Patents by Inventor Johannes Steffens

Johannes Steffens 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: 11143683
    Abstract: A measuring method for locating an imperfection in an electrically conductive material comprises applying an electric input signal with an electric signal generator to the electrically conductive material such that the electrically conductive material acts as an antenna and thereby transmits an electromagnetic output signal having a frequency spectrum comprising a contributing frequency corresponding to the imperfection within the electrically conductive material; receiving the electromagnetic output signal with an antenna detection system, wherein the antenna detection system probes the frequency spectrum of the electromagnetic output signal as a function of at least one of position and direction; and locating the imperfection within the electrically conductive material by analyzing with an analysis device a spatial origin of the contributing frequency within the frequency spectrum of the received electromagnetic output signal.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: October 12, 2021
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Johannes Steffens
  • Publication number: 20210127518
    Abstract: An electrical device, comprising a device housing including a skeleton-like frame structure having a plurality of columns and/or crossbeams and at least one electrical module. The module has a module housing and is detachably mounted on the frame structure. The module housing accommodates one or more electrical components generating heat when being operated, wherein the at least one electrical module is liquid cooled and is connected to a radiator for establishing a coolant circuit. The radiator and an active ventilation means are arranged in the device housing such that the radiator is positioned in an air stream generated by the active ventilation means when the active ventilation means is operated.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 29, 2021
    Inventors: Stefan AMAN, Johannes STEFFENS
  • Patent number: 10955450
    Abstract: A measurement system for real-time visualization of radiation pattern is provided. The measurement system comprises an antenna array with a plurality of antennas configured to provide a voltage gain corresponding to a received radio signal. Furthermore, the measurement system comprises a plurality of radio frequency detectors configured to rectify the voltage gain from each antenna of the plurality of antennas. In addition, the measurement system comprises a plurality of amplifiers downstream of the plurality of radio frequency detectors configured to amplify the magnitude of a rectified voltage from each of the radio frequency detectors. The measurement system moreover comprises a plurality of receiving elements, each includes a light emitting diode and configured to receive an amplified voltage corresponding to each amplifier of the plurality of amplifiers.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: March 23, 2021
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Steffen Heuel, Andre Schoch, Johannes Steffens
  • Publication number: 20200292605
    Abstract: A measurement system for real-time visualization of radiation pattern is provided. The measurement system comprises an antenna array with a plurality of antennas configured to provide a voltage gain corresponding to a received radio signal. Furthermore, the measurement system comprises a plurality of radio frequency detectors configured to rectify the voltage gain from each antenna of the plurality of antennas. In addition, the measurement system comprises a plurality of amplifiers downstream of the plurality of radio frequency detectors configured to amplify the magnitude of a rectified voltage from each of the radio frequency detectors. The measurement system moreover comprises a plurality of receiving elements, each includes a light emitting diode and configured to receive an amplified voltage corresponding to each amplifier of the plurality of amplifiers.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Inventors: Steffen HEUEL, Andre SCHOCH, Johannes STEFFENS
  • Publication number: 20200241045
    Abstract: The present invention relates to an improved probe for precisely positioning a probe tip at a measurement point. For this purpose, an image capturing device such as a camera may be firmly arranged at the probe. The image capturing device may capture image data around an area of the probe tip. The captured image data may be provided to a user during positioning the probe tip at the desired measuring point.
    Type: Application
    Filed: October 23, 2019
    Publication date: July 30, 2020
    Inventors: Johannes Steffens, Hermann Boss
  • Publication number: 20200106769
    Abstract: A multiuser measurement system is provided. The multiuser measurement system may authenticate a specific user. When the user has been authenticated, user related data may be obtained from a memory. The user related data are stored in the memory in an encrypted manner, and the encrypted data are only decrypted after authenticating the user.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Florian Ramian, Johannes Steffens, Luke Cirillo
  • Patent number: 10285082
    Abstract: A testing device for testing a device under test emitting a number of beams with respect to its beamforming behavior. Said testing device comprises an antenna, an analyzing unit, and a number of reflectors. Furthermore, each of the number of reflectors is configured to reflect at least one of the number of beams of the device under test to the antenna of the testing device.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 7, 2019
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Johannes Steffens
  • Publication number: 20180139633
    Abstract: A testing device for testing a device under test emitting a number of beams with respect to its beamforming behavior. Said testing device comprises an antenna, an analyzing unit, and a number of reflectors. Furthermore, each of the number of reflectors is configured to reflect at least one of the number of beams of the device under test to the antenna of the testing device.
    Type: Application
    Filed: January 6, 2017
    Publication date: May 17, 2018
    Inventor: Johannes STEFFENS
  • Patent number: 9780890
    Abstract: A measuring system for measuring a communications device comprising an antenna-array. The measuring system comprises a controller, a measuring device, a measuring antenna and a device mount. The measuring device performs measurements with regard to the communications device. The device mount rotates the communications device about at least one axis. The controller sets a maximum gain direction of the antenna-array. The controller (i) controls the device mount to rotate the communications device, compensating for the set maximum gain direction, until the set maximum gain direction meets a direction of the measuring antenna with respect to the communications device, and (ii) determines an actual maximum gain direction of the antenna-array by iteratively rotating the communications device and determining a respective gain for each iteration, and determines the actual maximum gain direction as a rotation of the device mount that corresponds to the iteration of maximal gain.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: October 3, 2017
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Andreas Pauly, Johannes Steffens, Meik Kottkamp
  • Patent number: 9678153
    Abstract: The invention relates to a method and to a switching device (4) and a measurement system (1). In the method according to the invention for determining time differences between measurement signals measured by at least two couple measurement devices (2, 3), a time basis signal is first generated for the measurement devices (2, 3). A common reference signal is further generated by a signal generator (5). The common reference signal is fed to measurement signal inputs (8, 9) of the coupled measuring devices (2, 3) via the switching device (4). A measurement signal is then fed to said measurement signal inputs (8, 9) of the coupled measuring devices (2, 3) and the time position of the measurement signals relative to the reference signal is determined in each of the coupled measuring devices (2, 3).
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: June 13, 2017
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Johannes Steffens, Markus Freidhof, Kurt Schmidt, Manfred Mueller
  • Publication number: 20160359573
    Abstract: A measuring system for measuring a communications device comprising an antenna-array. The measuring system comprises a controller, a measuring device, a measuring antenna and a device mount. The measuring device performs measurements with regard to the communications device. The device mount rotates the communications device about at least one axis. The controller sets a maximum gain direction of the antenna-array. The controller (i) controls the device mount to rotate the communications device, compensating for the set maximum gain direction, until the set maximum gain direction meets a direction of the measuring antenna with respect to the communications device, and (ii) determines an actual maximum gain direction of the antenna-array by iteratively rotating the communications device and determining a respective gain for each iteration, and determines the actual maximum gain direction as a rotation of the device mount that corresponds to the iteration of maximal gain.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Inventors: Andreas PAULY, Johannes STEFFENS, Meik KOTTKAMP
  • Patent number: 9491646
    Abstract: A measuring device for measuring a signal with a first component signal and at least one second component signal comprises a high-frequency processing device, which is embodied to mix the signal in order to form an intermediate-frequency signal and to digitize the latter in order to form a digital composite signal. The measuring device further comprises a digital mixer, which is embodied to generate a first digital composite test signal and a second digital composite test signal subject to a displacement of the frequency of the digital composite signal. Moreover, the measuring device comprises a digital filter, which is embodied to filter the first digital composite test signal in order to form a first digital test signal and to filter the second digital composite test signal in order to form a second digital test signal.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: November 8, 2016
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Jens Franke, Florian Lang, Michael Simon, Bjoern Coenen, Markus Niedl, Ronald Tonn, Johannes Steffens
  • Publication number: 20150111506
    Abstract: A measuring device for measuring a signal with a first component signal and at least one second component signal comprises a high-frequency processing device, which is embodied to mix the signal in order to form an intermediate-frequency signal and to digitize the latter in order to form a digital composite signal. The measuring device further comprises a digital mixer, which is embodied to generate a first digital composite test signal and a second digital composite test signal subject to a displacement of the frequency of the digital composite signal. Moreover, the measuring device comprises a digital filter, which is embodied to filter the first digital composite test signal in order to form a first digital test signal and to filter the second digital composite test signal in order to form a second digital test signal.
    Type: Application
    Filed: June 5, 2012
    Publication date: April 23, 2015
    Inventors: Jens Franke, Florian Lang, Michael Simon, Bjoern Coenen, Markus Niedl, Ronald Tonn, Johannes Steffens
  • Patent number: 8903138
    Abstract: Disclosed herein is a method for creating a pre-template for use in facial recognition including detecting a face in a source image, determining face information for the detected face, cropping the source image around the detected face, adjusting a compression level based on a contrast of at least a portion of the detected face, encoding the cropped image based on the adjusted compression level, and storing the encoded cropped image and the face information in a storage medium, wherein the encoded cropped image is subsequently retrieved from the storage medium, decoded and converted to a numerical representation of the detected face to compare the numerical representation with a face in an input image.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: December 2, 2014
    Assignee: Google Inc.
    Inventors: Johannes Steffens, Hartwig Adam
  • Patent number: 8897508
    Abstract: A method and apparatus for creating and updating a facial image database from a collection of digital images is disclosed. A set of detected faces from a digital image collection is stored in a facial image database, along with data pertaining to them. At least one facial recognition template for each face in the first set is computed, and the images in the set are grouped according to the facial recognition template into similarity groups. Another embodiment is a naming tool for assigning names to a plurality of faces detected in a digital image collection. A facial image database stores data pertaining to facial images detected in images of a digital image collection.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 25, 2014
    Assignee: Google Inc.
    Inventors: Hartwig Adam, Johannes Steffens, Keith Kiyohara, Harmut Neven, Brian Westphal, Tobias Magnusson, Gavin Doughtie, Henry Benjamin, Michael Horowitz, Hong-Kien Kenneth Ong
  • Patent number: 8831362
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing age estimation. In one aspect, a method includes receiving an image of a person, submitting the image to multiple binary classifiers that are each trained to classify the person in the image as belonging to one of two predefined age groups, or as belonging or not belonging to a particular age group, where each output includes a confidence value associated with classifying the person in the image, obtaining the confidence values from the multiple binary classifiers, aggregating the confidence values, and generating an age estimation for the person in the image based on the aggregated confidence values.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: September 9, 2014
    Assignee: Google Inc.
    Inventor: Johannes Steffens
  • Patent number: 8718125
    Abstract: A device and method for determining and displaying on a display element the status of at least one synchronization implemented in an electronic measuring instrument or a telecommunications device is provided. The device includes several functional units provided within the electronic measuring instrument or the telecommunications device, and each functional unit determines at least one parameter, the value of which corresponds to the status of the synchronization implemented in the respective functional unit.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: May 6, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Johannes Steffens, Volker Fischer, Gregor Feldhaus, Matthias Roth
  • Publication number: 20130251217
    Abstract: A method and apparatus for creating and updating a facial image database from a collection of digital images is disclosed. A set of detected faces from a digital image collection is stored in a facial image database, along with data pertaining to them. At least one facial recognition template for each face in the first set is computed, and the images in the set are grouped according to the facial recognition template into similarity groups. Another embodiment is a naming tool for assigning names to a plurality of faces detected in a digital image collection. A facial image database stores data pertaining to facial images detected in images of a digital image collection.
    Type: Application
    Filed: December 17, 2012
    Publication date: September 26, 2013
    Inventors: Hartwig ADAM, Johannes Steffens, Keith Kiyohara, Harmut Neven, Brian Westphal, Tobias Magnusson, Gavin Doughtie, Henry Benjamin, Michael Horowitz, Hong-Kien Kenneth Ong
  • Patent number: 8498491
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing age estimation. In one aspect, a method includes receiving an image of a person, submitting the image to multiple binary classifiers that are each trained to classify the person in the image as belonging to one of two predefined age groups, or as belonging or not belonging to a particular age group, where each output includes a confidence value associated with classifying the person in the image, obtaining the confidence values from the multiple binary classifiers, aggregating the confidence values, and generating an age estimation for the person in the image based on the aggregated confidence values.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 30, 2013
    Assignee: Google Inc.
    Inventor: Johannes Steffens
  • Patent number: 8358811
    Abstract: A method and apparatus for creating and updating a facial image database from a collection of digital images is disclosed. A set of detected faces from a digital image collection is stored in a facial image database, along with data pertaining to them. At least one facial recognition template for each face in the first set is computed, and the images in the set are grouped according to the facial recognition template into similarity groups. Another embodiment is a naming tool for assigning names to a plurality of faces detected in a digital image collection. A facial image database stores data pertaining to facial images detected in images of a digital image collection.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: January 22, 2013
    Assignee: Google Inc.
    Inventors: Hartwig Adams, Johannes Steffens, Keith Kiyohara, Hartmut Neven, Brian Westphal, Tobias Magnusson, Gavin Doughtie, Henry Benjamin, Michael Horowitz, Hong-Kien Kenneth Ong