Time-of-flight sensing device and method thereof
US12092767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2023 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | May 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0891
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of a sensing device, comprising steps of emitting, by a light source of the sensing device, a light pulse in each of n cycles; measuring, by a single photon avalanche diodes array of the sensing device, a time-of-flight value with a resolution of m in each of the n cycles to generate n raw data frames based on a reflected light of the light pulse; performing, by a pre-processing circuit of the sensing device, a pre-processing operation to n raw data frames to generate k pre-processed data frames, wherein m, n and k are natural numbers, and k is smaller than n; and generating, by post-processor of the sensing device, a histogram according to the k pre-processed data frames and analyzing the histogram to output a depth result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.