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    • 23. 发明授权
    • Data transmission apparatus, photoelectric conversion circuit and test apparatus
    • 数据传输装置,光电转换电路和试验装置
    • US07509058B2
    • 2009-03-24
    • US11650100
    • 2007-01-05
    • Atsushi OnoToshiyuki Okayasu
    • Atsushi OnoToshiyuki Okayasu
    • H04B10/00
    • H04B10/504G01J1/44H04B10/5561H04B10/69
    • The data transmission apparatus for performing data communication based on optical transmission includes a transmitting unit for converting and sending electric communication data, which is to be transmitted, into optical communication data, and a photoelectric conversion circuit for receiving the optical communication data and converting the received optical communication data into electric communication data, wherein the photoelectric conversion circuit includes a photodiode for generating a current based on the optical communication data, and a variable current supply for subtracting a predetermined current from the current generated by the photodiode. In addition, a bias current of a laser diode of each transmitting unit is set to a current larger than a laser oscillation threshold current so as to reduce the deviation of a light emission delay time of each laser diode.
    • 用于执行基于光传输的数据通信的数据传输装置包括:发送单元,用于将要发送的电通信数据转换并发送到光通信数据;以及光电转换电路,用于接收光通信数据并转换接收到的光通信数据 光通信数据转换为电通信数据,其中光电转换电路包括用于基于光通信数据产生电流的光电二极管,以及用于从由光电二极管产生的电流中减去预定电流的可变电流源。 此外,每个发送单元的激光二极管的偏置电流被设置为大于激光振荡阈值电流的电流,以便减少每个激光二极管的发光延迟时间的偏差。
    • 25. 发明申请
    • Data transmission apparatus, photoelectric conversion circuit and test apparatus
    • 数据传输装置,光电转换电路和试验装置
    • US20070116474A1
    • 2007-05-24
    • US11650100
    • 2007-01-05
    • Atsushi OnoToshiyuki Okayasu
    • Atsushi OnoToshiyuki Okayasu
    • H04B10/00
    • H04B10/504G01J1/44H04B10/5561H04B10/69
    • The data transmission apparatus for performing data communication based on optical transmission includes a transmitting unit for converting and sending electric communication data, which is to be transmitted, into optical communication data, and a photoelectric conversion circuit for receiving the optical communication data and converting the received optical communication data into electric communication data, wherein the photoelectric conversion circuit includes a photodiode for generating a current based on the optical communication data, and a variable current supply for subtracting a predetermined current from the current generated by the photodiode. In addition, a bias current of a laser diode of each transmitting unit is set to a current larger than a laser oscillation threshold current so as to reduce the deviation of a light emission delay time of each laser diode.
    • 用于执行基于光传输的数据通信的数据传输装置包括:发送单元,用于将要发送的电通信数据转换并发送到光通信数据;以及光电转换电路,用于接收光通信数据并转换接收到的光通信数据 光通信数据转换为电通信数据,其中光电转换电路包括用于基于光通信数据产生电流的光电二极管,以及用于从由光电二极管产生的电流中减去预定电流的可变电流源。 此外,每个发送单元的激光二极管的偏置电流被设置为大于激光振荡阈值电流的电流,以便减少每个激光二极管的发光延迟时间的偏差。
    • 27. 发明授权
    • Double-ended tuning fork vibratory gyro-sensor
    • 双端音叉振动陀螺传感器
    • US06915694B2
    • 2005-07-12
    • US10664821
    • 2003-09-17
    • Yoshiro TomikawaKenji SatoAtsushi Ono
    • Yoshiro TomikawaKenji SatoAtsushi Ono
    • G01C19/56G01C19/574H01L41/08H01L41/18G01P9/04
    • H03H9/2473G01C19/5607
    • The object of the present invention is to provide an angular velocity sensor that uses Coriolis force with a flatly supported double tuning fork structure that uses an in-plane asymmetrical flexural secondary mode. A large support area is used to provide a high-precision angular velocity sensor with superior resistance to vibration and impact. A double tuning fork gyro-sensor is formed integrally from: two arms; a driver electrode formed on the arms; and a double tuning fork supporting the ends of the arms. Also included are: a detection module connected to the double tuning fork support section; a detection electrode formed on the detection module; and a support securing section for the detection module. When there is rotation, the Coriolis force acting on the arms is transferred to the detection module by way of the double tuning fork support section so that an in-plane asymmetrical flexural secondary vibration takes place.
    • 本发明的目的是提供一种角速度传感器,该角速度传感器使用具有平面支撑的双音叉结构的科里奥利力,其使用平面内不对称的弯曲次级模式。 大的支撑区域用于提供高精度的角速度传感器,具有优异的抗振动和冲击能力。 双音叉陀螺仪传感器由两个臂组成: 形成在臂上的驱动电极; 以及支撑臂的端部的双音叉。 还包括:连接到双音叉支撑部分的检测模块; 形成在检测模块上的检测电极; 以及用于检测模块的支撑固定部。 当旋转时,通过双音叉支撑部将作用在臂上的科里奥利力转移到检测模块,从而发生面内不对称的弯曲二次振动。