Invention Grant
- Patent Title: Sensor switch with spread spectrum sensing signal and synchronous rectifier
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Application No.: US16896151Application Date: 2020-06-08
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Publication No.: US11307056B2Publication Date: 2022-04-19
- Inventor: Bernhard Christ , Dirk Oldendorf , Jens Schüler , Kilian Hüttenhofer
- Applicant: CAPTRON Electronic GmbH
- Applicant Address: DE Olching
- Assignee: CAPTRON Electronic GmbH
- Current Assignee: CAPTRON Electronic GmbH
- Current Assignee Address: DE Olching
- Agency: Quarles & Brady LLP
- Agent Yakov S. Sidorin
- Priority: EP18151060 20180110,EP18179754 20180626
- Main IPC: G01R27/26
- IPC: G01R27/26 ; G01D5/24 ; H03K17/955 ; H03K17/96
Abstract:
A capacitive sensor including a sensor electrode connected to a signal generation circuit and a signal evaluation circuit. The signal generation circuit contains a signal generator that is a noise generator or a pseudo-noise generator, the signal evaluation circuit includes a synchronous rectifier. The synchronous rectifier is connected for synchronization to the signal generator.
Public/Granted literature
- US20200318997A1 Sensor Switch with Spread Spectrum Sensing Signal and Synchronous Rectifier Public/Granted day:2020-10-08
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