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    • 3. 发明申请
    • Apparatus and method for sensing opening and shutting of wireless communication terminal by using strain gauge
    • 使用应变片检测无线通信终端的打开和关闭的装置和方法
    • US20050279176A1
    • 2005-12-22
    • US11061507
    • 2005-02-22
    • Cheul Kim
    • Cheul Kim
    • H04B1/40G01L1/00H04M1/02H04M1/73
    • H04M1/0245H04M1/0214
    • Provided is an apparatus and method for sensing the opening and shutting by using a strain gauge. The apparatus and method can reduce power consumption by using an output value of an analog-to-digital converter based on an output voltage value to sense opening and shutting and supplying or shutting off power. The opening and shutting apparatus includes: a strain gauge having a resistance value which is varied as the strain gauge is deformed by an external force; a voltage distributor for distributing voltage to the strain gauge based on the resistance value; an analog-to-digital (A/D) converter for converting the voltage of the strain gauge into a digital output value; and a controller for controlling the power to be supplied to or shut off from predetermined elements of a wireless communication terminal by sensing the opening and shutting based on the output from the A/D converter.
    • 提供了一种通过使用应变仪感测开闭的装置和方法。 该装置和方法可以通过使用基于输出电压值的模拟 - 数字转换器的输出值来检测打开和关闭并提供或关闭电力来降低功耗。 打开和关闭装置包括:应变仪,其具有随应变仪由外力变形而变化的电阻值; 电压分配器,用于基于电阻值向应变仪分配电压; 用于将应变计的电压转换成数字输出值的模数(A / D)转换器; 以及控制器,用于通过基于来自A / D转换器的输出来感测开启和关闭来控制要向无线通信终端的预定元件提供或切断的电力。