| CPC H04N 25/77 (2023.01) [H01L 27/14609 (2013.01); H04N 25/745 (2023.01); H04N 25/75 (2023.01)] | 18 Claims |
|
1. An image sensor comprising:
a pixel including
a photoelectric conversion device configured to convert sensed light into charges and to store the charges prior to providing the charges to a floating diffusion node, and
the floating diffusion node configured to store the charges provided from the photoelectric conversion device;
a timing generator configured to
generate a reset signal including, prior to a light-sensing period, a first reset signal pulse for enabling an erasing of charges stored in at least one of the photoelectric conversion device and the floating diffusion node, and
generate a transfer signal including, subsequent to the light-sensing period, at least two transfer signal pulses, each transfer signal pulse enabling a moving of charges stored in the photoelectric conversion device to the floating diffusion node; and
a readout circuit configured to generate output data by summing results of performing at least two samplings for the floating diffusion node based on the at least two transfer signal pulses,
wherein the reset signal and the transfer signal each include a first logical level and a second logical level,
wherein the at least two transfer signal pulses include a first transfer signal pulse and a second transfer signal pulse, and
wherein the pixel is configured to:
transfer a first subset of the charges stored in the photoelectric conversion device to the floating diffusion node based on the first transfer signal pulse, and
transfer a second subset of the charges stored in the photoelectric conversion device to the floating diffusion node based on the second transfer signal pulse.
|