Patent ID: 9237179
Filing Date: 2016-01-12
CPC Classification: H04J,H04L

Claim Text:
1. A method for synchronizing outputs of at least two terminals, the method comprising: establishing one or more low delay communication channels between the terminals and a synchronization unit, the synchronization unit being comprised in one of the at least two terminals, and the one or more low delay communication channels being established as part of a communication session between the terminals; at the synchronization unit, receiving respective synchronization information from each of the terminals via the one or more low delay communication channels, the respective synchronization information comprising indicia of a respective arrival time at each terminal of a respective media unit in a respective input stream; the synchronization unit calculating delay information on the basis of the respective synchronization information received from the terminals; and transmitting the delay information to at least one of the terminals, the delay information providing a basis for the at least one terminal to delay its output such that the outputs of the terminals are synchronized to within a threshold level.