Handling of information with coset codes

Claim 1

APPARATUS FOR HANDLING AN INFORMATION WORD WHICH COMPRISES: A SOURCE OF SAID INFORMATION WORD; MEANS FOR CONVERTING SAID INFORMATION WORD TO A GROUP CODEWORD; MEANS FOR CONVERTING SAID GROUP CODEWORD TO A COSET CODEWORD; A CHANNEL RECEPTIVE OF SAID COSET CODEWORD; MEANS RECEPTIVE OF SAID COSET CODEWORD FROM SAID CHANNEL AS PERTURBATED THEREBY TO PROVIDE A PERTURBATED GROUP CODEWORD FROM SAID RECEIVED PERTURBATED COSET CODEWORD; AND DECODER MEANS FOR RECONSTRUCTING SAID ORIGINAL INFORMATION WORD FROM SAID PERTURBATED CODEWORD INCLUDING FIRST AND SECOND DIVIDER SHIFT REGISTERS; A STORAGE REGISTER; A SYNDROME OR PARTITY CHECK SEQUENCE SHIFT REGISTER WHEREBY EACH GROUP CODEWORD IS ESTABLISHED IN SAID STORAGE REGISTER AND EACH ALTERNATE GROUP CODEWORD IS ESTABLISHED IN SAID FIRST AND SECOND DIVIDER SHIFT REGISTERS, RESPECTIVELY, FIRST AND SECOND AND UNIT MEANS CONNECTED TO SAID FIRST AND SECOND DIVIDER SHIFT REGISTERS; A MODULO-2 ADDER UNIT CONNECTED TO SAID STORAGE SHIFT REGISTER AND SAID AND UNITS TO PROVIDE CORRECTION OF ERRORS IN EACH SAID GROUP CODEWORD ESTABLISHED IN SAID STORAGE REGISTER; SAID MODULO-2 ADDER BEING CONNECTED TO SAID SYNDROME SHIFT REGISTER, SAID SYNDROME SHIFT REGISTER PROVIDING SAID INFORMATION WORD.