Method and apparatus for measuring distance
US11067680B2 · kind B2 · utility
0Cited by
2References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 3, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Feb 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/583
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distance measuring method and apparatus are provided. The distance measuring apparatus emits a transmission signal while changing a frequency over time, receives a reception signal from an object in response to the transmission signal being reflected from the object, samples a beat frequency indicating a difference between a frequency of the transmission signal and a frequency of the reception signal in a sampling range that changes based on the beat frequency, and determines a distance to the object based on the sampling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.