公开(公告)号：US20240310507A1

公开(公告)日：2024-09-19

申请号：US18435515

申请日：2024-02-07

Applicant: Infineon Technologies AG

Inventor： Dirk HAMMERSCHMIDT ,  Christof MICHENTHALER

IPC: G01S13/75 ,  G01D5/48

CPC classification number: G01S13/751 ,  G01D5/48 ,  G01D2205/10 ,  G01D2205/20 ,  G01D2205/90

Abstract: A sensor system includes at least one transmitter; a receiver circuit; and a metamaterial layer having a relative position that is configured to vary relative to the transmitter. The metamaterial layer includes an array of elementary structures arranged within a coordinate system of the metamaterial layer. The array of elementary structures includes a first metamaterial characteristic that changes along a first coordinate variation of the coordinate system and a second metamaterial characteristic, different from the first metamaterial characteristic, that changes along a second coordinate variation of the coordinate system. The at least one transmitter is configured to transmit an electromagnetic transmit wave toward the metamaterial layer. The metamaterial layer is configured to convert the electromagnetic transmit wave into an electromagnetic receive wave based on the relative position. The receiver circuit is configured to receive the electromagnetic receive wave and determine the relative position based on the electromagnetic receive wave.

公开(公告)号：US20230131760A1

公开(公告)日：2023-04-27

申请号：US17509724

申请日：2021-10-25

Applicant: Infineon Technologies AG

Inventor： Alexander SCHOSSMANN ,  Alexander BERGMANN ,  Franz Michael DARRER ,  Dirk HAMMERSCHMIDT ,  Christof MICHENTHALER

IPC: G01L3/10

Abstract: A torque measurement system includes an outer rotational shaft and an inner rotational shaft both configured to rotate about a rotational axis. A rotation of the inner rotational shaft causes a rotation of the outer rotational shaft via a coupling structure. At least one torque applied to the inner rotational shaft is translated into a first torque-dependent angular shift between the shafts. A first metamaterial track is coupled to the outer rotational shaft and configured to co-rotate with the outer rotational shaft. A second metamaterial track is coupled to the inner rotational shaft and configured to co-rotate with the inner rotational shaft. The tracks are configured to convert an electro-magnetic transmit signal into a first electro-magnetic receive signal based on the first torque-dependent angular shift and a receiver is configured to receive the electro-magnetic receive signal and measure the at least one torque based on the electro-magnetic receive signal.

公开(公告)号：US20220263806A1

公开(公告)日：2022-08-18

申请号：US17249030

申请日：2021-02-17

Applicant: Infineon Technologies AG

Inventor： Dirk HAMMERSCHMIDT ,  Christof MICHENTHALER

IPC: H04L29/06

Abstract: A sensor may obtain sensor data. The sensor may transmit the sensor data to a controller via a sensor-controller interface. The sensor may determine, based on the sensor data, a security characteristic for the sensor data. The sensor may encrypt the security characteristic to generate an encrypted security characteristic. The sensor may transmit the encrypted security characteristic to the controller via the sensor-controller interface.

公开(公告)号：US20220178725A1

公开(公告)日：2022-06-09

申请号：US17542884

申请日：2021-12-06

Applicant: Infineon Technologies AG

Inventor： Benjamin KOLLMITZER ,  Wolfgang GRANIG ,  Christof MICHENTHALER ,  Mario MOTZ ,  Peter Slama

IPC: G01D18/00 ,  G01P3/44 ,  G01D5/14 ,  G01D5/16

Abstract: Methods and apparatuses for comparing redundant signals in functional safe systems are provided, including methods for mitigating differing signal path delays and for signal weighting of the redundant signals are proposed. An Apparatus includes a first signal path for a first measurement signal of a physical quantity, the first signal path having a first signal propagation delay; a second signal path for a second measurement signal of the physical quantity, the second signal path having a second signal propagation delay different from the first signal propagation delay; a delay compensation circuit configured to compensate for a difference between the first and second signal propagation delays to generate delay-compensated first and second measurement signals; and comparison circuitry configured to compare the delay-compensated first and second measurement signals.

公开(公告)号：US20210102853A1

公开(公告)日：2021-04-08

申请号：US16591806

申请日：2019-10-03

Applicant: Infineon Technologies AG

Inventor： Dirk HAMMERSCHMIDT ,  Christof MICHENTHALER

IPC: G01L3/10

Abstract: A method of determining a torque applied to a rotatable shaft is provided. The method includes transmitting a first electro-magnetic transmit signal towards a first mutually coupled structure mechanically coupled to the rotatable shaft, converting, by the first mutually coupled multitrack structure, the first electro-magnetic transmit signal into a first electro-magnetic receive signal; receiving the first electro-magnetic receive signal; evaluating the received first electro-magnetic receive signal; and determining the torque applied to the rotatable shaft based on the evaluated first electro-magnetic receive signal.