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    • 41. 发明授权
    • Combined sensor
    • 组合传感器
    • US08061203B2
    • 2011-11-22
    • US12375109
    • 2007-08-09
    • Hiroyuki AizawaSatoshi Ohuchi
    • Hiroyuki AizawaSatoshi Ohuchi
    • G01C23/00G01C19/56
    • G01C19/5719G01P15/0922G01P15/123G01P15/18G01P2015/0842
    • A combined detection element (6) of the present invention includes an acceleration detection element (2) and an angular velocity detection element (4) stacked on the acceleration detection element (2) in such a manner as to avoid contacting with the weight parts (12) of the acceleration detection element (2). The angular velocity detection element (4) includes a recess (26) in a surface thereof facing the weight parts (12) of the acceleration detection element (2) so as to avoid contacting with the weight parts (12). At least part of the recess (26) has a depth not exceeding the vertical range of motion of weight parts (12), thereby suppressing the upward movement of weight parts (12).
    • 本发明的组合检测元件(6)包括加速度检测元件(2)和层叠在加速度检测元件(2)上的角速度检测元件(4),以避免与重量部件 (2)的加速度检测元件(12)。 角速度检测元件(4)包括在面对加速度检测元件(2)的重量部分(12)的表面中的凹部(26),以避免与重量部件(12)接触。 凹部(26)的至少一部分的深度不超过重量部件(12)的垂直运动范围,从而抑制重量部件(12)的向上运动。
    • 42. 发明授权
    • Interface circuit
    • 接口电路
    • US08040144B2
    • 2011-10-18
    • US12078291
    • 2008-03-28
    • Hiroyuki Aizawa
    • Hiroyuki Aizawa
    • G01R27/08H03K5/22H04B17/00
    • H03K19/0185
    • An interface circuit includes a reference voltage generation circuit to generate a reference voltage, a differential voltage signal generation circuit to convert send data input in sending data into a pair of differential voltage signals and output the pair of differential voltage signals based on the reference voltage generated by the reference voltage generation circuit, a receiver to convert a pair of differential voltage signals input in receiving data and output received data, and a receiver test circuit to perform a sensitivity test of the receiver, the receiver test circuit having a resistance circuit to generate a pair of differential voltage signals having a potential difference being necessary for the sensitivity test of the receiver.
    • 接口电路包括用于产生参考电压的基准电压产生电路,将发送数据中输入的发送数据转换为一对差分电压信号的差分电压信号发生电路,并基于产生的基准电压输出该对差分电压信号 通过参考电压产生电路,接收器,用于转换在接收数据中输入的一对差分电压信号并输出​​接收数据,以及接收机测试电路,以对接收机进行灵敏度测试,接收机测试电路具有电阻电路以产生 具有对接收机的灵敏度测试所必需的电位差的一对差分电压信号。
    • 47. 发明授权
    • Angular velocity sensor and its designing method
    • 角速度传感器及其设计方法
    • US07337667B2
    • 2008-03-04
    • US10542933
    • 2005-02-01
    • Satoshi OhuchiHiroyuki Aizawa
    • Satoshi OhuchiHiroyuki Aizawa
    • G01P9/04H01L41/08
    • G01C19/5607
    • An angular velocity sensor includes a tuning fork vibrator, a drive unit provided on the tuning folk vibrator, and a detection unit for detecting an amount of deflection of the tuning folk vibrator. The tuning fork vibrator includes a first vibrating arm having a first end and a second end and having a fundamental vibration frequency, a second vibrating arm having a first end and a second end and having the fundamental vibration frequency, and a coupling portion for coupling the first end of the first vibrating arm to the first end of the second vibrating arm. The drive unit is provided on the first vibrating arm and causes the first vibrating arm to vibrate. The drive unit has a driving resistance. The detection unit is provided on one of the first vibrating arm and the second vibrating arm, and detects an amount of deflection of the one of the first vibrating arm and the second vibrating arm when deflecting due to an angular velocity applied to the tuning fork vibrator. A ratio R1/R2 is smaller than “1”, where R1 is the driving resistance at the fundamental vibration frequency, and R2 is the driving resistance at a vibration frequency different from the fundamental vibration frequency. This angular velocity sensor does not output unnecessary signals even if receiving disturbance.
    • 角速度传感器包括音叉振动器,设置在调谐民用振动器上的驱动单元和用于检测调谐民间振动器的偏转量的检测单元。 音叉振动器包括具有第一端和第二端并具有基本振动频率的第一振动臂,具有第一端和第二端并具有基本振动频率的第二振动臂,以及用于将 第一振动臂的第一端到第二振动臂的第一端。 驱动单元设置在第一振动臂上,并使第一振动臂振动。 驱动单元具有驱动阻力。 检测单元设置在第一振动臂和第二振动臂中的一个上,并且当由于施加到音叉振动器的角速度而偏转时,检测第一振动臂和第二振动臂中的一个的偏转量 。 比率R 1 / R 2小于“1”,其中R 1是基本振动频率下的驱动电阻,R 2是与基本振动频率不同的振动频率下的驱动电阻。 即使接收到干扰,该角速度传感器也不输出不必要的信号。