发明名称 |
Contact-sensing device, mobile information terminal, and capacitance calibration program and method |
摘要 |
A contact-sensing device includes a capacitance contact-sensing unit including contact-sensing areas configured to at least detect contact with an external object; a calibration-value setting unit configured to set a calibration value to be used to calibrate capacitances of the contact-sensing areas on the basis of capacitances of the contact-sensing areas excluding the contact-sensing area detected by the contact-sensing unit to be in contact with the external object; a calibration determining unit configured to determine whether or not calibration of the capacitances of the contact-sensing areas is to be carried out on the basis of capacitances of the contact-sensing areas excluding the contact-sensing area detected by the contact-sensing unit to be in contact with the external object; and a capacitance calibrating unit configured to calibrate capacitances of all of the contact-sensing areas using the calibration value set by the calibration-value setting unit when the calibration determining unit determines that calibration is to be carried out. |
申请公布号 |
EP2112763(A1) |
申请公布日期 |
2009.10.28 |
申请号 |
EP20090156846 |
申请日期 |
2009.03.31 |
申请人 |
SONY ERICSSON MOBILE COMMUNICATIONS AB |
发明人 |
UMEDA, TETSUO |
分类号 |
H03K17/96 |
主分类号 |
H03K17/96 |
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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