Abstract: Disclosed examples include three-dimensional imaging systems and methods to reconstruct a three-dimensional scene from first and second image data sets obtained from a single camera at first and second times, including computing feature point correspondences between the image data sets, computing an essential matrix that characterizes relative positions of the camera at the first and second times, computing pairs of first and second projective transforms that individually correspond to regions of interest that exclude an epipole of the captured scene, as well as computing first and second rectified image data sets in which the feature point correspondences are aligned on a spatial axis by respectively applying the corresponding first and second projective transforms to corresponding portions of the first and second image data sets, and computing disparity values of a stereo disparity map according to the rectified image data sets to construct.

Abstract: A placement aid for placing a catheter and a sensor wire into a body including a replacement device arranged in an interchangeable and replaceable manner having a main body, a placement needle, a catheter and a sensor wire. The placement needle is arranged within the catheter so that a tip of the placement needle protrudes from an end of the catheter along a puncturing direction and penetrates the skin when the catheter is inserted along the puncturing direction to generate a skin opening through which the catheter can be guided up to a subcutaneous final position. The sensor wire is arranged in the placement needle when the catheter is inserted along the puncturing direction and when the subcutaneous final position of the catheter is reached, the placement needle can be withdrawn from the catheter against the puncturing direction and the sensor wire remains in the catheter.

Abstract: A receiver unit comprising a signal input configured to receive a receive signal including a plurality of data symbols, a symbol detection circuit configured to detect a subset of data symbols, a reliability measuring circuit configured to determine a reliability value for the data symbols, a feedback loop configured to detect the subset of data symbols and the reliability value iteratively, and a signal output circuitry configured to determine output values of the subset of data symbols on the basis of the detected subset of data symbols and the determined reliability value.

Abstract: Embodiments of the invention relate to a three-dimensional dummy object, in particular for functionally testing driver assistance systems in motor vehicles, comprising a head, a skeleton, a trunk, movable pelvis and movable legs. The skeleton comprises a trunk skeleton having cavities, to which the arms and legs are articulated, wherein the legs each have a thigh and a lower leg articulated to the thigh, wherein a drive unit and a receiver/control unit are installed in the trunk skeleton, which receiver/control unit receives signals correlating to the relative velocity of the moving dummy object as an input quantity, such that the movement pattern of the thighs and lower legs can be varied according to the relative velocity of the dummy object by means of an installed movement mechanism.

Abstract: Until now, ohmic consumers have been used to abruptly complete the output signal in RF surgical generators. Considering an RF surgical generator comprising a power supply with at least one storage capacitor and a controllable switching device with at least one energy storage device (e.g., a transformer) by which an RF output signal that can be delivered to an RF surgical instrument is generated, it is suggested herein that a regenerative device be provided between the energy storage device and the storage capacitor. Furthermore, a control mechanism is used for controlling the switching device and the regenerative device such that, if the RF output signal is to be completed, the regenerative device is energized for at least part of the time, and the energy storage is at least partially discharged in the storage capacitor.

Abstract: Embodiments of the invention relate to a system for producing collisions or near-collision situations between a collision body, in particular a vehicle, and a test object. The system comprises a fastening plate having a coupling mechanism, by means of which coupling mechanism the test object can be detachably coupled to the fastening plate, a drive belt which is fastened to the fastening plate, and a drive unit having a drive body for driving the drive belt. The drive unit, the drive belt, and the fastening plate can be placed directly on a floor in such a way that the drive body moves the drive belt and the fastening plate along the floor.

Abstract: Supply units for providing a high-frequency RF voltage and an RF current to electrosurgical instruments so that they can be used for cutting and/or coagulating tissue, while providing regulation of the RF current and the RF voltage and providing a corresponding feedback for the treating physician. A supply unit includes an RF generator unit for generating the RF output voltage, a measuring unit for determining an electrical load while an RF output current is being applied, a signal unit for outputting a haptically perceivable (e.g., tactile) signal and a control unit that is in communicative connection at least with the measuring unit and the signal unit to activate the signal unit as a function of the electrical load.

Abstract: A supply device for the operation of at least one medical instrument, in particular an electrosurgical instrument and/or a cryosurgical instrument and/or a water jet surgical instrument. The supply device includes a control unit for the control of the at least one medical instrument and a memory unit for the storage of configuration data which describe a state device with a plurality of states. The control unit is designed such that it reads in configuration data and converts the state device into a control program and controls the at least one medical instrument according to the control program. This ensures efficient control of medical instruments because the control programs used can be more efficiently checked for their correctness and updated accordingly.

Abstract: A high frequency surgery generator having an output circuit and a power oscillator for generating an HF output voltage. The power oscillator is designed to excite the output circuit at a first excitation frequency, which corresponds to a resonant frequency of the output circuit, in a first operating mode and to excite the output circuit at a second excitation frequency which differs from the first excitation frequency, which does not correspond to the resonant frequency of the output circuit, in a second operating mode.

Abstract: A dummy object is described which is particularly suitable for a functional testing of driver assistance systems for vehicles. The dummy object comprises a torso, at least one extremity representing an arm or a leg, wherein the extremity includes a proximal extremity portion mounted in an articulated manner at the torso and a distal extremity portion mounted in an articulated manner at the proximal extremity portion, and at least one drive which is arranged in the torso and is designed to move the proximal extremity portion relative to the torso. The proximal extremity portion can be moved in such a manner that a movement of the distal extremity portion, which is correlated with the movement of the proximal extremity portion, can be created by utilizing the mass inertia of the associated distal extremity portion.

Abstract: A balun includes an unbalanced port having a single-ended terminal, a balanced port having first and second differential terminals, and first and second series resonant LC circuits. The first series resonant LC circuit is connected between the first and second differential terminals, and includes a first element of a first type and one element of a second type connected in series. The second series resonant LC circuit is connected between the single-ended terminal and ground, and includes second and third elements of the first type and the one element of the second type connected in series. The one element of the second type is shared by the first and second series resonant LC circuits. The first differential terminal is connected between the one element of the second type and the third element of the first type.

Abstract: In a method suitable for tissue fusion or coagulation, after the start of treatment of the tissue, i.e., after completion of a first phase, a second phase is commenced, during which the biological tissue is treated for a certain specified process time with moderate energy input. The specification of a negative internal resistance of a supplying source enables the process in the second phase to have a treatment time that remains constant and thus avoids premature drying-out of the tissue. A sufficient and reliable bonding of the participating proteins in the moist milieu is reached.

Abstract: It is described an apparatus for determining a PLC-to-DSL crosstalk estimate. The apparatus comprises a PLC-to-DSL channel estimator which is arranged to receive an input signal, comprising a DSL contribution and a PLC-to-DSL crosstalk contribution, and which is arranged to determine channel state information of a PLC-to-DSL channel responsible for the PLC-to-DSL crosstalk contribution in the input signal. The apparatus further comprises a crosstalk processor which is arranged to determine the PLC-to-DSL crosstalk estimate based on the channel state information and a reconstructed PLC transmit signal.

Abstract: An electrosurgical generator for the treatment of biological tissue. The electrosurgical generator comprises a generator part which supplies a high-frequency (“HF”) treatment current with an HF voltage set according to a voltage control signal. A measuring device detects the HF treatment current and the HF voltage and generates corresponding current and voltage signals. The current signal and the voltage signal are fed to a conversion device which forms a real current signal corresponding to the real component of the HF treatment current. A regulation device compares the real current signal with a pre-settable target value and generates the voltage control signal on the basis of the comparison. The real component of the treatment current is determined and the generator part is adjusted so that said real component approximates to a pre-determined target value.

Abstract: A balun includes an unbalanced port having a single-ended terminal, a balanced port having first and second differential terminals, and first and second series resonant LC circuits. The first series resonant LC circuit is connected between the first and second differential terminals, and includes a first element of a first type and one element of a second type connected in series. The second series resonant LC circuit is connected between the single-ended terminal and ground, and includes second and third elements of the first type and the one element of the second type connected in series. The one element of the second type is shared by the first and second series resonant LC circuits. The first differential terminal is connected between the one element of the second type and the third element of the first type.

Abstract: An HF surgical device with an autostart function for cutting and/or coagulating biological tissue with HF current. The device comprises an HF generator for generating HF current, a selected output for connecting a monopolar/bipolar electrode to the HF surgical device, a first measurement device assigned to the output for measuring a first measured value for an impedance of the electrode connected to the output, a first comparator for comparing the first measured value with a first setpoint, for switching-off the first measurement devices and for switching-on a second measurement device if the first measured value is lower than the first setpoint, for measuring a second measured value for the impedance of the connected electrode and a second comparator for comparing the second measured value with a second setpoint and for switching-on the HF current for the output if the second measured value is lower than the second setpoint.

Abstract: A diagnostic system and a diagnostic method for a technical system are described with which, on the basis of the expert knowledge already necessary for the manual establishment of troubleshooting trees, the establishment of troubleshooting trees can be automated and the performance of guided troubleshooting can be assisted. Provided for this purpose are an acquisition module for systematic acquisition of all relevant status, observation, and/or measured data of the technical system, and a prioritization module for prioritizing all relevant tests, checks, or measurements, in order, in accordance with the weightings of the tests, checks, or measurements as a function of the status, observation, and/or measured data, to establish automatically a troubleshooting tree that can serve as a basis for guided troubleshooting.

Abstract: Embodiments of the invention relate to a three-dimensional dummy object, in particular for functionally testing driver assistance systems in motor vehicles, comprising a head, a skeleton, a trunk, movable anus, and movable legs. The skeleton comprises a trunk skeleton having cavities, to which the arms and legs are articulated, wherein the legs each have a thigh and a lower leg articulated to the thigh, wherein a drive unit and a receiver/control unit are installed in the trunk skeleton, which receiver/control unit receives signals correlating to the relative velocity of the moving dummy object as an input quantity, such that the movement pattern of the thighs and lower legs can be varied according to the relative velocity of the dummy object by means of an installed movement mechanism.

Abstract: A handrail (2) for an escalator or a moving sidewalk is designed such that the same consists only of a handle rail (3a) and a fitted tractive means (9a, 9b) and has guiding surfaces (11h-11n) which are complementary to guiding surfaces (5f-5m) on a top side (7) of a balustrade.

Abstract: A digital IC controller for switch mode power supplies, the IC controller having multiple inputs and multiple outputs as well as a digital interface. The IC controller can be configured using a configuration device in such a way that controller units and filter units preconfigured by the configuration device as well as other functions are selected and parameterized and are transferred to the IC controller using the digital interface.