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).
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Publication number: 20230152125Abstract: 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: ApplicationFiled: November 9, 2022Publication date: May 18, 2023Inventors: Joo Il PARK, Se Hwan KIM, Klaus GRAMBICHLER, Gernot BINDER
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Patent number: 11442121Abstract: 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: GrantFiled: October 6, 2020Date of Patent: September 13, 2022Inventors: Simone Fontanesi, Klaus Grambichler, Tobias Werth
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Publication number: 20210018577Abstract: 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: ApplicationFiled: October 6, 2020Publication date: January 21, 2021Applicant: Infineon Technologies AGInventors: Simone FONTANESI, Klaus GRAMBICHLER, Tobias WERTH
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Patent number: 10830839Abstract: 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: GrantFiled: September 25, 2018Date of Patent: November 10, 2020Assignee: Infineon Technologies AGInventors: Simone Fontanesi, Klaus Grambichler, Tobias Werth
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Publication number: 20200096577Abstract: 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: ApplicationFiled: September 25, 2018Publication date: March 26, 2020Applicant: Infineon Technologies AGInventors: Simone FONTANESI, Klaus GRAMBICHLER, Tobias WERTH
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Patent number: 10323962Abstract: 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: GrantFiled: February 24, 2016Date of Patent: June 18, 2019Assignee: Infineon Technologies AGInventors: Klaus Grambichler, Tobias Werth, Simon Hainz
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Patent number: 10254303Abstract: 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: GrantFiled: May 9, 2016Date of Patent: April 9, 2019Assignee: Infineon Technologies AGInventors: Klaus Grambichler, Gernot Binder, Jooil Park, Sehwan Kim
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Patent number: 10243724Abstract: 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: GrantFiled: March 13, 2017Date of Patent: March 26, 2019Assignee: Infineon Technologies AGInventors: Klaus Grambichler, Simon Hainz, Catalina-Petruta Juglan
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Patent number: 9939410Abstract: 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: GrantFiled: September 1, 2015Date of Patent: April 10, 2018Assignee: Infineon Technologies AGInventors: Klaus Grambichler, Michael Burk Westpfahl
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Patent number: 9846173Abstract: 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: GrantFiled: January 26, 2015Date of Patent: December 19, 2017Assignee: Infineon Technologies AGInventor: Klaus Grambichler
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Publication number: 20170322233Abstract: 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: ApplicationFiled: May 9, 2016Publication date: November 9, 2017Inventors: Klaus GRAMBICHLER, Gernot BINDER, Jooil PARK, Sehwan KIM
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Publication number: 20170241812Abstract: 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: ApplicationFiled: February 24, 2016Publication date: August 24, 2017Inventors: Klaus GRAMBICHLER, Tobias WERTH, Simon HAINZ
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Publication number: 20170195754Abstract: 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: ApplicationFiled: March 13, 2017Publication date: July 6, 2017Inventors: Klaus Grambichler, Simon Hainz, Catalina-Petruta Juglan
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Patent number: 9677911Abstract: 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: GrantFiled: January 28, 2015Date of Patent: June 13, 2017Assignee: Infineon Technologies AGInventors: Klaus Grambichler, Simon Hainz
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Publication number: 20170059526Abstract: 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: ApplicationFiled: September 1, 2015Publication date: March 2, 2017Inventors: Klaus GRAMBICHLER, Michael Burk WESTPFAHL
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Publication number: 20160218711Abstract: 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: ApplicationFiled: January 26, 2015Publication date: July 28, 2016Inventor: Klaus Grambichler
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Publication number: 20150211889Abstract: 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: ApplicationFiled: January 28, 2015Publication date: July 30, 2015Inventors: Klaus Grambichler, Simon Hainz