Photoelectric conversion apparatus with scanning operating modes
A photoelectric conversion apparatus comprising: pixels; L (L≥3) vertical signal lines disposed on each pixel column; M (M≥2) selection circuits disposed in each pixel, each of the selection circuits respectively connecting one of the pixels to a different vertical signal line; a vertical scanning circuit configured to scan the selection circuits; and a control unit. The control unit sets first operation mode in which the vertical scanning circuit performs a single read scanning operation at a time, and a second operation mode in which the vertical scanning circuit performs multiple read scanning operations at a time. In the first operation mode, the control unit uses first selection circuit out of the M selection circuits for scanning operation. In the second operation mode, the control unit uses a second selection circuit, which is different from the first selection circuit, out of the M selection circuits for scanning operation.
1 . A photoelectric conversion apparatus comprising:
pixels disposed two-dimensionally in a row direction and a column direction;
an L number of (L is 3 or greater integer) vertical signal lines disposed on each pixel column;
an M number of (M is 2 or greater integer) selection circuits disposed in each pixel, each of the selection circuits respectively connecting one of the pixels to a different vertical signal line;
a vertical scanning circuit configured to scan the selection circuits; and
a control unit,
wherein the control unit is configured to set a first operation mode in which the vertical scanning circuit performs a single read scanning operation at a time, and a second operation mode in which the vertical scanning circuit performs a plurality of read scanning operations at a time,
wherein, in the first operation mode, the control unit is configured to perform the single read scanning operation using a first selection circuit out of the M number of selection circuits,
wherein, in the second operation mode, the control unit is configured to perform an operation which is one of the plurality of read scanning operations using a second selection circuit, which is different from the first selection circuit, out of the M number of selection circuits,
wherein, in the first operation mode, the single read scanning operation is performed for a range from a first row to a second row,
wherein, in the second operation mode, the operation is performed for a third row and a fourth row, and
wherein the third row and the fourth row are located between the first row and the second row.
2 . The photoelectric conversion apparatus according to claim 1 ,
wherein the plurality of read scanning operations in the second operation mode include a first read scanning operation and a second read scanning operation, and
wherein a cycle of the first read scanning operation is longer than a cycle of the second read scanning operation.
3 . The photoelectric conversion apparatus according to claim 1 ,
wherein the plurality of read scanning operations in the second operation mode include a first read scanning operation and a second read scanning operation, and
wherein the second read scanning operation is performed for a plurality of times while the first read scanning operation is performed once.
4 . The photoelectric conversion apparatus according to claim 1 ,
wherein the plurality of read scanning operations in the second operation mode include a first read scanning operation and a second read scanning operation, and
wherein a pixel row to be read in the first read scanning operation is different from that to be read in the second read scanning operation.
5 . The photoelectric conversion apparatus according to claim 4 , wherein a number of pixel rows to be read in the first read scanning operation is larger than a number of pixel rows to be read in the second read scanning operation.
6 . The photoelectric conversion apparatus according to claim 1 ,
wherein the first operation mode includes a first sub-mode in which a plurality of pixel rows are read without performing analog addition on the vertical signal line, and a second sub-mode in which a plurality of pixel rows are read with performing analog addition on the vertical signal line,
wherein a number of the selection circuits disposed in one pixel is at least 3,
wherein, in the first sub-mode, the read scanning operation is performed for each vertical signal line using any one of the selection circuits,
wherein, in the second sub-mode, the read scanning operation is performed for each vertical signal line using a plurality of selection circuits including the selection circuit used in the first sub-mode, and
wherein, in the second operation mode, the read scanning operation is performed using a selection circuit other than the selection circuits used in the second sub-mode.
7 . The photoelectric conversion apparatus according to claim 1 ,
wherein each of the pixels includes two photodiodes and a floating diffusion connected to the two photodiodes, and
wherein the selection circuit is configured to connect the floating diffusion and the vertical signal line.
8 . The photoelectric conversion apparatus according to claim 1 , further comprising:
a first substrate on which the pixels are disposed, and
a second substrate on which a signal processing unit that processes signals read from the pixels is disposed, wherein the first substrate and the second substrate are stacked.
9 . The photoelectric conversion apparatus according to claim 1 ,
wherein each of the pixels includes a photoelectric conversion element configured to receive an incident light.
10 . A photoelectric conversion system comprising:
the photoelectric conversion apparatus according to claim 1 ; and
a signal processing unit configured to process signals outputted from the photoelectric conversion apparatus,
wherein each of the pixels includes a photoelectric conversion element configured to receive an incident light, and
wherein the signal processing unit generates a first image using the signals read out in the first operation mode, and generates a second image using the signals read out in the second operation mode.
11 . A photoelectric conversion system comprising:
the photoelectric conversion apparatus according to claim 1 ; and
a signal processing unit configured to process signals outputted from the photoelectric conversion apparatus.
12 . A mobile body comprising:
the photoelectric conversion apparatus according to claim 1 ;
a moving device;
a processing device configured to acquire information from signals outputted from the photoelectric conversion apparatus; and
a control device configured to control the moving device based on the information.