A data reading system includes a dual ended cable for connecting an electronic article surveillance (EAS) antenna located on a data reader with a separate radio frequency identification (RFID) reading device. The dual ended cable has different termination impedances at either end, and has an impedance...http://www.google.co.uk/patents/US6517000?utm_source=gb-gplus-sharePatent US6517000 - Dual ended cable for connecting electronic article surveillance antenna with RFID equipment