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Method and system for multicast delivery of multimedia content on demand

a multimedia content and multicast technology, applied in the field of multimedia content transmission, can solve the problems of inefficient use of scarce network resources, destination hosts, unsatisfactory unicasting, etc., and achieve the effect of avoiding network congestion and significant network resources

Inactive Publication Date: 2007-04-12
SMITHS DETECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The present invention solves the problem of the prior art by providing a novel streaming multimedia broadcasting system and method that selectively multicasts its content based on client requests and usage. In particular, the present system includes a server in communication with a plurality of sources and has a plurality of clients. The server determines if at least one of the clients is requesting to receive at least one of the sources. The server then multicasts these requested sources to the requesting clients, respectively. If none of the clients is requesting a particular source, the server does not multicast that particular source. If all of the clients cease requesting a particular source that the server is currently multicasting, the server terminates the multicast of that particular source. By selectively multicasting those sources that are available, significant network resources can be conserved and network congestion can be avoided.

Problems solved by technology

Although this can be done by sending unicast (point-to-point) messages to each of the destination hosts, the added consumption of bandwidth and processing power required to establish connections to the destination hosts make unicasting undesirable in this situation.
On the internet, however, this type of broadcasting-in-the-blind can lead to inefficient use of scarce network resources at best and to severe network congestion at worst.

Method used

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  • Method and system for multicast delivery of multimedia content on demand
  • Method and system for multicast delivery of multimedia content on demand

Examples

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Embodiment Construction

[0019] Referring to FIG. 1, an example of a network system is shown where there are five (5) clients and three (3) cameras (or sources) in communication with a server through various network connections. Although the following description will refer to video captured through cameras as a matter of convenience, it is to be understood that the present invention can accommodate all types streaming content, including without limitation such formats as text, pictures, and audio. Moreover, in some embodiments, various types of networks and / or connections to the servers may be utilized. Moreover, the number of clients and sources may also vary. Accordingly, in some embodiments, the clients and sources may connect to the server through any number of ways including, by way of example only and without limitation, wireless access points, digital subscriber lines, wide area network connections and / or local area network connections.

[0020]FIG. 1 depicts an example of a system where there are 5 c...

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Abstract

A server in connection with a plurality of multimedia sources that has a plurality of clients. The server determines if at least one of the clients is requesting to receive at least one of the sources. The server then multicasts these requested sources to the requesting clients, respectively. If none of the clients is requesting a particular source, the server does not multicast that particular source. If all of the clients cease requesting a particular source that the server is currently multicasting, the server terminates the multicast of that particular source.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS [0001] This Application claims priority to Provisional U.S. Patent Application Ser. No. 60 / 715,552, filed Sep. 9, 2005, to Jonathan Hilton Cooper of Rode Island, the contents of which is incorporated herein in its entirety.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to the transmission of multimedia content on a computer network and more particularly to a multimedia content delivery system and method that maximizes the efficiency of network bandwidth consumption through selective multicasting of the multimedia. [0004] 2. Background of the Invention [0005] Multicasting is a communication pattern in which a source host sends a message to a group of destination hosts. Although this can be done by sending unicast (point-to-point) messages to each of the destination hosts, the added consumption of bandwidth and processing power required to establish connections to the destinatio...

Claims

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Application Information

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IPC IPC(8): G06F15/16H04N21/2743H04N21/6405
CPCH04L12/185H04L29/06027H04L65/4076H04N21/6405H04L65/60H04N21/24H04L65/4084H04L65/611H04L65/612H04L65/1101
Inventor COOPER, JONATHAN HILTON
Owner SMITHS DETECTION
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