Invention Grant
- Patent Title: Sensor design for capacitance sensing
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Application No.: US16581728Application Date: 2019-09-24
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Publication No.: US11416086B2Publication Date: 2022-08-16
- Inventor: Kanke Gao , Wei Hsin Yao , Yingxuan Li , Weijun Yao
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kubota & Basol LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/0354 ; G06F3/044

Abstract:
Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.
Public/Granted literature
- US20200019275A1 SENSOR DESIGN FOR CAPACITANCE SENSING Public/Granted day:2020-01-16
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