Method and apparatus for distinguishing a preferred bar code or the like

摘要: A bar code reader utilizing a two dimensional image capture optical system, includes method and apparatus for distinguishing preferred out plurality of codes within the field view reader. The placing special pattern proximate to be distinguished. In one embodiment, predetermined at location orientation relative is placed on label. means detecting presence after has been located. first locates each codes, then checks located determine whether present. If detected, corresponding scanned decoded as code.