Image sensor comprising entangled pixel

A depth sensor comprising at least one pixel, wherein the at least one pixel includes:

• a plurality of photo transistors each configured to receive a photo gate signal and integrate charges;
• a floating diffusion region configured to store the charges integrated by the plurality of photo transistors;
• and
• readout circuitry connected to the floating diffusion region.

A depth sensor comprising:

• a first pixel including a first photo transistor and a second photo transistor, the first photo transistor and the second photo transistor each configured to receive a first photo gate signal;
• a second pixel including a third photo transistor and a fourth photo transistor, the third photo transistor and the fourth photo transistor each configured to receive a second photo gate signal;
• a third pixel including a fifth photo transistor and a sixth photo transistor, the fifth photo transistor and the sixth photo transistor each configured to receive a third photo gate signal;
• a first photoelectric conversion element configured to,
• generate first charges corresponding to a received light signal,
• transfer the first charges to the second and third photo transistors, and
• be shared by the first and second pixels;
• and
• a second photoelectric conversion element configured to,
• generate second charges corresponding to the received light signal,
• transfer the second charges to the fourth and fifth photo transistors, and
• be shared by the second and third pixels.