Patents Assigned to ATT Knowledge Venturers, L.P.
  • System and method for delivering personalized advertising data
    Patent number: 7814521
    Abstract: A method is disclosed for distributing advertising data in an internet protocol television (IPTV) system, the method including dividing a plurality of end user devices in the IPTV system into K advertising groups; multicasting J advertising data multicast groups to end user devices in J advertising groups having a percentile ranking above or equal to a predetermined percentile ranking; and unicasting advertising data channels for actively viewed IPTV channels being viewed by other end users.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: October 12, 2010
    Assignee: ATT Knowledge Venturers, L.P.
    Inventors: Canhui Ou, Zhi Li, Yali Liu