Pixels with multiple operating modes, and associated systems, devices, and methods

A pixel arrangement disposed in a semiconductor material, the pixel arrangement comprising:

• a pixel including—
• a floating diffusion disposed in the semiconductor material at a central region of the semiconductor material;
• a plurality of photosensors disposed in the semiconductor material at locations distributed about the floating diffusion;
• a plurality of first transfer transistors, wherein each first transfer transistor of the plurality of first transfer transistors (a) is disposed in the semiconductor material at a location between the floating diffusion and a respective photosensor of the plurality of photosensors, and (b) is configured to selectively couple the respective photosensor to the floating diffusion;
• a plurality of event vision sensor (EVS) connections disposed at least partially in the semiconductor material and usable to couple a respective one of the plurality of photosensors to EVS readout circuitry, wherein the plurality of EVS connections include a first EVS connection and a second EVS connection are diagonally offset from one another;
• and
• a plurality of second transfer transistors, wherein each second transfer transistor of the plurality of second transfer transistors (a) is disposed in the semiconductor material at a location between a corresponding one of the plurality of photosensors and a corresponding one of the plurality of EVS connections, and (b) is configured to selectively couple the corresponding one of the plurality of photosensors to the corresponding one of the plurality of EVS connections.

A pixel, comprising:

• a first photosensor configured to photogenerate first charge based at least in part on first light incident on the first photosensor;
• a second photosensor different from the first photosensor and configured to photogenerate second charge based at least in part on second light incident on the second photosensor;
• a floating diffusion configured to receive the first charge from the first photosensor and the second charge from the second photosensor;
• a first event vision sensor (EVS) connection usable to couple the pixel to first EVS readout circuitry and configured to receive the first charge from the first photosensor;
• a second EVS connection usable to couple the pixel to second EVS readout circuitry and configured to receive the second charge from the second photosensor;
• and
• a mode switch including—
• a first switch selectively coupling the first photosensor to the floating diffusion,
• a second switch selectively coupling the first photosensor to the first EVS connection independently from the second EVS connection,
• a third switch selectively coupling the second photosensor to the floating diffusion, and
• a fourth switch selectively coupling the second photosensor to the second EVS connection independently from the first EVS connection,
• wherein the mode switch is controllable to transition the pixel between (i) a first mode in which the pixel is usable to generate a first output corresponding to intensity information of the first light, the second light, or both the first light and the second light;
• and (ii) a second mode in which the pixel is usable to generate a second output corresponding to contrast information of the first light, the second light, or both the first light and the second light.