Patent ID: 8817151

Claim:
A solid-state imaging device comprising: a first photoelectric conversion portion; a floating diffusion node; a first transfer transistor configured to transfer an electron generated at the first photoelectric conversion portion to the floating diffusion node; an amplifying transistor configured to output a signal based on an amount of charge of the floating diffusion node; a voltage-controlled node; and a voltage control portion configured to control a voltage of the voltage-controlled node, wherein the amplifying transistor is configured to output a first signal in a first state where a voltage of the floating diffusion node is reset, wherein the amplifying transistor is further configured to output a second signal in a second state where the electron is transferred to the floating diffusion node, wherein the voltage-controlled node is different from a node to which a voltage configured to set a conductive state of the first transfer transistor is supplied, wherein the voltage-controlled node is coupled to the floating diffusion node via a coupling capacitance, wherein the voltage control portion is configured to control the voltage of the voltage-controlled node so that: the voltage of the voltage-controlled node is a first voltage when the amplifying transistor outputs the first signal before turning on of the first transfer transistor, the voltage of the voltage-controlled node is a second voltage during at least a portion of a period from turning on of the first transfer transistor to turning off of the first transfer transistor, and the voltage of the voltage-controlled node is a third voltage when the amplifying transistor outputs the second signal after turning off of the transfer transistor, and wherein the second voltage is higher than each of the first voltage and the third voltage.