Packet data sorting system for real time protocol transmission over internet protocol links allocates memory zones according to packet index with lost packet threshold

摘要

A packet data sorting system has buffer memory (11) between transmitter (1) and real time data processor (5) with N zones (15) for packets allocated according to the packet index modulo N with missing packet monitoring and modification of the stored packet indices by addition of integral multiples of N when the index repeats or buffer reset when the number not received exceeds a threshold.