Bidirectional phase-based distance estimation with crystal offset
US11621738B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Sep 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/403
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transceiver circuit is disclosed. The transceiver circuit includes an antenna, a receiver RF chain configured to receive a receiver RF signal from the antenna, a transmitter RF chain configured to transmit a transmitter RF signal to the antenna, and a controller configured to cause the receiver RF chain to receive a first distance estimate between the antenna and another transceiver circuit, to calculate a second distance estimate between the antenna and the other transceiver circuit, and to determine a range estimate between the antenna and the other transceiver circuit based on the first distance estimate and the second distance estimate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.