Design of Error Control Coding Schemes for Three Problems of Noisy Information Transmission, Storage and Processing

摘要

Using different coding schemes for different parts of messages or the so-called unequal error protection coding scheme gives different protection to different parts of messages. The second coding scheme is designed to be used as an automatically readable product identification code in an automated manufacturing environment. An approach towards error control coding for systems in which digit as well as symbol errors can occur, where a symbol is a position-fixed group of digits, is also described.