Invention Grant
- Patent Title: Full-bridge strain-gauge array of finger thermal compensation
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Application No.: US15252420Application Date: 2016-08-31
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Publication No.: US10296148B2Publication Date: 2019-05-21
- Inventor: Tetsuo Tanemura , Tom R. Vandermeijden
- Applicant: Synaptics Incorporated
- Applicant Address: US CA San Jose
- Assignee: SYNAPTICS INCORPORATED
- Current Assignee: SYNAPTICS INCORPORATED
- Current Assignee Address: US CA San Jose
- Agency: Ferguson Braswell Fraser Kubasta PC
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
A force sensor having a strain gauge array including force sensing electrodes arranged in a full-bridge configuration comprising at least two of a first resistor type and at least two of a second resistor type, wherein the at least two of the first resistor type form a first force sensing node and the at least two of the second resistor type form a second force sensing node, a processing system communicatively coupled to the force sensing electrodes, the processing system being configured to receive a first signal from the first force sensing node and a second signal from the second force sensing node, wherein the first signal includes a thermal response, and the second signal includes the thermal response and an applied force, and remove the thermal response by comparing the first and second signals to obtain the applied force.
Public/Granted literature
- US20180059820A1 FULL-BRIDGE STRAIN-GAUGE ARRAY OF FINGER THERMAL COMPENSATION Public/Granted day:2018-03-01
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