Patent ID: 11936998
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The apparatus of claim 1, further comprising a sample-and-hold circuit selectively coupled between the charge sensing unit and the quantizer;
wherein the controller is configured to:
control the sample-and-hold circuit to couple with the charge sensing unit to sample a voltage output by the charge sensing unit;
at the beginning of the first time, control the sample-and-hold circuit to disconnect from the charge sensing unit to hold the sampled voltage as the first voltage, and control the quantizer to quantize the first voltage when the sample-and-hold circuit is disconnected from the charge sensing unit;
control the sample-and-hold circuit to couple with the charge sensing unit to sample a voltage output by the charge sensing unit; and
at the beginning of the second time, control the sample-and-hold circuit to disconnect from the charge sensing unit to hold the sampled voltage as the second voltage, and control the quantizer to quantize the second voltage when the sample-and-hold circuit is disconnected from the charge sensing unit.