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| Number | Title | Issue Date |
| 8174254 | Measuring device with negative-feedback DC voltage amplifier A measuring device having a detector with at least one detector element and, connected downstream of the detector, a DC voltage amplifier with at least one input (and at least one output. The DC voltage amplifier provides at least one negative-feedback path, which e... | 05/08/2012 |
| 8149882 | System and method for operating a bus system A bus system for the real-time communication of a superordinate unit with one or more subordinate units is used for exchanging address and data information via a bus. For the rapid exchange of messages, further fields are provided between the fields for the address ... | 04/03/2012 |
| 8149817 | Systems, apparatus, methods and computer program products for providing ATSC interoperability Systems, apparatus, methods and computer program products are provided for causing a dataframe to be emitted at an air interface of an antenna. A memory stores a transmission to antenna delay value (TAD). An offset calculator calculates an offset value based on an e... | 04/03/2012 |
| 8143975 | Coaxial-coplanar microwave adapter In a microwave transition from a coaxial line (1) to a coplanar line system (3), in a longitudinal hole (5) of an outer conductor housing (6), the round inner conductor (4) of the coaxial line (1) continues in a planar inner... | 03/27/2012 |
| 8126670 | Method and device for calibrating a network analyzer for measuring at differential connections A method for calibrating vectorial network analyzers, which provide exactly n test ports, for the testing of electrical components with differential connections, where several calibration measurements are implemented, and where several different calibration standard... | 02/28/2012 |
| 8126256 | Device and method for analysis of signal characteristics with the use of masks An analysis device for analyzing a signal characteristic with the use of a mask. The analysis device includes a buffer device for the provision of a signal-image address of a signal-image point of a signal image and for the provision of a mask-image address of a mas... | 02/28/2012 |
| 8102171 | Measuring device and measuring method for measuring the envelope power and the mean-power value A measuring device for measuring the envelope power and the mean-power value of a high-frequency signal. The measuring device includes a detector for detecting the high-frequency signal and for generating an analog detector signal, an analog/digital converter for ge... | 01/24/2012 |
| 8076774 | Transistor clamping device A transistor-clamping device for a transistor is provided with a holding block and a spring. The holding block engages over the transistor, so that the spring is pre-tensioned. A pressure plate is provided between the holding block and the transistor. The spring fix... | 12/13/2011 |
| 8058947 | High-performance coupler A high-load coupler with a first input port, which is connected via a first stripline to an output port, and with at least one second input port, which is connected to an absorber, which provides at least one second stripline, a coupling portion and a connection por... | 11/15/2011 |
| 8046182 | Method and system for digital triggering of signals on the basis of two triggering events separated by a time difference An approach is provided for digital triggering a recording of one or several signals sampled at individual sampling instants on a digital oscilloscope. The triggering is carried out when the interval between two recurrent triggering events is less or greater than a ... | 10/25/2011 |
| 8044725 | Signal generator with directly-extractable DDS signal source A signal generator including a DDS-signal source that is configured to operate according to the principle of direct digital synthesis (DDS), and a PLL signal synthesizer that is configured to operate according to the principle of phase locked loop (PLL) using an out... | 10/25/2011 |
| 8040125 | Device and method for the analysis of a measured signal transmitted via a multi-channel system A device, in particular, a multi-channel oscilloscope, for the analysis of at least one measured signal transmitted via a multi-channel system, with several measurement channels. The device includes in each case a sampling device, a baseband mixing device, and a fil... | 10/18/2011 |
| 8031018 | Oscillator with coupled amplifier An oscillator including a resonator with at least one first tuneable element, with which a resonant frequency of the resonator can be varied. The oscillator further includes an amplifier, which provides an amplification element, connected to the resonator at a coupl... | 10/04/2011 |
| 8019286 | Method and system for determining the amplitude and/or phase of the output signal for a transmission body depending on the amplitude of the input signal 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),... | 09/13/2011 |
| 7990227 | Phased-locked loop (PLL) synthesizer-synthesizer with improved voltage-controlled oscillator (VCO) pre-tuning An apparatus for providing Phased-Locked Loop (PLL) synthesis comprises a phase detector, at least one switchable filter, an oscillator controlled by a control voltage (uPLL) and a divider. The controlled oscillator has two inputs, wherein the control vol... | 08/02/2011 |
| 7990186 | Signal conditioning circuit with a shared oscillator A circuit for signal conditioning including a first stage with a digital/analog converter, a second stage with an I/Q-modulator, and at least one third stage with a mixer. Instead of a multiplicity of independent oscillators, a shared oscillator is provided for the ... | 08/02/2011 |
| 7980866 | Plug-in connector comprising a modified insulator duct for shielding electromagnetic radiation A plug-in connector (1, 1′, 1″, 1′″) is provided that includes an insulator duct (2, 2′, 2″, 2′″) which forms one or more additional openings (3, 3′, 3″′) for conducting terminals (4, 4′, 4″, 4′″) and at leas... | 07/19/2011 |
| 7969376 | Horn antenna The invention relates to an antenna (1) for a transmitting operation and/or a receiving operation with a decoupling apparatus (2a) and/or a coupling apparatus (2b) for electromagnetic waves. The antenna (1) according to the ... | 06/28/2011 |
| 7957940 | Method and system for the detection and/or removal of sinusoidal interference signals in a noise signal A method for removing sinusoidal interference signals from a noise signal. The method includes transforming a measured signal (x(t), x(μ·Δt)), which is composed of a limited number of sinusoidal interference signals (Ak·ej(ωk | 06/07/2011 |
| 7936173 | Method for direct measurement of the mixed-mode scattering matrix with a vectorial network analyzer In a method for the excitation of port groups of a multi-port device under test with coherent incident waves of the same frequency, which provide defined amplitude ratios and phase differences within each port group, the waves are generated respectively by one signa... | 05/03/2011 |
| 7933321 | Measuring system with a reference signal between a signal generator and a signal analyzer A measuring system (1) comprises a signal generator (2), generating a digital modulated high frequency measuring signal (MS), for supplying to the input (4) of a test unit (4). A signal analyser (5) connected to the output (6 | 04/26/2011 |
| 7917151 | Flexible network architecture with user group support A base station of a mobile communication network is connected to a core network and is operable in a normal mode and in a direct mode. The base station detects a request originating from a first user equipment to communicate with a second user equipment. The first u... | 03/29/2011 |
| 7911999 | Radio-transmission system and method of operation The invention relates to a radio transmission system comprising a plurality of processing layers for the transmission of data packets between various radio appliances in a radio channel. A first functional unit in a physical radio transmission layer analyses the rad... | 03/22/2011 |
| 7905742 | Coaxial plug for connecting to a BNC coaxial socket The invention relates to a coaxial plug for connecting to a high-frequency transmission line. The housing of the coaxial plug has two slits arranged opposite each other, extending from the plug-side end in the axial direction, and both arranged and designed to form ... | 03/15/2011 |
| 7895480 | Method for testing the error ratio BER of a device according to confidence level, test time and selectivity A method for testing the error ratio BER of a device under test against a specified allowable error ratio comprises the steps: measuring ns samples of the output of the device, thereby detecting ne erroneous samples of these ns samples, defining BER(ne)=ne/ns as the... | 02/22/2011 |
| 7890567 | Method for determining deviations of an end-system message from a reference message A method is disclosed for determining deviations of a modular end-system message, generated in a hierarchically structured end-system of a telecommunications device, from a reference message. A reference message is read, and an end-system message generated in the en... | 02/15/2011 |
| 7885421 | Method and system for noise measurement with combinable subroutines for the measurement, identification and removal of sinusoidal interference signals in a noise signal An approach is provided for measuring, identifying, and removing at least one sinusoidal interference signal (Ak·ej(ωkt+φk), Ak·ej(μ·ω... | 02/08/2011 |
| 7869534 | Method and apparatus for clock-pulse synchronization with an offset QPSK-modulated transmission signal An approach is provided for clock-pulse synchronization between an amplitude-modulated or phase-modulated received signal and a transmitted signal by estimating the timing offset between the received signal and the transmitted signal by maximum-likelihood estimation... | 01/11/2011 |
| 7868624 | Method and system for correcting the feedback from electrical measurement converters to a device under test An approach is provided for correcting the feedback from electrical measurement converters to the device under test in the case of measurements in the high-frequency and/or microwave range. At least three measurements are implemented with respectively different inpu... | 01/11/2011 |
| 7860674 | Method and system for secure digital triggering for an oscilloscope An approach is provided for digital triggering a recording of one or more digitized signals on a digital oscilloscope by means of carrying out a level comparison for determining a triggering instant in each case between two successive sample values of a reference si... | 12/28/2010 |
| 7859361 | Directional coupler In a directional coupler with two coupled lines arranged in a flat chamber of an enclosed metal housing within the coupling region side-by-side in the longitudinal direction and at a spacing distance from one another, of which the ends are connected to connecting po... | 12/28/2010 |
| 7840384 | Method and system for the detection and/or removal of sinusoidal interference signals in a noise signal A method and a system for the detection and/or removal of sinusoidal interference signals in/from a noise signal transforms a measured signal (x(t), x(μ·Δt)) composed of a limited number of sinusoidal interference signals (Ak·ej(ω | 11/23/2010 |
| 7825839 | Measuring device and measuring method for measuring the power of a high-frequency signal A measuring device for measuring the power of a high-frequency signal including a detector for detecting the high-frequency signal and for generating an analog detector signal, an analog/digital converter for generating a digital signal and an evaluation device for ... | 11/02/2010 |
| 7822139 | Apparatus, systems, methods and computer products for providing a virtual enhanced training sequence A system, method, apparatus and computer code for communicating a training sequence for initializing an equalizer in a digital receiver are provided including receiving a digital signal containing data to be broadcast from a digital RF transmitter and inserting the ... | 10/26/2010 |
| 7801489 | Method and device for measuring radio interference levels with frequency tracking A method for measuring radio interference levels in a specific frequency range. Said method consists in adjusting the frequency range by means of a pre-measurement; respectively detecting, for each measuring frequency one measuring level of the signal which is to be... | 09/21/2010 |
| 7782065 | Method of calibrating a network analyzer A method for calibrating a network analyzer having at least two test ports is described in which a completely known, transmitting first calibration standard, is designed as a two-port standard and is connected between two test ports of the network analyzer, is measu... | 08/24/2010 |
| 7778359 | Method and device for clock synchronisation with a vestigial-sideband-modulated transmitted signal A method for clock synchronisation between an amplitude-modulated or phase-modulated received signal (r(t)) and a transmitted signal (s(t)) estimates the timing offset (ε) between the received signal (r(t)) and the transmitted signal (s(t)) by means of a maximum-li... | 08/17/2010 |
| 7765075 | Method and device for spectral analysis in several frequency bands with different frequency resolution A method for spectral analysis of a signal (s1(t)) in several frequency bands with different frequency resolution adapts the two spectra of the signal (s1(t)) from adjacent frequency bands relative to one another in the transitional range of th... | 07/27/2010 |
| 7756516 | High-frequency measuring system having spatially separated high-frequency modules A high-frequency measuring system is provided for measuring a test device with a measuring device unit and at least one high-frequency module connected to the measuring device unit. Each high-frequency module is located spatially separated from the measuring device ... | 07/13/2010 |
| 7747403 | Method for measuring the phase jitter of a high-frequency signal and a measuring device for the implementation of this method In order to measure the phase jitter of a high-frequency signal, a spectrum analyzer is used. The high-frequency signal (HF) to be measured is either multiplied by M and/or the output frequency of the variable frequency oscillator of the spectrum analyzer is divided... | 06/29/2010 |
