Patents by Inventor Klaus Grambichler

Klaus Grambichler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230152125
    Abstract: The herein disclosed innovative concept concerns a magnetic angle sensor and a method for operating the same. The sensor includes a magnetoresistive arrangement and a magnetic source being configured to be movable relative to the magnetoresistive arrangement. The magnetoresistive arrangement includes a first magnetoresistive element configured to generate a first output signal, a second magnetoresistive element configured to generate a second output signal, and a third magnetoresistive element configured to generate a third output signal. The first, second and third magnetoresistive elements are oriented relative to each other such that they form a symmetrical geometric arrangement with equal angular distances between each other.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 18, 2023
    Inventors: Joo Il PARK, Se Hwan KIM, Klaus GRAMBICHLER, Gernot BINDER
  • Patent number: 11442121
    Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, adjust an offset of the measurement signal according to an offset update algorithm and a first characteristic of the measurement signal, generate a pulsed output signal having pulses that are generated based on the adjusted measurement signal crossing the switching threshold, and selectively enable and disable the offset update algorithm based on a second characteristic of the measurement signal.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: September 13, 2022
    Inventors: Simone Fontanesi, Klaus Grambichler, Tobias Werth
  • Publication number: 20210018577
    Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, adjust an offset of the measurement signal according to an offset update algorithm and a first characteristic of the measurement signal, generate a pulsed output signal having pulses that are generated based on the adjusted measurement signal crossing the switching threshold, and selectively enable and disable the offset update algorithm based on a second characteristic of the measurement signal.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Applicant: Infineon Technologies AG
    Inventors: Simone FONTANESI, Klaus GRAMBICHLER, Tobias WERTH
  • Patent number: 10830839
    Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, compare the measurement signal to a switching threshold, generate a pulsed output signal having pulses that are generated based on the measurement signal crossing the switching threshold, measure a first characteristic of the measurement signal, update an offset of the switching threshold according to an offset update algorithm based on the measured first characteristic of the measurement signal, and selectively enable and disable the offset update algorithm based on at least a second characteristic of the measurement signal.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: November 10, 2020
    Assignee: Infineon Technologies AG
    Inventors: Simone Fontanesi, Klaus Grambichler, Tobias Werth
  • Publication number: 20200096577
    Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, compare the measurement signal to a switching threshold, generate a pulsed output signal having pulses that are generated based on the measurement signal crossing the switching threshold, measure a first characteristic of the measurement signal, update an offset of the switching threshold according to an offset update algorithm based on the measured first characteristic of the measurement signal, and selectively enable and disable the offset update algorithm based on at least a second characteristic of the measurement signal.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 26, 2020
    Applicant: Infineon Technologies AG
    Inventors: Simone FONTANESI, Klaus GRAMBICHLER, Tobias WERTH
  • Patent number: 10323962
    Abstract: A magnetic circuit may include a magnetic sensor. The magnetic sensor may determine an adjustment factor associated with calculating a variable switching threshold. The variable switching threshold may be a configurable switching threshold based on which the magnetic sensor provides outputs associated with a speed signal corresponding to a rotation of a tooth wheel. The magnetic sensor may provide an output, associated with the speed signal, based on the variable switching threshold.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 18, 2019
    Assignee: Infineon Technologies AG
    Inventors: Klaus Grambichler, Tobias Werth, Simon Hainz
  • Patent number: 10254303
    Abstract: A magnetic sensor may include a first sensing element and a second sensing element. The first sensing element may be capable of sensing a first component of a magnetic field that is non-parallel to an axis formed by an intersection of a first plane and a second plane. The first plane may be a plane in which a tooth wheel rotates, and the second plane may include a first surface of the first sensing element and a second surface of the second sensing element. The first component of the magnetic field may be on the second plane. The second sensing element may be capable of sensing a second component of the magnetic field. The second component of the magnetic field may be on the second plane.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 9, 2019
    Assignee: Infineon Technologies AG
    Inventors: Klaus Grambichler, Gernot Binder, Jooil Park, Sehwan Kim
  • Patent number: 10243724
    Abstract: A sensor device includes a memory circuit and a transmission circuit. The transmission circuit sends a first data signal to an external receiver in a first state of a read-out-mode of the sensor device, if an oscillation period of the oscillating quantity is longer than a period threshold. Further, the transmission circuit sends a second data signal to the external receiver in a second state of the read-out-mode, if the oscillation period of the oscillating quantity is shorter than the period threshold. The second data signal contains information on at least one of a first local extremum sensor data value and a succeeding second local extremum sensor data value.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: March 26, 2019
    Assignee: Infineon Technologies AG
    Inventors: Klaus Grambichler, Simon Hainz, Catalina-Petruta Juglan
  • Patent number: 9939410
    Abstract: A magnetic sensor may sense a magnetic field during a rotation of a wheel. The sensed magnetic field may represent a profile of the wheel during the rotation. The magnetic sensor may determine, based on the sensed magnetic field, information associated with a possible fault of at least one of the magnetic sensor or the wheel. The magnetic sensor may transmit a first set of output pulses corresponding to the profile of the wheel during the rotation. The first set of output pulses may be transmitted during the rotation of the wheel. The magnetic sensor may transmit a second set of output pulses that corresponds to the information associated with the possible fault.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 10, 2018
    Assignee: Infineon Technologies AG
    Inventors: Klaus Grambichler, Michael Burk Westpfahl
  • Patent number: 9846173
    Abstract: A speed sensor including an output data signal generator configured to generate an output data signal representing a state of a sensed element; and a multiplexer configured to multiplex the output data signal and an internal diagnostic data signal representing diagnostic data of the speed sensor into a combined data signal.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: December 19, 2017
    Assignee: Infineon Technologies AG
    Inventor: Klaus Grambichler
  • Publication number: 20170322233
    Abstract: A magnetic sensor may include a first sensing element and a second sensing element. The first sensing element may be capable of sensing a first component of a magnetic field that is non-parallel to an axis formed by an intersection of a first plane and a second plane. The first plane may be a plane in which a tooth wheel rotates, and the second plane may include a first surface of the first sensing element and a second surface of the second sensing element. The first component of the magnetic field may be on the second plane. The second sensing element may be capable of sensing a second component of the magnetic field. The second component of the magnetic field may be on the second plane.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Inventors: Klaus GRAMBICHLER, Gernot BINDER, Jooil PARK, Sehwan KIM
  • Publication number: 20170241812
    Abstract: A magnetic circuit may include a magnetic sensor. The magnetic sensor may determine an adjustment factor associated with calculating a variable switching threshold. The variable switching threshold may be a configurable switching threshold based on which the magnetic sensor provides outputs associated with a speed signal corresponding to a rotation of a tooth wheel. The magnetic sensor may provide an output, associated with the speed signal, based on the variable switching threshold.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 24, 2017
    Inventors: Klaus GRAMBICHLER, Tobias WERTH, Simon HAINZ
  • Publication number: 20170195754
    Abstract: A sensor device includes a memory circuit and a transmission circuit. The transmission circuit sends a first data signal to an external receiver in a first state of a read-out-mode of the sensor device, if an oscillation period of the oscillating quantity is longer than a period threshold. Further, the transmission circuit sends a second data signal to the external receiver in a second state of the read-out-mode, if the oscillation period of the oscillating quantity is shorter than the period threshold. The second data signal contains information on at least one of a first local extremum sensor data value and a succeeding second local extremum sensor data value.
    Type: Application
    Filed: March 13, 2017
    Publication date: July 6, 2017
    Inventors: Klaus Grambichler, Simon Hainz, Catalina-Petruta Juglan
  • Patent number: 9677911
    Abstract: At least one embodiment relates to magnetic field sensors being operable at different calibration modes, wherein the magnetic sensor is capable of switching between the different calibration modes during normal operation of the sensor. The switching may be possible in response to different motion types detected within the sensor. Such sensors may be used in vehicles such as cars, the sensors for example being part of the engine control system or the ABS. Another embodiment relates to a method of changing calibration modes during operation of sensors.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: June 13, 2017
    Assignee: Infineon Technologies AG
    Inventors: Klaus Grambichler, Simon Hainz
  • Publication number: 20170059526
    Abstract: A magnetic sensor may sense a magnetic field during a rotation of a wheel. The sensed magnetic field may represent a profile of the wheel during the rotation. The magnetic sensor may determine, based on the sensed magnetic field, information associated with a possible fault of at least one of the magnetic sensor or the wheel. The magnetic sensor may transmit a first set of output pulses corresponding to the profile of the wheel during the rotation. The first set of output pulses may be transmitted during the rotation of the wheel. The magnetic sensor may transmit a second set of output pulses that corresponds to the information associated with the possible fault.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 2, 2017
    Inventors: Klaus GRAMBICHLER, Michael Burk WESTPFAHL
  • Publication number: 20160218711
    Abstract: A speed sensor including an output data signal generator configured to generate an output data signal representing a state of a sensed element; and a multiplexer configured to multiplex the output data signal and an internal diagnostic data signal representing diagnostic data of the speed sensor into a combined data signal.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 28, 2016
    Inventor: Klaus Grambichler
  • Publication number: 20150211889
    Abstract: At least one embodiment relates to magnetic field sensors being operable at different calibration modes, wherein the magnetic sensor is capable of switching between the different calibration modes during normal operation of the sensor. The switching may be possible in response to different motion types detected within the sensor. Such sensors may be used in vehicles such as cars, the sensors for example being part of the engine control system or the ABS. Another embodiment relates to a method of changing calibration modes during operation of sensors.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 30, 2015
    Inventors: Klaus Grambichler, Simon Hainz