A method of producing a barcode includes collecting a set of information for producing the bar code, using an indicator to designate the set of information, encoding the indicator in the barcode, expanding the barcode to a particular size, and printing the bar code. ...http://www.google.com.au/patents/US20060036557?utm_source=gb-gplus-sharePatent US20060036557 - Selectively expanding and printing indicia information
