Apple Inc.

Bongsoo Suh

Stephen Olivier Lemay

Christopher Patrick Foss

Chanaka G Karunamuni

Wan Si Wan

Jeffrey Traer Bernstein

Craig Michael Federighi

Julian K Missig

Marcos Alonso Ruiz

Nathan De Vries

Brandon M Walkin

William McMillan Tyler

Caelan G Stack

Mani Amini

Nima Ferdosi

Linda L Dong

Baboo V Gowreesunker

Shubham Kedia

Behrooz Shahsavari

Utkarsh Gaur

Hojjat Seyed Mousavi

Terence L Magno

Seyed M Navidpour

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. In some examples, the electronic device can use machine learning techniques to estimate the (x, y) position and/or tilt and/or azimuth angles of the stylus tip at the touch sensitive surface based on a subset of stylus data.

System and machine learning method for localization of an input device relative to a touch sensitive surface

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.

System and machine learning method for detecting input device distance from touch sensitive surfaces

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Bongsoo Suh