Pulse Train

Pulse train describes current pulses which are triggered at the scanner's receiver by reflected light returned from dark and light symbols on the barcode label (e. g. bars and spaces (space)). The value of the current pulse becomes greater as the number of reflected light beams is increased. The individual current pulses are measured and evaluated by the decoder, and are then assigned to corresponding information characters (information character). Further data processing is generally accomplished with the help of a computer.