Label find method and circuit

Details Label find method and circuit Label find method and circuit

G - Physics

06

K

354/56

G06K 7/10 (2006.01) G06K 7/016 (2006.01) G06K 19/06 (2006.01)

Patent

CA 1101556

LABEL FIND METHOD AND CIRCUIT ABSTRACT OF THE DISCLOSURE A method and circuit for finding the beginning of valid coded information from a scanner reading a label such as the Universal Product Code (UPC) label establishes a plurality of counting gates based on a predetermined sequence of discrete signal transitions and counts a plurality of related pulse frequencies during the gating periods under control of the established counting gates. The accumulated counts are compared in a predetermined sequence to determine whether selected counts when compared bear a predetermined relationship to each other and a code generated indicative of the relationship which indicates the beginning of valid label data or invalid label data on a continuous basis

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