SYSTEM AND METHOD FOR ESTIMATING LOCATION OF A TOUCH OBJECT IN A CAPACITIVE TOUCH PANEL

A method and capacitive touch panel are provided. The method includes receiving, by a sensing circuit, raw data for detecting a touch object in a proximity of a capacitive touch panel, where the raw data includes a difference of a mutual capacitance value and a self-capacitance value at each of touc...

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Bibliographic Details
Main Authors VADREVU Prathyusha, LEE Seungjae, KIM Jongseon, VANGA Sandeep, SHAIK Karimulla
Format Patent
LanguageEnglish
Published 01.02.2018
Subjects
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A method and capacitive touch panel are provided. The method includes receiving, by a sensing circuit, raw data for detecting a touch object in a proximity of a capacitive touch panel, where the raw data includes a difference of a mutual capacitance value and a self-capacitance value at each of touch nodes of the capacitive touch panel; processing, by a touch sensing controller, the received raw data to derive digitized capacitance data; classifying, by the touch sensing controller, the digitized capacitance data; and estimating, by the touch sensing controller, at least one of a location of the touch object on the capacitive touch panel and a distance of the touch object from the capacitive touch panel within the proximity using the classified capacitance data.
Bibliography:Application Number: US201615220621