Group Coordination Protocol For Networked Multimedia Systems
Tech ID: 10195 / UC Case 2000-380-0
BACKGROUNDCollaborative Multimedia Applications (CMA) allow users to share information and efforts in real-time and are becoming increasingly popular for group telecollaboration across wide-area networks. Although reliable multicasting has improved in recent years, many fundamental coordination problems limit the widespread sharing of virtual workspaces. The resulting consequences, such as flawed telepresence, mutual awareness coordination problems, speech initiation conflicts, and diminished interaction, can be remedied by an effective mediation protocol.
DESCRIPTIONScientists at the University of California have developed a novel method of orchestrating the interaction and collaboration of groups of users working together on a computer network in real time. By using a Hierarchical Group Coordination Protocol (HGCP) embedded with a reliable hierarchical multicast, this method is able to support large groups on the Internet instead of a few users within a local-area network.
APPLICATIONSThis invention has many multicast-based group-oriented applications, including:
- Teleconferencing systems;
- Distributed interactive simulations;
- Distance learning seminars;
- Sharing resources in a virtual workspace.
ADVANTAGESThe new UC technology provides the following benefits:
- Able to support long-distance, many-to-many group collaboration;
- Shared access to resources by many users in real-time can be mitigated in a fair, distributed control process established by a network protocol;
- Permits more efficient conference control over a shared control tree with concurrent reliable multicast;
- Able to support selective, secure, and anonymous collaboration at real-time;
- Extends concurrency control and mutual exclusion technology to general multimedia semantics and direct user-to-user interaction, thereby allowing any collaborative application of the method from local to Internet scope.
REFER ALSO TO UC CASES 2000-303, 2000-311, 2000-314, 2000-349 THROUGH 356, 2000-360, 2000-380, 2000-383 THROUGH 385
|United States Of America||Issued Patent||6,950,853||09/27/2005||2000-380|
- Dommel, Hans Peter
- Garcia-Luna-Aceves, Jose Joaquin(JJ
ADDITIONAL TECHNOLOGIES BY THESE INVENTORS
- Scalable Integrated Services Architecture For Computer Networks
- Multicast Routing Protocol For Wireless And Mobile Computer Networks
- Receiver Initiated Channel Hopping (Rich)
- Bandwidth Efficient Source Tracing (Best) For Wireless Networks
- On-Demand Loop-Free Multipath Routing
- Differentiating Congestion Vs. Random Loss: A Method For Improving Tcp Performance Over Wireless Links
- Improving Tcp Congestion Control Over Internets With Heterogeneous Transmission Media
- Mpath: A Loop-Free Multipath Routing Algorithm Using Predecessor Information
- Receiver Initiated Multiple Access For Ad-Hoc Networks
- System And Method For Ad Hoc Network Access Employing The Distributed Election Of A Shared Transmission Schedule
- Tree-Based Ordered Multicasting