| CPC H04N 25/773 (2023.01) [H04N 25/771 (2023.01); G01S 17/14 (2020.01)] | 15 Claims |
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1. A photodetection device comprising:
a pulse responder that generates a pulse signal in response to light incidence;
an analog counter that generates an analog first count value by performing count processing on a basis of the pulse signal;
a resetter that resets a first count value when the first count value exceeds a first threshold, wherein the resetter outputs, when the first count value exceeds the first threshold, a digital signal indicating that the first count value exceeds the first threshold;
a first digital counter that generates a digital second count value by performing count processing on the digital signal outputted from the resetter;
an A/D converter that generates a digital third count value by performing A/D conversion on the first count value; and
switches at which an output of the digital signal to the first digital counter and an output of the first count value to the A/D converter are controlled by separate control signals.
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