1. A noise reducing apparatus, comprising: a circuit to generate at least partially non-periodic noise; and an anti-circuit to generate at least partially non-periodic anti-noise to counteract at least a portion of the at least partially non-periodic noise generated by the circuit without sensing the at least partially non-periodic noise, wherein a circuit structure of the anti-circuit is configured to generate the at least partially non-periodic anti-noise that is substantially opposite to the at least partially non-periodic noise.