Term Papers on Overview Of Video On Demand Systems

Term Paper Title	Overview Of Video On Demand Systems
# of Words	4185
# of Pages (250 words per page double spaced)	16.74

Overview of Video On Demand Systems

Joseph Newcomer

     SCOPE
     INTRODUCTION
     THE INITIATIVE FOR WORLDWIDE MULTIMEDIA TELECONFERENCING AND VIDEO
          SERVER STANDARDS
     NEW BUSINESS IMPERATIVES
     STARTING WITH STANDARDS
     TWO STANDARDS, ONE GOAL
     STANDARDS FIRST
     SUMMARY
     CONTENT PREPARATION:
     REQUIREMENTS:
     CODECs/Compression
     Object Oriented Database Management Systems
     Encoding Verification
     SUMMARY
     VIDEO SERVER
     REQUIREMENTS
     LIMITATIONS
     PRODUCTS
     DISTRIBUTION NETWORK:
     LAN TYPES
     PROTOCOLS
     WAN TYPES

SCOPE

     Video on demand has evolved as a major implementation problem for
network integrators.  Clients want the ability to retrieve and view stored video
files asynchronously at near broadcast quality, on a local host.  Some problems
integrators face to achieve this goal include: video content preparation, server
storage, network throughput, latency, client interfaces, quality of service, and
cost.  This paper addresses the design considerations for a private video on
demand implementation.

INTRODUCTION

The Initiative for Worldwide Multimedia Teleconferencing and Video Server
Standards

The market for multipoint multimedia teleconferencing and video server equipment
is poised for explosive growth. The technology for this necessary and much-
anticipated business tool has been in development for years. By the turn of the
century, teleconferences that include any combination of video, audio, data, and
graphics will be standard business practice.

Compliance with teleconferencing standards will create compatible solutions from
competing manufacturers, feeding the market with a variety of products that work
together as smoothly as standard telephone products do today. Specifically, with
the adoption of International Telecommunications Union (ITU) recommendations
T.120, H.320 and H261, multimedia teleconferencing equipment manufacturers,
developers, and service providers will have a basic established connectivity
protocol upon which they can build products, applications, and services that
will change the face of business communications.

New Business Imperatives

Voice on Demand systems are starting to be required by commercial, industrial,
governmental and military associations to retrieve past information in order to
prepare and anticipate future events.  This preparation and anticipation can be
crucial to the survival of these industries because of the key roll of the
individuals or groups being monitored.  It is this monitoring and collection of
data that allows these organizations to make informed decisions and to take the
appropriate action to current events.

Multipoint multimedia teleconferencing and video servers offer the required
solution. As defined here, it involves a user-specified mix of traditional voice,
motion video, and still-image information in the same session. The images can be
documents, spreadsheets, simple hand-written drawings, highly-detailed color
schematics, photographs or video clips. Participants can access the same image
at the same time, including any changes or comments on that image that are
entered by other participants.  Video servers allow users to view stored video
files of specific events, conferences, news clips and important information in
near realtime.

The benefits are obvious. Instead of text interpretation of a video clip, all
interested parties can access the information.  Little is left to verbal
interpretation since all users have access to the original video.  In the case
of video clips, a persons actions, verbal tones, mannerisms and reactions to
events around them can be viewed and interpreted.  Increased productivity,
reduced cost, and reduced travel time are the primary benefits while proprietary
technology and solutions are specified as the primary inhibitors of using video
on demand products and services.

Starting with Standards

While multimedia teleconferencing and video servers promise...

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