Iad Gesellschaft Für Informatik, Automatisierung Und Datenverarbeitung Mbh

Broadband United Gmbh

Iad Gesellschaft Für Informatik, Automatisierung Und Datenverarbeitung

Iad Gesellschaft Fuer Informatik, Automatisierung Und Datenverarbeitung Mbh

Hermann Hampel

Georg Fischer

André Kaup

Ulrich Berold

Johannes Hampel

Christoph Reck

Lorenz-Peter Schmidt

Gerd Bumiller

Manfred Deinzer

Markus Pieger

Katharina Quast

Johannes B Huber

Jochen Weinzierl

Daniel Popp

Georg Herrmann

Xianglong Yin

Andreas Ossig

Maxym Yakymchuk

Roman Tzschoppe

Ralph Trommer

Andreas Bänisch

Oliver Eckhof

Abdul Rahman Hanoun

Martin Hirschbeck

Johannes GÖTZFRIED

Christoph Dipl-Ing Reck

Abdulrahman Hanoun

A transmitting and receiving device having a module (GSZ) with a configurable HF high-power amplifier (HPA) that includes a main power amplifier (DM) with a main amplifier core and at least one peak power amplifier (DP) having an auxiliary amplifier core. A switching element connected to inputs of the main power amplifier and the at least one peak power amplifier is connected to a digital input signal divider (ET) having a plurality of outputs and an output combiner (C) is connected to outputs of the amplifier cores for the main power amplifier and the at least one peak power amplifier. A multi-harmonic transformation line (LAH) is connected at the amplifier core output of the main power amplifier and at the amplifier core output of the at least one peak power amplifier, and a circulator (Z) is connected to the output of the output combiner or an impedance converter (AN).

Transmitting and receiving device having a wide-band HF power amplifier, in particular an N-way Doherty amplifier having active load modulation

In order to achieve a universal, flexible and highly integrated operating device for driving various lamps, ensuring the protection of the entire operating device and of the appliances connected thereto by means of staggered protective measures at both the input and the output, starting from the preamble of claima first branch for connecting a lamp to a first of the interface circuits (SS) and a second branch for connecting at least one communication module to a second of the interface circuits (SS) are connected to the coarse protection circuit (G) which short-circuits an overvoltage of the mains voltage occurring at the input of the operating device. In the first branch, a line filter (NF) is connected to the coarse protection circuit (G) and a clamp circuit (K) consisting of the fine protection circuit (F) and of a first energy absorber (E) is connected to the line filter (NF). When the residual pulse voltage is too high, the fine protection circuit (F) activates the first energy absorber (E), the overvoltage pulse is short-circuited and the short-circuit is deactivated again when the mains voltage reaches the next zero crossing. A second energy absorber (E) which, when it is switched on, limits the current with the aid of a temperature-dependent resistor (NTC), is connected to the first energy absorber (E). Moreover, the first interface circuit (SS) comprises a protection circuit (&#xdc;S) against overvoltage and overcurrent, and an intermediate protection circuit (M) consisting of a transmitter (&#xdc;) and of a first fine protection circuit (F) is connected to the coarse protection circuit (G) in the second branch. A filter (FK) for separating communication signals fed in parallel into the power supply grid is connected to the first fine protection circuit (F) and a second fine protection circuit (F) is connected to this filter (FK). In order to protect the second interface circuit (SS) of the operating device from overvoltage and overcurrent coming from the communication module and acting upon the operating device, the second interface circuit (SS) comprises a protection circuit (&#xdc;S) against overvoltage and overcurrent. The invention is used in the field of protection systems against overvoltage.

Operating device with staggered protection circuits against overvoltage and overcurrent and antenna for driving intelligent lamps and lighting appliances

A light suitable for lighting take-off and landing runways and taxiways of airports that includes a housing cover provided with a light passage opening, an optical system including at least one light-emitting diode module with at least one LED-chain having a plurality of light-emitting diodes as light sources, a reflector, and a prism having a shape complementary to that of the light passage opening, an insert and a sealing ring, which is arranged between the housing cover and the insert. On an underside of the housing cover of the light, the at least one LED module and reflector are arranged in a first chamber, which is separated from a second chamber of the light by a seal including a flexible insulating and heat-conducting film arranged between the reflector and the underside of the housing cover.

Device for lighting the take-off and landing runways and the taxiway at airports

A method for frequency- and time-selective interference suppression for a communication system based on OFDM, and a receiver therefor. To achieve a much lower bit error rate at the output of the receiver or to permit greater interference or a lower signal-to-noise ratio (in a prior art L-DACS1 receiver, at least 45 nautical miles) for the same transmission power, the invention provides: a filter bank pulse blanking method FBPB in which the sampled received signal is applied to a blanking unit for frequency-selective pulse blanking, which blanking unit consists of an analysis filter bank having M sub-bands; a module for frequency-selective pulse blanking of the sub-band signals; and a synthesis filter bank, which reassembles the signal. The analysis filter bank, which breaks down the received signal into multiple sub-bands on a frequency-selective basis, is used before OFDM windowing, such that the sub-band breakdown applies pulse blanking on a sub-band-selective basis.

Method for frequency&#x2014;and time-selective interference suppression for a communication system based on OFDM, and receiver therefor

A delta-sigma modulator for a switching amplifier, which achieves a high signal-to-noise ratio (SNR) in the multi-MHz range and keeps the noise-transfer function over the useful frequency range as low and as flat as possible. A series connection of a parallel-serial converter and a downstream swap element for the serial output signal yof the parallel serial converter is connected to the multi-bit output of the delta-sigma-modulator. The swap element swaps, based on the last bit value 0 or 1 of a preceding word in the resulting output signal y, the sequence of the binary zeroes and ones of the current word, where present, and then an input signal is fed to the delta-sigma-modulator. The signal is capable of having a frequency range above 25 kHz, and is prepared with a low oversampling ratio and a high SNR. And, 1-0 or 0-1 transitions are largely eliminated at the word boundaries.

Device having a delta-sigma modulator and a switching amplifier connected thereto

A reconfigurable bandpass filter including at least a tunable planar combline filter including varactor diodes arranged on a carrier board. For automatic calibration of adjustment of blocking voltage during operation, the reconfigurable bandpass filter includes a filter control offering an external abstracted interface. A memory is connected with the filter control. The memory stores calibration data. For approximating of the best possible filter characteristic, the filter control determines, based on memorized data, the best configuration of tuning voltages. The reconfigurable bandpass filter can be used in the field of secondary radar systems.

Reconfigurable bandpass filter based on a planar combline filter comprising varactor diodes

Disclosed are devices and methods for identification and cancellation of interfering signals, especially far-end crosstalk (FEXT), in a communication system with at least two pairs of wires of a balanced line bundle. The devices include at least a cancellation circuit, which is connected downstream to dead time elements, an interference characteristic detection device and a cancellation control unit, which controls a setting of filter coefficients of an adaptive filter and the cancellation signal source. The adaptive filter is configured as a digital cancellation filter having filter coefficients separated in time by a first delay element having the delay time T, and having an adjustable additional delay time t, whereby the setting of the additional delay time &#x3c4; takes place together with the setting of filter coefficients.

Device and method for identification and cancellation of crosstalk

A measurement device, which communicates data to at least one system, and which has the capability of identifying measurement data returned by the system via the data communication as its own, and the capability to rule out manipulation of measurement values without use of a public or non-personal key. The measurement device includes at least an encryption and/or signature encoder that supplies information including a validity and reliability identifier for inspecting the integrity of the data, and compiles said information into a current data set and transfers it to at least said communication interface for transfer, and at least an encryption and/or signature decoder that inspects data sets returned via the communication interface using one or more keys in memory for integrity of data content and identification of the measurement device and, upon successful inspection of this data, supplies said data for further processing, evaluating or displaying.

Measurement device, particularly energy counter and method for recognition of manipulations

A method and system for automatic object detection and subsequent object tracking in accordance with the object shape in digital video systems having at least one camera for recording and transmitting video sequences. In accordance with the method and system, an object detection algorithm based on a Gaussian mixture model and expanded object tracking based on Mean-Shift are combined with each other in object detection. The object detection is expanded in accordance with a model of the background by improved removal of shadows, the binary mask generated in this way is used to create an asymmetric filter core, and then the actual algorithm for the shape-adaptive object tracking, expanded by a segmentation step for adapting the shape, is initialized, and therefore a determination at least of the object shape or object contour or the orientation of the object in space is made possible.

Method and system for automatic object detection and subsequent object tracking in accordance with the object shape

Disclosed is a modular, expandable measuring device that includes an access-protected area. In one embodiment, the measuring device is a modular energy meter (EZ), which includes a two-part housing (SA, U) having a detachable connection for holding together the housing parts; at least one internal module (Z, K, IO, IR) arranged in a protected area; at least one external module (EO, ER, EK, EKR) arranged outside of the protected area; and at least one optical interface (OSE, OSI) which is arranged in the internal module (Z, K, IO, IR) and/or in the external module (EO, ER, EK, EKR) and is used for communication, including the detection of the opening of the protected area.

Modular, expandable measuring device comprising an access-protected area

A device and method for secondary radar signal reception with quasi-dynamic or dynamic sectoring of a space to be monitored. The device includes at least one antenna assembly including antenna elements for the reception of transmitted secondary radar signals, a signal processing unit connected via a connection point to the antenna elements for the joint processing of received antenna signals, outputs associated with a couple matrix in the signal processing unit and individual receivers. The couple matrix includes adjustable coefficients for sectoring of the space to be monitored and for performing a superposition of the antenna signals using a multiplicative-additive combination of the received antenna signals. In the case of dynamic sectoring of the space, each receiver receives for each receipt telegram another weighted superposition of the antenna signals with certain couple coefficients, and in the case of quasi-dynamic sectoring the adjustable coefficients are fixed over a longer time period.

Device for receiving secondary radio signals with quasi-dynamic or dynamic sectoring of the space to be monitored and corresponding method

A method and a system for spatial scalable region of interest transcoding of JPEG2000 coded video frames for video surveillance systems. Based on a user defined ROI, the method transcodes HD frames into images in moderate resolution with a ROI in HD resolution. The transcoder extracts all packets belonging to the ROI or the lower resolution levels of the background from the JPEG2000 bitstream. Non-ROI packets of higher resolution levels are replaced by empty packets. The ROI is tracked using a mean shift algorithm to guarantee that always the correct image details are extracted in high resolution. Since the transcoding is performed by extracting and replacing packets of the codestream, an expensive re-encoding of the code-stream is not required. Thus, the transcoding technique is of low complexity and shows a short processing time. Combining the transcoding technique with mean shift tracking leads to a powerful video transcoding technique.

Method and system for transcoding regions of interests in video surveillance

A device and a method for the improved directional estimation and decoding by means of secondary radar signals. The device includes: at least one array of antenna elements; a low noise first amplifier and bandpass filter combination connected to a plug-in connector S of the respective antenna elements; a first linear amplifier being connected at a filter output of said combination for amplifying the band-limited signal; a mixer connected to the first linear amplifier for the frequency conversion into a ZF region; a second linear amplifier and bandpass filter combination connected to the mixer output for amplifying and limiting the bandwidth of the signal in the ZF region; a first analog-to-digital converter connected to the second bandpass filter; a configurable signal processor connected to the first analog-to-digital converter; and a processing unit connected to the configurable signal processors.

Device and method for the improved directional estimation and decoding by means of secondary radar signals

Differently designed measuring systems exist of which most contain a central signal processing unit and a number of electrical measuring components, and in which the measured values furnished by the measuring components are optically transmitted over optical wave guides. The aim of the invention is to provide a measuring system of this type, which has low power consumption and enables a reliable optical data transmission. To this end, an optical loop is provided between a central measuring unit (MG) and a sensor head (SK). Microprocessors (MP, MP), which are situated inside the central measuring unit (MG) and inside the sensor head (SK), carry out transmitting, measuring and monitoring tasks as a distributed controller with bi-directional data communication. A frame synchronization signal serves both for supplying power as well as for deriving a clock signal for block-oriented data transmission. A data communication is carried out for conducting a parameterization and/or programming between the central measuring unit (MG) and the sensor head (SK), and a pre-preprocessing of the measured values is carried out in the sensor head (SK), particularly a measured value correction and/or a range switching and/or a reprogramming of the filtering characteristics and/or an automatic compensation are/is carried out in the sensor head (SK).

Measuring system comprising an intelligent sensor head and having a reduced power consumption for medium-voltage or high-voltage systems or in mining, and method therefor

Growing community of inventors

Grosshabersdorf, Germany

Hermann Hampel