Distance detection method and distance detection device using the same
US10288731B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Distance detection method and device are provided. The distance detection method comprises: providing a directional signal emitting module; providing a directional signal receiving module having a constant bandwidth; providing a distance detection signal to the directional signal emitting module; changing a frequency of the distance detection signal provided to the directional signal emitting module, and judging whether the directional signal receiving module can decode a reflected directional signal into a received signal; and judging a distance between an external object and the directional signal receiving module according to whether the received signal corresponding to the frequency of the distance detection signal can be decoded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.