Wireless location detection and/or tracking device and associated methods
US8723720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The wireless detection beacon is for use with a Radio Frequency (RF) interrogator transmitting at a first frequency and receiving at a second frequency. The wireless detection beacon includes a substrate, a power supply carried by the substrate, an antenna assembly carried by the substrate, and a local oscillator (LO) carried by the substrate and configured to be powered by the power supply to provide an LO signal at a third frequency. A mixer is carried by the substrate and coupled to the antenna assembly and the LO. The mixer is configured to generate an outgoing beacon signal to the antenna assembly at the second frequency based upon mixing an incoming signal from the RF interrogator at the first frequency with the LO signal at the third frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.