Patent ID: 7647604
Filing Date: 2010-01-12
Classification: H04H,H04N

Abstract:
1. A method of identifying a media source, comprising: generating first signature information based on media presented via a media delivery device; comparing the first signature information to second signature information, wherein the second signature information is derived from a library of signature information local to the media delivery device; generating a collection of matching signature information based on the comparison of the first and second signature information; identifying a source of the media presented via the media delivery device based on the collection of matching signature information; and performing a time shift analysis on the collection of matching signature information by identifying records in the collection of matching signature information having substantially identical signature values and substantially different time stamp values, wherein the first signature information includes a first time stamp and a first signature value associated with a first media source communicatively coupled to the media delivery device, and wherein the second signature information includes a second time stamp, a second signature value and a source identifier associated with a second media source communicatively coupled to the media delivery device, wherein at least one of generating the first signature information, comparing the first signature information to second signature information, generating the collection of matching signature information, identifying the source of the media, or performing the time shift analysis are performed by a processor executing instructions stored on a computer readable medium.