Patent ID: 7430437

Claim:
A method for communicating to a recipient transceiver from a plurality of transceivers, the plurality of transceivers being located within the broadcast range of the recipient transceiver, the method comprising the steps of: (a) transmitting a communication at a first power level such that only a first group of transceivers receive the broadcast, the communication including a command causing each of the first group of transceivers not to respond to a subsequent broadcast; and subsequent thereto (b) transmitting a communication at a second power level greater than the first power level such that a second group of transceivers greater than and including the first group of transceivers receive the broadcast, but such that only a limited number of transceivers of the second group respond to the broadcast, the limited number of transceivers excluding the first group of transceivers; (c) wherein the plurality of transceivers each are associated with a respective sensor for acquiring data and transmitting the data to the recipient transceiver.