Error checking system using residue redundancy

Claim 1

INFORMATION HANDLING APPARATUS ADAPTED FOR HANDLING NUMBERS WITHIN A GIVEN NUMBER FIELD, COMPRISING INPUT MEANS RESPONSIVE TO AN INPUT NUMBER FOR PROVIDING A PLURALITY OF REMAINDER SIGNALS EACH OF WHICH REPRESENTS THE REMAINDER AFTER DIVISION OF THE INPUT NUMBER BY A DIVISOR, AND EACH DIVISOR BEING PRIME RELATIVELY TO EVERY OTHER DIVISOR, THE NUMBER OF REMAINDER SIGNALS BEING GREATER THAN THE NUMBER SUFFICIENT TO DETERMINE UNIQUELY ANY NUMBER IN SAID NUMBER FIELD SO THAT AT LEAST ONE OF SAID REMAINDER SIGNALS IS REDUNDANT, MEANS RESPONSIVE TO SAID SIGNALS TO PROVIDE A PLURALITY OF OUTPUT REMAINDER SIGNALS EQUAL IN NUMBER TO SAID INPUT REMAINDER SIGNALS AND REPRESENTING A NUMBER IN SAID NUMBER FIELD, AND MEANS FOR DECODING SAID OUTPUT REMAINDER SIGNALS TO INDICATE THE NUMBER REPRESENTED THEREBY, SAID DECODING MEANS INCLUDING MEANS RESPONSIVE TO A REDUNDANT REMAINDER SIGNAL FOR DETECTING AN INCORRECT OUTPUT REMAINDER SIGNAL AND FOR PRODUCING SAID INDICATION WITHOUT REGARD TO SUCH INCORRECT OUTPUT REMAINDER SIGNAL.