发明公开
- 专利标题： PAYMENT CARD SIGNAL CHARACTERIZATION METHODS AND CIRCUITS
- 专利标题（中）： 支付卡的信号检定程序和电路
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申请号： EP05773431.1申请日： 2005-07-15
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公开(公告)号： EP1807789A2公开(公告)日： 2007-07-18
- 发明人: SMETS, Patrick , VAN DE VELDE, Eddy, Lodewijk, Hortensia , GARRETT, Duncan
- 申请人： MASTERCARD INTERNATIONAL, INC.
- 申请人地址： 2000 Purchase Street Purchase, NY 10577-2509 US
- 专利权人： MASTERCARD INTERNATIONAL, INC.
- 当前专利权人： MASTERCARD INTERNATIONAL, INC.
- 当前专利权人地址： 2000 Purchase Street Purchase, NY 10577-2509 US
- 代理机构： Beresford, Keith Denis Lewis
- 优先权： US588270P 20040715
- 国际公布： WO2006020072 20060223
- 主分类号： G06K7/08
- IPC分类号： G06K7/08 ; G06K19/06 ; G06K5/00
摘要：
A reference reader is provided for testing contactless electronic payment cards whose data transmissions are via weak load modulated RF carrier signals. The reference reader includes a reader antenna and a coupled common mode rejection circuit. The common mode rejection circuit is configured to demodulate carrier signals received at the reader antenna to retrieve payment card data signals having low modulation indices.
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