Time-of-flight ranging device and time-of-flight ranging method
US12411239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2021 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jun 29, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time-of-flight ranging device and a time-of-flight ranging method are provided. The time-of-flight ranging device includes a light source, a sensing array, and a time-to-digital converter. The light source emits a laser pulse signal towards a sensing target. The sensing array includes a plurality of sensing units. The sensing array is configured to sense reflected pulse light generated when the sensing target reflects the laser pulse signal. The time-to-digital converter is coupled to the sensing array. The time-to-digital converter performs an integration operation on a plurality of sensing results of the sensing units during a plurality of consecutive integration periods to generate histogram data. At least part of the integration periods have different time lengths, such that at least part of a plurality of bins in the histogram data have different bin widths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.