Counting pixel with good dynamic range properties
US8440957B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Mar 29, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/773
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an array of pixels for the detection of a flash of electromagnetic radiation or a cloud of impinging high energy particles. Each pixel in the array comprises a radiation receptor for converting the electromagnetic radiation or impinging high energy particles into a radiation signal, and a converter for converting the radiation signal into pulses. The array further comprises a circuit for comparing one or more of the criteria pulse amplitude, pulse arrival time, time to convert a pulse in a digital signal, pulse duration time, pulse rise and fall time or integral of pulse over time for pulses coinciding on pixels in a predetermined neighborhood. The array also comprises a circuit for suppressing those pulses that are compared negatively versus the corresponding pulses in another pixel of the neighborhood for the same one or more criteria. A corresponding method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.