Imaging device, semiconductor device and camera
US11284032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/79
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device includes a pixel circuit configured to generate an analog signal; an amplification circuit including a feedback capacitor and its reset switching element; a sample and hold circuit for the amplified analog signal; an A/D conversion circuit for the analog signal held in the sample and hold circuit; a memory circuit configured to store the digital signal; a reading circuit configured to read the digital signal stored in the memory circuit; and a control circuit configured to perform a rise and a fall of the control signal such that the rise and the fall do not overlap a conversion period of the analog signal by the A/D conversion circuit and do not overlap a reading period of the digital signal by the reading circuit, when the switching element is off during a sampling period of the analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.