Patent ID: 7764671

Claim:
A method for communicating audio comprising: communicating audio between an encoder and decoder using a 2-line serial multi channel audio interconnect data bus including only a first signal line and a second signal line; transmitting, by the encoder, audio information segments on the first signal line, each segment including (i) a format portion representative of audio format modes and (ii) a data portion having audio data corresponding to one or more of the format modes; and transmitting, by the encoder, a number of synchronization markers on the second signal line, each marker being representative of a timing of one of the audio information segments, a rate of the markers being independent of a system clock rate, wherein only the first signal line and the second signal line form the 2-line serial multi-channel audio interconnect data bus structured to communicate audio, the system clock not communicated via the 2-line serial multi-channel audio interconnect data bus.