automated safety message system for buses, trains and other mobile applications comprised of a programmable computer chip with a recording device and amplifier, together with electrical circuitry used to control the frequency of a recorded playback message, and a person that detects when a vehicle is put in motion

'amplifi':23 'applic':11 'autom':1 'buse':6 'chip':17 'circuitri':27 'compris':12 'comput':16 'control':30 'detect':42 'devic':21 'electr':26 'frequenc':32 'messag':3,37 'mobil':10 'motion':49 'person':40 'playback':36 'programm':15 'put':47 'record':20,35 'safeti':2 'system':4 'togeth':24 'train':7 'use':28 'vehicl':45

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