The invention relates to a device and method for reliably determining the deliberate use of a contactless data carrier. In addition to an antenna-based data transmission channel, an optical data transmission channel can, according to the data to be transmitted, be used between the reading device and data carrier.
申请公布号
WO2004090800(A3)
申请公布日期
2004.12.23
申请号
WO2004EP03880
申请日期
2004.04.13
申请人
GIESECKE & DEVRIENT GMBH;GRAF, HANS;FINKENZELLER, KLAUS;ROSSMADL, ALFRED
