Two MrSAs, namely the LiveCast and InfoCast applications, will be licensed to NIPs and NSPs through non-exclusive licensing agreements. The Multicast technologies developed in HKIPMI will be vastly superior to existing unicast technologies in terms of both performance and cost. We intend to use these two applications to demonstrate the superiority and cost-effectiveness of Multicasting.


Renamed as Program Guide TV (PGTV)

PGTV employs IP Multicast technology to multicast digital entertainment to a large number of recipients. Practical applications may include Internet TV, Internet Radio and Internet News Broadcast. While these types of applications have already existed for some time, the scale is small due to the significantly large bandwidth required to deliver replicated copies of data to each recipient.

PGTV system can multicast video content to an arbitrary number of recipients on the network, and yet maintain the same quality of service without additional resource requirements from the server. Through this means, delivery performance can significantly be improved, and the cost in providing video multicast services would subsequently be lowered. This multicast approach is essential for the successful deployment of large-scale video distribution services.

PGTV is unicast and multicast enabled. Highlighted features are as follows:

1. Video Server:
  • MPEG1 encoding format
  • Forward Error Correction
  • Dynamic Encryption

    2. Video Client:
  • Active X
  • Self-developed Player

    3. Proxy Server: Unicast to Multicast Tunneling

    4. Database Server:
  • Channel Information
  • User Information
  • Proxy Information
  • IP Restriction Informaton

    5. Security Server:
  • User Authentication
  • Channel List Delivery

    6. Admin Manager:
  • Scheduler
  • Proxy Management
  • User Group Management

    7. Content Manager:
  • Account Management
  • Database Management
  • Schedule Query



    InfoCast System employs IP Multicast technology to deliver multimedia information to a large number of recipients. Practical applications may include financial, news, and weather information distribution. Similar to LiveCast, the adoption of Multicast technologies enables the system to scale up to an arbitrary number of recipients on the network. Apart from improved scalability and reduced cost, the Multicast approach also substantially reduces the time needed for information distribution. This timeliness advantage is especially prominent in the distribution of financial information, such as realtime stock quotes.



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