video.ppt

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video.ppt

  1. 1. Video Conferencing An Introduction to the Technology Carl A. Zaner September 2000
  2. 2. Video Conferencing <ul><li>Introduction </li></ul><ul><li>What is Video Conferencing? </li></ul><ul><li>How is Video Conferencing Used? </li></ul><ul><li>Where is the Technology Going? </li></ul><ul><li>Summary </li></ul><ul><li>What Have We Learned? </li></ul>
  3. 3. Video Conferencing <ul><li>What is Video Conferencing? </li></ul><ul><ul><li>Brief History </li></ul></ul><ul><ul><ul><li>First Public Introduction at 1964 New York World’s Fair -- AT&T’s VideoPhone ® -- “Gee Wiz” Factor – Very Costly </li></ul></ul></ul><ul><ul><ul><li>Very Little Development Outside the Laboratory for 25 Years -- No Practical Application Foreseen in the Market </li></ul></ul></ul><ul><ul><ul><li>Widespread Development Ramped-up During Late ‘80s -- Especially within Military Market -- Big Ticket Item </li></ul></ul></ul><ul><ul><ul><li>Drive to Establish International Interoperability and Standards Forced Market / Vendor Expansion in Late ‘80s </li></ul></ul></ul><ul><ul><ul><li>Television Studio Production Values Pushed Transmission Clarity and Usability Features </li></ul></ul></ul>
  4. 4. Video Conferencing <ul><li>What is Video Conferencing? </li></ul><ul><ul><li>Types of Technologies -- How Does it Work? </li></ul></ul><ul><ul><ul><li>Analog TV Broadcast Teleconferencing Network Feeds and Radio Frequency Transmission </li></ul></ul></ul><ul><ul><ul><li>Compressed Digital Teleconferencing Digitized (Coded / Decoded) Circuit-Switched Transmission via Public Switched or Private Telecommunications Networks </li></ul></ul></ul><ul><ul><ul><li>Broadband Satellite Teleconferencing Wideband Transmission via Transponder Space </li></ul></ul></ul><ul><ul><ul><li>Internet-based Teleconferencing ‘IP’ Packet-Switched Routing via Switched Networks </li></ul></ul></ul>
  5. 5. Video Conferencing <ul><li>What is Video Conferencing? </li></ul><ul><ul><li>ITU's Video Conferencing (Umbrella “H.320”) Standards: </li></ul></ul><ul><ul><ul><li>H.320 -- Enables Desktop Audio and Video Components to be Shared in Multiple Locations Over ISDN Circuits </li></ul></ul></ul><ul><ul><ul><li>H.323 -- Allows for Video Conference Transmissions Over LANs (i.e., Ethernet) </li></ul></ul></ul><ul><ul><ul><li>H.324 -- Provides Ability to Video Conference Over Analog Phone Lines, via 28.8 kbps Modems </li></ul></ul></ul><ul><ul><ul><li>T.120 -- Provides Desktop Video Conference Collaboration and Document Sharing, via File Transfer Protocol (FTP) </li></ul></ul></ul>
  6. 6. Video Conferencing <ul><li>How is Video Conferencing Being Used? </li></ul><ul><ul><li>Traditional Face-to-Face Meetings </li></ul></ul><ul><ul><ul><li>Point-to-Point </li></ul></ul></ul><ul><ul><ul><li>Multipoint (Bridging) </li></ul></ul></ul><ul><ul><li>Workgroup Collaboration </li></ul></ul><ul><ul><li>Distance Learning </li></ul></ul><ul><ul><li>Video-on-Demand </li></ul></ul><ul><ul><li>Telemedicine </li></ul></ul><ul><ul><li>Telediagnosis </li></ul></ul><ul><ul><li>Teleconsulting </li></ul></ul><ul><ul><li>Teletherapy </li></ul></ul>
  7. 7. Video Conferencing Applications Typical Executive Conference Typical Workgroup Conference
  8. 8. Video Conferencing Applications Typical Desktop Conference Typical Workgroup Conference
  9. 9. Video Conferencing Applications Roll-about Conferencing Unit Roll-about Telemedicine Unit
  10. 10. Video Conferencing <ul><li>Where is Video Conferencing Technology Going? </li></ul><ul><ul><li>Evolving Applications </li></ul></ul><ul><ul><li>Maturing of Standards and Quality Fosters Usability </li></ul></ul><ul><ul><li>Corporate / Public Acceptance </li></ul></ul><ul><ul><li>Increased Usability Promotes Greater Use </li></ul></ul><ul><ul><li>Impact on Local Area / Wide Area Networks </li></ul></ul><ul><ul><li>Increased Use Forces Continuing Network Deployment and Development </li></ul></ul><ul><ul><li>Growth Forecasts </li></ul></ul><ul><ul><li>Increased Network Capabilities Encourage Future Enhancements, Features and Functions, which Contribute to Continuing Acceptance and Demand </li></ul></ul>
  11. 11. Video Conferencing <ul><li>Where is Video Conferencing Technology Going? </li></ul><ul><li>Growth -- Desktop Conferencing Alone, is Expected to Double Each Year through 2001 </li></ul>* Source: InfoWorld - December 1996
  12. 12. Video Conferencing <ul><li>Summary </li></ul><ul><ul><li>What Have We Learned? </li></ul></ul><ul><ul><li>Video Conferencing has Evolved over 35 Years, from a Technology-Driven &quot;Gee Wiz&quot; Toy to a User-Driven Tool, Facilitating Today's Business, Education and Medical Sectors with New Global Communications Capabilities </li></ul></ul>

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