Camera system and method of driving a solid-state imaging apparatus
View Patent ↗Provided is a method of driving a solid-state imaging apparatus including discharging a signal charge from a photoelectric transducer, by turning on a transfer section and turning on a reset section, at a first timing, in a shutter operation for starting an accumulation of the signal charge for the photoelectric transducer while a selection section is turned off, boosting a floating diffusion section, by turning on the transfer section and turning off the reset section, at a second timing which follows the first timing and taking in an electric signal output to an output signal line by a peripheral circuit section, in a state in which the transfer section is turned on, and generating a pixel signal from the taken in signal.
1. A method of driving a solid-state imaging apparatus, the method comprising:
a step (1) of electrically disconnecting a vertical signal line in an imaging pixel section from an amplification transistor in a first shutter row pixel by turning off a selection transistor in the first shutter row pixel;
a step (2) of electrically connecting the vertical signal line to an amplification transistor in a readout row pixel by turning on a selection transistor in the readout row pixel, the step (1) commencing before the step (2) and the step (2) occurring during the step (1);
a step (3) of electrically connecting a power supply voltage to a floating diffusion section in the readout row pixel by turning on a reset transistor in the readout row pixel, the step (2) commencing before the step (3) and the step (3) occurring during the step (2);
a step (4) of electrically connecting the power supply voltage to a floating diffusion section in the first shutter row pixel by turning on a reset transistor in the first shutter row pixel, the step (3) occurring during the step (4) and the step (4) occurring during the step (2);
a step (5) of electrically connecting a photoelectric transducer in the first shutter row pixel to the floating diffusion section in the first shutter row pixel by turning on a transfer transistor in the first shutter row pixel, the step (5) occurring during the step (4);
a step (a) of electrically disconnecting the vertical signal line from an amplification transistor in a second shutter row pixel by turning off a selection transistor in the second shutter row pixel;
a step (b) of electrically connecting the power supply voltage to a floating diffusion section in the second shutter row pixel by turning on a reset transistor in the second shutter row pixel, the step (b) occurring during the step (a) and the step (1) occurring during the step (a); and
a step (c) of electrically connecting a photoelectric transducer in the second shutter row pixel to the floating diffusion section in the second shutter row pixel by turning on a transfer transistor in the second shutter row pixel, the step (4) occurring before the step (c),
wherein the first shutter row pixel is a pixel in a first shutter row and the readout row pixel is a pixel in a readout row, the readout row being a row in the imaging pixel section and the first shutter row being another row in the imaging pixel section,
wherein the second shutter row pixel is a pixel in a second shutter row, the second shutter row being in the imaging pixel section between the first shutter row and the readout row.
2. The method of claim 1 , wherein the step (5) occurs during the step (2).
3. The method of claim 1 , wherein the step (4) occurs before the step (5).
4. The method of claim 1 , further comprising:
a step of generating a signal charge corresponding to an amount of light received by the photoelectric transducer in the first shutter row pixel.
5. The method of claim 1 , further comprising:
a step (6) of electrically connecting a photoelectric transducer in the readout row pixel to the floating diffusion section in the readout row pixel by turning on a transfer transistor in the readout row pixel, the step (5) occurring before the step (6).
6. The method of claim 5 , further comprising:
a step of generating a signal charge corresponding to an amount of light received by the photoelectric transducer in the readout row pixel.
7. The method of claim 1 , wherein the step (c) occurs during the step (2).
8. The method of claim 1 , wherein the step (c) occurs during the step (4).
9. The method of claim 1 , further comprising:
a step of generating a signal charge corresponding to an amount of light received by the photoelectric transducer in the second shutter row pixel.
10. The method of claim 1 , wherein a third shutter row in the imaging pixel section is between the second shutter row and the readout row, the method further comprising:
a step (i) of electrically disconnecting the vertical signal line from an amplification transistor in a third shutter row pixel by turning off a selection transistor in the third shutter row pixel, the third shutter row pixel being a pixel in the third shutter row.
11. The method of claim 10 , wherein the step (i) occurs during the step (1).
12. The method of claim 10 , further comprising:
a step (ii) of electrically connecting the power supply voltage to a floating diffusion section in the third shutter row pixel by turning on a reset transistor in the third shutter row pixel, the step (ii) occurring during the step (i).
13. The method of claim 12 , further comprising:
a step (iii) of electrically connecting a photoelectric transducer in the third shutter row pixel to the floating diffusion section in the third shutter row pixel by turning on a transfer transistor in the third shutter row pixel.
14. The method of claim 13 , wherein the step (iii) occurs during the step (2).
15. The method of claim 13 , wherein the step (iii) occurs during the step (4).
16. The method of claim 13 , wherein the step (4) occurs before the step (iii).
17. The method of claim 13 , further comprising:
a step of generating a signal charge corresponding to an amount of light received by the photoelectric transducer in the third shutter row pixel.