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Video policy server

a video policy server and video technology, applied in the field of network content distribution, can solve the problem of high inefficiency in the use of network resources

Inactive Publication Date: 2005-08-25
CAMIANT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One disadvantage of this architecture is that the edge QAM 16 is statically mapped to a particular session manager / VOD server combination, and cannot be shared with another session manager.
This arrangement represents a highly inefficient use of network resources.

Method used

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Examples

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Embodiment Construction

[0032] The described embodiment is a cable network architecture in which a video policy server (VPS) coordinates allocation of network resources among two or more video-on-demand (VOD) servers each coupled to session managers (also referred to herein more generally as video content sources). As used herein, the term “network resources” specifically refer to edge QAM resources, but in general, the network resources may include any network components in the cable network architecture from the data source to the ultimate subscriber destination.

[0033] Although the described embodiment distributes video content across a cable network, the concepts described herein also apply to the distribution of more general digital content, such as video gaming content and other application data from two or more digital content sources. Central to this distribution of digital content is a policy server that allocates network resources to two or more digital content sources based on various considerat...

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Abstract

A system for distributing digital content includes two or more digital content sources. Each source has a separate session manager that is distinct from other session managers associated with other digital content sources. The system further includes at least one set of network resources that receive digital content from the two or more digital content sources, modulate the digital content onto a carrier signal suitable for transmission over an access network, and transmit the carrier signal over the access network. The system also includes a receiving device for terminating the carrier signal. The receiving device generates a digital content stream corresponding to the digital content from the two or more digital content sources. The system further includes a policy server for allocating bandwidth of the network resources to the digital content sources, and for monitoring a utilization state of the network resources.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims benefit of the following U.S. Provisional Patent Applications: [0002]“VIDEO POLICY SERVER,” U.S. Provisional Patent Application Ser. No. 60 / 538,803; filed Jan. 23, 2004 and, [0003]“POLICY BASED ADMISSION CONTROL,” U.S. Provisional Patent Application Ser. No. 60 / 538,802, filed Jan. 23, 2004.BACKGROUND OF THE INVENTION [0004] The present invention relates to content distribution over a network, and more particularly, to managing distribution resources for video-on-demand (VOD) and other content services on a cable network. [0005] Video-on-demand, one of several services offered by cable multiple system operators (MSOs), enables a subscriber to customize cable content according to their preferences and / or schedules. A typical VOD distribution architecture 10, shown in FIG. 1, includes a VOD server 12 and a session manager 14, a number of edge quadrature amplitude modulation (QAM) interfacing devices 16, a cable acce...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L47/724H04N7/173
CPCH04L12/5695H04L47/10H04L47/724H04L47/781H04L47/821H04N21/47202H04N21/2225H04N21/2381H04N21/2385H04N21/2402H04N7/17336H04L47/70
Inventor RILEY, YUSUN KIM
Owner CAMIANT INC
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