Analog-to-digital converting circuit, image sensing device and operation method thereof
US11647308B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jan 12, 2022 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Jan 12, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.