Patent ID: 8026817

Claim:
A method for radio frequency identification (RFID) tag positional addressing, comprising: receiving an activating signal broadcast by an RFID reader, the activating signal activating a plurality of first RFID tags and a plurality of second RFID tags, wherein each first RFID tag emits an identification (ID) and a position in response to the activating signal; capturing the IDs and positions emitted by the first RFID tags using the plurality of second RFID tags, wherein each second RFID tag captures the IDs and positions emitted by the first RFID tags located in a vicinity of the second RFID tag, and wherein each second RFID tag determines its physical location based on the captured IDs and positions; and the RFID reader sending a read command, the read command including a position of a targeted one of the second RFID tags that is to be read by the RFID reader, wherein only the targeted second RFID tag located at the position in the read command responds to the read command.