Patent: 6,470,268: "receiving and storing location information and providing navigational information to facilitate travel to a desired location is disclosed. Geographic location information is entered into the system, and a two dimensional representation of information, or glyph, is output that contains navigational information. For example, longitude and latitude information for a delivery address can be translated into a bar code. The bar code can be scanned by a portable bar code reader by a delivery person for the secure transfer of delivery address information. "