Patent ID: 11943552
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 10:
11. A depth sensor comprising:
a pixel configured to generate an image signal based on a sensed light, the pixel comprising:
a first photo gate electrode configured to receive a first photo gate signal that toggles during an integration period to integrate first charges in a light detecting area;
a second photo gate electrode configured to receive a second photo gate signal that toggles during the integration period to integrate second charges in the light detecting area;
a first transfer gate electrode disposed to be spaced apart from the first photo gate electrode in a first direction, and configured to receive a first transfer gate signal to transfer the first charges to a first floating diffusion node;
a second transfer gate electrode disposed to be spaced apart from the second photo gate electrode in a direction facing away from the first direction, and configured to receive the first transfer gate signal to transfer the second charges to a second floating diffusion node; and
a substrate comprising the light detecting area, the first floating diffusion node, and the second floating diffusion node,

wherein a negative voltage is applied to the substrate during the integration period.