Abstract: A wireless communications device comprising duplexing means for directing signals from a transmit path towards an antenna and for providing signals from the antenna to a receive path, wherein the transmit path is arranged to send a first signal to the duplexing means, the receive path is arranged to recover a second signal and the device further comprises detecting means for detecting the presence in the receive path of a third signal that will interact with the first signal to produce intermodulation distortion tending to hamper recovery of the second signal and control means responsive to the detecting means for enhancing linearity in the receive path to reduce said intermodulation distortion.

Abstract: An apparatus for amplifying a signal. The apparatus includes an amplifier powered by a power supply, a monitor that monitors an output signal of the amplifier and a controller operative to adjust the power supply if distortion is detected in the output signal of the amplifier by the monitor.

Abstract: A receptacle for receiving smoking waste includes a canister and a cap disposed on the canister. The cap includes a flow-inhibiting surface for affecting gas flow into the canister and a container member forming a containing area disposed horizontally inward of the flow-inhibiting surface for receiving smoke rising from the collection area. The cap can have at least one snuffing area for snuffing smoking material and at least one depositing area for depositing smoking waste into the canister. The opening for depositing smoking waste can allow for 360 degrees access to the user.

Abstract: Apparatus for amplifying a signal, the apparatus comprising an amplifier (12) powered by a power supply (14), a monitor (20) for monitoring an output signal of the amplifier (12) and a controller (22) operative to adjust the power supply (14) if distortion is detected in the output signal of the amplifier (12) by the monitor (20).

Abstract: A wireless communications device comprising duplexing means for directing signals from a transmit path towards an antenna and for providing signals from the antenna to a receive path, wherein the transmit path is arranged to send a first signal to the duplexing means, the receive path is arranged to recover a second signal and the device further comprises detecting means for detecting the presence in the receive path of a third signal that will interact with the first signal to produce intermodulation distortion tending to hamper recovery of the second signal and control means responsive to the detecting means for enhancing linearity in the receive path to reduce said intermodulation distortion.