Invention Grant
- Patent Title: Evaluation method and evaluation device for a capacitive contact sensor
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Application No.: US14129419Application Date: 2012-06-28
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Publication No.: US09753070B2Publication Date: 2017-09-05
- Inventor: Stefan Burger , Holger Steffens
- Applicant: Stefan Burger , Holger Steffens
- Applicant Address: US AZ Chandler
- Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee Address: US AZ Chandler
- Agency: Slayden Grubert Beard PLLC
- Priority: DE102011078534 20110701
- International Application: PCT/EP2012/062651 WO 20120628
- International Announcement: WO2013/004603 WO 20130110
- Main IPC: G01R27/26
- IPC: G01R27/26 ; H03K17/96 ; G01D5/24

Abstract:
In an evaluation method for a capacitive contact sensor with at least one transmitting and at least one receiving electrode, which are able to be brought into a capacitive coupling, —at the at least one receiving or sensor electrode a measurement signal is tapped, which represents the temporal course of the coupling capacitance between the at least one transmitting electrode and the at least one receiving electrode and the temporal course of the capacitive load of the sensor electrode, respectively, —a reference signal is created from the measurement signal, and —at least one detection signal is created, when the reference signal meets at least one detection criterion. An evaluation device may be coupled with at least one transmitting electrode and at least one receiving electrode or with at least one sensor electrode of the capacitive contact sensor and is adapted to carry out the above evaluation method.
Public/Granted literature
- US20150015279A1 Evaluation Method and Evaluation Device for a Capacitive Contact Sensor Public/Granted day:2015-01-15
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