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. 13, 2017
Filed:
Sep. 18, 2015
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Arman Hajati, Cupertino, CA (US);
Shingo Yoneoka, Cupertino, CA (US);
Jonah A. Harley, Cupertino, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/36 (2006.01); H04L 25/49 (2006.01); G06F 3/01 (2006.01); G08B 6/00 (2006.01);
U.S. Cl.
CPC ...
H04L 25/4902 (2013.01); G06F 3/016 (2013.01); G08B 6/00 (2013.01);
Abstract
A haptic actuator may include a housing, at least one permanent magnet carried by the housing, a field member movable within the housing and comprising at least one coil cooperating with the at least one permanent magnet, and at least one mechanical limit stop between the housing and the field member. The haptic actuator may also include circuitry capable of generating a pulse width modulated (PWM) waveform for the at least one coil to move the field member from an initial at-rest position and without contacting the at least one mechanical limit stop.