Invention Grant
- Patent Title: Temperature compensation for transparent force sensors
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Application No.: US14793987Application Date: 2015-07-08
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Publication No.: US09851845B2Publication Date: 2017-12-26
- Inventor: John S. Smith , Manu Agarwal
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Brownstein Hyatt Farber Schreck, LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G06F3/045 ; G01L1/18 ; G01L1/20 ; G01L1/16 ; G01L1/00 ; G01L1/22 ; G01L25/00

Abstract:
An optically transparent force sensor element compares a force reading from a first strain-sensitive film element with a second strain-sensitive film element, having a compliant and thermally conductive intermediate layer positioned therebetween to compensate for temperature changes. While in the idle state, the optically transparent force sensor can be periodically calibrated to account for additional changes in temperature.
Public/Granted literature
- US20160048266A1 Temperature Compensation for Transparent Force Sensors Public/Granted day:2016-02-18
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