Saturation compensation using a smart-device-based radar system
US11906619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2023 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Feb 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/017
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques and apparatuses are described that implement a smart-device-based radar system capable of detecting user gestures in the presence of saturation. In particular, a radar system employs machine learning to compensate for distortions resulting from saturation. This enables gesture recognition to be performed while the radar system's receiver is saturated. As such, the radar system can forgo integrating an automatic gain control circuit to prevent the receiver from becoming saturated. Furthermore, the radar system can operate with higher gains to increasing sensitivity without adding additional antennas. By using machine learning, the radar system's dynamic range increases, which enables the radar system to detect a variety of different types of gestures having small or large radar cross sections, and performed at various distances from the radar system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.