Patent ID: 6351630
Filing Date: 2002-02-26
Classification: G06K,H04B

Abstract:
A wireless communications system comprising:a first transponder adapted to be coupled to one of a plurality of selectable antennas, having a look-up table including locations holding data representing at least three antennas, and having pointers pointing to selected ones of the locations, the pointers defining an order in which antennas will be used to attempt communication; and a second transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in one location of the table for communication with the second transponder, and, if successful communication with the second transponder is not established, the first transponder uses an antenna defined by data in another location of the table selected in accordance with the order defined by the pointers; wherein the first transponder is operable in a first mode, wherein the first antenna that resulted in a successful communication will be first used in the next communication attempt, and wherein the first antenna that resulted in a successful communication will be used earlier in the order though not first, in the next communication attempt.