Electromagnetic distortion detection
US11395703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jan 12, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/731
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for electromagnetic distortion detection are disclosed. In one aspect, the system includes an electromagnetic (EM) sensor configured to generate an EM sensor signal in response to detection of the EM field. The system may also include a processor configured to calculate a baseline value of a metric indicative of a position of the EM sensor at a first time and calculate an updated value of the metric during a time period after the first time. The processor may be further configured to determine that a difference between the updated value and the baseline value is greater than a threshold value and determine that the EM field has been distorted in response to the difference being greater than the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.