Markov processor for context encoding from given characters and for character decoding from given contexts

Abstract From the Canadian patent

Abstract In an apparatus for generating variable length codewords c(ai) and c(aj) responsive to corresponding fixed length codewords b(ai) and b(aj), where ai and aj are source alphabet characters ai.epsilon.A1 and aj.epsilon.A2,ambiguity arises whenever any fixed length character to be encoded can instantaneously represent source characters ai and aj drawn from two or more dissimilar alphabets i.e. A1 or A2. This is resolved by the inclusion of a Markov processor in combination with the apparatus. The processor establishes the point in the sequence when transitions occur between fixed length characters in one alphabet to fixed length characters in another alphabet by the message context. …