US 12,379,430 B2
Method related to magnetic field interference and sensing system
Zhu-Xuan Xie, New Taipei (TW); and Chih Hao Chiu, New Taipei (TW)
Assigned to Wistron Corporation, New Taipei (TW)
Filed by Wistron Corporation, New Taipei (TW)
Filed on May 25, 2023, as Appl. No. 18/323,417.
Claims priority of application No. 112114911 (TW), filed on Apr. 21, 2023.
Prior Publication US 2024/0353508 A1, Oct. 24, 2024
Int. Cl. G01R 33/02 (2006.01)
CPC G01R 33/02 (2013.01) 18 Claims
OG exemplary drawing
 
1. A method related to magnetic field interference, comprising:
determining magnetic field uniformity within a time period based on a magnetic field within the time period detected by a magnetometer of a sensing device, wherein the magnetic field uniformity is in one of a uniform state and a non-uniform state, and determining the magnetic field uniformity within the time period comprises:
respectively determining that the magnetic field at a plurality of time points within the time period is one of a plurality of magnetic field levels;
determining a first proportion of a first level among the magnetic field levels at the time points; and
determining whether the magnetic field uniformity is in one of the uniform state and the non-uniform state according to the first proportion;
determining a movement situation within the time period;
determining magnetic field interference situation according to the magnetic field uniformity and the movement situation; and
indicating a level of a determined magnetic field interference situation by the sensing device with at least one of a light, a sound, a color on a user interface (UI), or a pattern on the UI corresponding to the level of the determined magnetic field interference situation.