Decoding method and circuit

Details Decoding method and circuit Decoding method and circuit

G - Physics

06

K

354/56

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

Patent

CA 1101555

DECODING METHOD AND CIRCUIT ABSTRACT OF THE DISCLOSURE A method and circuit for decoding coded electric signals from a scanner reading a coded label such as the Universal Product Code (UPC) label, establishes a plurality of counting gates based on a predetermined sequence or dis- crete signal transitions and counts a plurality of related pulse frequencies during the gating periods under control of the established counting gates. The counts are compared in a predetermined sequence to determine the relationship between their magnitudes (e.g., A < B; A ? B) and a coded signal generated indicative of the relationship. The said coded signals indicate the value of the coded information.

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