Methods and apparatus to monitor
US8549552 Patents
4,751,512 A 6/1988 Longaker Methods and apparatus to monitor media exposure invehicles are disclosed. An example implementation includes collect ing audience measurement data with a media monitoring device fixed in a vehicle and transmitting the audience mea Surement data from the media monitoring device to a shuttle located within the vehicle, the shuttle being incapable of collecting audience measurement data independent of the media monitoring device.
18 claims. 90,614 characters of text.