A “Media Identifier” operates on concurrent media streams to provide large numbers of clients with real-time server-side identification of media objects embedded in streaming media, such as radio, television, or Internet broadcasts. Such media objects may include songs, commercials, jingles, station...http://www.google.ca/patents/US7574451?utm_source=gb-gplus-sharePatent US7574451 - System and method for speeding up database lookups for multiple synchronized data streams
