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:
Feb. 12, 2019
Filed:
Sep. 25, 2017
Apple Inc., Cupertino, CA (US);
Chin Han Lin, Cupertino, CA (US);
Stephen N. Sweet, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device includes an input device having a moveable shaft, a reflective surface, an optical energy transmitter, and optical energy receivers that receive optical energy transmitted by the optical energy transmitter and reflected by the reflective surface. Movement of the moveable shaft changes the optical energy received by the optical energy receivers. The movement or position of the shaft may be determined by analyzing the optical energy received. Detectable movement may include rotation, rotation speed, rotation direction, translation, tilt, displacement, and so on. The optical energy receivers may be configured in concentric rings.