公开(公告)号：CA2297497A1

公开(公告)日：2000-08-23

申请号：CA2297497

申请日：2000-01-24

Applicant: IBM

Inventor： PATTNAIK PRATAP ,  FRANKE HUBERTUS ,  BARANSKY YURIJ

IPC: H04N7/16 ,  H04N21/235 ,  H04N21/2365 ,  H04N21/262 ,  H04N21/433 ,  H04N21/434 ,  H04N21/435 ,  H04N21/84 ,  H04N21/8541 ,  H04N21/8547 ,  H04L12/18

Abstract: The present invention is a process in which broadcasters can supplement existing multimedia streams such as video and audio with additional multimedia streams in a coordinated and integrated way, allowing users, after reception of the broadcast stream, to select which sub-stream to use, without requiring an upstream channel to communicate this user preference back to the server or any additional bandwidth to broadcast these additional streams.