Robert Schwann

Learn More
In today’s teaching and learning approaches for first-semester students, practical courses more and more often complement traditional theoretical lectures. This practical element allows an early insight into the real world of engineering, augments student motivation, and enables students to acquire soft skills early. This paper describes a new freshman(More)
A parameterizable architecture of a low power FIR interpolation filter with reconfigurable coefficient sets for timing phase alteration is presented. For the application in a handheld ultrasound scanner, the filter has been optimized for lowest power dissipation on all levels of CMOS design from system down to physical layout level. The architecture is well(More)
First Steps into Practical Engineering for Freshman Students Using MATLAB and LEGO Mindstorms Robots Alexander Behrens, Linus Atorf, Robert Schwann, Johannes Ballé, Thomas Herold and Aulis Telle 1Institute of Imaging and Computer Vision, 2Chair of Electrical Engineering and Computer Systems, 3Chair and Institute of Communications Engineering, 4Institute of(More)
AIM The measurement of the length of the cervix is just a method of routine, but the analysis of the grey-scale texture of the cervix represents a method poorly evaluated to date which may have the scope of improving the prediction of premature birth. Before it can be used for clinical purposes, the method must be standardised. METHODS 66 patients were(More)
The digital part of a low power single chip digital beamformer for use in low-cost handheld ultrasound imaging systems is presented. To ensure lowest power dissipation for battery operated systems, a quantitative optimization strategy from system down to physical layout level was employed. A cascadable test chip comprising a single processing channel was(More)
To improve the directivity of a receive beamformer, the scalar apodization weigths are replaced by filters. For a frequency dependent apodization without changing the delay scheme of the dynamic receive beamformer, symmetric FIR filters are used. Different image quality measures are investigated and discussed that allow to quantify the dynamic range(More)
Besides lectures of theoretical foundations, contemporary teaching and learning concepts for first semester students consider more and more practically motivated courses. In this context, a new first-year student introduction course in practical engineering is established in the first semester curriculum of Electrical Engineering at RWTH Aachen University,(More)
In today's teaching and learning approaches for first-semester students, practical courses more and more often complement traditional theoretical lectures. This practical element allows an early insight into the real world of engineering, augments student motivation, and enables students to acquire soft skills early. This paper describes a new freshman(More)
  • 1