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:
Mar. 29, 2022
Filed:
Jan. 28, 2021
System and machine learning method for detecting input device distance from touch sensitive surfaces
Apple Inc., Cupertino, CA (US);
Behrooz Shahsavari, Hayward, CA (US);
Bongsoo Suh, San Jose, CA (US);
Utkarsh Gaur, Millbrae, CA (US);
Nima Ferdosi, San Jose, CA (US);
Baboo V. Gowreesunker, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
In some examples, an electronic device can use machine learning techniques, such as convolutional neural networks, to estimate the distance between a stylus tip and a touch sensitive surface (e.g., stylus z-height). A subset of stylus data sensed at electrodes closest to the location of the stylus at the touch sensitive surface including data having multiple phases and frequencies can be provided to the machine learning algorithm. The estimated stylus z-height can be compared to one or more thresholds to determine whether or not the stylus is in contact with the touch sensitive surface.