Patent ID: 11943561
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. The apparatus of claim 14, wherein:
the at least a part of the first charge is a first part of the first charge;
the at least a part of the second charge is a first part of the second charge;
the first photodiode is configured to:
accumulate a second part of the first charge as first residual charge until the first photodiode becomes saturated by the first residual charge; and
output the first part of the first charge as first overflow charge to the first charge sensing unit when the first photodiode is saturated by the first residual charge;

the second photodiode is configured to:
accumulate a second part of the second charge as second residual charge until the second photodiode becomes saturated by the second residual charge; and
output the first part of the second charge as second overflow charge to the second charge sensing unit when the second photodiode is saturated by the second residual charge; and

the controller is configured to:
generate, using the quantizer, the first value based on measuring the first time it takes for the first quantity of the first overflow charge to exceed the first threshold;
generate, using the quantizer, the second value based on measuring a quantity of the first overflow charge or a quantity of the first residual charge;
generate, using the quantizer, the third value based on measuring the second time it takes for the second quantity of the second overflow charge to exceed the second threshold; and
generate, using the quantizer, the fourth value based on measuring a quantity of the second overflow charge or a quantity of the second residual charge.