发明名称 |
Apparatus and method for sensing opening and shutting of wireless communication terminal by using strain gauge |
摘要 |
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. |
申请公布号 |
US2005279176(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
US20050061507 |
申请日期 |
2005.02.22 |
申请人 |
CURITEL COMMUNICATIONS, INC. |
发明人 |
KIM CHEUL M. |
分类号 |
H04B1/40;G01L1/00;H04M1/02;H04M1/73;(IPC1-7):G01L1/00 |
主分类号 |
H04B1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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