Time-of-flight distance measuring system and calibration method
US11454712B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Apr 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present application provides a time-of-flight distance measuring system (10), including a delay unit (12) configured to generate a plurality of delayed pulses according to a plurality of delay signals, wherein the plurality of delay signals correspond to a plurality of delay times; a light-emitting unit (13), configured to generate a plurality of delayed pulsed lights according to the plurality of delayed pulses; a photosensitive pixel circuit (14), configured to receive a plurality of delayed reflected lights to generate a plurality of pixel signals; a storage unit (16), configured to store a correspondence between the plurality of delay times and the plurality of pixel signals; and a control unit (18), configured to generate the plurality of delay signals; wherein, the time-of-flight distance measuring system performs a time-of-flight distance measuring according to the correspondence between the plurality of delay times and the plurality of pixel signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.