Reset-marking pixel sensor
US9521337B1 · kind B1 · utility
36Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Nov 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/772
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A self-resetting pixel having a memory element to record occurrence of an asynchronous pixel reset and circuitry to enable the memory element to be digitally sampled and cleared is disclosed, together with embodiments of digital image sensors formed by arrays or other collections of such pixels. By marking occurrence of asynchronous reset events within an in-pixel memory element that may be digitally oversampled during an exposure interval (i.e., repeatedly read-out in the form of, for example, a single-bit), it becomes possible to check for and detect asynchronous pixel reset events frequently and efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.