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:
May. 19, 2026
Filed:
May. 05, 2023
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Denis G. Chen, San Jose, CA (US);
Darya Amin-Shahidi, Menlo Park, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/01 (2006.01); G01B 7/14 (2006.01); H02K 33/18 (2006.01);
U.S. Cl.
CPC ...
G06F 3/016 (2013.01); G01B 7/14 (2013.01); H02K 33/18 (2013.01);
Abstract
A haptic engine for an electronic device includes a coil assembly and a stator. The coil assembly may be coupled to an input structure, such as a button cap. In an gap sensing mode, a first voltage may be driven through the coil assembly to determine an impedance of the coil assembly. The impedance is then used to determine a gap between the coil assembly and the stator. In a haptic drive mode, a second voltage is driven through the coil assembly to produce a haptic output.