Invention Grant
- Patent Title: Signal processing arrangement, sensor arrangement and signal processing method
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Application No.: US16083206Application Date: 2017-04-05
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Publication No.: US10523234B2Publication Date: 2019-12-31
- Inventor: Thomas Christen , Colin Steele , Thomas Froehlich
- Applicant: ams AG
- Applicant Address: AT Premstaetten
- Assignee: ams AG
- Current Assignee: ams AG
- Current Assignee Address: AT Premstaetten
- Agency: Fish & Richardson P.C.
- Priority: EP16165986 20160419
- International Application: PCT/EP2017/058119 WO 20170405
- International Announcement: WO2017/182272 WO 20171026
- Main IPC: H03M3/00
- IPC: H03M3/00 ; H03M1/12 ; H03M1/68

Abstract:
A signal processing arrangement has a signal input for connecting a capacitive sensor. An amplifier circuit is coupled between the signal input and a feedback point. A loop filter is coupled downstream to the feedback point. A quantizer is connected downstream to the loop filter and provides a multi-bit output word. The multi-bit output word consists of one or more higher significance bits and one or more lower significance bits. A first feedback path is coupled between a quantizer and the feedback point for providing a first feedback signal to the feedback point being representative of the one or more lower significance bits. A second feedback path is coupled to the quantizer for providing a second feedback signal to the signal input being representative of the one or more higher significance bits.
Public/Granted literature
- US20190115932A1 SIGNAL PROCESSING ARRANGEMENT, SENSOR ARRANGEMENT AND SIGNAL PROCESSING METHOD Public/Granted day:2019-04-18
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