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    Encrypted communication of a sensor data characteristic
    51.
    发明授权
    Encrypted communication of a sensor data characteristic 有权

    公开(公告)号：US11671409B2

    公开(公告)日：2023-06-06

    申请号：US17249030

    申请日：2021-02-17

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt ,  Christof Michenthaler

    IPC: H04L9/40

    CPC classification number: H04L63/0428

    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.

    Safety mechanism monitoring of autocalibrated compensation parameters
    53.
    发明授权
    Safety mechanism monitoring of autocalibrated compensation parameters 有权

    公开(公告)号：US11550001B2

    公开(公告)日：2023-01-10

    申请号：US16788704

    申请日：2020-02-12

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt ,  Udo Hafner ,  Benjamin Kollmitzer

    IPC: G01R33/00 ,  G01B7/30 ,  G06F11/00

    Abstract: An autocalibration method includes generating at least one sensor signal in response to measuring a physical quantity; compensating the at least one sensor signal based on at least one compensation parameter to generate at least one compensated sensor signal; generating the at least one compensation parameter based on the at least one sensor signal or the at least one compensated sensor signal; comparing each of the at least one compensation parameter to a respective tolerance range; on a condition that each of the at least one compensation parameter is within its respective tolerance range, transmitting the at least one compensation parameter as at least one validated compensation parameter to be used for compensating the at least one sensor signal; and on a condition that at least one of the at least one compensation parameter is not within its respective tolerance range, generating a fault detection signal.

    Pressure measuring arrangement including two pressure measurement sensors on a carrier
    54.
    发明授权
    Pressure measuring arrangement including two pressure measurement sensors on a carrier 有权

    公开(公告)号：US11513015B2

    公开(公告)日：2022-11-29

    申请号：US17110475

    申请日：2020-12-03

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: G01L19/00 ,  G01L13/00

    Abstract: A method of monitoring microelectromechanical system (MEMS) pressure sensors arranged on a carrier includes: generating a first measurement value by a first MEMS pressure sensor arranged on the carrier; generating a second measurement value by a second MEMS pressure sensor arranged on the carrier; and determining, by an integrated circuit, whether the first measurement value of the first MEMS pressure sensor corresponds to the second measurement value of the second MEMS pressure sensor in accordance with a predefined criterion, wherein the integrated circuit is arranged on the carrier and is coupled to the first MEMS pressure sensor and the second MEMS pressure sensor.

    Position sensor and position measurements using millimeter-wave metamaterial
    55.
    发明授权
    Position sensor and position measurements using millimeter-wave metamaterial 有权

    公开(公告)号：US11408977B2

    公开(公告)日：2022-08-09

    申请号：US16524543

    申请日：2019-07-29

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: G01S7/41 ,  H01Q15/14 ,  G01S13/06 ,  G01D5/48

    Abstract: A rotation sensor system includes a rotatable target object configured to rotate about a rotational axis in a rotation direction; a first millimeter-wave (mm-wave) metamaterial track coupled to the rotatable target object, where the first mm-wave metamaterial track is arranged around the rotational axis, and where the first mm-wave metamaterial track includes a first array of elementary structures having at least one first characteristic that changes around a perimeter of the first mm-wave metamaterial track; at least one transmitter configured to transmit a first electro-magnetic transmit signal towards the first mm-wave metamaterial track, where the first mm-wave metamaterial track converts the first electro-magnetic transmit signal into a first electro-magnetic receive signal; at least one receiver configured to receive the first electro-magnetic receive signal; and at least one processor configured to determine a rotational position of the rotatable target object based on the received first electro-magnetic receive signal.

    Detection of a discrete positional relationship between a magnetic field generator and a magnetic field sensor arrangement
    56.
    发明授权
    Detection of a discrete positional relationship between a magnetic field generator and a magnetic field sensor arrangement 有权

    公开(公告)号：US11255699B2

    公开(公告)日：2022-02-22

    申请号：US16902724

    申请日：2020-06-16

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt ,  Robert Hermann

    IPC: G01D5/14 ,  G01D5/16

    Abstract: By a relative movement between an arrangement of at least three magnetic field sensors and a magnetic field generator, different discrete positional relationships can be produced between the same. A first signal is calculated as a first linear combination using at least two of three sensor signals. It is checked whether the first signal uniquely indicates one of the different discrete positional relationships. If yes, it is determined that the arrangement is located in the one discrete positional relationship. If no, a second signal is calculated as a second linear combination using at least two of the three sensor signals, at least one of which differs from the sensor signals used in the calculation of the first signal, and at least the second signal is used to determine in which of the different discrete positional relationships the arrangement is located relative to the magnetic field generator.

    Signal pattern checksum
    59.
    发明授权
    Signal pattern checksum 有权

    公开(公告)号：US11055423B2

    公开(公告)日：2021-07-06

    申请号：US15941930

    申请日：2018-03-30

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: G06F21/60 ,  H03M13/00 ,  H03M13/09 ,  G06F21/64

    Abstract: A signal processor including a Pulse Width Modulation (PWM) encoder configured to encode data into a data PWM pattern; and a block encoder coupled to the PWM encoder, and configured to determine a checksum of the data PWM pattern, wherein the PWM encoder is further configured to encode the checksum into a checksum PWM pattern, and append the checksum PWM pattern on the data PWM pattern for transmission as a PWM signal.

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