Imaging pixel subarray with shared pulse detection
US9930280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/807
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging and pulse detection (IPD) pixel array includes a plurality of imaging pixels arranged in a plurality of rows and columns. Each imaging pixel includes a respective photodetector that outputs signals in response to incident light and input laser pulses. The signals include imaging signals that correspond to the incident light and pulse signals that correspond to the input laser pulses. The IPD array further includes an isolation circuit associated with each of the respective imaging pixels, each isolation circuit outputting filtered output pulse signals in response to receiving the signals from the associated imaging pixel, the filtered output pulse signals corresponding to the pulse signals. The IPD array further includes a single pulse detection circuit that toggles between a charged and uncharged state corresponding to a pulse being received from at least one of the isolation circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.