Advertisement subgroups for digital streams
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United States of America Patent
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Issued Date -
Sep 1, 2005
app pub date -
May 2, 2005
filing date -
May 10, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A targeted advertising system based on subgroups. Different subgroups are formed based on one or more subscriber characteristics, and different targeted advertisements transmitted to the different subgroups. In the Internet-environment, the subgroups are formed by utilizing multicast addresses. In cable-based and satellite-based systems, the subgroups are formed by node configurations. The targeted advertisements are inserted in the program streams at a centralized distribution point such as a router or a cable television head-end. An apparatus is presented which receives m program streams, n advertisements, and creates p presentation streams containing targeted advertisements, where p is greater than m.
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