Application of bar codes that contain location information onto outdoor media structures. Used in computerized proof of performance systems.
A method of encrypting data for fast and faultless readability. Bar codes are used to enhance timely and accurate transfer of data from printed medium to a computer system. Bar codes may represent letters or numbers or both.
Encoding information using a series of black and white stripes. Bar codes are based on a series of parallel black bars and white spaces. New technologies include so-called "two-dimensional" bar codes that can store much more information than traditional one-dimensional bar codes.