Patent ID: 8804579

Claim:
For use in a system using time-division-multiple access and multiple wireless modules including a first wireless module having a first transceiver with a receiver that receives data at a first frequency band and a transmitter that sends data at a second frequency band and including a second wireless module having a receiver that receives data operating at a third frequency band, a circuit comprising: an antenna; a duplexer having a transmit band pass filter designed with a rejection band near the third frequency band; a first switch that, in a first state, routes the data from the transmitter of the first wireless module through the duplexer to a second switch and in a second state, routes the data from the transmitter to the second switch by bypassing the duplexer; and the second switch that is connected to the first switch and that in the first state, routes the data from the transmitter to the antenna via the duplexer, and in the second state, routes the data from the transmitter to the antenna while bypassing the duplexer; wherein the first switch is configured and arranged to operate in the first and the second states in response to a signal indicative of the second wireless module receiving data.