Patents Assigned to Rohde & Schwarz GmbH & Co.
-
Patent number: 11874312Abstract: A phase noise measurement method of measuring phase noise of a device under test is described. The phase noise measurement method includes the steps of: determining, by a measurement circuit, measurement IQ data based on an output signal of a device under test; setting, by a control circuit, a magnitude threshold; determining, by an analysis circuit, critical samples of reference IQ data for which a magnitude of a reference signal is smaller than the magnitude threshold; discarding the critical samples of the reference IQ data and corresponding critical samples of the measurement IQ data, thereby obtaining modified reference IQ data and modified measurement IQ data; and determining, by the analysis circuit, a phase noise spectrum of the output signal of the device under test based on the modified reference IQ data and based on the modified measurement IQ data. Further, a measurement system is described.Type: GrantFiled: November 22, 2022Date of Patent: January 16, 2024Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Andreas Lagler, Florian Ramian, Karolin Werthmueller
-
Patent number: 11874322Abstract: The present disclosure relates to a device for simulating a battery of a device-under-test (DUT), comprising a battery simulation unit adapted to fit into a battery reception unit of the DUT; and a controller configured to control the battery simulation unit to simulate electrical characteristics of a battery; wherein the battery simulation unit is configured to supply electrical power to the DUT or drain electrical power from the DUT based to the simulated electrical characteristics. The device further comprises a temperature sensor configured to measure a temperature at or in the battery simulation unit; and a heater unit configured to heat the battery simulation unit.Type: GrantFiled: June 29, 2022Date of Patent: January 16, 2024Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Bernhard Sterzbach
-
Patent number: 11868910Abstract: A device for generating training data sets for signal type recognition has at least one radio frequency signal generator for generating at least one artificial radio frequency signal, a radio frequency receiver connected to the at least one radio frequency signal generator for receiving the at least one artificial radio frequency signal generated by the at least one radio frequency signal generator, and a signal data recorder connected to the radio frequency receiver for storing the radio frequency signal received by the radio frequency receiver as a training data set. Further, a method for generating training data sets as well as a training data set are provided.Type: GrantFiled: February 6, 2020Date of Patent: January 9, 2024Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Mahmud Naseef
-
Patent number: 11867725Abstract: The invention relates to a measurement instrument, such as an oscilloscope, comprising a measurement unit adapted to receive an input signal, and a processing unit adapted to classify the input signal, preferably based on signal parameters or characteristics of the input signal. wherein the processing unit is adapted to determine a signal analysis category for the input signal based on said classification of the input signal, and to match the determined signal analysis category to a control configuration, which defines settings and/or configurations of the measurement instrument, based on an adjustment function.Type: GrantFiled: November 6, 2020Date of Patent: January 9, 2024Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Bernhard Sterzbach
-
Patent number: 11870595Abstract: The invention provides an analysis of a Bluetooth Low Energy implementation by measuring a packet error rate (PER) on a communication channel between the BLE implementation and a test device.Type: GrantFiled: August 24, 2021Date of Patent: January 9, 2024Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Brian Glover
-
Publication number: 20230417821Abstract: Method, system and probe for visualizing measured values of an electromagnetic parameter of a PCB. A probe head of a probe contactless measures values of at least one electromagnetic parameter at at least two different positions of the PCB, a camera fixed in position relative to the probe head records for each of the different positions an image of an area of the PCB around the probe head, for each of the different positions, the measured value of the electromagnetic parameter is correlated with the recorded image of the area of the PCB around the probe head, a location of each of the recorded images of the areas on a map representation of the PCB is determined, the map representation of the PCB with the measured values of the electromagnetic parameter, and the map representation of the PCB is visualized together with the superimposed measured values of the electromagnetic parameter.Type: ApplicationFiled: March 16, 2023Publication date: December 28, 2023Applicant: Rohde & Schwarz GmbH & Co. KGInventor: Gerd BRESSER
-
Patent number: 11852658Abstract: A measurement input circuit for a measurement device for measuring an electric signal in a device under test comprises a signal input that receives the electronic signal from the device under test and provides the received electronic signal at a signal node, a direct signal coupling path that is coupled between the signal node an electrical ground and comprises a first impedance value, an alternating signal coupling path that is coupled between the signal node and the electrical ground, and comprises a second impedance value that is lower than the first impedance value, and a signal output that is coupled to the signal node and outputs the received electronic signal.Type: GrantFiled: January 4, 2022Date of Patent: December 26, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Martin Peschke
-
Patent number: 11846671Abstract: A method for recovering data included in a digitally modulated signal is described. The digitally modulated signal includes a symbol sequence. The method includes providing a mathematical model of the digitally modulated signal, the mathematical model describing the digitally modulated signal in terms of the symbol sequence and describing the digitally modulated signal in terms of a step response and/or an impulse response, and wherein the mathematical model also takes disturbances into account; and processing the digitally modulated signal based on the mathematical model, thereby recovering the data included in the digitally modulated signal. The disturbances include a random disturbance component modelled as a Gaussian disturbance, and include an inter-symbol interference component modelled as Gaussian noise, and wherein a dependence of the at least one step response on the symbol sequence is neglected within the mathematical model. Further, a measurement instrument and a measurement system are described.Type: GrantFiled: April 27, 2022Date of Patent: December 19, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Adrian Ispas
-
Publication number: 20230403605Abstract: Disclosed are a method (1) of and a management entity (23) for optimizing a radio performance of a wireless network (2). The wireless network (2) comprises a plurality (C) of communication channels and a plurality (N) of configurable radio access entities (21). The method (1) comprises determining (11), by a respective configurable radio access entity (21, i) of the plurality of configurable radio access entities (21), a respective set of receivable radio access entities (21, 22, j) in a particular communication channel of the plurality of communication channels. The method (1) further comprises collecting (12), by a management entity (23), the respective set of the receivable radio access entities (21, 22, j) determined by the respective configurable radio access entity (21, i) of the plurality of configurable radio access entities (21, i).Type: ApplicationFiled: January 20, 2023Publication date: December 14, 2023Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Joachim PRICK, Andreas HOLTKAMP, Kevin SCHWARZ, Rasmus WORMSTAEDT
-
Publication number: 20230394360Abstract: A method of training an artificial intelligence circuit is provided. The method includes the steps of providing a training data set, the training data set encompassing training data of a frequency spectrum including a guard band and/or training data concerning a radio frequency power in the guard band, and feeding the training data set into the artificial intelligence circuit to be trained, which processes the training data set in order to learn a standard frequency spectrum and/or a standard radio frequency power in the guard band, thereby enabling the artificial intelligence circuit, when trained, to determine a deviation from the standard frequency spectrum and/or to determine a deviation from the standard radio frequency power in the guard band. In addition, a monitoring method for identifying an anomaly in a radio frequency spectrum as well as a system for monitoring a radio frequency environment are described.Type: ApplicationFiled: March 29, 2023Publication date: December 7, 2023Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Kok Meng Wong, Peter John Green, Wee Chong Pay, Rajashekar Durai, Cyril Lee
-
Patent number: 11835565Abstract: Field probe for conducting antenna measurements by phaseless measurements. An antenna arrangement comprises three or four antennas for measuring RF waves. The measured RF waves are pairwise added and subtracted. Based on the result of the adding and subtracting operations, magnitude patterns and phase patterns are determined. In this way, magnitude and phase patterns of electromagnetic waves emitted by a device under test can be determined by a completely passive device.Type: GrantFiled: June 23, 2021Date of Patent: December 5, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Mert Celik, Hendrik Bartko
-
Patent number: 11835637Abstract: A method for radio direction finding using a direction finding system having an antenna, a magnetic field sensor and a control unit, the method comprising: receiving a radio frequency signal of at least one emitter via the antenna by the control unit obtaining a received signal; receiving a magnetic measurement value of the magnetic field at the direction finding system via the magnetic field sensor; correcting the magnetic measurement value obtaining a corrected magnetic measurement value; correcting the received signal obtaining a corrected signal; and determining the precise bearing of the emitter based on the corrected received signal and the corrected magnetic measurement value. Further, a direction finding system and a platform are disclosed.Type: GrantFiled: November 11, 2019Date of Patent: December 5, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Andreas Baumeister
-
Patent number: 11835642Abstract: The invention relates to a flying apparatus for calibrating a radar system including: a base body, wherein the base body includes: at least one rotor adapted to generate lift, a drive configured to drive the rotor, and a control unit configured to control a flying operation of the flying apparatus; and a radar reflective structure, wherein at least one part of the radar reflective structure is movably mounted to the base body, and wherein the at least one part can be moved actively or passively.Type: GrantFiled: June 19, 2020Date of Patent: December 5, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Christian Krawinkel
-
Patent number: 11835559Abstract: An over-the-air test system for testing a device under test over-the-air is described. The over-the-air test system includes a reflector with a focal point, one center antenna and antenna elements. The center antenna is orientated towards the focal point of the reflector. The antenna elements are symmetrically located around the center antenna. An operational frequency range of the center antenna is different to an operational frequency range of the antenna elements. Further, a method of performing an over-the-air measurement of a device under test by using an over-the-air test system is described.Type: GrantFiled: May 14, 2021Date of Patent: December 5, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Corbett Rowell
-
Publication number: 20230384371Abstract: The present disclosure generally relates to a method for generating a signal test specification, a data processing circuit, and a cloud system. The signal test specification is to be applied by a measurement device for testing a device under test. At least one first voltage requirement and at least one first timing requirement for a first power rail signal of the device under test to be tested are stored in a structured file format. At least one second voltage requirement and at least one second timing requirement for a second power rail signal of the device under test to be tested are stored in a structured file format. At least one relative constraint having a relation between at least two of voltage requirements and timing requirements is stored in a structured file format.Type: ApplicationFiled: May 25, 2022Publication date: November 30, 2023Applicant: Rohde & Schwarz GmbH & Co. KGInventor: Markus Herdin
-
Patent number: 11828801Abstract: A system for over-the-air testing of a device under test includes a measurement antenna, a reference antenna, a device under test capable of wirelessly transmitting and/or receiving complex radio frequency signals, and an analyzer. The analyzer has at least two ports, wherein the reference antenna is connected with a first port of the analyzer. The measurement antenna is connected with a second port of the analyzer. The analyzer is capable of determining a phase difference and a power ratio of radio frequency signals received via the measurement antenna and the reference antenna. The analyzer is capable of performing an IQ analysis on complex radio frequency signals. Further, a method of over-the-air testing of a device under test is disclosed.Type: GrantFiled: March 28, 2022Date of Patent: November 28, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Mert Celik, Hendrik Bartko, Benoit Derat
-
Patent number: 11830651Abstract: Magnetic core for a balun, balun with a magnetic core and method for manufacturing a magnetic core. In particular, a magnetic core is provided comprising multiple core elements, wherein the individual core elements are concentrically arranged. Furthermore, a heat sink is arranged between two adjacent core elements. By using multiple core elements for a magnetic core, the individual core elements can be adapted to different frequency ranges. In this way, the magnetic core may be used for a balun having a broad frequency range. Furthermore, thermal energy generated in the magnetic core can be dissipated by the heat sinks between the individual core elements. In this way, the power handling capability of the magnetic core can be increased.Type: GrantFiled: June 4, 2019Date of Patent: November 28, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Florian Ohnimus, Karl-Martin Müssener
-
Patent number: 11831530Abstract: A jitter determination method for determining jitter associated with a packet-based data stream is described. The jitter determination method includes, for example, receiving at least two data packets associated with the packet-based data stream; selecting one data packet of the at least two data packets to be a reference data packet; determining initial jitter data based on the at least two data packets, wherein the initial jitter data comprises information on actual arrival times of the at least two data packets, respectively; determining expected arrival times for the at least two data packets, respectively; determining a time bias associated with the packet-based data stream based on at least the determined expected arrival time and based on at least the actual arrival time of the data packet not selected to be the reference data packet; and determining corrected jitter data based on the initial jitter data and based on the determined time bias.Type: GrantFiled: May 12, 2022Date of Patent: November 28, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Anna Llagostera
-
Patent number: 11824668Abstract: A redundant system for processing at least one signal is described wherein the redundant system has N+1 devices include N operational devices and one reserve device. The N operational devices and the reserve device are interconnected with each other. The redundant system includes a system control integrated within one of the devices of the redundant system. The redundant system further includes switches that are associated with the operational devices. In case of a failure of a respective operational device, the system control is configured to cause at least one of the devices to operate the switch associated with the respective operational device having the failure. Further, a method of operating a redundant system for processing at least one signal is described.Type: GrantFiled: August 4, 2020Date of Patent: November 21, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventor: Lothar Schenk
-
Patent number: 11822769Abstract: A radar target simulator for simulating a radar target is disclosed. The radar target simulator comprises a display module and an input module via which a user of the radar target simulator is enabled to define a target to be simulated. The radar target simulator also comprises a processing module that is connected with the display module and the input module in a signal transmitting manner. The display module and the processing module together provide a graphical user interface for the user of the radar target simulator. The graphical user interface provides a two-dimensional representation of an at least two-dimensional space. The processing module receives at least one input signal from the input module based on an input of the user. The input of the user is associated with input coordinates in the two-dimensional representation. The processing module processes the at least one input signal, thereby generating a symbol of the target defined.Type: GrantFiled: June 12, 2020Date of Patent: November 21, 2023Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Baris Guezelarslan, Dominik Hettich, Yassen Mikhailov