Patent ID: 8362532

Claim:
A method of operating a pixel of an image sensor, the method comprising: switching a drain voltage on a drain voltage bus from a low drain voltage level to a high drain voltage level while providing a reset voltage having a low voltage level on a reset signal bus; supplying a reset pulse having a high voltage level on the reset signal bus after said switching a drain voltage to thereby forward bias a reset diode located between the reset signal bus and a floating diffusion node; supplying a transfer pulse to a transfer control bus after said supplying a reset pulse to thereby transfer a photo-generated charge from a photodetector to the floating diffusion node; and after said supplying a transfer pulse, switching the drain voltage on the drain voltage bus from the high drain voltage level to the low drain voltage level while providing the reset voltage having a high voltage level on the reset signal bus after said supplying a transfer pulse to thereby forward bias the reset diode and a set diode located between the floating diffusion node and the drain voltage bus.