APPARATUSES AND METHODS INVOLVING TRANSDUCERS AND THEIR TUNING
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United States of America
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Mar 13, 2025
app pub date -
Jan 25, 2023
filing date -
Jan 25, 2023
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Abstract
In certain examples, methods and circuit-based apparatuses involve or are directed to a transducer to be operated via at least one resonance frequency of the transducer, and to a tunable circuitry (e.g., negative capacitance control and/or resistance control) to change the resonance frequency and/or a bandwidth around the resonance frequency. In more specific aspects, a tunable negative capacitance control may be used to change the resonance frequency and/or damping resistance control without degrading a degree of sensitivity provided by the transducer. Another example, specific to a method, involves: operating a transducer, coupled to a negative capacitance, at a resonance frequency of the transducer; and changing or setting a characteristic concerning the resonance frequency by using a tunable circuit to effect a change of the resonance frequency and/or a bandwidth around the resonance frequency.
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