Media.Player

Group Coordination Protocol for Networked Multimedia Systems

Technology 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-wide scope

Technology Application

Teleconferencing systems Distributed interactive simulations Distance learning seminars Sharing resources in a virtual workspace

Detailed Technology Description

Scientists at the University of California have developed a novel method of orchestrating the interaction and collaboration of groups 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 can support large groups on the internet instead of a few users within a local-area network.

Supplementary Information

Patent Number: US6950853B2
Application Number: US2001892708A
Inventor: Garcia Luna Aceves, Jose Joaquin | Dommel, Hans Peter
Priority Date: 27 Jun 2000
Priority Number: US6950853B2
Application Date: 26 Jun 2001
Publication Date: 27 Sep 2005
IPC Current: H04L001218
US Class: 709204 | 370260
Assignee Applicant: The Regents of the University of California
Title: Multisite coordination in shared multicast trees
Usefulness: Multisite coordination in shared multicast trees
Summary: For coordinating multipoint group members for multicast transmission in internet protocol multicast framework.
Novelty: Multipoint group members coordination method for multicast network environment, involves transmitting control directives between group members across shared end-to-end multicast tree

Industry

ICT/Telecom

Sub Category

Telecommunication

Application No.

6950853

Others

Additional Technologies by these Inventors

• Scalable Integrated Services Architecture for Computer Networks
• Scalable 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 Networks with Heterogeneous Transmission Media
• Mpath: A Loop-Free Multipath Routing Algorithm
• 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 in Computer Networks
• HIDRA: Method for Hiding Mobility, Multiplexing, and Multi-Homing from Internet Applications

Tech ID/UC Case

10195/2000-380-0

Related Cases

2000-380-0

*Abstract

Collaborative Multimedia Applications (CMA) allow users to share information and efforts in real-time and are becoming increasingly popular for group tele collaboration across many networks.  However, many fundamental coordination problems in current multicasting systems 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. 

*IP Issue Date

Sep 27, 2005

*Principal Investigator

Name: Hans Peter Dommel

Department:

Name: Jose Joaquin(JJ Garcia-Luna-Aceves

Department:

Country/Region

USA