Patent ID: 8837529

Claim:
A system for distributing audio comprising: (a) a master transmitter configured for (i) multiplexing a plurality of Integrated Interchip Sound (I2S) streams as a time-division multiplexed audio stream, each frame of the I2S stream comprising sixty-four bits encoding two channels of audio at twenty-four bits precision and corresponding to a stereo source, (ii) transmitting the time-division multiplexed audio stream on a first communication path wherein each frame of the time-division multiplexed audio stream comprises a plurality of words comprising a start bit, a four bit portion of a sample frame, an inverted copy of the four bit portion, two framing bits and a stop bit, and (iii) transmitting control information on a second communication path; and (b) an expansion receiver configured for (i) receiving the time-division multiplexed audio stream and control information; (ii) demultiplexing the time-division multiplexed audio stream; and (iii) distributing a desired audio channel to a speaker according to the control information.