US Patent 9369762 Audience measurement systems, methods and apparatus

Example method disclosed herein to determine source information for media presented by a media device include identifying successive media segments of the presented media from an audio signal received from the media device, respective media segments corresponding to respective durations of uninterrupted presentation of the media by the media device. Disclosed example methods also include identifying a first group of remote control commands detected wirelessly in a first time interval prior to a start of a first one of the media segments. Disclosed example methods further include determining source information for the first one of the media segments based on the first group of remote control commands.