发明名称 |
Magnetic receiver for chip cards uses voltage controlled oscillator to convert amplitude to frequency |
摘要 |
A magnetic receiver on a card (10) has a chip (21) containing coil antenna controlling the output frequency of a voltage controlled oscillator to amplitude modulate an output received by a secondary antenna spiral (22) with electronics (30) to process the modulation and recover the magnetic field amplitude modulation. |
申请公布号 |
FR2814242(A1) |
申请公布日期 |
2002.03.22 |
申请号 |
FR20000011923 |
申请日期 |
2000.09.19 |
申请人 |
FRANCE TELECOM |
发明人 |
BOUVIER JACKY;GEOFFROY PHILIPPE |
分类号 |
G01R33/02;G01R29/08;G06K17/00;G06K19/07 |
主分类号 |
G01R33/02 |
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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