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:
Jan. 29, 2019
Filed:
May. 10, 2017
Apple Inc., Cupertino, CA (US);
Michael B. Nussbaum, Santa Cruz, CA (US);
Mark J. Beesley, Carmel Valley, CA (US);
Daniel D. Sunshine, Sunnyvale, CA (US);
Christopher A. Schultz, San Francisco, CA (US);
Daniel A. Podhajny, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may have haptic output devices based on shape memory alloy wire. The electronic device may have control circuitry that supplies current to the shape memory alloy wire to heat and thereby contract the shape memory wire to create vibrations for a user's finger. The vibrations may serve as haptic feedback in a device such as a keyboard, a strap with embedded buttons, or other electronic devices. The shape memory alloy wire may run between upper and lower fabric layers in a spacer fabric, may form loops that attached to a fabric layer, or may be tensioned across an opening in a printed circuit or other rigid support structure.