Cover photograph

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Parametric Frequency Conversion and Logic Operations Using Electromechanical Resonators
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We realize a logic device in an electromechanical resonator. Two inputs, A and B, are applied to one electrode as alternate voltage of different frequencies, fA and fB, respectively. The signals are transferred to mechanical oscillations which are mixed and frequency converted to fC and fD. These two outputs are obtained when both (for fC) or just one (for fD) of the inputs are active which corresponds to logicals (A and B) and (A or B) respectively. Other examples of multiple logic operation are also shown. (Page 27)



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