Invention Grant
- Patent Title: Capacitive object recognition using adjustable electrode
- Patent Title (中): 使用可调节电极进行电容对象识别
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Application No.: US12122332Application Date: 2008-05-16
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Publication No.: US08175774B2Publication Date: 2012-05-08
- Inventor: Armin Satz , Dirk Hammerschmidt , Mario Motz , Tobias Werth
- Applicant: Armin Satz , Dirk Hammerschmidt , Mario Motz , Tobias Werth
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Dicke, Billig & Czaja, PLLC
- Main IPC: B62R22/00
- IPC: B62R22/00

Abstract:
A system for capacitive object recognition including a pair of electrodes, one of the electrodes having an adjustable parameter, and a controller modeling current pathways formed by interaction of an object with an electric field between the pair electrodes as a network of capacitors. The controller is configured to set the adjustable parameter to a first setting and to apply a set of alternating current voltages to the pair electrodes and measure a resulting first set of current values at each of the electrodes, configured to set the adjustable parameter to a second setting and apply the set of alternating current voltages to the pair of electrodes and measure a resulting second set of current values at each of the electrodes, and configured to determine values for up to all capacitors of the network of capacitors based on the first and second sets of current values.
Public/Granted literature
- US20100145580A1 CAPACITIVE OBJECT RECOGNITION USING ADJUSTABLE ELECTRODE Public/Granted day:2010-06-10
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