Patent ID: 8930006
Filing Date: 2015-01-06
Classification: H04J,H04R

Abstract:
1. A data transfer method in a digital sound reproduction system, said method comprising the steps of; generating a digital audio stream for multiple channels in a host data source, the audio stream being formed by multiple consecutive samples, receiving the digital audio stream sent by the host data source through a digital data transmission network by several digital receivers each of which including a microcontroller with a clock, the receivers further including means for generating an audio signal out of the digital audio stream, initiating synchronization, by the host data source, of the receivers by sending repeatedly a synchronization sample to each of the receivers, wherein each receiver replies to the synchronization sample by a return sample, calculating, by the host data source, a latency (T) for each receiver based on the sending time (Th sending, by the host data source, to each receiver information on an estimate of the clock of the host data source at the time the receiver received the synchronization sample, adjusting the function of its clock for each receiver based on said information, continuously repeating the above synchronization steps,