Distance measuring device and distance measuring method

A distance measuring device comprising:

• a light source configured to generate pulsed light;
• a light source control circuit configured to control a generation timing of the pulsed light;
• a plurality of pixels arranged two-dimensionally, each of the pixels having a photoelectric conversion region configured to convert light into a charge, a plurality of charge readout regions provided close to the photoelectric conversion region and spaced apart from each other, and a plurality of control electrodes that are respectively provided to correspond to the photoelectric conversion region and the plurality of charge readout regions and configured to apply a plurality of control pulses for charge transfer between the photoelectric conversion region and the plurality of charge readout regions;
• a control signal generating circuit configured to generate the plurality of control pulses to be applied to the plurality of pixels;
• a plurality of driver circuits configured to respectively apply the plurality of control pulses generated by the control signal generating circuit to the plurality of control electrodes of a plurality of pixel groups divided from the plurality of pixels;
• a reference signal generating circuit configured to generate a reference pulse based on the plurality of control pulses generated by the control signal generating circuit;
• a plurality of time difference information generating circuits provided to correspond to the plurality of driver circuits and configured to generate time difference information corresponding to a time difference between one of the plurality of control pulses applied by each of the plurality of driver circuits and the reference pulse;
• and
• a calculation processor configured to calculate time information corresponding to a light time of flight for each of the plurality of pixels based on a plurality of charge amounts that are amounts of charges accumulated in the plurality of charge readout regions of the plurality of pixels, wherein
• the calculation processor deletes a jitter component from the time information calculated for the pixel group by using a plurality of pieces of the time difference information generated by the plurality of time difference information generating circuits.