Solid state imaging device, method of controlling solid state imaging device, and program for controlling solid state imaging device
A solid state imaging device includes: a pixel array unit that has a plurality of pixels 2-dimensionally arranged in a matrix and a plurality of signal lines arranged along a column direction; A/D conversion units that are provided corresponding to the respective signal lines and convert an analog signal output from a pixel through the signal line into a digital signal; and a switching unit that switches or converts the analog signal output through each signal line into a digital signal using any of an A/D conversion unit provided corresponding to the signal line through which the analog signal is transmitted, and an A/D conversion unit provided corresponding to a signal line other than the signal line through which the analog signal is transmitted.
1. An imaging device comprising:
a plurality of pixels including a first pixel configured to output a first pixel signal, a second pixel configured to output a second pixel signal, and a third pixel configured to output a third pixel signal;
a first signal line configured to receive the first pixel signal;
a second signal line configured to receive the second pixel signal;
a third signal line configured to receive the third pixel signal;
a first comparator coupled to the first signal line and configured to output a first determination signal based on the first pixel signal;
a third comparator coupled to the third signal line and configured to output a third determination signal based on the third pixel signal;
a second comparator coupled to the second signal line and configured to output a second determination signal based on the second pixel signal, wherein the second comparator is arranged between the first comparator and the third comparator;
a first counter;
a first switch circuit configured to couple the first comparator to the first counter; and
a second switch circuit configured to couple the third comparator to the first counter;
wherein the first counter is configured to receive the first determination signal and the third determination signal.
2. The imaging device according to claim 1 , further comprising:
a second counter; and
a third switch configured to couple the third comparator to the second counter;
wherein the second counter is configured to receive the first determination signal and the third determination signal.
3. An imaging device comprising:
a plurality of pixels arranged in columns and rows, the plurality of pixels including a first pixel and a second pixel;
a plurality of signal lines including a first signal line coupled to the first pixel, and a second signal line coupled to the second pixel;
a plurality of comparators including a first comparator coupled to the first signal line, and a second comparator coupled to the second signal line, wherein the second comparator is not arranged adjacent to the first comparator in a row direction;
a plurality of counters including a first counter; and
a switch circuit configured to couple the first comparator to the first counter, and to couple the second comparator to the first counter.
4. The imaging device according to claim 3 ,
wherein the switch circuit includes a first switch circuit configured to couple an output terminal of the first comparator to an input terminal of the first counter,
wherein the switch circuit includes a second switch circuit configured to couple an output terminal of the second comparator to the input terminal of the first counter.
5. The imaging device according to claim 3 , further comprising a reference signal generation circuit configured to output a reference signal.
6. The imaging device according to claim 5 ,
wherein the first pixel is configured to output a first pixel signal, and the second pixel is configured to output a second pixel signal.
7. The imaging device according to claim 6 ,
wherein the first comparator is configured to compare the first pixel signal and the reference signal, and output a first determination signal.
8. The imaging device according to claim 7 ,
wherein the second comparator is configured to compare the second pixel signal and the reference signal, and output a second determination signal.
9. The imaging device according to claim 8 ,
wherein the input terminal of the first counter is configured to receive the first determination signal via the first switch circuit and the second determination signal via the second switch circuit.
10. The imaging device according to claim 9 , further comprising:
a second counter;
wherein the switch circuit includes a third switch circuit configured to couple the output terminal of the second comparator to the input terminal of the second counter.
11. The imaging device according to claim 10 ,
wherein the input terminal of the second counter is configured to receive the second determination signal via the third switch circuit.