Patent ID: 6982646

Claim:
A system comprising: a. a monitor for determining whether a provided radio frequency identification device is present, determining being in accordance with a radio frequency signal input to the monitor; and b. a plurality of antenna controllers coupled to the monitor via a provided network, the network for conveying one or more commands and for conveying the radio frequency signal, an antenna controller of the plurality comprising: (1) a coupler; (2) a radio frequency amplifier; and (3) a plurality of antenna interfaces, each for coupling a provided antenna to the coupler; wherein c. in response to the one or more commands received from the monitor via the network and identified to the antenna controller by an address of the one or more commands, the coupler couples at least one antenna interface identified by the one or more commands to the amplifier for providing an amplified signal, and the antenna controller provides the radio frequency signal to the monitor in accordance with the amplified signal.