**3.4 Code converters**

For the same discrete elements of information, there are several different codes available, resulting in the use of different codes for different digital systems. It's sometimes necessary to connect two digital blocks that use different coding systems. Hence a conversion digital circuit is designed and implemented between two digital systems to use information of one digital system to another. The input lines must provide the bit combinations of elements as designed by binary code A and the output is generated by the bit combinations of code B. This code converters circuit consisting of logic gates to perform this transformation operations. Some of the few code conversion techniques are discussed below.
