Bar code reading method, bar code reading apparatus, and program thereof

摘要

A designated code has been set at a predetermined digit position of a main portion of a bar code that contains a supplemental portion. A main portion analyzer analyzes the main portion. A presence/absence determiner determines whether or not the designated code has been set at the predetermined digit position of the main portion. If the designated code has been set, the supplemental portion analyzer performs an analyzing process until the analyzed result of the supplemental portion is obtained or until a predetermined time period elapses. If the analyzed result of the supplemental portion has been obtained, a combiner combines the analyzed results of the main portion and the supplemental portion and outputs the combined result. If the analyzed result of the supplemental portion has not been obtained, the combiner outputs only the analyzed result of the main portion.