Patents by Inventor Rolf Lorenzen

Rolf Lorenzen 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: 11209516
    Abstract: A measuring device for providing an angle of departure determining test signal to a device under test, is provided. The measuring device comprises a signal generator and a single output port. The signal generator is adapted to generate the angle of departure determining test signal, emulating an antenna array angle of departure determining signal, comprised of a plurality of individual array antenna signals, thereby emulating an angle of departure of the angle of departure determining test signal. The single output port is adapted to output the angle of departure determining test signal to the device under test.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 28, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Rolf Lorenzen, Brian Glover, Nirmalan Thiruvadivel
  • Patent number: 11082139
    Abstract: A mobile radio testing device for protocol testing of a device under test is provided. The mobile radio testing device comprises a downlink path and an uplink path, wherein the uplink path comprises at least a first analysis mode and a second analysis mode. In this context, the mobile radio testing device includes a demodulation processing unit for analyzing signals from the device under test in the first analysis mode. In addition, the second analysis mode analyzes signals from the device under test without using the demodulation processing unit.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: August 3, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Moritz Harteneck, Martin Oetjen, Rolf Lorenzen, Matthias Jelen, Henry Gropp, Heino Gerlach, Gottfried Holzmann
  • Patent number: 11005579
    Abstract: A test system and method of performing a run-time measurement for calibration of a device used for time-of-flight measurement are disclosed. The method comprises: providing a measurement device, a device under test and a directive component having three ports; connecting the directive component to a transmission port of the measurement device and a reception port of the measurement device; generating a signal by a signal generator; forwarding the signal to the directive component; receiving at least a response by a signal receiver; and determining a loop time indicative of the run-time between the directive component and the device under test as well as a time of internal processing of the device under test, wherein the loop time is independent of a signal processing time of a signal path between the measurement device and the directive component.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 11, 2021
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Patent number: 10921844
    Abstract: An arbitrary waveform sequencer device for playing a list of at least a first and a second arbitrary waveform file in a sequence is provided. The arbitrary waveform sequencer device comprises a list increment condition control unit configured to control an increment from the first to the second arbitrary waveform file as a function of an increment condition, and a transition control unit configured to control a timing of the increment.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 16, 2021
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Rolf Lorenzen, Daniel Hank
  • Publication number: 20200358542
    Abstract: A mobile radio testing device for protocol testing of a device under test is provided. The mobile radio testing device comprises a downlink path and an uplink path, wherein the uplink path comprises at least a first analysis mode and a second analysis mode. In this context, the mobile radio testing device includes a demodulation processing unit for analyzing signals from the device under test in the first analysis mode. In addition, the second analysis mode analyzes signals from the device under test without using the demodulation processing unit.
    Type: Application
    Filed: September 30, 2019
    Publication date: November 12, 2020
    Inventors: Moritz HARTENECK, Martin OETJEN, Rolf LORENZEN, Matthias JELEN, Henry GROPP, Heino GERLACH, Gottfried HOLZMANN
  • Publication number: 20200018811
    Abstract: A measuring device for providing an angle of departure determining test signal to a device under test, is provided. The measuring device comprises a signal generator and a single output port. The signal generator is adapted to generate the angle of departure determining test signal, emulating an antenna array angle of departure determining signal, comprised of a plurality of individual array antenna signals, thereby emulating an angle of departure of the angle of departure determining test signal. The single output port is adapted to output the angle of departure determining test signal to the device under test.
    Type: Application
    Filed: December 27, 2018
    Publication date: January 16, 2020
    Inventors: Rolf LORENZEN, Brian GLOVER, Nirmalan THIRUVADIVEL
  • Publication number: 20190369655
    Abstract: An arbitrary waveform sequencer device for playing a list of at least a first and a second arbitrary waveform file in a sequence is provided. The arbitrary waveform sequencer device comprises a list increment condition control unit configured to control an increment from the first to the second arbitrary waveform file as a function of an increment condition, and a transition control unit configured to control a timing of the increment.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 5, 2019
    Inventors: Rolf LORENZEN, Daniel HANK
  • Patent number: 9628202
    Abstract: A testing front end module for testing a plurality of devices under test (DUT) includes a testing signal interface, a vector signal generator (VSG) coupled to the testing signal interface and configured to generate testing signals upon reception of testing routine signals from a remote controller via the testing signal interface, a vector signal analyzer (VSA) coupled to the testing signal interface and configured to receive testing response signals from a plurality of DUTs and to transmit the received testing response signals to the remote controller via the testing signal interface, a multiplexer/demultiplexer (MUX/DEMUX) coupled to the VSG and the VSA, the MUX/DEMUX being configured to multiplex the received testing response signals and to demultiplex the generated testing signals, and a test device interface coupled to the MUX/DEMUX and configured to couple the testing front end module to the plurality of DUTs.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 18, 2017
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Gottfried Holzmann, Ralf Plaumann, Peter Wolanin, Wilfried Dilling, Rudolf Schindlmeier, Rolf Lorenzen, Anton Steinegger, Werner Mittermaier
  • Publication number: 20160253252
    Abstract: A testing front end module for testing a plurality of devices under test (DUT) includes a testing signal interface, a vector signal generator (VSG) coupled to the testing signal interface and configured to generate testing signals upon reception of testing routine signals from a remote controller via the testing signal interface, a vector signal analyser (VSA) coupled to the testing signal interface and configured to receive testing response signals from a plurality of DUTs and to transmit the received testing response signals to the remote controller via the testing signal interface, a multiplexer/demultiplexer (MUX/DEMUX) coupled to the VSG and the VSA, the MUX/DEMUX being configured to multiplex the received testing response signals and to demultiplex the generated testing signals, and a test device interface coupled to the MUX/DEMUX and configured to couple the testing front end module to the plurality of DUTs.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 1, 2016
    Inventors: Gottfried HOLZMANN, Ralf PLAUMANN, Peter WOLANIN, Wilfried DILLING, Rudolf SCHINDLMEIER, Rolf LORENZEN, Anton STEINEGGER, Werner MITTERMAIER
  • Patent number: 8699970
    Abstract: A method and a system for determining the amplitude and/or the phase of the output signal of a transmission link dependent upon the amplitude of the input signal (AM-AM and/or AM-PM characteristic) impresses a test signal (s(t)) on the transmission link, measures the response signal (e(t)) resulting from the test signal (s(t)) by amplitude and/or phase distortion in the transmission link and determines the amplitude response (|e(t)|) of the response signal (e(t)) and/or the phase responses (?S(t), ?E(t)) of the test signal (s(t)) and of the response signal (e(t)) dependent upon the amplitude response (|s(t)|) of the test signal (s(t)). The amplitude response (|s(t)|) of the test signal (s(t)) consists of several first and second response segments with constant amplitude values over the duration (?T) of the respective first or second response segment.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Patent number: 8019286
    Abstract: A method and a system for determining the amplitude and/or the phase of the output signal of a transmission link dependent upon the amplitude of the input signal (AM-AM and/or AM-PM characteristic) impresses a test signal (s(t)) on the transmission link (14), measures the response signal (e(t)) resulting from the test signal (s(t)) by amplitude and/or phase distortion in the transmission link (14) and determines the amplitude response (|e(t)|) of the response signal (e(t)) and/or the phase responses (?s(t), ?E(t)) of the test signal (s(t)) and of the response signal (e(t)) dependent upon the amplitude response (|s(t)|) of the test signal (s(t)). The amplitude response (|s(t)|) of the test signal (s(t)) consists of several first and second response segments with constant amplitude values over the duration (?T) of the respective first or second response segment.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: September 13, 2011
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Publication number: 20110124296
    Abstract: A method and a system for determining the amplitude and/or the phase of the output signal of a transmission link dependent upon the amplitude of the input signal (AM-AM and/or AM-PM characteristic) impresses a test signal (s(t)) on the transmission link, measures the response signal (e(t)) resulting from the test signal (s(t)) by amplitude and/or phase distortion in the transmission link and determines the amplitude response (|e(t)|) of the response signal (e(t)) and/or the phase responses (?S(t), ?E(t)) of the test signal (s(t)) and of the response signal (e(t)) dependent upon the amplitude response (|s(t)|) of the test signal (s(t)). The amplitude response (|s(t)|) of the test signal (s(t)) consists of several first and second response segments with constant amplitude values over the duration (?T) of the respective first or second response segment.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 26, 2011
    Applicant: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Rolf Lorenzen
  • Patent number: 7949334
    Abstract: A method and a system for determining the dependence between several device-parameter values in each case of at least one device parameter of a mobile telephone (31, 32, . . . , 3m, 3n) and at least one signal parameter of a signal transmitted and/or received by the mobile telephone (31, 32, . . . , 3m, 3n) adjusts several device-parameter values within a mobile telephone (31, 32, . . . , 3m, 3n) of at least one device parameter of the respective mobile telephone (31, 32, . . . , 3m, 3n) for a given number of frequencies of the respectively transmitted and/or received signal, and measures the associated signal parameters of a signal transmitted and/or received by the respective mobile telephone (31, 32, . . . , 3m, 3n). All of the frequencies and the device-parameter values of at least one device parameter respectively associated with every frequency are present in the respective mobile telephone (31, 32, . . . , 3m, 3n) at the start of the measurements.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: May 24, 2011
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Publication number: 20090131039
    Abstract: A method and a system for determining the dependence between several device-parameter values in each case of at least one device parameter of a mobile telephone (31, 32, . . . , 3m, 3n) and at least one signal parameter of a signal transmitted and/or received by the mobile telephone (31, 32, . . . , 3m, 3n) adjusts several device-parameter values within a mobile telephone (31, 32, . . . , 3m, 3n) of at least one device parameter of the respective mobile telephone (31, 32, . . . , 3m, 3n) for a given number of frequencies of the respectively transmitted and/or received signal, and measures the associated signal parameters of a signal transmitted and/or received by the respective mobile telephone (31, 32, . . . , 3m, 3n). All of the frequencies and the device-parameter values of at least one device parameter respectively associated with every frequency are present in the respective mobile telephone (31, 32, . . . , 3m, 3n) at the start of the measurements.
    Type: Application
    Filed: July 10, 2007
    Publication date: May 21, 2009
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Publication number: 20080268789
    Abstract: A method and system for determining the amplitude and/or phase of the output signal of a transmission link according to the amplitude of the input signal (AM-AM and AM-PM characteristics). The response signal (e(t)) emanating from a test signal as a result of amplitudes and/or phase distortion in the transmission link is determined with respect to the associated amplitude characteristics (|e(t)|) and/or associated phase characteristics (?E(t)) according to the test signal (s(t)). Only the amplitude characteristic (|e(t)|) and/or phase characteristic (?E(t)) of the response signal (e(t)) are measured.
    Type: Application
    Filed: November 15, 2005
    Publication date: October 30, 2008
    Inventors: Ralf Plaumann, Rolf Lorenzen
  • Publication number: 20080171518
    Abstract: A method and a system for determining the amplitude and/or the phase of the output signal of a transmission link dependent upon the amplitude of the input signal (AM-AM and/or AM-PM characteristic) impresses a test signal (s(t)) on the transmission link (14), measures the response signal (e(t)) resulting from the test signal (s(t)) by amplitude and/or phase distortion in the transmission link (14) and determines the amplitude response (|e(t)|) of the response signal (e(t)) and/or the phase responses (?s(t), ?E(t)) of the test signal (s(t)) and of the response signal (e(t)) dependent upon the amplitude response (|s(t)|) of the test signal (s(t)). The amplitude response (|s(t)|) of the test signal (s(t)) consists of several first and second response segments with constant amplitude values over the duration (?T) of the respective first or second response segment.
    Type: Application
    Filed: April 12, 2006
    Publication date: July 17, 2008
    Applicant: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Rolf Lorenzen
  • Patent number: 7277418
    Abstract: A process for determining a time lapse between a trigger signal and a start of a cyclic sequence of a pilot signal of a CDMA high frequency signal includes: simultaneously scanning and storing the trigger signal and the pilot signal; comparing the trigger signal with a trigger threshold to capture a time (ttrig) to reach the trigger threshold; comparing the trigger signal with a trigger threshold to capture a time (ttrig) to reach the trigger threshold; generating a CDMA baseband signal by transforming the CDMA high frequency signal into a complex baseband; correlating the CDMA baseband signal with a cyclic reference sequence to capture the time (tpn) up to the start of the cyclic sequence of the pilot signal; and subtracting ttrig from tpn to determine the lapse in time.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 2, 2007
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Rolf Lorenzen
  • Patent number: 7054383
    Abstract: A method and system for determining the average long-term is described, in which a short-term power of a segment of the input signal is determined and a data sequence is produced that is contained in the segment and with which the input signal is modulated. A reference signal is produced by modulation with the data sequence at a predetermined reference control factor of a modulator, in which a long-term power of the reference signal corresponds to the reference control factor, and a short-term power of the reference signal within the segment is determined. A correction value is determined by comparing the short-term power of the reference signal with the long-term power of the reference signal corresponding to the reference control factor; and the short-term power of the segment of the input signal is corrected based on the correction value in order to obtain the long-term power of the input signal.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: May 30, 2006
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Rolf Lorenzen, Ralf Plaumann
  • Patent number: 6744247
    Abstract: A measuring device (1), for measuring the spectrum of a measured signal in several neighboring channels (15−9-159) of a working channel (14), includes a selective filter (9) which damps the working channel (14) more strongly than the neighboring channels (15−9-159). Furthermore an analogue/digital converter (5) is provided which detects the filtered measured signal from all the channels to be measured (15−9-159, 14) in a parallel and broadband manner and converts the above to a digital signal. An equaliser (11) in series with the analogue/digital converter (5), equalises the digital signal with a frequency response which is the reciprocal of the frequency response of the selective filter (9).
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: June 1, 2004
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Martin Oetjen, Rolf Lorenzen, Falko Fiechtner
  • Publication number: 20030151399
    Abstract: A measuring device (1), for measuring the spectrum of a measured signal in several neighbouring channels (15−9-159) of a working channel (14), comprises a selective filter (9) which damps the working channel (14) more strongly than the neighbouring channels (15−9-159). Furthermore an analogue/digital converter (5) is provided which detects the filtered measured signal from all the channels to be measured (15−9-159, 14) in a parallel and broadband manner and converts the above to a digital signal. An equaliser (11) in series with the analogue/digital converter (5), equalises the digital signal with a frequency response which is the reciprocal of the frequency response of the selective filter (9).
    Type: Application
    Filed: December 17, 2002
    Publication date: August 14, 2003
    Inventors: Martin Oetjen, Rolf Lorenzen, Falko Fiechtner