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System and method for delivering targeted advertisements using multiple presentation streams

  • US 20020087975A1
  • Filed: 12/28/2000
  • Published: 07/04/2002
  • Est. Priority Date: 08/31/2000
  • Status: Active Grant
First Claim
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1. A device for delivering channels of presentation streams in a television service network environment to subscribers, the device comprising:

  • a plurality of routing units, each routing unit for receiving a set of presentation streams corresponding to a programming channel, each of the presentation streams in each set carrying the same programming data but different advertisements corresponding to different market segments, wherein at least one of the routing units selectively switches between the presentation streams in the set to deliver one of the presentation streams in the set to said subscribers.

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