Method for gating an output of a single photon avalanche diode (SPAD) cluster based on an ambient count of ambient light events generated by the SPAD cluster in a region of interest of a time of flight (TOF) ranging array
US11885878B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 26, 2022 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Sep 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an embodiments, a method for operating a time-of-flight (ToF) ranging array includes: illuminating a field-of-view (FoV) of the ToF ranging array with radiation pulses; receiving reflected radiation pulses with a plurality of single photon avalanche diodes (SPADs) in a region of interest (ROI) of the ToF ranging array, the plurality of SPADs arranged in a plurality of SPAD clusters; determining an ambient count of ambient light events generated by SPADs of a first SPAD cluster of the plurality of SPAD clusters; and gating an output of the first SPAD cluster based on the ambient count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.