Invention Application
- Patent Title: Resistive force sensor with capacitive discrimination
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Application No.: US11826645Application Date: 2007-07-17
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Publication No.: US20090019949A1Publication Date: 2009-01-22
- Inventor: Fletcher R. Rothkopf , Stephen Zadesky
- Applicant: Fletcher R. Rothkopf , Stephen Zadesky
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Main IPC: G01L5/00
- IPC: G01L5/00 ; G01D1/00 ; G01R27/00

Abstract:
A resistive force sensor with capacitive discrimination is disclosed. According to an example of the disclosure, a sensor is directed to detect resistance and capacitance in an alternating fashion, the resistance indicating a force being applied to an input area of a device, and the capacitance indicating a proximity of a body part to the input area of the device, and the detected resistance and capacitance are utilized to determine whether the body part has pressed the input area of the device.
Public/Granted literature
- US09654104B2 Resistive force sensor with capacitive discrimination Public/Granted day:2017-05-16
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