发明名称 |
RADIO-FREQUENCY COMMUNICATION DEVICE, SYSTEM AND METHOD |
摘要 |
The invention relates to a radio-frequency communication device comprising an inductive antenna in order to communicate with a transponder. According to the invention, the antenna is capable of establishing weak coupling with a transmitter which produces a magnetic field which is substantially homogeneous on the scale of the antenna and is also capable of establishing strong inductive coupling with a transponder located in the vicinity of the device, with the device comprising a transponder interrogation circuit comprising means of sampling and processing the signal on the antenna terminals which are capable of producing a reference signal as a function of said signal; modulation means capable of modulating the reference signal; and application means capable of applying the modulated signal to the antenna terminals.
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申请公布号 |
US2009291635(A1) |
申请公布日期 |
2009.11.26 |
申请号 |
US20090428863 |
申请日期 |
2009.04.23 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
SAVRY OLIVIER |
分类号 |
H04B5/00;H01Q7/00;H01Q21/00;H04B1/38 |
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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