Patent ID: 11927475
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A method comprising:
generating, a photodiode, charge in response to incident light within an exposure period;
performing, by a quantizer comprising a comparator and a memory, at least one of a first quantization operation to generate a first digital output or a second quantization operation to generate a second digital output; and
outputting, by the quantizer and based on a range of an intensity of the incident light, one of the first digital output or the second digital output to represent the intensity of the incident light,
wherein the first quantization operation comprises comparing, using the comparator, a first voltage representing at least a first part of the charge during the exposure period against one or more threshold voltages to generate one or more first comparison results, and storing the first digital output in the memory based on the one or more first comparison results; and
wherein the second quantization operation comprises comparing, using the comparator, a second voltage representing at least a second part of the charge after the exposure period against a ramping threshold voltage to generate a second comparison result, and storing the second digital output in the memory based on the second comparison result.