Patent ID: 8121548
Filing Date: 2012-02-21
Classification: H04M,H04W

Abstract:
1. A short range radio device comprising: a microphone input; an audio output; a short range radio transceiver capable of communicating digital data with a plurality of compatible neighbouring radio devices; and a delay coupled between the microphone input and the audio output, wherein the short range radio device is configured to receive outgoing audio data from a first neighbouring radio device, to mix an input audio signal received at the microphone input with the received outgoing audio data to obtain combined audio data and to transmit the combined audio data to a second neighbouring radio device, wherein the short range radio device is further configured to receive incoming audio data from the second neighbouring radio device representing a mix of at least the combined audio data and an input audio signal received at a microphone input of the second neighbouring radio device, to provide an output audio signal corresponding to the received incoming audio data, and to re-transmit the received incoming audio data to the first radio device, and wherein the delay is configured to cancel the input audio signal from the microphone input of the short range radio device in the output audio signal outputted at the audio output.