Title:
SENSOR SWITCH WITH SPREAD SPECTRUM SENSING SIGNAL AND SYNCHRONOUS RECTIFIER
Document Type and Number:
WIPO Patent Application WO/2019/137991
Kind Code:
A1
Abstract:
A capacitive sensor comprises a sensor electrode connected to a signal generation circuit and a signal evaluation circuit. The signal generation circuit comprising a signal generator being a noise generator or a pseudo-noise generator, the signal evaluation circuit comprising a synchronous rectifier. The synchronous rectifier is connected for synchronization to the signal generator.
Inventors:
CHRIST BERNHARD (DE)
OLDENDORF DIRK (DE)
SCHÜLER JENS (DE)
HÜTTENHOFER KILIAN (DE)
OLDENDORF DIRK (DE)
SCHÜLER JENS (DE)
HÜTTENHOFER KILIAN (DE)
Application Number:
PCT/EP2019/050528
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
Assignee:
CAPTRON ELECT GMBH (DE)
International Classes:
H03K17/955
Foreign References:
| US20080186034A1 | 2008-08-07 | |||
| US9157898B1 | 2015-10-13 | |||
| US8823393B2 | 2014-09-02 |
Other References:
ANONYMOUS: "System Description [The Human Condition]", 9 June 2010 (2010-06-09), XP055531948, Retrieved from the Internet [retrieved on 20181210]
BRIAN HARRINGTON: "Low-Power Synchronous Demodulator Design Considerations", 1 May 2015 (2015-05-01), pages 1 - 5, XP055571517, Retrieved from the Internet [retrieved on 20190319]
BRIAN HARRINGTON: "Low-Power Synchronous Demodulator Design Considerations", 1 May 2015 (2015-05-01), pages 1 - 5, XP055571517, Retrieved from the Internet
Attorney, Agent or Firm:
LOHR, Georg (DE)
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