Phase based distance estimation with non-zero intermediate frequency
US11533076B1 · kind B1 · utility
1Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2021 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/48
- 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, a frequency synthesizer configured to generate an oscillator signal, and a controller configured to cause the receiver RF chain to receive a first reflection signal from the antenna, down convert the first reflection signal to a non-zero intermediate frequency, and determine a range estimate to another transceiver circuit based on a phase of the first reflection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.