Imaging device and electronic device
US12396181B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Feb 5, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/08146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device that has an image processing function and is capable of operating at high speed is provided. The imaging device has an additional function such as image processing, image data obtained by an imaging operation is binarized in a pixel portion, and a product-sum operation is performed using the binarized data. A memory circuit is provided in the pixel portion and retains a weight coefficient used for the product-sum operation. Thus, an arithmetic operation can be performed without the weight coefficient read from the outside every time, so that power consumption can be reduced. Furthermore, a pixel circuit, a memory circuit, and the like and a product-sum operation circuit and the like are formed to be stacked; therefore, the length of a wiring between the circuits can be shortened, and a low-power consumption operation and a high-speed operation can be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.