APPARATUS FOR READING BAR CODE AND METHOD FOR THE SAME

摘要

PURPOSE: A bar code reading apparatus is provide to execute character decoding without being affected by non-uniformity in width of each character in a bar code and a method for the same. CONSTITUTION: A bar code reading apparatus for decoding a character from a bar code comprises a reader for reading a bar code expressing a plurality of characters, and a CPU for decoding the characters according to a result of reading by the reader. A ratio between a character length(CY) of an already decoded character(E2) and a length(CZ) of a character(E7) to be decoded is calculated. When this ratio is greater than a threshold valve, a black bar width B1 and black bar width(B2) are corrected according to a reference black bar width(X). The CPU decodes the character(E7) to be decoded according to the corrected black bar width(B1) and black bar width(B3).