Imaging device and electronic device
US12120446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2021 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Nov 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/809
- 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 unit, and a product-sum operation is performed using the binarized data. A memory circuit is provided in the pixel unit 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, whereby 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 stacked, so that the lengths of wirings between the circuits can be reduced, and high-speed operation with low power consumption can be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.