RF in-wall image registration using position indicating markers
US10209357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | May 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/468
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radio frequency (RF) imaging device comprises an RF sensor assembly, a position sensor, a processor, and a memory. The RF sensor assembly receives an RF signal for capturing an RF image of a portion of a space behind a surface. The position sensor receives a plurality of signals respectively emitted by a plurality of position markers at known positions relative to the surface. The processor determines a plurality of angles at which the plurality of signals respectively arrive at the position sensor and determines, based on the plurality of angles and the known positions of the plurality of position markers, a position of the RF imaging device relative to the surface. The memory stores the RF image in association with the determined position of the RF imaging device. A time-of-flight or triangulation of signal data may be used for position determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.