Photoelectric conversion device

Abstract

A photoelectric conversion device includes: a light receiving unit configured to generate a light reception signal according to incident light by photoelectric conversion; a time-to-digital conversion unit configured to perform a time-to-digital conversion in which an operation of outputting a time count value indicating an elapsed time from light emission of a light source device to input of the light reception signal is periodically performed every time a predetermined period elapses in one ranging period; a weight determination unit configured to acquire a count value indicating the number of times of the time-to-digital conversion performed in the one ranging period and output a weight value based on the count value; and a frequency distribution generation unit configured to use the weight value to add a frequency in generation of a frequency distribution of the count value.

Dependencies are inferred from the claim text.