Vehicle surveillance camera system actuated upon passenger entry

Claim 1

In combination with a vehicle, said vehicle having an exterior wall which encloses an internal compartment, a passenger door formed within said exterior wall, said passenger door being movable from a closed position to an open position, said closed position being when said passenger door is flush with said exterior wall preventing access through said passenger door into said internal compartment, said open position being when said passenger door is located transverse to said exterior wall permitting access into said internal compartment, a security system comprising: a plurality of cameras mounted in conjunction with said vehicle, one of said cameras comprising a door camera in position to observe the area of said door located within said internal compartment; and all of said cameras having an output signal which is transmitted to a multiplexer and into a video recorder, said multiplexer to cause the outputs of all said cameras to be placed on a single frame of said video recorder, said video recorder including an audio recorder, with said passenger door in said closed position said video recorder recording said output signal of each said camera at a first playback speed, with said passenger door in said open position said video recorder recording said output signal of only said door camera at a second playback speed, said first playback speed being substantially slower than said second playback speed, said first playback speed not including sound, said second playback speed including sound.