A pixel circuit comprising: an overflow gate transistor electrically connected to a node ; a photodiode electrically connected to the node and a chassis ground, the photodiode is configured to receive background light , receive a combination of the background light and a demodulated light that is generated by a modulated light source and reflected from an object, integrate a background signal based on the background light that is received while the modulated light source is off, and integrate a combined signal based on the combination of the background light and the demodulated light; and two taps , each tap of the two taps is configured to store the background signal that is integrated, subtract the background signal from a floating diffusion, store the combined signal that is integrated at the floating diffusion, and generate a demodulated signal based on a subtraction of the background signal from the floating diffusion and a storage of the combined signal that is integrated at the floating diffusion, wherein the overflow gate transistor is electrically connected to a second node , and each tap of the two taps includes an injection capacitor electrically connected to the second node to store the background signal that is integrated when the modulated light source is off. an overflow gate transistor electrically connected to a node ; a photodiode electrically connected to the node and a chassis ground, the photodiode is configured to receive background light , receive a combination of the background light and a demodulated light that is generated by a modulated light source and reflected from an object, integrate a background signal based on the background light that is received while the modulated light source is off, and integrate a combined signal based on the combination of the background light and the demodulated light; and receive background light , receive a combination of the background light and a demodulated light that is generated by a modulated light source and reflected from an object, integrate a background signal based on the background light that is received while the modulated light source is off, and integrate a combined signal based on the combination of the background light and the demodulated light; and two taps , each tap of the two taps is configured to store the background signal that is integrated, subtract the background signal from a floating diffusion, store the combined signal that is integrated at the floating diffusion, and generate a demodulated signal based on a subtraction of the background signal from the floating diffusion and a storage of the combined signal that is integrated at the floating diffusion, wherein the overflow gate transistor is electrically connected to a second node , and each tap of the two taps includes an injection capacitor electrically connected to the second node to store the background signal that is integrated when the modulated light source is off. store the background signal that is integrated, subtract the background signal from a floating diffusion, store the combined signal that is integrated at the floating diffusion, and generate a demodulated signal based on a subtraction of the background signal from the floating diffusion and a storage of the combined signal that is integrated at the floating diffusion, wherein the overflow gate transistor is electrically connected to a second node , and each tap of the two taps includes an injection capacitor electrically connected to the second node to store the background signal that is integrated when the modulated light source is off. <EOS>