Broadcast Packet FEC Configuration for Selective Loss Recovery

The patent applies FEC selectively based on local quality assessment of different content types. It identifies important packets (e.g., video I-frames, audio synchronization packets) and applies FEC encoding only to these critical packets, while omitting FEC from less important packets. This local quality approach maintains data recovery capability for essential content while minimizing overall network overhead.

The patent dynamically adjusts FEC encoding parameters such as code rate and redundancy level based on network conditions and content importance. When network congestion is detected or for high-priority content, higher redundancy is applied; for stable networks or low-priority content, redundancy is reduced. This parameter adaptation resolves the contradiction between recovery reliability and bandwidth overhead.

The patent implements automated self-diagnosis functionality where the system automatically detects packet loss, identifies affected content, and applies appropriate FEC recovery without user intervention. The receiver monitors incoming packets, detects losses, and automatically reconstructs lost data using embedded FEC codes. This self-service mechanism maintains diagnostic accuracy while eliminating the need for manual user actions.

The patent incorporates feedback mechanisms where the receiver continuously monitors packet reception status and network conditions, then automatically adjusts FEC decoding and recovery processes accordingly. This closed-loop feedback system maintains high diagnostic accuracy for packet loss detection while operating completely autonomously without requiring manual user input or selection of diagnosis items.