Ultrasonic short range moving object detection
US10634544B1 · kind B1 · utility
3Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | May 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/526
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic transceiver can detect the presence of nearby moving objects while rejecting signals from stationary targets and from transmitter signal feedthrough. Data corresponding to received ultrasound signals are stored in a digital memory. For each sample in a measurement, a difference is calculated between corresponding samples in the stored data corresponding to received signals for current and previous measurements to estimate a time of flight to a moving object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.