Patent ID: 7349675
Filing Date: 2008-03-25
Classification: G04G,H04B,H04H,Y02D

Abstract:
1. A method of encoding a data stream, comprising the steps of: partitioning the data stream into data packets at a transmission network center; transmitting the data packets to a broadcast generator; receiving the transmitted data packets at the broadcast generator; writing the received data packets into an I/O memory of the broadcast generator; reading extracted data packets from the I/O memory in an order that differs from the order in which the received data packets arrived at the I/O memory block; encoding the extracted data packets into a first portion of encoded data streams for transmission at a first latency and a second portion of encoded data streams for transmission at a second latency, wherein the second latency is lower than the first latency; and interleaving said first and second portions over a broadcast frame that includes sub frames, wherein each sub frame includes data associated with the first portion and data associated with the second portion that are interleaved together, and wherein each of the extracted data packets that are associated with the first portion is interleaved across multiple subframes.