Patents by Inventor Jiffei Song

Jiffei Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD AND APPARATUS FOR IP MULTICAST RELAY OF LIVE TV STREAMING TRAFFIC IN A TV-OVER-IP ENVIRONMENT
    Publication number: 20070097955
    Abstract: A system for live TV transmission over IP networks incorporates a head end real-time encoding/transcoding server for converting live TV encoded data streams with root multicast relay servers receiving multicast data streams from the encoding/transcoding server. The multicast stream output is provided to a first set of relay servers through multicast capable routers and the root multicast servers provide unicast stream output to a second set of relay servers through unicast limited routers. The first and second sets of relay servers provide unicast and multicast stream output for child servers or local access networks.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Applicant: UTSTARCOM, INC
    Inventors: Qiang Li, Naxin Wang, Jiffei Song