Patents by Inventor Werner Held
Werner Held 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: 10514436Abstract: A test device for testing an electronic device under test comprises a remote measurement module configured to capture signals originating from the electronic device under test and output the captured signals, and an analysis device configured to receive the captured signals and to calibrate the test device based on test signals provided by the analysis device and the captured signals.Type: GrantFiled: March 3, 2017Date of Patent: December 24, 2019Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventors: Martin Leibfritz, Werner Held
-
Patent number: 10454600Abstract: A method for measuring group delay on a device under test is described, wherein a test signal with a carrier frequency is generated. An amplitude modulation is applied to said test signal in order to generate at least two group delay signals having frequencies that are symmetrical to the frequency of said test signal. At least said group delay signals are provided to said device under test. Further, a measurement device and a measurement system are described.Type: GrantFiled: April 13, 2017Date of Patent: October 22, 2019Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Martin Leibfritz, Werner Held
-
Publication number: 20190072598Abstract: A vector network analyzer for obtaining at least one wave frequency ratio with respect to a frequency-converting device under test is provided. The vector network analyzer comprises a transmitter side configured to be controlled by at least one transmitter side clock signal, a receiver side configured to be controlled by at least one receiver side clock signal, and a central clock configured to generate a central clock signal. The at least one transmitter side clock signal and the at least one receiver side clock signal are based on the central clock signal, the at least one transmitter side clock signal and the at least one receiver side clock signal are generated with a fixed phase relation to each other with the aid of a start pulse.Type: ApplicationFiled: November 28, 2017Publication date: March 7, 2019Inventors: Martin LEIBFRITZ, Werner HELD
-
Publication number: 20190072594Abstract: A vector network analyzer for obtaining at least one wave frequency ratio with respect to a frequency-converting device under test is provided. The vector network analyzer comprises a transmitter side configured to be controlled by at least one transmitter side clock signal, a receiver side configured to be controlled by at least one receiver side clock signal, and a central clock configured to generate a central clock signal. The at least one transmitter side clock signal and the at least one receiver side clock signal are based on the central clock signal, the at least one transmitter side clock signal and the at least one receiver side clock signal are generated with a fixed phase relation to each other with the aid of a start pulse.Type: ApplicationFiled: September 4, 2017Publication date: March 7, 2019Inventors: Martin LEIBFRITZ, Werner HELD
-
Publication number: 20180302179Abstract: A method for measuring group delay on a device under test is described, wherein a test signal with a carrier frequency is generated. An amplitude modulation is applied to said test signal in order to generate at least two group delay signals having frequencies that are symmetrical to the frequency of said test signal. At least said group delay signals are provided to said device under test. Further, a measurement device and a measurement system are described.Type: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Martin Leibfritz, Werner Held
-
Publication number: 20180252791Abstract: A test device for testing an electronic device under test comprises a remote measurement module configured to capture signals originating from the electronic device under test and output the captured signals, and an analysis device configured to receive the captured signals and to calibrate the test device based on test signals provided by the analysis device and the captured signals.Type: ApplicationFiled: March 3, 2017Publication date: September 6, 2018Inventors: Martin Leibfritz, Werner Held
-
Publication number: 20170160321Abstract: A measurement apparatus (1) comprising a high frequency measurement unit (2) adapted to measure high frequency parameters (HFP) of a device under test (DUT) connected to ports of said measurement apparatus (1) and a multimeter unit (3) adapted to measure DC characteristics parameters (DCP) of said device under test (DUT) connected via control signal lines (CL) to a control bus interface (6) of said measurement apparatus (1).Type: ApplicationFiled: October 21, 2016Publication date: June 8, 2017Inventors: Werner Held, Martin Leibfritz, Marcel Ruf
-
Patent number: 8981758Abstract: A measurement bridge, in particular for a network analyzer, including a reference port, a central output port and a balun having a first balun input connector and a first and a second balun output connector. The first balun output connector is connected to a first signal path and the second balun output connector is connected to a second signal path. The central output port is connected to the first signal path, and the reference port is connected to the second signal path. The electrical parameters of the first signal path and the second signal path are approximately the same.Type: GrantFiled: February 21, 2012Date of Patent: March 17, 2015Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Martin Leibfritz, Werner Held
-
Publication number: 20130214762Abstract: A measurement bridge, in particular for a network analyzer, including a reference port, a central output port and a balun having a first balun input connector and a first and a second balun output connector. The first balun output connector is connected to a first signal path and the second balun output connector is connected to a second signal path. The central output port is connected to the first signal path, and the reference port is connected to the second signal path. The electrical parameters of the first signal path and the second signal path are approximately the same.Type: ApplicationFiled: February 21, 2012Publication date: August 22, 2013Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Martin LEIBFRITZ, Werner HELD
-
Patent number: 8340935Abstract: A network analyzer contains a processing device, at least one signal generator and at least four measuring points. The processing device controls the signal generator and processes measured values picked up from the measuring points. The network analyzer implements several calibration measurements on calibration standards, before it implements measurements on a device under test. The network analyzer implements the calibration measurements using the measuring points. The processing device determines error matrices on the basis of the results of the calibration measurements. The network analyzer implements measurements on the device using simultaneously, exactly three measuring points. The processing device determines measured values in each case of a fourth measuring point on the basis of the calibration measurements and the measured values of the three measuring points.Type: GrantFiled: December 18, 2009Date of Patent: December 25, 2012Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Martin Leibfritz, Werner Held
-
Patent number: 7919969Abstract: The invention relates to a network analyzer comprising a signal generator for generating an excitation signal which can be supplied to a measuring object connectable to a network analyzer by means of a measuring line, and a measuring bridge which is connected to the measuring line by means of signal transmission. A reference signal corresponding to the excitation signal can be extracted from a reference channel, and a measuring signal corresponding to a signal corresponding to a signal reflected from the measuring object can be extracted from a measuring channel. the measuring bridge comprises a resistive bridge and at least one hybrid coupler which is connected to the resistive bridge in series. the measuring bridge is operated as a resistive bridge in a low frequency range and as a hybrid coupler in a upper frequency range.Type: GrantFiled: February 1, 2007Date of Patent: April 5, 2011Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Werner Held
-
Patent number: 7804304Abstract: A method for measuring the noise factor (FDUT) of a device under test, which requires exclusively a network analyzer. The noise factor (FDUT) is calculated from the internal noise (NNWA) of the network analyzer determined in a calibration process, the power amplification (GDUT) of the device under test determined by measuring the S-parameters of the device under test, and the measured value (PNOISE) of the noise output (NNWA) applied at a first gate of the device under test without exciting the device under test with a noise signal.Type: GrantFiled: November 16, 2006Date of Patent: September 28, 2010Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Werner Held
-
Publication number: 20100161265Abstract: A network analyzer contains a processing device, at least one signal generator and at least four measuring points. The processing device controls the signal generator and processes measured values picked up from the measuring points. The network analyzer implements several calibration measurements on calibration standards, before it implements measurements on a device under test. The network analyzer implements the calibration measurements using the measuring points. The processing device determines error matrices on the basis of the results of the calibration measurements. The network analyzer implements measurements on the device using simultaneously, exactly three measuring points. The processing device determines measured values in each case of a fourth measuring point on the basis of the calibration measurements and the measured values of the three measuring points.Type: ApplicationFiled: December 18, 2009Publication date: June 24, 2010Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Martin LEIBFRITZ, Werner Held
-
Patent number: 7647029Abstract: In a controller-assisted device for determining a characteristic of a compensation element in a level control circuit, the compensation element is serially mounted inside the level control circuit for a high-frequency signal (S<SB>HF</SB>) in a signal channel with respect to said signal channel. The characteristic of the compensation element has a characteristic which the inverse of the non-linear transmission characteristic of the signal channel in the event of ideal compensation. In the controller-assisted method for the determination of a characteristic of the compensation element in a level control circuit, each ordinate value of the characteristic of the compensation element arises, in the event of a bridged compensation element, from the corrective signal value (Pastel) which is adjusted at a signal level of the level reference signal (Pref) in the adjusted level control circuit, corresponding to the associated abscissa value of the characteristic of the compensation element.Type: GrantFiled: June 29, 2005Date of Patent: January 12, 2010Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Thomas Kuhwald, Werner Held
-
Publication number: 20080315947Abstract: In a controller-assisted device for determining a characteristic of a compensation element in a level control circuit, the compensation element is serially mounted inside the level control circuit for a high-frequency signal (S<SB>HF</SB>) in a signal channel with respect to said signal channel. The characteristic of the compensation element has a characteristic which the inverse of the non-linear transmission characteristic of the signal channel in the event of ideal compensation. In the controller-assisted method for the determination of a characteristic of the compensation element in a level control circuit, each ordinate value of the characteristic of the compensation element arises, in the event of a bridged compensation element, from the corrective signal value (Pastel) which is adjusted at a signal level of the level reference signal (Pref) in the adjusted level control circuit, corresponding to the associated abscissa value of the characteristic of the compensation element.Type: ApplicationFiled: June 29, 2005Publication date: December 25, 2008Applicant: Rohde &Schwarz GmbH & CO. KGInventors: Thomas Kuhwald, Werner Held
-
Publication number: 20080297172Abstract: A method for measuring the noise factor (FDUT) of a device under test, which requires exclusively a network analyzer. The noise factor (FDUT) is calculated from the internal noise (NNWA) of the network analyzer determined in a calibration process, the power amplification (GDUT) of the device under test determined by measuring the S-parameters of the device under test, and the measured value (PNOISE) of the noise output (NNWA) applied at a first gate of the device under test without exciting the device under test with a noise signal.Type: ApplicationFiled: November 16, 2006Publication date: December 4, 2008Applicant: Rohde & Schwarz GmbH & Co. KGInventor: Werner Held
-
Publication number: 20080290880Abstract: The invention relates to a network analyzer comprising a signal generator for generating an excitation signal which can be supplied to a measuring object connectable to a network analyzer by means of a measuring line, and a measuring bridge which is connected to the measuring line by means of signal transmission. A reference signal corresponding to the excitation signal can be extracted from a reference channel, and a measuring signal corresponding to a signal corresponding to a signal reflected from the measuring object can be extracted from a measuring channel. the measuring bridge comprises a resistive bridge and at least one hybrid coupler which is connected to the resistive bridge in series. the measuring bridge is operated as a resistive bridge in a low frequency range and as a hybrid coupler in a upper frequency range.Type: ApplicationFiled: February 1, 2007Publication date: November 27, 2008Applicant: Rohde & Schwarz GmbH & KGInventor: Werner Held
-
Patent number: 5899416Abstract: The boundary layer flow along the surface of an aircraft rudder assembly is controlled by suction applied through perforations primarily installed in the leading edge of the rudder assembly. The control is such that a laminar flow is enforced or at least such that any turbulent flow is displaced so that it begins downstream of the rudder assembly leading edge. Suction air chambers are arranged along the leading edge inside a nose box of the rudder assembly and these boxes are connected through air ducts and a valve system to an exhaust fan. The valve system and the exhaust fan are controlled by a central processing unit providing a flow controller for the suction in response to control signals produced from rated values and sensed actual valves to provide a uniform distribution of the suction along the leading edge of the rudder assembly. The suction system may be switched over to a de-icing mode by blowing warm air out through the perforations in a controlled manner.Type: GrantFiled: October 20, 1997Date of Patent: May 4, 1999Assignee: Daimler Chrysler Aerospace Airbus GmbHInventors: Juergen Meister, Juergen Pfennig, Werner Held
-
Patent number: 5712573Abstract: In a network analyzer for the measurement of frequency-dependent measurement parameters of an object undergoing measurement, the waiting period at which the locked oscillator is switchable between the successive frequency measurement points is controlled in dependence on the comparison of at least two immediately successive measurement results at the same measurement point.Type: GrantFiled: April 26, 1996Date of Patent: January 27, 1998Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Werner Held