Patent ID: 7031306
Filing Date: 2006-04-18
Classification: H04J,H04N

Abstract:
1. A method of transmitting data packets received from a source via a non-constant delay medium, the non-constant delay medium introducing jitter into the data packets, the method comprising: storing the data packets in a buffer, the data packets being part of a single transport stream that by definition includes first and second data packets that contain time stamps and plural data packets between the first and second data packets that do not contain time stamps; determining a play-out schedule for the data packets based on the time stamps and an amount of data in the data packets, wherein the play-out schedule is determined without altering the time stamps; transmitting the data packets from the buffer in accordance with the play-out schedule, wherein the plural data packets are transmitted at a different rate than the first and second data packets in order to reduce the jitter; and implementing a clock synchronization process that uses the time stamps to synchronize play-out of the data packets to a clock of the source.