An apparatus and method for the recognition of codes has a light transmitter for the transmission of light signals in the direction of a scanning region, a light receiver for the reception of a light signal remitted from the scanning region, and a control and evaluation unit for the control of the light...http://www.google.es/patents/US6536667?utm_source=gb-gplus-sharePatente US6536667 - Apparatus and a method for the identification of codes
Apparatus and a method for the identification of codes
