- Patent Title: Using a printed circuit to offset charge during capacitive sensing
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Application No.: US14038466Application Date: 2013-09-26
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Publication No.: US09658722B2Publication Date: 2017-05-23
- Inventor: Adam Schwartz
- Applicant: Synaptics Incorporated
- Applicant Address: US CA San Jose
- Assignee: Synaptics Incorporated
- Current Assignee: Synaptics Incorporated
- Current Assignee Address: US CA San Jose
- Agency: Osha Liang LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
In a method of capacitive sensing an absolute capacitive sensing signal is driven through at least one of a plurality of routing traces of a printed circuit. Absolute capacitive sensing is performed with at least one sensor electrode of a plurality of sensor electrodes in a sensor electrode pattern. The at least one sensor electrode is coupled with the at least one of the plurality of routing traces. An offsetting signal is transmitted on a parallel conductor overlapping the at least one of the plurality of routing traces, such that charge is offset from the at least one of the plurality of routing traces during the absolute capacitive sensing.
Public/Granted literature
- US20150084876A1 USING A PRINTED CIRCUIT TO OFFSET CHARGE DURING CAPACITIVE SENSING Public/Granted day:2015-03-26
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