Solid-state imaging device

A solid-state imaging device comprising:

• n first photoelectric conversion elements configured to photoelectrically convert incident light and generate first charge signals;
• n first reading circuits corresponding to the n first photoelectric conversion elements and configured to output signal voltages as first pixel signals, according to the first charge signals generated by the corresponding first photoelectric conversion elements;
• m second photoelectric conversion elements configured to photoelectrically convert incident light and generate second charge signals;
• m second reading circuits corresponding to the m second photoelectric conversion elements and configured to sequentially output second pixel signals according to changes in the second charge signals generated by the corresponding second photoelectric conversion elements, and
• a reading control circuit configured to control reading of the first pixel signals corresponding to the first photoelectric conversion elements arranged in predetermined reading regions within the first photoelectric conversion elements,
• wherein each of the m second reading circuits includes
• a detection circuit configured to detect a change over time in the second charge signal generated by the corresponding second photoelectric conversion element and output an event signal indicating the change when the change exceeding a predetermined threshold value is detected;
• and
• a pixel signal generation circuit configured to output the second pixel signal which is made by adding address information indicating a position at which the corresponding second photoelectric conversion element is arranged to the event signal,
• wherein the reading control circuit determines a region according to a position at which the second photoelectric conversion element corresponding to the address information included in the second pixel signal is arranged as the reading region for reading the first pixel signal, and causes each of the first reading circuits corresponding to each of the first photoelectric conversion elements arranged in the determined reading region to output the first pixel signal,
• wherein n is a natural number greater than or equal to 2, and
• wherein m is a natural number greater than or equal to 2.