Photodetector and distance measurement apparatus comprising plural single photon avalanche diodes with different recovery time periods
US11422241B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Sep 26, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/959
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photodetector includes plural detectors. Each of the plural detectors has a single photon avalanche diode (hereinafter referred to as SPAD) which responds to incidence of a photon. The plural detectors include at least a first detector and a second detector. The SPAD has a recovery time period until the SPAD reaches a next photon-responsive state, in response to the SPAD responding to the incidence of the photon. The recovery time period of the SPAD in the first detector is different from the recovery time period of the SPAD in the second detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.