APPARATUS FOR ACTIVE RADIO FREQUENCY IDENTIFICATION OF A PLURALITY OF TAG TRANSPONDERS

摘要

Apparatus (2) for active radio frequency identification of a plurality of tag transponders (4), which apparatus (2) operates such that air time data transmission (6) is utilised for controlling operation of the tag transponders (4), and which apparatus (2) comprises; (a) tag transponder unique identifier means (10); (b) reader unique identifier means (12); (c) message sequence number means (14); (d) command means (16); (e) data means (18); (f) source device controlling version means (20); and (g) fixed total size and sub-field size.