Liquid crystal dynamic barcode display
First Claim
1. 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.
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Accused Products
Abstract
A liquid crystal dynamic barcode display apparatus includes a liquid crystal layer having a plurality of elongated barcode display elements positioned in close side-by-side parallel relation formed thereon. The barcode display elements are activated in patterns to form a barcode pattern which can be scanned by a conventional barcode scanner. Spacing between adjacent barcode display elements is less than that which can be detected by the barcode scanner such that multiple adjacent barcode display elements can be activated to form relatively wide bars of the barcode symbology. Preferably, the display apparatus also includes alphanumeric display elements which are simultaneously activated to form human readable symbols corresponding to characters represented by the barcode pattern.
184 Citations
12 Claims
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1. 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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A thin panel 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:
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(a) a thin panel 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.
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8. 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:
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(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 cods 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) barcode start indicia corresponding to a barcode start pattern positioned at a start end of said barcode pattern; (e) barcode stop indicia corresponding to a barcode stop pattern positioned at a stop end of said barcode pattern opposite said start end of said barcode pattern; (f) said barcode start and stop patterns forming a complete readable barcode pattern in cooperation with the displayed barcode pattern; (g) 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 (h) 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. - View Dependent Claims (9, 10, 11, 12)
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Specification