| 摘要 |
A noise cancellation circuit has a first and second input for a first signal having a signal element and a noise element, and a second signal comprising at least a smaller amplitude of the said signal element, a first inverter arrangement for producing an inverted signal output that is an inverted form of one of the first and second signals, a first adder for adding the other signal and the inverted signal to produce an intermediate signal, an intermediate inverter arrangement for inverting the intermediate signal to produce an inverted intermediate signal, and a second adder for adding the other signal, the inverted signal and the inverted intermediate signal to produce an output.
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