Patent ID: 7978979

Claim:
A system, comprising: a first receiver; a second receiver; an input device configured to transmit a command signal in response to user input; an input waveguide, comprising: a first end in communication with the input device and terminating at the first receiver; and a second end in communication with the second receiver; wherein the input waveguide is arranged to receive and route the command signal to the second receiver; and an output waveguide, comprising: a first end in communication with the first receiver; and a second end in communication with the second receiver; wherein the second receiver is configured to: determine whether the command signal is directed to the first receiver or the second receiver based a code contained in the command signal; execute the command signal when it is determined that the command signal is directed to the second receiver; and relay the command signal through the output waveguide to the first receiver for execution when it is determined that the command signal is directed to the first receiver.