Accessory for smart devices with privacy features and a method for controlling the same

Abstract

An accessory for a smart device and a method from controlling the same includes at least one transducer per receiver of the smart device, each transducer physically located in close proximity to a physical location of each receiver. An amplifier outputs noisy frequency signals to each transducer at a power level sufficient to cause the signal-to-noise ratio at each receiver to be negative. A controller outputs the noisy frequency signals for each transducer to the amplifier according to a mode, the controller randomly hopping the noisy frequency signals for each transducer in a manner sufficient to prevent audio processing software associated with each receiver from being able to identify and cancel the noisy frequency signals.

Dependencies are inferred from the claim text.