Patent ID: 6505169
Filing Date: 2003-01-07
Classification: G06Q

Abstract:
A method of maintaining and updating an advertisement/announcement cache at a local point-of-presence in an IP network for inserting appropriate advertisements/announcements in streaming media transmitted through the IP network to a recipient, the method comprising the steps of:maintaining and updating a cache of frequently-requested media and associated content metadata for each maintained media stream; maintaining and updating a cache of advertisements/announcements and associated ad metadata for each advertisement/announcement; colleting measurements, on a periodic basis, of the identity of each media stream requested, the number of times each stream was requested during the period, and the identity of each recipient of each stream and storing as content metadata; collecting demographic information for each identified recipient and storing as ad metadata; and storing and updating, in a measurement server at the point-of-presence, the collected measurements and demographic information; and comparing the ad metadata to the content metadata for determining which advertisements/announcements to insert into a stream of media.