Patent ID: 11902686
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A photodetection device comprising:
a first pixel that is configured to generate a first pixel signal;
a reference signal generator that is configured to generate a reference signal;
a first converter that includes a first buffer circuit and a first comparison circuit and that is configured to convert the first pixel signal into a digital code, the first buffer circuit configured to output a first signal corresponding to the reference signal from an output terminal, and the first comparison circuit configured to perform a comparison operation on a basis of the first pixel signal and the first signal;
a second pixel that is configured to generate a second pixel signal; and
a second converter that includes a second buffer circuit and a second comparison circuit and is configured to convert the second pixel signal into a digital code, the second buffer circuit configured to output a second signal corresponding to the reference signal from an output terminal, and the second comparison circuit configured to perform the comparison operation on a basis of the second pixel signal and the second signal; and
a variable resistor having a first terminal coupled to the output terminal of the first buffer circuit, and a second terminal coupled to the output terminal of the second buffer circuit.