Search International and National Patent Collections

1. (WO2015047343) POLARIZED MAGNETIC ACTUATORS FOR HAPTIC RESPONSE

Pub. No.:    WO/2015/047343    International Application No.:    PCT/US2013/062449
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Sep 28 01:59:59 CEST 2013
IPC: H01F 7/12
H01F 7/122
H01F 7/14
H01F 7/16
Applicants: APPLE INC.
Inventors: LUBINSKI, Nicholaus
WRIGHT, James E.
HARLEY, Jonah A.
HOEN, Storrs T.
BROCK, John M.
HENDREN, Keith J.
Title: POLARIZED MAGNETIC ACTUATORS FOR HAPTIC RESPONSE
Abstract:
A polarized electromagnetic actuator includes a movable armature, a stator, and at least one coil wrapped around the stator. At least one permanent magnet is disposed over the stator. When a current is applied to the at least one coil, the at least one coil is configured to reduce a magnetic flux of at least one permanent magnet in one direction and increase a magnetic flux of at least one permanent magnet in another direction. The movable armature moves in the direction of the increased magnetic flux.