公开(公告)号：US12199575B2

公开(公告)日：2025-01-14

申请号：US18417561

申请日：2024-01-19

Applicant: Infineon Technologies AG

Inventor： Jose Luis Ceballos ,  Fulvio Ciciotti ,  Benno Muehlbacher ,  Andreas Wiesbauer

IPC: H03F3/183 ,  H04R3/00 ,  H04R19/04

Abstract: In accordance with an embodiment, a circuit includes: a first super source follower; a compensation circuit having a compensating node configured to provide a voltage of opposite phase of a voltage of an internal node of the first super source follower; and a first compensation capacitor coupled between an input of the first super source follower and the compensating node of the compensation circuit.

公开(公告)号：US20240114292A1

公开(公告)日：2024-04-04

申请号：US18532607

申请日：2023-12-07

Applicant: Infineon Technologies AG

Inventor： Marc Fueldner ,  Andreas Wiesbauer ,  Athanasios Kollias

IPC: H04R7/08 ,  B81B3/00 ,  H04R7/16 ,  H04R19/04

CPC classification number: H04R7/08 ,  B81B3/0021 ,  H04R7/16 ,  H04R19/04 ,  B81B2201/0257 ,  B81B2203/0127 ,  B81B2203/0353 ,  B81B2203/04 ,  H04R2201/003

Abstract: A system includes a first membrane, a second membrane and a third membrane spaced apart from one another, wherein the second membrane is between the first membrane and the third membrane, and the second membrane comprises a plurality of openings, a sealed low pressure chamber between the first membrane and the third membrane, and a plurality of electrodes in the sealed low pressure chamber

公开(公告)号：US11858808B2

公开(公告)日：2024-01-02

申请号：US17209853

申请日：2021-03-23

Applicant: Infineon Technologies AG

Inventor： Dietmar Straeussnigg ,  Niccoló De Milleri ,  Andreas Wiesbauer

IPC: B81B7/00 ,  B81B7/02 ,  H04R3/06

CPC classification number: B81B7/008 ,  B81B7/02 ,  H04R3/06 ,  B81B2201/0257 ,  H04R2201/003 ,  H04R2410/03

Abstract: A circuit includes a cross-talk compensation component including a power profile reconstruction component for reconstructing the power profile of a digital microphone coupled to a microelectromechanical (MEMS) device, wherein the power profile represents power consumption of the digital microphone over time between at least two operational modes of the digital microphone, and a reconstruction filter for modeling thermal and/or acoustic properties of the digital microphone; and a subtractor having a first input for receiving a signal from the digital microphone, a second input coupled to the cross-talk compensation component, and an output for providing a digital output signal.

公开(公告)号：US11750960B2

公开(公告)日：2023-09-05

申请号：US17451562

申请日：2021-10-20

Applicant: Infineon Technologies AG

Inventor： Jose Luis Ceballos ,  Hong Chen ,  Fulvio Ciciotti ,  Andreas Wiesbauer ,  Bernhard Wotruba

IPC: H04R3/00 ,  H04R29/00 ,  H04R1/08 ,  H03F3/183

CPC classification number: H04R1/08 ,  H03F3/183 ,  H03F2200/03 ,  H04R3/00 ,  H04R29/00

Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.

公开(公告)号：US20230121912A1

公开(公告)日：2023-04-20

申请号：US17451562

申请日：2021-10-20

Applicant: Infineon Technologies AG

Inventor： Jose Luis Ceballos ,  Hong Chen ,  Fulvio Ciciotti ,  Andreas Wiesbauer ,  Bernhard Wotruba

IPC: H04R1/08 ,  H03F3/183

Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.

公开(公告)号：US20220381635A1

公开(公告)日：2022-12-01

申请号：US17660135

申请日：2022-04-21

Applicant: Infineon Technologies AG

Inventor： Andreas Wiesbauer ,  Alessandro Caspani ,  Christian Jenkner ,  Athanasios Kollias

IPC: G01L9/02 ,  G01L19/00

Abstract: A controller for an environmental sensor provides digital environmental measurement values from analog environmental measurements performed by analog circuitry, the digital environmental measurement values lying in a global scale range. The controller subjects the global scale range to a subdivision into scale subranges that are proper subranges of the global scale range. The controller selects, among the scale subranges, one scale subrange in which an analog environmental measurement is to be performed, selects an offset information and a gain information that are associated with the selected scale subrange and that are indicative of an offset and a gain to be applied by the analog circuitry to perform an analog environmental measurement in the selected scale subrange, and to provide the offset information and the gain information to the analog circuitry.

公开(公告)号：US11136237B2

公开(公告)日：2021-10-05

申请号：US16581997

申请日：2019-09-25

Applicant: INFINEON TECHNOLOGIES AG

Inventor： Werner Simbuerger ,  Eduardo Schittler Neves ,  Andreas Wiesbauer

IPC: B81B7/00 ,  B81B3/00

Abstract: A device for suppressing stray radiation includes a Micro-ElectroMechanical System (MEMS) sensor module and a conductive cage structure. The conductive cage structure may enclose the MEMS sensor module in order to suppress penetration of stray electromagnetic radiation with a stray wavelength λo into the conductive cage structure, and the conductive cage structure may be arranged to be thermally insulated from the MEMS sensor module. The device may also include a connecting line. The connecting line may be connected to the MEMS sensor module and fed through the conductive cage structure by a capacitive element.

公开(公告)号：US10317252B2

公开(公告)日：2019-06-11

申请号：US15074510

申请日：2016-03-18

Applicant: Infineon Technologies AG

Inventor： Andreas Wiesbauer ,  Christian Ebner ,  Ernesto Romani ,  Stephan Mechnig ,  Georgi Panov ,  Christian Jenkner ,  Benno Muehlbacher

IPC: G01D5/24 ,  G01L9/00

Abstract: In accordance with an embodiment, a method of performing a measurement with a capacitive sensor includes generating a periodic excitation signal that includes a series of pulses and smoothing edge transitions of the series of pulses to form a shaped periodic excitation signal that includes a flat region between the smoothed edge transitions. The method further includes providing the shaped periodic excitation signal to a first port of the capacitive sensor and measuring a signal provided by a second port of the capacitive sensor.

公开(公告)号：US10270460B1

公开(公告)日：2019-04-23

申请号：US16011272

申请日：2018-06-18

Applicant: Infineon Technologies AG

Inventor： Cesare Buffa ,  Fernando Cardes Garcia ,  Luis Hernandez-Corporales ,  Carlos Andres Perez Cruz ,  Andres Quintero Alonso ,  Andreas Wiesbauer

IPC: H03M1/12 ,  H03M1/14 ,  H03M1/00 ,  H03M1/46

Abstract: An analog-to-digital converter includes a ring oscillator having an input for receiving an analog signal, a coarse Gray code counter having a first input coupled to a first output of the ring oscillator and a second input for receiving a clock signal, a fine counter having first inputs coupled to secondary outputs of the ring oscillator and a second input for receiving the clock signal, a first difference generator having an input coupled to the output of the coarse counter, a second difference generator having an input coupled to the output of the fine counter, and an adder having a first input coupled to the output of the first difference generator, a second input coupled to the output of the second difference generator, and an output for providing a digital signal corresponding to the analog signal.

公开(公告)号：US10175130B2

公开(公告)日：2019-01-08

申请号：US15074649

申请日：2016-03-18

Applicant: Infineon Technologies AG

Inventor： Athanasios Kollias ,  Matthias Friedrich Herrmann ,  Christian Ebner ,  Ernesto Romani ,  Stephan Mechnig ,  Joseph Hufschmitt ,  Andreas Wiesbauer ,  Christian Jenkner

IPC: G01L9/00 ,  G01L9/12

Abstract: An embodiment includes a method of performing a measurement using a micro-electro-mechanical system (MEMS) device that includes a plurality of MEMS sensors having different resonant frequencies. The method includes applying an excitation signal to a first port of the MEMS device such that each of the plurality of the MEMS sensors is stimulated by the excitation signal. The method further includes measuring a signal at a second port of the MEMS device and determining a measured value based on the measuring the signal.