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US 2018/0007296 A1Published application
Active reset circuit for reset spread reduction in single-slope adc
AssigneeSony Corporation
InventorsTHOMAS RICHARD AYERS, SHIZUNORI MATSUMOTO
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Abstract
An image sensor comprises a pixel circuit including a reset transistor and configured to output a pixel signal; and a differential comparator including a pixel input, a reference input, and a comparator output, wherein one of a source or a drain of the reset transistor is connected to the comparator output. In this manner, an active reset method may be incorporated in the image sensor.
Claims20
An image sensor, comprising:
- a pixel circuit including a reset transistor and configured to output a pixel signal;
- a differential comparator including a pixel input, a reference input, and a comparator output;
- a first signal line connected to the pixel circuit and to the differential comparator;
- and
- a second signal line connected to one of a source or a drain of the reset transistor and to the comparator output.
2 more elements
An image processing method, comprising:
- outputting a pixel signal from a pixel circuit including a reset transistor via a first signal line;
- and
- outputting a difference signal from a differential comparator including a pixel input, a reference input, and a comparator output,
- wherein one of a source or a drain of the reset transistor is connected to the comparator output via a second signal line.
1 more element
Dependencies are inferred from the claim text.