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This paper presents single-electron arithmetic circuits for sigma-delta domain signal processing. Sigma-delta domain signal processing is one of hardware architectures which have tolerance for transient device errors. Results of circuit simulation show that the errors never trigger out-of-control state of the circuits and random surge of their outputs.
This paper describes piecewise linear circuits operating directly on first-order multi-level and second-order binary sigma-delta modulated signals. The sigma-delta modulated signal sequences contain subsequences which reflect whether the inputs to sigma-delta modulators are positive or negative. We build circuits performing absolute operation with detectors of the subsequences. Using the absolute...
This paper describes adder and multiplier circuits operating directly on first-order multi-level and second-order binary sigma-delta modulated signals. We first show that binary sorting networks with delayed feedback loops can be used as discrete variable digital sigma-delta modulators. We then build the adders based on the sorting networks. The circuit design scheme for the adder is independent of...
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