Patent ID: 7586439

Claim:
A method for determining the effectiveness of media displays, comprising: employing a plurality of monitoring devices for tracking the paths of travel followed by a plurality of respondents, each of said respondents associated with a respective one of said plurality of monitoring devices, each of said plurality of monitoring devices including: (i) a satellite positioning system (“SPS”) location component for tracking the movement of the related respondent along the path of travel followed by the respondent when the monitoring device is in a location that is suitable for receiving SPS signals; and (ii) an RF location component for tracking the movement of the related respondent along the path of travel followed by the respondent when the monitoring device is in a location that is not suitable for receiving SPS signals, each of said plurality of monitoring devices generating tracking data that represents the path of travel followed by the respondent; storing said tracking data; collecting the tracking data from each of the monitoring devices; and analyzing said collected tracking data to determine if said plurality of respondents have been exposed to media displays by matching geo data based at least in part on said tracking data that represents the paths of travel followed by said plurality of respondents with media display locations to determine the effectiveness of the media displays at the media display locations.