发明名称 HIGH NOISE IMMUNITY SENSING METHODS AND APPARATUS FOR A CAPACITIVE TOUCH DEVICE
摘要 A sensing method and a sensing apparatus for a capacitive touch device sense variations of self capacitances of first traces in a first direction and second traces in a second direction and variations of mutual capacitances of intersections between the first traces and the second traces, and then generates fourth sensed values from the first, second and third sensed values to serve as sensed values of the changes of the mutual capacitances of the intersections between the first traces and the second traces for identifying one or more touch points. Therefore, noise interference is suppressed and real touch points can be easily to be identified.
申请公布号 US2013257797(A1) 申请公布日期 2013.10.03
申请号 US201313795844 申请日期 2013.03.12
申请人 ELAN MICROELECTRONICS CORPORATION 发明人 WU CHIA-MU;HSU YI-CHIA;HUANG JUNG-SHOU
分类号 G06F3/044 主分类号 G06F3/044
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