RFID READER DEVICE HAVING A READ-ONLY MODE, AND RELATED OPERATING METHODS

摘要

A method of operating a radio frequency identification (RFID) reader device is presented. The method begins by operating the RFID reader device in a read-only mode, during which the RFID reader device does not generate tag interrogation signals. The method continues by receiving a tag response signal generated from an RFID tag being interrogated by an interrogator device that is distinct and separate from the RFID reader device. The tag response signal is received by the RFID reader device while it is operating in the read-only mode. The method continues by determining a location of the RFID tag, wherein the location is determined based at least in part on information associated with the received tag response signal.