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公开(公告)号:EP1784711A4
公开(公告)日:2008-10-01
申请号:EP05793408
申请日:2005-08-31
发明人: ZITO TOM , KLEIN MARK D , ALCORN ALLAN E , FLETCHER GARY S JR
CPC分类号: G06F17/30758 , G06F17/30743 , G06F17/30749 , G06Q30/02 , H04H60/58 , H04H60/63 , H04H2201/90 , H04N21/2407 , H04N21/26603 , H04N21/812
摘要: User exposure to media items is detected and measured. A mobile client device (101) carried by a user digitally samples the audio environment of the user on a regular basis. These samples are transformed into a stream of data signatures and compared with reference media items to detect user exposure to the reference items. Purchase behavior following exposure to selected media content items can be detected and tracked as well, so as to gauge effectiveness of media items such as advertisements.