Three-dimensional object detection device
US12078719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Feb 16, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/932
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An object detection device that detects a corner of an object includes: a transmitter that transmits a search wave; receivers that receive a reflected wave reflected off the corner. The device determines a first path length of the search wave from the transmitter to a first receiver, and uses the positions of the transmitter and the first receiver as focal points to find a first ellipse whose distances from the transmitter and the first receiver add up to the first path length. The device determines a second path length of the search wave from the transmitter to a second receiver, and uses the positions of the transmitter and the second receiver as focal points to find a second ellipse whose distances from the transmitter and the second receiver add up to the second path length. The device finds an intersection point between the first and second ellipses as the corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.