Circuitry and method for reducing environmental noise

A circuitry, comprising:

• a field programmable gate array (FPGA) board configured to generate a first digital signal, a second digital signal, and a clock signal;
• a first digital-to-analog converter (DAC) configured to receive the first digital signal and configured to convert the first digital signal into a first input signal;
• a second DAC configured to receive the second digital signal and configured to convert the second digital signal into a second input signal;
• a signal correlated circuit connected to the first DAC to receive the first input signal and connected to the second DAC to receive the second input signal, wherein the signal correlated circuit is configured to generate a first output signal and a second output signal;
• a comparator comprising a first input terminal connected to the signal correlated circuit to receive the first output signal, a second input terminal connected to the signal correlated circuit to receive the second output signal, and an output terminal configured to generate an output signal in response to the first output signal and the second output signal;
• and
• a buffer connected to the FPGA board and the comparator, wherein the buffer is configured to generate a buffered signal associated to the clock signal to the comparator,
• wherein the first input signal is independent from the second input signal, wherein the FPGA board is configured to adjust the first input signal and the second input signal based on a feedback signal associated with the output signal of the comparator.

A method, comprising:

• receiving, by a signal correlated unit, a first signal and a second signal, wherein the first signal is independent from the second signal;
• generating, by the signal correlated unit, a third signal and a fourth signal in response to the first signal and the second signal, wherein the third signal and the fourth signal are formed by partial of the first signal and the second signal;
• transmitting, by the signal correlated unit, the third signal and the fourth signal to a comparator, wherein the third signal and the fourth signal is correlated with each other;
• generating, by the comparator, a fifth signal in response to the third signal and the fourth signal;
• generating, by a receiver unit, a feedback signal in response to the fifth signal, wherein the feedback signal is a boosted or bucked signal depending on a logical value of the fifth signal;
• and
• adjusting the first signal and the second signal based on the feedback signal.