日：2013-05-28
申请号：US12680935
申请日：2008-11-07
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
IPC分类号： H03L7/085
摘要： A PLL circuit is provided with an AD converter, a DA converter to which output from the AD converter is inputted, a filter circuit filtering an output signal of the DA converter, a voltage control oscillator outputting a signal of a different frequency in accordance with an output signal from the filter circuit and a frequency divider dividing a signal which the voltage control oscillator outputs. The AD converter operates by a timing signal from the voltage control oscillator and the DA converter outputs an analog signal corresponding to a value which the AD converter outputs by the timing signal outputted from the frequency divider.
摘要翻译： PLL电路设置有AD转换器，AD转换器输入AD转换器的DA转换器，对DA转换器的输出信号进行滤波的滤波器电路，输出不同频率的信号的电压控制振荡器，根据 来自滤波电路的输出信号和分压电压控制振荡器输出的信号的分频器。 AD转换器通过来自压控振荡器的定时信号进行工作，DA转换器通过由分频器输出的定时信号输出对应于AD转换器输出的值的模拟信号。
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公开(公告)号：US20120111111A1
公开(公告)日：2012-05-10
申请号：US13384694
申请日：2010-07-20
IPC分类号： G01C19/56
CPC分类号： G01C19/5614
摘要： An angular velocity sensor includes a vibration, first and second sensor electrodes generating an electric charge responsive to an angular velocity applied to the vibration body, first and D/A converters each outputting at least two levels of an electric charge, first and second integrator circuits integrating the electric charge generated by the first and second sensor electrodes and the electric charges output from the first and second D/A converters, respectively, a comparator unit comparing output signals from the first and second integrator circuits, first and second D/A switching units switching levels of the output signals from the first and second D/A converters according to a comparison result of the comparator unit, a first disconnection detecting switch connected between the first sensor electrode and the first integrator circuit, a first voltage source for injecting an electric charge into a point between the first sensor electrode and the first integrator circuit via the first disconnection detecting switch, a second disconnection detecting switch connected between the second sensor electrode and the second integrator circuit, and a second voltage source for injecting an electric charge into a point between the second sensor electrode and the second integrator circuit via the second disconnection detecting switch. This angular velocity sensor has a high reliability and performs stable operation even if ambient environment changes.
摘要翻译： 角速度传感器包括响应于施加到振动体的角速度产生电荷的振动，第一和第二传感器电极，第一和D / A转换器，每个转换器输出至少两个电平的电荷，第一和第二积分器电路 分别对由第一和第二传感器电极产生的电荷和从第一和第二D / A转换器输出的电荷进行积分，比较器单元比较来自第一和第二积分器电路的输出信号，第一和第二D / A转换 单元根据比较器单元的比较结果从第一和第二D / A转换器输出信号的开关电平，连接在第一传感器电极和第一积分器电路之间的第一断开检测开关，用于注入第一电压源的第一电压源 通过f将电荷充入第一传感器电极和第一积分器电路之间的点 第一断开检测开关，连接在第二传感器电极和第二积分器电路之间的第二断开检测开关，以及用于经由第二断开检测将电荷注入到第二传感器电极和第二积分器电路之间的点的第二电压源 开关。 该角速度传感器具有高可靠性，并且即使环境变化也能够稳定地操作。
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8.发明授权Sigma-delta type analog-to-digital (AD) converter and angular velocity sensor using same 有权Sigma-delta型模拟（AD）转换器和使用它的角速度传感器公开(公告)号：US07898448B2
公开(公告)日：2011-03-01
申请号：US12523769
申请日：2008-01-25
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
IPC分类号： H03M3/00
CPC分类号： G01C19/56 , G01C19/5649 , H03M3/326 , H03M3/368 , H03M3/43 , H03M3/456 , H03M3/474 , H03M3/486 , H03M3/49
摘要： An angular velocity sensor has a stable output characteristic using a sigma-delta type analog-to-digital converter. The sigma-delta type analog-to-digital converter includes an integrator unit for integrating electric charges output from an input switching device and a digital-to-analog converter unit, and holding at least two integrated values, a comparator unit for comparing at least the two integrated values output from the integrator unit with a predetermined value. The sigma-delta-type analog-to-digital converter also includes an arithmetic operation unit for operating an output signal of the comparator unit, the arithmetic operation unit being provided with a differential operation unit for computing a difference between at least two comparison signals output from comparator unit.
摘要翻译： 角速度传感器使用Σ-Δ型模数转换器具有稳定的输出特性。 Σ-Δ型模数转换器包括用于对从输入开关装置输出的电荷和数模转换器单元进行积分并保持至少两个积分值的积分器单元，比较器单元，用于至少比较 从积分器单元输出的具有预定值的两个积分值。 Σ-Δ型模数转换器还包括用于操作比较器单元的输出信号的算术运算单元，算术运算单元设置有差分运算单元，用于计算至少两个比较信号输出 从比较单元。
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公开(公告)号：US20100206069A1
公开(公告)日：2010-08-19
申请号：US12680935
申请日：2008-11-07
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
摘要： A PLL circuit is provided with an AD converter, a DA converter to which output from the AD converter is inputted, a filter circuit filtering an output signal of the DA converter, a voltage control oscillator outputting a signal of a different frequency in accordance with an output signal from the filter circuit and a frequency divider dividing a signal which the voltage control oscillator outputs. The AD converter operates by a timing signal from the voltage control oscillator and the DA converter outputs an analog signal corresponding to a value which the AD converter outputs by the timing signal outputted from the frequency divider.
摘要翻译： PLL电路设置有AD转换器，AD转换器输入AD转换器的DA转换器，对DA转换器的输出信号进行滤波的滤波器电路，输出不同频率的信号的电压控制振荡器，根据 来自滤波电路的输出信号和分压电压控制振荡器输出的信号的分频器。 AD转换器通过来自压控振荡器的定时信号进行工作，DA转换器通过由分频器输出的定时信号输出对应于AD转换器输出的值的模拟信号。
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公开(公告)号：US08851480B2
公开(公告)日：2014-10-07
申请号：US13387322
申请日：2010-05-11
CPC分类号： F16J15/3228 , F16J15/3268
摘要： A lip type seal has a cartridge fitted to an inner periphery of a shaft hole, a first lip seal member, a case, a resin second lip seal member, a backup ring and an adapter, a protrusion section in a partial portion on a circumference is provided in a first flange section of the case to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the case and coming off to an inner side in a radial direction, and a projecting section in a partial portion on a circumference is provided in a flange section of the backup ring to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the backup ring and coming off to the inner side in the radial direction.
摘要翻译： 唇形密封件具有安装在轴孔的内周的盒，第一唇密封构件，壳体，树脂第二唇密封构件，支撑环和适配器，在圆周上的部分部分中的突出部 设置在所述壳体的第一凸缘部分中以与所述第二唇形密封构件接合，由此所述第二唇形密封构件被防止相对于所述壳体旋转并且在径向方向上离开到内侧，并且突出部分 在圆环的局部部分设置在支撑环的凸缘部分中以与第二唇形密封构件接合，从而防止第二唇形密封构件相对于支撑环旋转并且向内侧流动 径向。
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