The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Apr. 11, 2017
Applicant:
Apple Inc., Cupertino, CA (US);
Inventor:
Jian Guo, Milpitas, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/34 (2006.01); G01R 33/3415 (2006.01); G01R 33/565 (2006.01); G01R 33/02 (2006.01); G01R 33/38 (2006.01); G01R 33/00 (2006.01); G01R 33/07 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0029 (2013.01); G01R 33/07 (2013.01);
Abstract
Systems, methods and non-transitory, computer-readable mediums are disclosed for a magnetic field sensor array with electromagnetic interference cancellation. In an embodiment, a circuit comprises: a first circuit configured for obtaining an output signal from a magnetic field sensor array in an electronic system, the output signal representing a magnetic field present in the electronic system, the magnetic field including electromagnetic interference (EMI) generated by one or more magnetic aggressors of the electronic system; and a second circuit configured to apply one or more magnetic field gradient heat maps to the output signal.