Image sensing device using adaptively adjusted pre-charge current
US11895418B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 7, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Jan 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/772
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.