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. 28, 2024
Filed:
Jul. 29, 2020
Apple Inc., Cupertino, CA (US);
Jack Erdozain, Jr., Boston, MA (US);
Jeffrey A. Sewell, Wyandotte, MI (US);
Johnny L. Wall, Valencia, CA (US);
Colin Szechy, San Francisco, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
A motion control system that can detect a change in a an operating characteristic and send a stabilizing command to an actuator system based on the change is described. A motion control component in the system includes a first component with an electropermanent magnet having a coil, differing first and second permanent magnet materials, and differing first and second states. The motion control component includes a second component configured to magnetically interact with the first component to define a damping characteristic that affects motion between the first component and the second component and a controller configured to supply a current pulse to the electropermanent magnet to switch the electropermanent magnet between the first and second states. The electropermanent magnet retains the respective first or second state after cessation of the current pulse.