Patents by Inventor Wolfgang Granig

Wolfgang Granig 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).

  • Patent number: 9606194
    Abstract: A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 28, 2017
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Dirk Hammerschmidt, Udo Ausserlechner
  • Patent number: 9590507
    Abstract: A method in a switched-mode power supply (SMPS) and SMPS circuits are provided. The method and circuits use bang-bang regulation to provide for an auxiliary power supply that can be used to power a controller of the SMPS. The additional circuitry required to achieve the method and circuits is minimal and represents advantages over techniques that require an additional power supply or require an auxiliary winding in a transformer. The bang-bang regulation controls switch devices within the SMPS such that a normally-on switch device is enabled while a normally-off switch device is disabled for some period of time. During this period, current is supplied to the SMPS controller and an associated energy-storage device.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 7, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Herfurth, Rolf Weis, Wolfgang Granig
  • Patent number: 9534932
    Abstract: An XMR angle sensor arrangement with a safety mechanism comprises an XMR angle sensor having a sensing area for sensing an in-plane magnetic field and for outputting a sensor signal based on the in-plane magnetic field component sensed in the sensing area; a permanent magnet, which is rotatably arranged with respect to the XMR angle sensor to generate a first in-plane magnetic field component in the sensing area of the XMR angle sensor; an excitation current rail path, which is arranged proximate to the sensing area of the XMR angle sensor; and an excitation current provider configured to provide the excitation current rail path with an excitation signal having a excitation signal strength, wherein the excitation signal strength of the excitation signal is chosen to generate a second in-plane magnetic field component in the sensing area of the XMR angle sensor which results, due to a super position of the first and second in-plane magnetic field components, in an expected change of the direction of the result
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: January 3, 2017
    Assignee: Infineon Technologies AG
    Inventor: Wolfgang Granig
  • Patent number: 9506996
    Abstract: Embodiments relate to an apparatus comprising a first measurement bridge circuit. The first measurement bridge circuit comprises a first half bridge for providing a first half bridge signal in response to a quantity to be measured and a second half bridge for providing a second half bridge signal in response to the quantity. The apparatus further comprises a second measurement bridge circuit. The second measurement bridge circuit comprises a third half bridge for providing a third half bridge signal in response to the quantity and a fourth half bridge for providing a fourth half bridge signal in response to the quantity. The apparatus also comprises an error detector. The error detector is configured to determine an error signal indicative of an error of the measurement of the quantity based on a combination of the first, the second, the third and the fourth half bridge signal.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: November 29, 2016
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Harald Witschnig, Andrea Morici
  • Publication number: 20160231371
    Abstract: Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.
    Type: Application
    Filed: April 19, 2016
    Publication date: August 11, 2016
    Inventors: Friedrich Rasbornig, Mario Motz, Dirk Hammerschmidt, Ferdinand Gastinger, Bernhard Schaffer, Wolfgang Granig
  • Publication number: 20160202328
    Abstract: Embodiments relate to magnetoresistive sensors suitable for both angle and field strength sensing. In an embodiment, a sensor comprises two different magnetoresistive (xMR) sensor components for sensing two different aspects or characteristics of a magnetic field. In an embodiment, the first xMR sensor component is configured for magnetic field angle or rotation sensing, while the second xMR sensor component is configured for magnetic field strength sensing. In an embodiment, the second xMR sensor component is configured for magnetic field strength sensing in two dimensions. The second xMR sensor therefore can determine, in embodiment, whether the field sensed with respect to angle or rotation by the first xMR sensor component is of sufficient strength or meets a minimum magnitude threshold. If the minimum threshold is not met, an alarm or alert can be provided.
    Type: Application
    Filed: March 23, 2016
    Publication date: July 14, 2016
    Inventors: Wolfgang Granig, Juergen Zimmer
  • Publication number: 20160182109
    Abstract: Embodiments relate to a controller operable to transmit digital data messages to a receiver via a communication link having at least a first and a second transmission path, the controller comprising a first signal terminal the first transmission path and a second signal terminal for the second transmission path. The first signal terminal is operable to digitally transmit a first message to the receiver according to a first transmission technique and the second signal terminal is being operable to digitally transmit a second message to the receiver according to a second, different transmission technique.
    Type: Application
    Filed: March 1, 2016
    Publication date: June 23, 2016
    Inventors: Friedrich Rasbornig, Wolfgang Granig, Bernhard Schaffer, Wolfgang Scherr, Michael Strasser
  • Patent number: 9346441
    Abstract: Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: May 24, 2016
    Assignee: Infineon Technologies AG
    Inventors: Friedrich Rasbornig, Mario Motz, Dirk Hammerschmidt, Ferdinand Gastinger, Bernhard Schaffer, Wolfgang Granig
  • Patent number: 9316706
    Abstract: Embodiments relate to magnetoresistive sensors suitable for both angle and field strength sensing. A sensor can comprise two magnetoresistive (xMR) sensor components for sensing two different aspects/characteristics of a magnetic field. The first xMR sensor component can be configured for magnetic field angle or rotation sensing, while the second xMR sensor component is configured for magnetic field strength sensing. The second xMR sensor component can be configured for magnetic field strength sensing in two dimensions. In an embodiment, the second xMR sensor can be sensitive to lower magnetic fields, while the first xMR sensor can be sensitive to relatively higher magnetic fields. In an exemplary operation, the second xMR sensor can determine whether the field sensed with respect to angle or rotation by the first xMR sensor component is of sufficient strength to increase the accuracy of the angle or rotation of the field sensed by the first xMR sensor.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: April 19, 2016
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Juergen Zimmer
  • Publication number: 20160084684
    Abstract: A sensor device using verification includes a sensor component and a verification component. The sensor component is configured to generate first data and second data. The verification component is configured to analyze the first data and the second data and generate verification data based on the first data and the second data.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Inventors: Wolfgang Granig, Dirk Hammerschmidt
  • Patent number: 9200924
    Abstract: The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: December 1, 2015
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Gernot Binder
  • Publication number: 20150253157
    Abstract: An XMR angle sensor arrangement with a safety mechanism comprises an XMR angle sensor having a sensing area for sensing an in-plane magnetic field and for outputting a sensor signal based on the in-plane magnetic field component sensed in the sensing area; a permanent magnet, which is rotatably arranged with respect to the XMR angle sensor to generate a first in-plane magnetic field component in the sensing area of the XMR angle sensor; an excitation current rail path, which is arranged proximate to the sensing area of the XMR angle sensor; and an excitation current provider configured to provide the excitation current rail path with an excitation signal having a excitation signal strength, wherein the excitation signal strength of the excitation signal is chosen to generate a second in-plane magnetic field component in the sensing area of the XMR angle sensor which results, due to a super position of the first and second in-plane magnetic field components, in an expected change of the direction of the result
    Type: Application
    Filed: March 7, 2014
    Publication date: September 10, 2015
    Inventor: Wolfgang Granig
  • Publication number: 20150194992
    Abstract: A signal interface for a receiver includes a first receiver module configured to receive a first message related to a content. The first receiver module is configured to generate a first adapted message based on the first message and a first transformation protocol. The signal interface further includes a second receiver module configured to receive a second message related to the content. The second receiver module is configured to generate a second adapted message based on the second message and a second transformation protocol. The first transformation protocol associated with the first receiver module and the second transformation protocol associated with the second receiver module are different.
    Type: Application
    Filed: January 23, 2015
    Publication date: July 9, 2015
    Inventors: Friedrich Rasbornig, Robert Hermann, Wolfgang Granig, Bernhard Schaffer, Wolfgang Scherr, Michael Strasser
  • Publication number: 20150130446
    Abstract: The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Inventors: Wolfgang Granig, Gernot Binder
  • Publication number: 20150108971
    Abstract: Embodiments relate to an apparatus comprising a first measurement bridge circuit. The first measurement bridge circuit comprises a first half bridge for providing a first half bridge signal in response to a quantity to be measured and a second half bridge for providing a second half bridge signal in response to the quantity. The apparatus further comprises a second measurement bridge circuit. The second measurement bridge circuit comprises a third half bridge for providing a third half bridge signal in response to the quantity and a fourth half bridge for providing a fourth half bridge signal in response to the quantity. The apparatus also comprises an error detector. The error detector is configured to determine an error signal indicative of an error of the measurement of the quantity based on a combination of the first, the second, the third and the fourth half bridge signal.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Inventors: Wolfgang Granig, Harald Witschnig, Andrea Morici
  • Publication number: 20150070042
    Abstract: Integrated circuit systems, such as sensor systems, having on-board-diagnostic (OBD) circuits for the detection of errors presenting internal to the systems are disclosed, along with related methods. In one embodiment, an ADC multiplexer receives analog output readback from an output driver and provides a signal triggering an OBD circuit for internal error indication performed completely independent of digital-to-analog converters (DAC) and output drivers, which can be the point of failure.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Applicant: Infineon Technologies AG
    Inventors: Wolfgang Granig, Harald Witschnig, Andrea Morici
  • Patent number: 8952683
    Abstract: The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: February 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Gernot Binder
  • Publication number: 20150025850
    Abstract: A sensor interface operates to communicate a sensed quantity along one or more processing pathways and in different data representations. The signal representations can be swapped along one or more locations of the signal processing branches. These branches are independent from one another and combined at an interface component for transmission along a single path or node for a control unit.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 22, 2015
    Inventors: Christian Reidl, Wolfgang Granig, Harald Witschnig, Dirk Hammerschmidt
  • Publication number: 20150016163
    Abstract: A detector for detecting an occurrence of a current strength of interest of a current of a signal to be sensed includes a magnetoresistive structure and a detection unit. The magnetoresistive structure varies a resistance depending on a magnetic field caused by the current of the signal to be sensed. Further, the detection unit generates and provides a current detection signal indicating an occurrence of the current strength of interest based on a detected magnitude of the varying resistance of the magnetoresistive structure.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Siegfried Krainer, Wolfgang Marbler, Wolfgang Granig
  • Publication number: 20140253106
    Abstract: A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: Infineon Technologies AG
    Inventors: Wolfgang Granig, Dirk Hammerschmidt, Udo Ausserlechner