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Method and System for Detecting and Removing Liquid on Capacitive Touch Screens Using Ultrasound Transducers

IP.com Disclosure Number: IPCOM000248627D
Publication Date: 2016-Dec-22
Document File: 4 page(s) / 57K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and system is disclosed for detecting and removing liquid on capacitive touch screens using ultrasound transducers. The method and system combines user interaction behavior analysis, environment analysis, weather analysis and finger analysis to determine areas of a capacitive touch screen that contain the liquid. Then, the method and system uses targeted emissions from the ultrasonic transducers to remove the liquid from the capacitive touch screen based on the areas that contain the liquid and predictions of future user input areas.

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Method and System for Detecting and Removing Liquid on Capacitive Touch Screens Using Ultrasound Transducers

Disclosed is a method and system for detecting and removing liquid on capacitive touch screens using ultrasound transducers. The method and system combines user interaction behavior analysis, environment analysis, weather analysis and finger analysis to determine areas of a capacitive touch screen that contain the liquid. Then, the method and system uses targeted emissions from the ultrasonic transducers to remove the liquid from the capacitive touch screen based on the areas that contain the liquid and predictions of future user input areas.

The method and system derives a possible presence of liquid on a capacitive touch screen of user device such as, but need not be limited to, mobile phone, laptop, tablet and smart watch. In order to derive the presence of liquid, the method and system performs a user interaction behavior analysis, an environment analysis, a weather analysis and a finger analysis.

The method and system performs the user interaction behavior analysis by monitoring movements of a user with respect to the capacitive touch screen. The movements include, but need not be limited to, issuing gestures indicating multiple failed attempts to select a user interface object and movement consistent with a slippery finger.

The method and system performs environment analysis by allowing a front facing camera of the user device to determine whether the user device is in the presence of liquid or to determine whether the user device is close to a water source such as, but need not be limited to, pool and shower.

The method and system performs the weather analysis by allowing a GPS module of the user device to establish location, weather conditions and humidity conditions. Then, the method and system determines whether the user device is wet from rain or high humidity.

The method and system performs finger analysis by allowing the front facing camera of the user device to monitor whether fingers of the user appear to be wet.

For larger displays such as, but need not be limited to, larger phones and tablets, once the possible presence of liquid on the capactive touch screen is determined, the method and system further derives a predicted area on the capacitive touch screen that contains liquid and predicts a future user input area.

In order to derive a predicted area on the capacitive touch screen that contains the liquid, the method and system uses the user behavior interaction analysis results. For example, movements of a user such as, but need not be limited to, repeatedly attempting to select an user interface object or movement consistent with a slippery finger indicates an area of the capcitive touch screen that contains the liquid. Thus, the method and system predicts the areas of the capacitiv...