| http://www.w3.org/ns/prov#value | - In a method of correcting errors in data arranged in rows and columns and including errors of a first type detectible by a parity check and errors of a second type escaping detection by a parity check in their positions, the improvement comprising in combination:subjecting said data to a first parity check; correcting errors of said first type with the aid of said first parity check; shifting said
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