发明名称 SHIELDING OF PORTABLE CONSUMER DEVICE
摘要 A portable consumer device is disclosed. An electromagnetic shield is provided in the portable consumer device that is capable of preventing communication between the portable consumer device and an interrogation device. The shield is movable between a distal position in which communication with the interrogation device is enabled and a proximate position in which the shield prevents the transmitting antenna from communicating with the interrogation device.
申请公布号 CA2691142(A1) 申请公布日期 2008.12.18
申请号 CA20082691142 申请日期 2008.05.29
申请人 VISA U.S.A. INC. 发明人 HAMMAD, AYMAN
分类号 G06K17/00;G06K19/07 主分类号 G06K17/00
代理机构 代理人
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