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. 30, 2021
Filed:
Sep. 27, 2018
Apple Inc., Cupertino, CA (US);
Ahmed Zoubir, Cupertino, CA (US);
David Graff, San Francisco, CA (US);
Baboo Gowreesunker, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
This relates to methods and apparatus for estimating an object profile to improve accuracy of touch sensor panel input (e.g., reducing input position wobble for a stylus or finger translating on a surface over and between electrodes of a touch sensor panel). In some examples, the object profile estimation can begin with an initial profile estimate that can allow the object profile estimation to converge for a large range of possible input object sizes, shapes, distances, and/or orientations. The object profile information can use data from multiple frames of data acquisition as well as multiple pixels in the panel to construct the object profile estimate based on the input measurement. Specifically, the object profile can be estimated by measuring the object at various positions relative to touch pixels or nodes and gaps between touch pixels or nodes over multiple frames of sensor data and combining the measurement data of the multiple frames.