Patent ID: 8525669

Claim:
A system comprising: a plurality of identification units, each of the plurality of identification units being associated with a different one of a plurality of participants and configured to be carried by the plurality of participants at a conference; and a tracking module associated with each of the plurality of identification units, wherein a tracking module in a first one of the plurality of identification units transmits information from an external transmitter device that resides at a vendor booth at a conference to a tracking module of a second one of the plurality of identification units for storage in the tracking module of the second one of the plurality of identification units and for subsequent relay from the second one of the plurality of identification units to a monitoring station; and wherein the tracking module in the first one of the plurality of identification units receives information from the tracking module of the second one of the plurality of identification units which was received by the second one of the plurality of identification units from at least one other external transmitter device, and stores the information in the memory to relay the information to the monitoring station.