公开(公告)号：US12235299B2

公开(公告)日：2025-02-25

申请号：US17933716

申请日：2022-09-20

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Alexander Roth ,  Gregor Feldhaus ,  Bernhard Gaede

IPC: G01R21/14 ,  G01R21/133

Abstract: A measurement system includes an input port, a signal splitter, first and second signal paths, an analysis circuit, and a control circuit. The input port is configured to receive an input signal to be measured. The signal splitter is configured to split the input signal into a first signal that is forwarded to the first signal path and a second signal that is forwarded to the second signal path. The analysis circuit is connected to the first signal path and the second signal path so as to receive both a first processed signal and a second processed signal. The analysis circuit is configured to a complex-valued product signal from the processed signals average the complex-valued product signal over a predetermined number of samples, and determine an averaged power signal based thereon. The control circuit is configured to directly or indirectly add an offset to the averaged power signal.

公开(公告)号：US20250052846A1

公开(公告)日：2025-02-13

申请号：US18668790

申请日：2024-05-20

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Julian HARMS ,  Maximilian FRIESINGER

IPC: G01R35/00 ,  G01R27/28

Abstract: The application includes a test and/or measurement system having an RF signal source to generate an RF stimulus signal; a device port; a signal path connecting the RF signal source to the device port; a measurement unit coupled to the signal path to measure the RF stimulus signal propagating via the signal path to the device port and a measurement signal received at the device port. A bias tee couples to the signal path and includes a DC input port to receive a DC bias signal. The bias tee couples the DC bias signal into the signal path. The system operates in a calibration mode where at least four different calibration standards are alternately connected to the device port. The system couples the DC bias signal into the signal path during the connection of one or more of the calibration standard(s), but not with all of the calibration standards.

公开(公告)号：US20250052789A1

公开(公告)日：2025-02-13

申请号：US18650768

申请日：2024-04-30

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Florian GALLER ,  Jakob HAMMER

IPC: G01R13/02

Abstract: The present disclosure provides a measurement application device comprising a measurement signal interface configured to acquire a measurement signal, a display coupled to the measurement signal interface, and configured to display the acquired measurement signal, a graphics acquisition interface configured to acquire graphical data, and a data processor coupled to the graphics acquisition interface and the display, and configured to extract a graph from the graphical data, and to display the extracted graph with the measurement signal on the display. Further, the present disclosure provides a respective method, and a respective computer program product.

公开(公告)号：US12224808B2

公开(公告)日：2025-02-11

申请号：US18064077

申请日：2022-12-09

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Ajan Joshi ,  Florian Fischbacher ,  Haisang Yu ,  Chlodwig Neuhaeusler ,  Michael Koenig

IPC: H04B17/00 ,  H04L25/03 ,  H04L27/20

Abstract: An optimization method of automatically optimizing a performance parameter of a signal generator circuit is described. An RF output signal is generated by the signal generator circuit. A performance parameter of the signal generator circuit is determined based on the RF output signal by the control circuit. At least one operational parameter of the signal generator circuit is adapted by the control circuit in order to optimize the performance parameter. Further, a signal generator circuit is described.

公开(公告)号：US12224803B2

公开(公告)日：2025-02-11

申请号：US18074324

申请日：2022-12-02

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Julius Seeger

IPC: H04B10/516 ,  G02F1/01 ,  H04B10/2575

Abstract: A control apparatus for generating a control signal for an electro-optic modulator is described. The control apparatus includes an RF signal source being configured to generate a radio frequency (RF) signal. The control apparatus further includes an amplitude adjustment circuit being configured to adjust an amplitude of the RF signal, thereby obtaining an adjusted RF signal. The control apparatus further includes a DC signal source being configured to generate a direct current (DC) signal. The control apparatus further includes a superposition circuit being configured to superimpose the adjusted RF signal and the DC signal, thereby obtaining the control signal for the electro-optic modulator. The control apparatus further includes a control circuit, wherein the control circuit is configured to receive at least one frequency parameter associated with the electro-optic modulator. The at least one frequency parameter includes a frequency multiplication factor and/or a target modulation frequency. The control circuit is configured to control the DC signal source to adapt a voltage of the DC signal based on the at least one frequency parameter received. Further, an optical signal generator apparatus and an RF-over-fiber system are described.

公开(公告)号：US20250040050A1

公开(公告)日：2025-01-30

申请号：US18359119

申请日：2023-07-26

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Rene KRUEGER-MOLL ,  Joerg REINS ,  Rafal PRZESLAWSKI

IPC: H05K1/14 ,  H05K1/02

Abstract: Disclosed is a printed circuit board, PCB, arrangement, comprising a first PCB comprising a digital integrated circuit, IC; a second PCB, comprising a power supply circuitry for the digital IC; and a plurality of electrically conductive spacers, being mechanically interposed between the first PCB and the second PCB, and electrically interposed between the power supply circuitry and the digital IC. This avoids the issues due to the increase in power density as well as integration level in cutting edge processor architecture.

公开(公告)号：US20250038466A1

公开(公告)日：2025-01-30

申请号：US18360276

申请日：2023-07-27

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Hongjin Kim ,  Kevin Guo

IPC: H01R31/06 ,  G07C5/08 ,  H01R13/70

Abstract: The present disclosure provides a measurement application system comprising a measurement application probe comprising an automotive connector configured to couple to an in-vehicle connector, and at least one measurement application device connector, and the measurement application system further comprising a measurement application device comprising at least one measurement interface coupled to a respective measurement application device connector of the measurement application probe, and configured to receive a measurement signal from the measurement application probe, and a protocol decoder coupled to the measurement interface, and configured to decode the received at least one measurement signal according to a predefined communication protocol. In addition, the present disclosure provides a measurement application probe, and a measurement application device.

公开(公告)号：US12207115B2

公开(公告)日：2025-01-21

申请号：US17817469

申请日：2022-08-04

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Joachim Stegmaier ,  Christoph Hausl ,  Corbett Rowell ,  Frédéric Pierre Denis Boulay

IPC: H04W24/00 ,  G01S19/01 ,  G01S19/42 ,  H04W24/08 ,  H04W56/00 ,  H04W72/044

Abstract: The present disclosure relates to a radio frequency (RF) measurement system and a method for recording baseband and positioning data. The RF measurement system includes at least one RF measurement device. The RF measurement device includes at least one RF chain and at least one data processing circuit connected to a memory device. The RF measurement device is configured to receive a global navigation satellite system (GNSS) signal. The GNSS signal is indicative of a position and/or a bearing. The RF measurement device is configured to receive at least one analog RF signal different of the GNSS signal. The RF measurement device is configured to convert the at least one analog RF signal into at least one baseband signal. The at least one data processing circuit is configured to store baseband data associated with the baseband signal and positioning data associated with the GNSS signal within the memory device.

公开(公告)号：US20250023671A1

公开(公告)日：2025-01-16

申请号：US18219954

申请日：2023-07-10

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Alexander KUELLMER ,  Oliver VOSS

IPC: H04L1/24

Abstract: Disclosed are a device (1) for graphical analysis of an impairment of a demodulated signal, and a corresponding process (2). The device (1) comprises a communication interface (11) and a digital processing logic (12). The communication interface (11) is configured for receiving the demodulated signal including in-phase and quadrature, I/Q, symbols (13). The digital processing logic (12) is configured for providing a graphical pixel-based mask (14) defining an allowable spread (15) of the received I/Q symbols (13) in a graphical pixel-based I/Q symbol constellation (16) of the demodulated signal. The allowable spread (15) depends in direction on a type of the impairment and in magnitude on a strength of the impairment. The digital processing logic (12) is further configured for verifying a compliance of the I/Q symbol constellation (16) of the demodulated signal with the mask (14). This achieves a higher degree of automation, a higher probability of observing significant transmission errors, and more reliability and higher throughput of measurement.

公开(公告)号：US20250020752A1

公开(公告)日：2025-01-16

申请号：US18767028

申请日：2024-07-09

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Julius SEEGER

IPC: G01R35/00 ,  H04B10/071 ,  H04B10/50

Abstract: A calibration method for calibrating a measurement system is described. The measurement system includes a conversion module, an electrical transmission module and an electrical reception module. The calibration method the includes measuring scattering parameters (S-parameters) of the electro-optical device or the opto-electrical device, wherein the measured S-parameters include at least one transmission coefficient in forward direction and two reflection coefficients; and determining actual S-parameters of the electro-optical device or the opto-electrical device based on the measured S-parameters. The actual S-parameters are determined taking a non-zero electrical output or input matching of the conversion module into account.