US Patent 9501878 Vehicle event playback apparatus and methods

Vehicle event data playback systems described herein may provide users means for reviewing events recorded by a vehicle event recorder. Circumstances relating to vehicle operation may be visually presented in these playback systems. Video playback from multiple recording devices may be synchronized with each other and/or with information related to the operation of the vehicle during the recorded events to affect a presentation of information related to operation of the vehicle. A user may be presented with many data types in graphical and/or intuitive arrangements.