Invention Grant
- Patent Title: Signal processing for a capacitive sensor system with robustness to noise
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Application No.: US15063051Application Date: 2016-03-07
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Publication No.: US09678192B2Publication Date: 2017-06-13
- Inventor: Axel Heim , Martin Hoch
- Applicant: MICROCHIP TECHNOLOGY GERMANY GMBH
- Applicant Address: DE Rosenheim
- Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
- Current Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
- Current Assignee Address: DE Rosenheim
- Agency: Slayden Grubert Beard PLLC
- Main IPC: G01R27/26
- IPC: G01R27/26 ; G01R35/00 ; G01D5/24 ; G06F3/044 ; H03K17/96
Abstract:
A capacitive sensor includes a transmit electrode configured to provide an alternating electric field to a sensor; one or more receive electrodes for detecting variations in the alternating electric field; and an adaptive frequency adjustment unit configured to adjust an operating frequency of the alternating electric field responsive to detection of a noise measure, such as noise power.
Public/Granted literature
- US20160187450A1 Signal Processing For A Capacitive Sensor System With Robustness To Noise Public/Granted day:2016-06-30
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