TOUCH BUTTON FALSE ACTIVATION SUPPRESSION

A touch member (210) comprises a touch surface (20, 30) having at least two sensor electrodes (21-23) that are separated from each other on the touch surface (20, 30). Each of the sensor electrodes (21-23) have a certain signal level threshold with relation to activate/lock the touch member (210). T...

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Bibliographic Details
Main Author KARHINIEMI, MARKO
Format Patent
LanguageEnglish
French
German
Published 30.09.2015
Subjects
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
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Summary:A touch member (210) comprises a touch surface (20, 30) having at least two sensor electrodes (21-23) that are separated from each other on the touch surface (20, 30). Each of the sensor electrodes (21-23) have a certain signal level threshold with relation to activate/lock the touch member (210). The touch surface (20, 30) is divided into a first area and a second area each comprising at least one of the sensor electrodes (21-23). Upon touching the touch member (210) in an unlocked state, the at least two electrodes (21-23) are arranged to measure periodically a signal level received from each of the electrodes (21-23) to indicate a touch location, report periodically the touch location with respect to the first area of the touch surface (20, 30), and report the measured signal level of each of the electrodes (21-23) in the second area of the touch surface (20, 30). The controller (214) sends an instruction to select an operation state of the touch member (210) based on calculated touch location information of the reported touch location and compared signal level information of the reported measured signal level.
Bibliography:Application Number: EP20080775467