A method, apparatus and computer-readable character set encodes a string of n-bit character codes corresponding to the data characters from an n-bit set of data characters in a data carrier as a string of m-bit character codes, where m is less than n. A method, apparatus and character set, decodes a...http://www.google.de/patents/US6422476?utm_source=gb-gplus-sharePatent US6422476 - Method, apparatus and character set for encoding and decoding data characters in data carriers, such as RFID tags
