Vision sensor and operating method of the same
US11950003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2022 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a vision sensor, an image processing device including the vision sensor, and an operating method of the vision sensor. The vision sensor includes a plurality of pixels arranged in a matrix form, wherein each of the plurality of pixels includes: a sensing circuit configured to output an output voltage by sensing a change of light; a comparison circuit configured to output a comparison signal indicating whether an event has occurred by comparing the output voltage to an event threshold; and an event detection circuit configured to generate internal event signals by sampling the comparison signal at each of a plurality of sampling time points, and configured to output a valid event signal based on the internal event signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.