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1. (WO2018089920) METHOD AND APPARATUS FOR BATTERY-FREE IDENTIFICATION TOKEN FOR TOUCH SENSING DEVICES

Pub. No.:    WO/2018/089920    International Application No.:    PCT/US2017/061357
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Tue Nov 14 00:59:59 CET 2017
IPC: G06F 3/01
G06F 3/041
G06F 3/044
G05F 1/45
H01G 4/005
H04L 9/32
Applicants: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
Inventors: VU, Tam
NGUYEN, Phuc
Title: METHOD AND APPARATUS FOR BATTERY-FREE IDENTIFICATION TOKEN FOR TOUCH SENSING DEVICES
Abstract:
The present disclosure relates to data communications. More specifically, the present disclosure relates to the generation of touch events on a capacitive touch-screen of an electronic device to communicate information to the electronic device. A method, apparatus, and system for using a user device to communicate with a touch-screen of an electronic device involves the token transmitting its identity (ID) directly through the touch-sensor by artificially modifying the effective capacitance between the touch-sensor and token surfaces. The electronic device receives the signal to identify the individual token.