公开(公告)号：US20070041135A1

公开(公告)日：2007-02-22

申请号：US11500303

申请日：2006-08-08

申请人： Hajime Ito ,  Shunji Mase ,  Takao Tsuruhara

发明人： Hajime Ito ,  Shunji Mase ,  Takao Tsuruhara

IPC分类号： H02H3/00

CPC分类号： G01D3/08 ,  G01C19/5726 ,  G01C19/5776 ,  G01P21/00

摘要： A sensor circuit includes an AC component pickup circuit and first and second adder circuits or first and second high-pass filters, and specifies a range of normal voltages by an upper-limit voltage formed by adding an upper-limit threshold value to the AC component in the input voltage and by a lower-limit voltage formed by adding a lower-limit threshold value to the AC component in the input voltage. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages.

摘要翻译： 传感器电路包括AC分量拾取电路和第一和第二加法器电路或第一和第二高通滤波器，并且通过将上限阈值与AC分量相加形成的上限电压来指定正常电压的范围 在输入电压和通过向输入电压中的AC分量增加下限阈值而形成的下限电压。 通过判断反相放大器电路的输出电压是否处于正常电压的范围来检测异常偏移电压。

公开(公告)号：US07292021B2

公开(公告)日：2007-11-06

申请号：US11245453

申请日：2005-10-07

申请人： Takao Tsuruhara ,  Hajime Ito ,  Shunji Mase

发明人： Takao Tsuruhara ,  Hajime Ito ,  Shunji Mase

IPC分类号： G01R13/14 ,  G01P3/44 ,  G01P9/00 ,  G01P15/08

CPC分类号： G01C19/5649

摘要： In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.

摘要翻译： 在检测振动检测电路等电路的振荡信号的异常状态的异常检测器中，将具有AC，DC成分的振荡信号转换为相反极性的DC振幅的一对第一和第二信号 或反相交变振幅。 组合第一和第二信号以消除振荡信号的AC分量以检测DC分量。 然后将DC分量与决策范围的上限和下限阈值进行比较，以在DC分量超出决策范围时产生报警。 在一个实施例中，通过以间隔检测振荡信号的正和负峰值来产生第一和第二信号。 在第二实施例中，第一信号是通过对作为AC分量的复制品的振荡信号进行高通滤波而产生的，第二信号是振荡信号本身。

公开(公告)号：US20060077013A1

公开(公告)日：2006-04-13

申请号：US11245453

申请日：2005-10-07

申请人： Takao Tsuruhara ,  Hajime Ito ,  Shunji Mase

发明人： Takao Tsuruhara ,  Hajime Ito ,  Shunji Mase

IPC分类号： H03B1/00

CPC分类号： G01C19/5649

摘要： In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.

摘要翻译： 在检测振动检测电路等电路的振荡信号的异常状态的异常检测器中，将具有AC，DC成分的振荡信号转换为相反极性的DC振幅的一对第一和第二信号 或反相交变振幅。 组合第一和第二信号以消除振荡信号的AC分量以检测DC分量。 然后将DC分量与决策范围的上限和下限阈值进行比较，以在DC分量超出决策范围时产生报警。 在一个实施例中，通过以间隔检测振荡信号的正和负峰值来产生第一和第二信号。 在第二实施例中，第一信号是通过对作为AC分量的复制品的振荡信号进行高通滤波而产生的，第二信号是振荡信号本身。

公开(公告)号：US07466119B2

公开(公告)日：2008-12-16

申请号：US11500303

申请日：2006-08-08

申请人： Hajime Ito ,  Shunji Mase ,  Takao Tsuruhara

发明人： Hajime Ito ,  Shunji Mase ,  Takao Tsuruhara

IPC分类号： G01D1/14 ,  G01R27/08

CPC分类号： G01D3/08 ,  G01C19/5726 ,  G01C19/5776 ,  G01P21/00

摘要： A sensor circuit includes an AC component pickup circuit and first and second adder circuits or first and second high-pass filters, and specifies a range of normal voltages by an upper-limit voltage formed by adding an upper-limit threshold value to the AC component in the input voltage and by a lower-limit voltage formed by adding a lower-limit threshold value to the AC component in the input voltage. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages.

摘要翻译： 传感器电路包括AC分量拾取电路和第一和第二加法器电路或第一和第二高通滤波器，并且通过将上限阈值与AC分量相加形成的上限电压来指定正常电压的范围 在输入电压和通过向输入电压中的AC分量增加下限阈值而形成的下限电压。 通过判断反相放大器电路的输出电压是否处于正常电压的范围来检测异常偏移电压。

公开(公告)号：US07197930B2

公开(公告)日：2007-04-03

申请号：US11291085

申请日：2005-12-01

申请人： Mikio Sugiki ,  Yuji Kutsuna ,  Hajime Ito ,  Takao Tsuruhara

发明人： Mikio Sugiki ,  Yuji Kutsuna ,  Hajime Ito ,  Takao Tsuruhara

IPC分类号： G01P15/00 ,  G01P9/04

CPC分类号： G01C19/56

摘要： The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.

摘要翻译： 陀螺传感器使用时钟信号作为定时信号或同步信号，用于读取存储在内置存储器中的各种数据用于其偏航速率感测操作。 陀螺仪传感器被配置为将作为这样的时钟信号的自激振荡信号用作陀螺仪传感器的振动器作为振动器驱动信号。

公开(公告)号：US20060087370A1

公开(公告)日：2006-04-27

申请号：US11253802

申请日：2005-10-20

申请人： Takao Tsuruhara ,  Hajime Ito

发明人： Takao Tsuruhara ,  Hajime Ito

IPC分类号： H03F1/36

CPC分类号： H03F1/34 ,  H03F3/45475 ,  H03F3/70 ,  H03F2203/45522

摘要： In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting terminal and the output terminal. A resistance adjusting circuit is provided to be electrically connected to the adjustable feedback resistor element. The resistance adjusting circuit adjusts the resistance of the adjustable feedback resistor element to a first resistance during a first predetermined period after power-on. The resistance adjusting circuit also adjusts the resistance of the adjustable feedback resistor element to a second resistance after the first predetermined period has elapsed. The second resistance is higher than the first resistance.

摘要翻译： 在电荷放大器中，提供运算放大器。 运算放大器具有反相输入端子，非反相输入端子和输出端子。 提供可调反馈电阻元件连接在反相端子和输出端子之间。 提供电阻调节电路以电连接到可调节反馈电阻器元件。 电阻调节电路在上电之后的第一预定时段期间将可调节反馈电阻元件的电阻调整为第一电阻。 电阻调节电路在经过第一预定周期之后，也将可调反馈电阻元件的电阻调整到第二电阻。 第二阻力高于第一阻力。

公开(公告)号：US20060117850A1

公开(公告)日：2006-06-08

申请号：US11291085

申请日：2005-12-01

申请人： Mikio Sugiki ,  Yuji Kutsuna ,  Hajime Ito ,  Takao Tsuruhara

发明人： Mikio Sugiki ,  Yuji Kutsuna ,  Hajime Ito ,  Takao Tsuruhara

IPC分类号： G01P15/08

CPC分类号： G01C19/56

摘要： The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.

摘要翻译： 陀螺传感器使用时钟信号作为定时信号或同步信号，用于读取存储在内置存储器中的各种数据用于其偏航速率感测操作。 陀螺仪传感器被配置为将作为这样的时钟信号的自激振荡信号用作陀螺仪传感器的振动器作为振动器驱动信号。

公开(公告)号：US07233524B2

公开(公告)日：2007-06-19

申请号：US11178301

申请日：2005-07-12

申请人： Takao Tsuruhara

发明人： Takao Tsuruhara

IPC分类号： G11C11/34 ,  G11C16/04

CPC分类号： G11C16/26

摘要： A compact sense amplifier circuit for amplifying reading signal of an EPROM includes a bit line connected to cells of the EPROM and a transistor circuit for connecting a DC power source to the bit line. The transistor circuit includes a read circuit, a write circuit, a first path for passing current when a read signal for reading one of the cells that is not written is applied to the read circuit and a second path for passing current when a read signal for reading one of the cells that is written is applied to the read circuit. The first path and the second path are arranged to pass the same amount of current, thereby reducing sensor noises.

摘要翻译： 用于放大EPROM的读取信号的紧凑型读出放大器电路包括连接到EPROM的单元的位线和用于将直流电源连接到位线的晶体管电路。 晶体管电路包括读取电路，写入电路，当用于读取未被写入的一个单元的读取信号被施加到读取电路时，用于使电流通过的第一路径和用于当读取电路的读取信号 读取写入的单元之一被应用于读取电路。 第一路径和第二路径被布置成通过相同量的电流，从而减少传感器噪声。

公开(公告)号：US20060062065A1

公开(公告)日：2006-03-23

申请号：US11178301

申请日：2005-07-12

申请人： Takao Tsuruhara

发明人： Takao Tsuruhara

IPC分类号： G11C7/02

CPC分类号： G11C16/26

摘要： A compact sense amplifier circuit for amplifying reading signal of an EPROM includes a bit line connected to cells of the EPROM and a transistor circuit for connecting a DC power source to the bit line. The transistor circuit includes a read circuit, a write circuit, a first path for passing current when a read signal for reading one of the cells that is not written is applied to the read circuit and a second path for passing current when a read signal for reading one of the cells that is written is applied to the read circuit. The first path and the second path are arranged to pass the same amount of current, thereby reducing sensor noises.

摘要翻译： 用于放大EPROM的读取信号的紧凑型读出放大器电路包括连接到EPROM的单元的位线和用于将直流电源连接到位线的晶体管电路。 晶体管电路包括读取电路，写入电路，当用于读取未被写入的一个单元的读取信号被施加到读取电路时，用于使电流通过的第一路径和用于当读取电路的读取信号 读取写入的单元之一被应用于读取电路。 第一路径和第二路径被布置成通过相同量的电流，从而减少传感器噪声。

公开(公告)号：US07291825B2

公开(公告)日：2007-11-06

申请号：US11348260

申请日：2006-02-07

申请人： Takao Tsuruhara

发明人： Takao Tsuruhara

IPC分类号： H01J40/14 ,  G01P15/14

CPC分类号： G01P15/125 ,  G01C19/56

摘要： The capacitance type physical quantity sensor has a sensing part including a capacitor element generating a capacitance signal representing a magnitude of a physical quantity to be sensed, and a sensor circuit including a charge amplifier converting the capacitance signal into a voltage signal. The charge amplifier includes an operational amplifier applied with the capacitance signal at an inverting input terminal thereof and applied with a reference voltage at a non-inverting input terminal thereof, a first capacitor connected between the inverting input terminal and an output terminal of the operational amplifier, a feedback resistor connected in parallel to the first capacitor, and a switch connected in parallel to the first capacitor and configured to be closed to make a short circuit between the inverting input terminal and the output terminal upon receiving a refresh signal supplied from outside.

摘要翻译： 电容型物理量传感器具有感应部，该感测部包括产生表示待感测物理量的电容信号的电容器元件，以及包含将电容信号变换为电压信号的电荷放大器的传感器电路。 电荷放大器包括在其反相输入端施加电容信号的运算放大器，并在其非反相输入端施加参考电压，第一电容器连接在运算放大器的反相输入端和输出端之间 与第一电容器并联连接的反馈电阻器，以及并联连接到第一电容器并且被配置为闭合的开关，以在接收到从外部提供的刷新信号时在反相输入端子和输出端子之间产生短路。