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:
Apr. 20, 2021
Filed:
Jun. 06, 2019
Beechrock, Castletown, IM;
Owen Drumm, Dublin, IE;
Beechrock Limited, Castletown, IM;
Abstract
A touch sensitive surface has emitters and detectors arranged around at least a portion of a periphery of the touch sensitive surface. The emitters produce optical beams that are received by the detectors. Touch events disturb the beams propagating toward the detectors. Variations in the beams resulting from the touch events are captured and are used to determine the touch events. A stylus disturbs beams when in contact with the touch sensitive surface. The stylus includes a control that can change the stylus from a default state to an alternative state, where the stylus disturbs the beams differently in each state. A controller determines the state of the stylus based on the beams received by the detectors.