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US 12,276,531 B2Granted
Method and device to calibrate magnetic field data
AssigneeSamsung Electronics Co., Ltd.
InventorsKihun Eom, Taekeun Kim, Shinhun Moon, Kihong Min, Sejeong Oh
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Abstract
An electronic device includes a rotating body coupled to a bezel part to be rotatable and including a plurality of magnets, a pair of Hall sensors configured to sense a magnetic field caused by the plurality of magnets, a magnetic sensor disposed in an internal space, and a processor configured to calibrate, based on first magnetic field data, second magnetic field data based on a calculated offset value.
Claims21
An electronic device, comprising:
- a rotating body coupled to a bezel part of the electronic device to be rotatable about a rotation axis, the rotating body comprising a plurality of magnets;
- a pair of Hall sensors disposed in the bezel part and configured to sense a magnetic field generated by the plurality of magnets;
- a magnetic sensor disposed in an internal space within a circumference of the rotating body;
- at least one processor comprising processing circuitry, electrically connected to the pair of Hall sensors and the magnetic sensor;
- and
- memory comprising one or more storage medium storing instructions that, when executed by the at least one processor, individually and/or collectively, cause the electronic device to:
- calibrate, using first magnetic field data generated based on the pair of Hall sensors, second magnetic field data generated based on the magnetic sensor.
4 more elements
A method performed by an electronic device, the method comprising:
- generating first magnetic field data for a magnetic field caused by a plurality of magnets included in a rotating body coupled to a bezel part of the electronic device to be rotatable about a rotation axis, based on a pair of Hall sensors disposed in the bezel part;
- generating second magnetic field data based on a magnetic sensor disposed in an internal space within a circumference of the rotating body;
- calculating a compensated offset value based on an angular position of the rotating body and the first magnetic field data;
- and
- calibrating the second magnetic field data based on the compensated offset value.
2 more elements
Dependencies are inferred from the claim text.