Positioning device and positioning method
US10416305B2 · kind B2 · utility
1Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positioning device includes an optical sensor, an ultrasonic transceiver and a processor. The optical sensor is configured to obtain a depth image. The ultrasonic transceiver is configured to send an ultrasound and receive an ultrasound reflection. The processor is configured to target a reflective surface in the depth image, recognize a salient feature corresponding to the reflective surface in the ultrasound reflection, estimate a distance between the positioning device and reflective the surface according to a first response time of the salient feature in the ultrasound reflection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.