Flag-based readout architecture for event-driven pixel matrix array
US11889208B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2022 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jul 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/7795
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An event-driven sensor including: a pixel array; a column readout circuit coupled to column output lines of the pixel array, the column readout circuit comprising a plurality of groups of column register cells coupled in series with each other to propagate a first flag signal, wherein each column register cell is configured to activate a column event output signal when it receives the first flag signal while the detection of an event is indicated on the column output line; and a first bypassing circuit for each group of column register cells, the first bypassing circuits being coupled in series with each other to propagate the first flag signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.