Patents by Inventor Juergen Schaefer

Juergen Schaefer 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: 11942959
    Abstract: A calibration circuit, including: a signal generator circuit configured to generate a modulated analog input signal, which is based on a digital input word that is modulated; an Analog-to-Digital Converter (ADC) configured to convert an analog reference signal to a digital calibration word, wherein the analog reference signal is a low-pass-filtered version of the analog input signal generated by the signal generator circuit; and a feedback circuit configured to output the digital input word by adjusting the digital calibration word depending on a digital feedback signal, which is based on a modulated version of the analog reference signal, wherein the signal generator circuit, the ADC, and the feedback circuit are provided on a same chip.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 26, 2024
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, Stefan Koeck, Ralph Mueller-Eschenbach, Juergen Schaefer, Arndt Voigtlaender, David Zipperstein
  • Publication number: 20240088606
    Abstract: An electrical connector includes: at least a first housing part and a second housing part, one of the first housing part and the second housing part engaging, at least partially and concentrically, in an other of the first housing part and the second housing part in an engagement region, the first housing part and the second housing part being rotatable relative to one another in the engagement region about an axis of rotation. The first housing part and the second housing part each have a magnetic structure extending, at least in part, circumferentially on an inside or an outside in the engagement region, the respective magnetic structures interacting.
    Type: Application
    Filed: March 25, 2022
    Publication date: March 14, 2024
    Inventors: Hrvoje Babic, Ralf Beckmann, Martin Schaefers, Juergen Sahm, Markus Hermann, Markus Michel, Frank Brokmann, Holger Ritter, Markus Hanses
  • Patent number: 11926963
    Abstract: A method for determining the dryness of a fibrous web, in particular a tissue web, during the production of the fibrous web, is carried out in a machine including a drying cylinder, in particular a Yankee cylinder, to which at least one, preferably two, dryer hoods are assigned, and a reel-up for winding up the fibrous web. The determination of the dryness of the fibrous web is carried out before the drying cylinder on the basis of measured values which describe the following variables: the amount of solids in the fiber web at the reel-up, the amount of water in the fiber web at the reel-up, and the amount of water which is evaporated in the dryer hood or hoods. A method for controlling or regulating a machine for producing a fibrous web, a computer program and computer program product are also provided.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 12, 2024
    Assignee: Voith Patent GmbH
    Inventors: Jan Achtermann, Marcus Schwier, Marco Popp, Juergen Schaefer
  • Patent number: 11881861
    Abstract: Some examples relate to a system including a pulse modulation (PM) circuit having a PM input and a PM output. The system also includes a load circuit having a load circuit input, and an I/O pad coupling the PM output to the load circuit input. An asymmetry detection circuit has a first asymmetry detection (AD) input coupled to the PM output via a first feedback path, a second AD input coupled to an output node of the I/O pad via a second feedback path, and an AD output coupled to the PM input of the pulse modulation circuit via a control path.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 23, 2024
    Assignee: Infineon Technologies AG
    Inventors: Sunanda Manjunath, Ketan Dewan, Juergen Schaefer
  • Patent number: 11831306
    Abstract: According to an example, an electronic device includes a component, a supply line providing a supply voltage, a transistor with a control input, a linear first control loop, and a non-linear second control loop. The transistor outputs an output voltage to the component depending on a signal applied to the control input. The linear first control loop includes an ADC to convert an analog output voltage level into a digital measurement signal, a controller to generate a digital control signal for the transistor depending on the digital measurement signal, and a DAC to convert the digital control signal into a first analog control signal. The non-linear second control loop is configured to generate a second analog control signal depending on the analog output voltage level. The second analog control signal is superimposed with the first analog control signal and the combined control signals are fed to the control input of the transistor.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: November 28, 2023
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, David Zipperstein, Juergen Schaefer, Holger Dienst, Markus Bichl, Ralph Mueller-Eschenbach, Arndt Voigtlaender
  • Patent number: 11784657
    Abstract: An analog-to-digital device includes a sampling circuit for sampling an input signal. The sampling circuit stops sampling in response to obtaining a trigger signal. The analog-to-digital device includes an analog-to-digital converter circuit which includes an analog to digital converter (ADC) for converting a sampled input provided from the sampling circuit to digital output.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: October 10, 2023
    Assignee: Infineon Technologies AG
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer, David Schaffenrath
  • Publication number: 20230238949
    Abstract: Some examples relate to a system including a pulse modulation (PM) circuit having a PM input and a PM output. The system also includes a load circuit having a load circuit input, and an I/O pad coupling the PM output to the load circuit input. An asymmetry detection circuit has a first asymmetry detection (AD) input coupled to the PM output via a first feedback path, a second AD input coupled to an output node of the I/O pad via a second feedback path, and an AD output coupled to the PM input of the pulse modulation circuit via a control path.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 27, 2023
    Inventors: Sunanda Manjunath, Ketan Dewan, Juergen Schaefer
  • Patent number: 11705917
    Abstract: A device is provided for time measurement of a clock-based signal comprising a sample stage comprising a switching device that is driven by a control signal and a capacitance (Cs), wherein the sample stage is arranged to transform an analog input signal in an analog output signal, the device further comprising an analog-to-digital converter to convert the analog output signal into a digital output signal, wherein the input signal applied to the sample stage is a reference signal and wherein the clock-based signal is applied to the control signal. Also, an according method is suggested.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: July 18, 2023
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, Ketan Dewan, Rex Kho, Ralph Mueller-Eschenbach, Juergen Schaefer
  • Patent number: 11668763
    Abstract: An analog fault detection circuit is disclosed. The analog fault detection circuit comprises an input terminal, an input circuit path coupled to the input terminal at a first end and a first sampling switch coupled to the second end of the input circuit path. The first sampling switch is configured to sample an input path voltage at the second end of the input circuit path to provide a first analog to digital converter (ADC) input voltage. The analog fault detection circuit further comprises a first ADC conversion circuit configured to convert the first ADC input voltage to a first digital ADC output; and a first broken wire detection circuit coupled between the first sampling switch and the first ADC conversion circuit, and configured to adaptively pulldown or pullup the first ADC input voltage, in order to detect a fault associated with a first analog circuit path.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: June 6, 2023
    Assignee: Infineon Technologies AG
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer
  • Publication number: 20230128057
    Abstract: A system for executing an artificial neural network having a plurality of interconnected nodes, the system includes a memory storing weight values of the neural network. The memory can be configured to a store node value and a mask bit value for each of the plurality of nodes of the neural network. Further the system can include multiply and accumulate (MAC) units to perform operations for determining node values. The system includes a control unit circuitry that, during execution of the neural network, dynamically controls operations of the MAC units to cause a reduction in a number of calculations to be performed by the MAC units. The control unit circuitry causes the MAC units to perform operations involving a subset of the plurality of nodes to avoid performing operations involving nodes of the plurality nodes that are outside of the subset.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 27, 2023
    Inventors: Muhammad Hassan, Konrad Walluszik, Juergen Schaefer
  • Publication number: 20230106703
    Abstract: A calibration circuit, including: a signal generator circuit configured to generate a modulated analog input signal, which is based on a digital input word that is modulated; an Analog-to-Digital Converter (ADC) configured to convert an analog reference signal to a digital calibration word, wherein the analog reference signal is a low-pass-filtered version of the analog input signal generated by the signal generator circuit; and a feedback circuit configured to output the digital input word by adjusting the digital calibration word depending on a digital feedback signal, which is based on a modulated version of the analog reference signal, wherein the signal generator circuit, the ADC, and the feedback circuit are provided on a same chip.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 6, 2023
    Inventors: Mihail Jefremow, Stefan Koeck, Ralph Mueller-Eschenbach, Juergen Schaefer, Arndt Voigtlaender, David Zipperstein
  • Patent number: 11621717
    Abstract: A calibration circuit, including: a first analog-to-digital converter (ADC) configured to sample a nonlinear reference signal continuously at an equidistant sampling rate to generate a reference sampled signal; a trigger timer configured to generate trigger signals; a second ADC configured to sample a point of each of the nonlinear reference signal and repeated versions of the nonlinear reference signal in response to the respective trigger signals at equidistantly increasing delays, to generate a device-under-test (DUT) sampled voltage; and processing circuitry configured to estimate a differential nonlinearity (DNL) of the DUT sampled signal, estimate a DNL of the reference sampled signal, and compare the estimated DNL of the DUT sampled signal with the estimated DNL of the reference sampled signal, to generate a DNL performance indication signal of the second ADC.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: April 4, 2023
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, Ralph Mueller-Eschenbach, Juergen Schaefer, Arndt Voigtlaender, David Zipperstein
  • Publication number: 20220399886
    Abstract: According to an example, an electronic device includes a component, a supply line providing a supply voltage, a transistor with a control input, a linear first control loop, and a non-linear second control loop. The transistor outputs an output voltage to the component depending on a signal applied to the control input. The linear first control loop includes an ADC to convert an analog output voltage level into a digital measurement signal, a controller to generate a digital control signal for the transistor depending on the digital measurement signal, and a DAC to convert the digital control signal into a first analog control signal. The non-linear second control loop is configured to generate a second analog control signal depending on the analog output voltage level. The second analog control signal is superimposed with the first analog control signal and the combined control signals are fed to the control input of the transistor.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 15, 2022
    Inventors: Mihail Jefremow, David Zipperstein, Juergen Schaefer, Holger Dienst, Markus Bichl, Ralph Mueller-Eschenbach, Arndt Voigtlaender
  • Patent number: 11526389
    Abstract: A fault check circuit, including a first channel comparator to output a first channel comparator output signal indicating whether a first channel digital signal is outside of a first channel threshold range, wherein the first channel digital signal is A/D converted from a first channel analog signal; a second channel comparator to output a second channel comparator output signal indicating whether a second channel digital signal is outside of a second channel threshold range, wherein the second channel digital signal is A/D converted from a second channel analog signal; and an alarm generator circuit to combine the first and second channel comparator output signals, and output a fault check signal, wherein the first and second channel comparators and the alarm generator circuit are implemented in hardware, and the fault check circuit performs a fault check without software intervention.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: December 13, 2022
    Assignee: Infineon Technologies AG
    Inventors: Ketan Dewan, Juergen Schaefer
  • Patent number: 11512017
    Abstract: In known methods for producing a glass component, a void-containing intermediate product containing doped or non-doped SiO2 is inserted into a sheath tube composed of glass, which has a longitudinal axis and an inner bore, and is thermally treated therein. In order to subject the intermediate product to a thermal and/or reactive treatment that is reproducible and uniform in its effect from this starting point, it is proposed in one embodiment that into the sheath tube's inner bore a first gas-permeable gas diffuser is inserted which is displaceable along the sheath tube's longitudinal axis and is pressed against the intermediate product during the thermal treatment.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: November 29, 2022
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Jacqueline Plass, Dörte Schönfeld, Clemens Schmitt, Alexander Laaz, Andreas Langner, Gerhard Schötz, Walter Lehmann, Michael Hünermann, Stefan Weidlich, Jürgen Schäfer
  • Publication number: 20220276323
    Abstract: An analog fault detection circuit is disclosed. The analog fault detection circuit comprises an input terminal, an input circuit path coupled to the input terminal at a first end and a first sampling switch coupled to the second end of the input circuit path. The first sampling switch is configured to sample an input path voltage at the second end of the input circuit path to provide a first analog to digital converter (ADC) input voltage. The analog fault detection circuit further comprises a first ADC conversion circuit configured to convert the first ADC input voltage to a first digital ADC output; and a first broken wire detection circuit coupled between the first sampling switch and the first ADC conversion circuit, and configured to adaptively pulldown or pullup the first ADC input voltage, in order to detect a fault associated with a first analog circuit path.
    Type: Application
    Filed: May 9, 2022
    Publication date: September 1, 2022
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer
  • Patent number: 11416301
    Abstract: A data processing device is provided.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 16, 2022
    Assignee: Infineon Technologies AG
    Inventors: Konrad Walluszik, Juergen Schaefer
  • Publication number: 20220179012
    Abstract: An analog fault detection circuit is disclosed. The analog fault detection circuit comprises an input terminal, an input circuit path coupled to the input terminal at a first end and a first sampling switch coupled to the second end of the input circuit path. The first sampling switch is configured to sample an input path voltage at the second end of the input circuit path to provide a first analog to digital converter (ADC) input voltage. The analog fault detection circuit further comprises a first ADC conversion circuit configured to convert the first ADC input voltage to a first digital ADC output; and a first broken wire detection circuit coupled between the first sampling switch and the first ADC conversion circuit, and configured to adaptively pulldown or pullup the first ADC input voltage, in order to detect a fault associated with a first analog circuit path.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 9, 2022
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer
  • Patent number: 11353517
    Abstract: An analog fault detection circuit is disclosed. The analog fault detection circuit comprises an input terminal, an input circuit path coupled to the input terminal at a first end and a first sampling switch coupled to the second end of the input circuit path. The first sampling switch is configured to sample an input path voltage at the second end of the input circuit path to provide a first analog to digital converter (ADC) input voltage. The analog fault detection circuit further comprises a first ADC conversion circuit configured to convert the first ADC input voltage to a first digital ADC output; and a first broken wire detection circuit coupled between the first sampling switch and the first ADC conversion circuit, and configured to adaptively pulldown or pullup the first ADC input voltage, in order to detect a fault associated with a first analog circuit path.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 7, 2022
    Assignee: Infineon Technologies AG
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer
  • Publication number: 20220166442
    Abstract: An analog-to-digital device includes a sampling circuit for sampling an input signal. The sampling circuit stops sampling in response to obtaining a trigger signal. The analog-to-digital device includes an analog-to-digital converter circuit which includes an analog to digital converter (ADC) for converting a sampled input provided from the sampling circuit to digital output.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Inventors: Ketan Dewan, Rocco Calabro, Juergen Schaefer, David Schaffenrath