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

Claim 19:
20. An image detecting system comprising:
a light source configured to output an emission light based on a first clock signal;
a depth sensor comprising a pixel and configured to generate an image signal by sensing the emission light reflected from an object based on the first clock signal and a second clock signal complementary to the first clock signal during an integration period; and
a processor configured to calculate a distance between the depth sensor and the object based on the image signal,
wherein the pixel comprises:
a first photo transistor configured to integrate first charges based on a first photo gate signal that toggles during the integration period;
a second photo transistor configured to integrate second charges based on a second photo gate signal that toggles during the integration period;
a first transfer transistor connected with the first photo transistor, and configured to transfer the first charges to a first floating diffusion node based on a first transfer gate signal;
a second transfer transistor connected with the second photo transistor, and configured to transfer the second charges to a second floating diffusion node based on the first transfer gate signal; and
a switch connected to a node to which the first photo transistor, the second photo transistor, the first transfer transistor, and the second transfer transistor are connected, and configured to control a voltage to be applied to the first photo transistor, the second photo transistor, the first transfer transistor, and the second transfer transistor.