Systems and methods for analog image sensing and processing
US12323724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jul 7, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/772
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Analog image processing systems and methods are provided. The systems are configured to convert a pixel output signal to a time pulse without analog to digital signal conversion. Pixel output voltage is sampled and the pixel voltage is applied to a capacitor. A comparator configured to sense the pixel voltage on the capacitor as the capacitor is discharged generates output time pulses. The output time pulse is proportional to the pixel voltage and may be processed by an all-analog neural network to perform functions such as object detection, object classification, image quality enhancement and always-on image processing with low power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.