Patent ID: 6082620
Filing Date: 2000-07-04
Classification: G06K

Abstract:
A liquid crystal dynamic barcode display apparatus for visually displaying a dynamic barcode pattern readable by a scanning light beam having a selected beamwidth, said barcode pattern including relatively thick barcode elements and relatively thin barcode elements, and said apparatus comprising:(a) a liquid crystal display device including a plurality of relatively thin and elongated barcode display elements positioned in side by side parallel relation, said barcode display elements having a spacing between adjacent barcode display elements which is less than said beamwidth, each barcode display element capable of being activated individually;(b) decoder circuitry coupled to said barcode display elements and converting a numeric code input thereto into activation signals to thereby display a barcode pattern corresponding to said numeric code by activating a relatively greater number of adjacent barcode display elements to represent each thick barcode element and a relatively lesser number of adjacent barcode display elements to represent each thin barcode element;(c) input circuitry coupled to said decoder circuitry and conveying thereto a numeric code;(d) said apparatus being adapted to display a selected barcode symbology having a defined width ratio of a width of said relatively thick barcode element to said relatively thin barcode element; and(e) said decoder circuitry being configured to cause activation of said barcode display elements to display said barcode pattern at an element thickness ratio of said relatively greater number of adjacent barcode display elements to said relatively lesser number of adjacent barcode display elements which is substantially equal to said defined width ratio of said barcode symbology.