Patent ID: 6302330
Filing Date: 2001-10-16
Classification: G06K

Abstract:
A device for detecting a packaging material strip comprising:first and second detectors each responsive to changes between light and dark areas, said first and second detectors each outputting a signal upon change between dark and light areas;said first and second detectors responsive to a plurality of light and dark areas and each outputting a detector signal upon a detection of a dark or light areas in a corresponding sequence;a comparator electrically connected to said first and second detectors, said comparator receiving signals from each of said first and second detectors and comparing each detected signal with a predetermined sequence of signals and generating an outputting a compared signal; anda plurality of actuators electrically connected to said comparator, said compared signal received by said plurality of actuators upon equivalence of the detected signals with the predetermined sequence of signals activating said plurality of actuators which manipulate the material strip.