Abstract: An electronic tag is configured to be responsive to a TTO or TTF protocol energizing signal from a reader, but to suspend transmission when receiving an RTF protocol communication signal from a reader. The tag typically includes a protocol detector 120 which is operable to detect receipt of an RTF protocol communication signal and to suspend transmission when the electronic tag receives an RTF protocol communication signal from a reader.
Type:
Grant
Filed:
September 15, 2007
Date of Patent:
April 10, 2012
Assignees:
EM Microelectronic-Marin SA, Ipico South Africa (Proprietary) Limited
Inventors:
Hendrik Lodewyk Van Eeden, Albertus Jacobus Pretorius, Josef Preishuber-Pfluegl, Andreas Schuhai, Thierry Roz, Christopher Turner