发明名称 |
Overvoltage protection in a near field communications (NFC) capable device |
摘要 |
A near field communications (NFC) device is disclosed that interacts with other NFC devices to exchange information and/or the data. Another NFC device inductively couples a received communications signal onto an antenna circuit of the NFC device to provide a recovered communications signal. An overvoltage protection module regulates a power level of the recovered communication signal by detuning the antenna circuit when the power level of the recovered communication signal may cause damage the NFC device. Active components of the overvoltage protection module, such as voltage controlled impedances, operate in their linear mode of operation to reduce unwanted emissions during this regulation process. |
申请公布号 |
EP2388930(A3) |
申请公布日期 |
2013.12.18 |
申请号 |
EP20110004198 |
申请日期 |
2011.05.20 |
申请人 |
INNOVISION RESEARCH & TECHNOLOGY PLC |
发明人 |
WILSON, ROBIN WYNDAM JOHN;DOMING, PHILLIP |
分类号 |
H04B5/00 |
主分类号 |
H04B5/00 |
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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