Systems and methods for an analog neural network calculating fft using current

Abstract

An analog circuit configured to receive a current signal for frequency decomposition, the first analog circuit comprising a first transistor including a first source configured to receive a first current, a first drain coupled to a third drain at a third transistor, and a signal input applied to a first gate, a voltage at the first gate determining how much current flows through the first transistor, a second transistor including a second source configured to receive the first current, a second drain coupled to a fourth drain at fourth transistor, and the signal input applied to a second gate, the voltage at the second gate determining how much current flows through the second transistor, the third transistor including a third source configured to receive a second current and the signal input applied to a third gate, the voltage at the third gate determining how much current flows through the third transistor, and the fourth transistor including a fourth source configured to receive the second current and the signal input applied to a first gate, the voltage at the first gate determining how much current flows through the fourth transistor.

Dependencies are inferred from the claim text.