Abstract: For testing a transformer (20) the transformer (20) is emulated by an equivalent circuit (30) and an accuracy of the transformer (20) relative to the equivalent circuit (30) is determined by evaluating a test response of the transformer (20) and is then automatically converted to an operating condition-related accuracy of the transformer (20).

Abstract: The invention relates to methods and systems for detecting periodic impairments of media streams of real-time communication sessions within a packet-switched network. The invention is performed in a passive monitoring system monitoring a plurality of media streams providing quality data records for each monitored media stream and for predefined time intervals. For each media stream a frequency distribution is generated, which is indicative of the number of good quality data records between two quality data records indicative of impairment. If a maximum exists in the media stream's frequency distribution for a given number of consecutive good quality data records, the stream is determined to be periodically impaired and said given number of consecutive good quality data records for which the maximum exists indicates the periodicity in the impairment of the media stream.

Abstract: For testing a transformer (20) the transformer (20) is emulated by an equivalent circuit (30) and an accuracy of the transformer (20) relative to the equivalent circuit (30) is determined by evaluating a test response of the transformer (20) and is then automatically converted to an operating condition-related accuracy of the transformer (20).

Abstract: A rolling bearing comprising a rolling bearing cage having a plurality of rolling element pockets arranged in at least one row to receive at least one row of rolling elements, two lateral rings and a plurality of crosspieces connecting the two lateral rings, such that the plurality of rolling element pockets are formed between the plurality of crosspieces, and at least one empty pocket. The rolling bearing cage includes fewer rolling elements in the at least one row than the number of rolling element pockets, such that the at least one empty pocket does not receive a rolling element. A method for producing a rolling bearing cage is also provided.

Abstract: In order to effectively protect a particle measuring device (8) against temperatures that are too high and/or too low, it is provided that the temperature (T) of the sample gas is measured upstream of a first temperature-sensitive sample gas processing or sample gas measuring device (20, 21, 22, 42) in the particle measuring device (8) and that the measured temperature (T) is compared with a first and/or second limit value (To, Tu) and that the particle measuring device (8) is switched into a safe mode if the measured temperature (T) exceeds the first limit value (To) or falls below the second limit value (Tu).

Abstract: The invention relates to methods and systems for detecting periodic impairments of media streams of real-time communication sessions within a packet-switched network. The invention is performed in a passive monitoring system monitoring a plurality of media streams providing quality data records for each monitored media stream and for predefined time intervals. For each media stream a frequency distribution is generated, which is indicative of the number of good quality data records between two quality data records indicative of impairment. If a maximum exists in the media stream's frequency distribution for a given number of consecutive good quality data records, the stream is determined to be periodically impaired and said given number of consecutive good quality data records for which the maximum exists indicates the periodicity in the impairment of the media stream.

Abstract: This invention relates to methods for correlating at least one media path and a signaling session of a packet-switched network and to an implementation of these methods in hardware and software. To overcoming one or more of the limitations and challenges on the correlation of signaling plane and media plane of services, the invention defines a key, which can be used for correlation of media streams and signaling sessions. The invention is based on a signaling probe identifying new services and associated media paths of the media plane by detecting their corresponding signaling sessions and determining for each service a signaling session identifier. The signaling probe registers the signaling sessions and their media paths at a correlation unit using the signaling session identifiers as a key, which allows a media probe to query the correlation unit for respective signaling session identifiers that correspond to media paths detected in the media plane traffic.

Abstract: The present invention relates to a method, a system and a VoIP signal generator for determining the quality of an IP network connection, comprising the steps of generating a measuring signal by way of a signal generator for measuring the quality of an IP network connection; determining, by way of the signal generator, for each of the generated at least one measuring signal the respective signal quality of each generated measuring signal; and simultaneously transmitting the at least one measuring signal and the respective quality information over the IP network connection to a receiver.

Abstract: The invention concerns a rolling element cage (32) made of a metal strip material that is profiled, stamped, cut to length, and bent into a round shape, wherein the ends of the cut-to-length strip sections are joined together by welding. In order to make it possible to influence the lubricant distribution in the bearing and the vibration characteristics of the cage and thus of the overall bearing system, according to the invention the strip section ends (34, 36) are joined together with a predetermined axial offset (a) and/or radial offset (b).

Abstract: The invention concerns a rolling element cage (32) made of a metal strip material that is profiled, stamped, cut to length, and bent into a round shape, wherein the ends of the cut-to-length strip sections are joined together by welding. In order to make it possible to influence the lubricant distribution in the bearing and the vibration characteristics of the cage and thus of the overall bearing system, according to the invention the strip section ends (34, 36) are joined together with a predetermined axial offset (a) and/or radial offset (b).

Abstract: The invention concerns a rolling bearing with a rolling bearing cage (1) having a plurality of rolling element pockets (2) arranged in at least one row to receive at least one row of rolling elements, wherein the rolling bearing cage (1) consists of two lateral rings (3) and a plurality of crosspieces (4) connecting them, between which crosspieces are formed the rolling element pockets (2), and having at least one empty pocket (5). In order to achieve cost-effective manufacture of the rolling bearing cage (1) with the fewest possible changes as compared to a rolling bearing cage fully populated with rolling elements, provision is made according to the invention that the rolling bearing cage (1) is equipped with fewer rolling elements in one row than corresponds to the number of rolling element pockets (2), causing the rolling bearing cage (1) to have empty pockets (5) without rolling elements in the at least one row of rolling element pockets (2).

Abstract: This invention relates to methods for correlating at least one media path and a signaling session of a packet-switched network and to an implementation of these methods in hardware and software. To overcoming one or more of the limitations and challenges on the correlation of signaling plane and media plane of services, the invention defines a key, which can be used for correlation of media streams and signaling sessions. The invention is based on a signaling probe identifying new services and associated media paths of the media plane by detecting their corresponding signaling sessions and determining for each service a signaling session identifier. The signaling probe registers the signaling sessions and their media paths at a correlation unit using the signaling session identifiers as a key, which allows a media probe to query the correlation unit for respective signaling session identifiers that correspond to media paths detected in the media plane traffic.

Abstract: The invention relates to the technical field of nanoparticles. The subject matter of the invention is a method for treating nanoparticles for the reduction of ligand spheres.

Abstract: A measuring apparatus for scanning moving, preferably sheet-like, printing materials in a printing material-processing machine, such as a press for processing sheet material. The apparatus has a measuring device which can be moved, at least in the transport direction of the printing materials. The measuring apparatus is set up in such a way that, during a measuring operation, the measuring device is moved over the moving printing material in the transport direction of the printing material with a differential speed relative to the transport speed of the printing material.

Abstract: A printing press and a method for controlling a printing press include rotatably mounted cylinders. At least two adjacent cylinders roll on one another through bearer rings. At least one of the adjacent cylinders can be rotated actively relative to at least one of the bearer rings by a setting device.

Abstract: The present invention relates to a method, a system and a VoIP signal generator for determining the quality of an IP network connection, comprising the steps of generating a measuring signal by way of a signal generator for measuring the quality of an IP network connection; determining, by way of the signal generator, for each of the generated at least one measuring signal the respective signal quality of each generated measuring signal; and simultaneously transmitting the at least one measuring signal and the respective quality information over the IP network connection to a receiver.

Abstract: The invention relates to a wireless communication device comprising an electrically operated radio module for wireless communication by receiving and/or transmitting communication signals in a transmitting and/or receiving mode; an electrically operated processor unit for controlling wireless communication via the radio module; a motion sensor for detecting movements and/or accelerations of the communication device, wherein the motion sensor outputs at least one detection signal to the processor unit in the event of the occurrence of movements and/or accelerations of a predetermined magnitude, wherein the processor unit is coupled to the motion sensor and the radio module in such a manner that it occasionally puts the radio module into the transmitting and/or receiving mode when outputting the at least one detection signal of the motion sensor.

Abstract: The invention relates to a wireless communication device comprising an electrically operated radio module for wireless communication by receiving and/or transmitting communication signals in a transmitting and/or receiving mode; an electrically operated processor unit for controlling wireless communication via the radio module; a motion sensor for detecting movements and/or accelerations of the communication device, wherein the motion sensor outputs at least one detection signal to the processor unit in the event of the occurrence of movements and/or accelerations of a predetermined magnitude, wherein the processor unit is coupled to the motion sensor and the radio module in such a manner that it occasionally. puts the radio module into the transmitting and/or receiving mode when outputting the at least one detection signal of the motion sensor.

Abstract: A module for a machine for processing sheet printing materials, has interfaces for control communication, a memory unit which can be read and written and which contains the properties of the module, and also a communications device which is used for communication with further modules and/or a higher-order control system of the machine. The communications device is operatively connected to the memory unit.

Abstract: Method and device for measuring a dielectric response of an electrical insulating system, wherein a first measurement result is determined by a frequency domain method and a second measurement result is determined by a time domain method, whereupon the first measurement result and the second measurement result are combined to form an overall measurement result as the dielectric response. Standard types of measurement methods, for example the FDS and PDC methods, may be used as measurement methods for the frequency domain and the time domain.