Solid-state imaging apparatus, driving method therefor, and imaging system

A driving method of a solid-state imaging apparatus comprising a pixel unit including:

• a first pixel having a higher sensitivity to green light among red, green, blue and infrared lights, and configured to output a first pixel signal,
• a second pixel having a higher sensitivity to the red light among the red, green, blue and infrared lights, and configured to output a second pixel signal,
• a third pixel having a higher sensitivity to the blue light among the red, green, blue and infrared lights, and configured to output a third pixel signal,
• a fourth pixel having a higher sensitivity to the infrared light among the red, green, blue and infrared lights, and configured to output a fourth pixel signal,
• a first pixel group including a plurality of the first pixels,
• a second pixel group including a plurality of the second pixels, and
• a third pixel group including a plurality of the third pixels, the method comprising:
• outputting first pixel signals from the first pixel at a first interval;
• outputting second pixel signals from the second pixel at a second interval;
• outputting third pixel signals from the third pixel at a third interval;
• and
• outputting fourth pixel signals from the fourth pixel at a fourth interval,
• wherein the fourth interval is shorter than at least one of the first interval, the second d interval and the third interval,
• wherein the first interval is shorter than the second interval and the third interval, and
• wherein:
• during a first period, the first pixels in the first pixel group output first pixel signals, while second pixels of a part of the plurality of the second pixels in the second pixel group output second pixel signals and third pixels of a part of the plurality of the third pixels in the third pixel group output third pixel signals,
• during a second period different from the first period, the first pixels in the first pixel group output the first pixel signals,
• during the second period, second pixels of the other part of the plurality of the second pixels in the second pixel group output second pixel signals, and
• during the second period, third pixels of the other part of the plurality of the third pixels in the third pixel group output third pixel signals.

A driving method of a solid-state imaging apparatus comprising a pixel unit including:

• a first pixel having a higher sensitivity to green light among red, green, blue and infrared lights, and configured to output a first pixel signal,
• a second pixel having a higher sensitivity to the red light among the red, green, blue and infrared lights, and configured to output a second pixel signal,
• a third pixel having a higher sensitivity to the blue light among the red, green, blue and infrared lights, and configured to output a third pixel signal, and
• a fourth pixel having a higher sensitivity to the infrared light among the red, green, blue and infrared lights, and configured to output a fourth pixel signal, the method comprising:
• outputting first pixel signals from the first pixel at a first interval;
• outputting second pixel signals from the second pixel at a second interval;
• outputting third pixel signals from the third pixel at a third interval;
• outputting fourth pixel signals from the fourth pixel at a fourth interval;
• and
• generating an image signal from the first, second and third signals,
• wherein the fourth interval is shorter than at least one of the first interval, the second interval and the third interval,
• wherein the first interval is shorter than the second interval and the third interval
• wherein
• the generating the image signal is performed at a fifth interval, and
• wherein the first interval and the fifth interval are shorter than the second interval and the third interval.

A driving method of a solid-state imaging apparatus comprising a pixel unit including:

• a first pixel having a higher sensitivity to green light among red, green, blue and infrared lights, and configured to output a first pixel signal,
• a second pixel having a higher sensitivity to the red light among the red, green, blue and infrared lights, and configured to output a second pixel signal,
• a third pixel having a higher sensitivity to the blue light among the red, green, blue and infrared lights, and configured to output a third pixel signal, and
• a fourth pixel having a higher sensitivity to the infrared light among the red, green, blue and infrared lights, and configured to output a fourth pixel signal, the method comprising:
• outputting first pixel signals from the first pixel at a first interval;
• outputting second pixel signals from the second pixel at a second interval;
• outputting third pixel signals from the third pixel at a third interval;
• and
• outputting fourth pixel signals from the fourth pixel at a fourth interval,
• wherein the fourth interval is shorter than at least one of the first interval, the second interval and the third interval,
• wherein the first interval is shorter than the second interval and the third interval
• wherein the fourth interval is shorter than each of the first interval, the second interval, and the third interval.