Server-Side Manifest Fragment Insertion for Seamless Media Playback

The patent introduces a manifest server as an intermediary component that generates and manages manifests containing fragment information from multiple origin servers. This mediator coordinates the complex interactions between feature content servers and advertisement content servers, allowing client devices to play back multi-source content seamlessly without directly managing the complexity of coordinating multiple sources. The manifest server handles the burden of fragment insertion and delivery coordination, thus improving playback continuity while containing system complexity within a dedicated management component.

Instead of requiring client devices to implement complex logic for handling multi-source content playback, the patent inverts the approach by implementing the complexity on the server side. The manifest server generates manifests that organize fragments from multiple sources, and the edge servers handle the fragment insertion and delivery. This allows older media players with simpler capabilities to playback multi-source bitstreams without requiring software updates, as the complexity is externalized to the server infrastructure rather than embedded in the client devices.

The patent segments the content delivery system into distinct functional components: feature content origin servers, advertisement content origin servers, a manifest server, and edge servers. Each entity can be controlled by different organizations independently. The manifest server acts as a coordination point that receives fragment information from different origin servers and generates unified manifests. This segmentation allows organizational independence to be maintained while achieving seamless playback transitions, as each entity operates autonomously but contributes to the coordinated whole through the manifest-based architecture.