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. 20, 2025
Filed:
Feb. 24, 2023
Apple Inc., Cupertino, CA (US);
Mark T. Winkler, Menlo Park, CA (US);
Mehmet Mutlu, Grover Beach, CA (US);
Omid Momtahan, Palo Alto, CA (US);
Tong Chen, Fremont, CA (US);
Wenrui Cai, San Jose, CA (US);
Chau H. Nguyen, San Jose, CA (US);
Giovanni Gozzini, Berkeley, CA (US);
Michael K. McCord, San Francisco, CA (US);
Orit A. Shamir, San Francisco, CA (US);
Prashanth S. Holenarsipur, Fremont, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.