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公开(公告)号：US10775927B2
公开(公告)日：2020-09-15
申请号：US16055922
申请日：2018-08-06
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Youngjin Wang , Tae-gil Kang
Abstract: A data frame in a touch capacitive sensing circuit includes both mutual capacitance data and self capacitance data. The mutual capacitance data and self capacitance data of the frame are filtered to define mutual capacitance and self capacitance islands. Centroids of the mutual capacitance and self capacitance islands are calculated and then processed in a weighted mixing operation to produce a hybrid centroid that more accurately locates the coordinates of a detected touch/hover.
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公开(公告)号：US11093097B2
公开(公告)日：2021-08-17
申请号：US16984344
申请日：2020-08-04
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Youngjin Wang , Tae-gil Kang
Abstract: A data frame in a touch capacitive sensing circuit includes both mutual capacitance data and self capacitance data. The mutual capacitance data and self capacitance data of the frame are filtered to define mutual capacitance and self capacitance islands. Centroids of the mutual capacitance and self capacitance islands are calculated and then processed in a weighted mixing operation to produce a hybrid centroid that more accurately locates the coordinates of a detected touch/hover.
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