| http://www.w3.org/ns/prov#value | - The logic circuits 22-k from the second stage onward (where k is an integer greater than or equal to two) output an exclusive OR OCLK(k) of the output signal CLKk of the delay circuit 10-k at a k-th stage and an output signal OCLK(k???1) of the logic circuit 22-(k???1) at an immediately prior stage.
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