Method and apparatus for identification of broadcast source

Abstract

A user (102) hears an audio program being broadcast and can record a sample of the audio. The sample is then conveyed to an analyzing means (106) to determine to which broadcast station the user is listening. The analyzing means monitors many broadcast channels. Thus, characteristics of the audio sample and samples taken from the broadcast channels can be compared to find a match. Broadcast information pertaining to the broadcast channel from which the match was found may then be reported back to the user, combined with an advertisement of a promotion, prize notification, discount offers, and other information specific for a certain radio station for example.

Description

[0001] Cross References to Related Applications [0002] Pursuant to 35 U.S.C. §119(e), this patent application claims priority to US Provisional Patent Application Serial No. 60 / 545,879, filed February 19, 2004, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates generally to identifying the source of transmitted content, and more particularly to matching an audio or media file sample to the broadcast source from which the sample was transmitted. Background technique [0004] As the industry moves toward a multimedia-rich work environment, the use of all forms of audio and visual content representation (radio broadcast transmissions, streaming video, audio canvases, visual summaries, etc.) becomes more frequent. Whether users, content providers, or both, everyone searches for ways to best utilize this content. For example, one approach that has the potential for more creative use is content awareness. E...

AI Technical Summary

Problems solved by technology

However, the difficulty with cross-correlation analysis is that in the case of lossy compression devices, the signals are weak and strong correlations may be difficult to achieve

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