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21. 发明公开

KR1020140020047A ＮＦＣ 회로 및 이의 동작 방법 审中-实审
标题翻译：近场通信电路及其操作方法
公开(公告)号：KR1020140020047A
公开(公告)日：2014-02-18
申请号：KR1020120086416
申请日：2012-08-07
申请人： 삼성전자주식회사
发明人： 노형환 , 송일종 , 윤철수
IPC分类号： H04B5/02 , H04L27/00
CPC分类号： H04B5/0012 , G06K19/0726 , H04B5/0031 , H04B5/0056
摘要： Disclosed are a near field communication (NFC) circuit and an operating method thereof. The NFC circuit comprises an NFC reader circuit configured to communicate with an outside through an antenna, a resonant and matching circuit connected between the NFC reader circuit and the antenna, an NFC card circuit connected between nodes positioned between the resonant and matching circuit and the antenna and configured to communicate with the outside through the antenna, and a processor configured to output a plurality of control signals when the NFC reader circuit is enabled, wherein the NFC card circuit is configured to control a resonant frequency of the antenna in response to the plurality of control signals.
摘要翻译：公开了近场通信（NFC）电路及其操作方法。 NFC电路包括被配置为通过天线与外部通信的NFC读取器电路，连接在NFC读取器电路和天线之间的谐振和匹配电路，连接在位于谐振电路和匹配电路之间的节点与天线之间的NFC卡电路并且被配置为通过天线与外部进行通信;以及处理器，被配置为当NFC读取器电路被使能时输出多个控制信号，其中所述NFC卡电路被配置为响应于所述多个控制信号来控制所述天线的谐振频率的控制信号。

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