Magnetic field sensor with an adjustable threshold
US11454521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field sensor for detecting motion of an object includes one or more magnetic field sensing elements configured to generate a magnetic field signal in response to a magnetic field associated with the motion of the object and a detector responsive to the magnetic field signal and to a threshold signal and configured to generate a comparison signal having edges occurring in response to a comparison of the magnetic field signal to the threshold signal. A threshold generator is configured to generate the threshold signal at a first level when a peak-to-peak value of the magnetic field signal is greater than a first predetermined value and at a second level when the peak-to-peak value of the magnetic field signal is less than a second predetermined value different than the first predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.