US 8,150,639 B2 · Magnetic field sensor

Abstract

Magnetic field sensors (1) comprising field detectors (10) for detecting magnetic fields are provided with environment detectors (11) for detecting environments and with processors (12) for, in response to detected environments, performing processes such as loading calibration parameter sets and (re)calibrations for the field detectors (10), to allow the magnetic field sensors (1) to be used in different subsequent environments. The environment detectors (11) may comprise code detectors for detecting codes indicative for environments and may comprise user interfaces (13) for, in response to detected environments and via user interactions, selecting processes to be performed by the processors (12). Devices (2) comprise magnetic field sensors (1). Apparatuses (3) such as cradles removably fix the devices (2) and may comprise code generators (30) for generating the codes indicative for the environments.

Claims15

Dependent claims

A magnetic field sensor comprising:

a field detector, comprising an accelerometer, for detecting a magnetic field and for, in response to a field detection result, outputting an indication signal;
a code generator for generating a code indicative for a magnetic environment;
an environment detector comprising a code detector for detecting the code indicative for the magnetic environment and for, in response to a first environment detection result, outputting a first result signal and for, in response to a second environment detection result different from the first environment detection result, outputting a second result signal different from the first result signal;
and
a processor for, in response to the first result signal, performing a first process for the field detector and for, in response to the second result signal, performing a second process for the field detector, which second process is different from the first process.

2 more elements

Dependencies are inferred from the claim text.

Magnetic field sensor

Life of this patent

Magnetic field sensor

Life of this patent

Abstract

Claims15