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Images displayed by projection systems can experience geometric distortions. These distortions can be compensated for by electronic correction, also called image warping. When the image that will be displayed is composed of several input sources, the different image layers have to be corrected independently from each other in order to achieve optimal image quality. A VLSI architecture for independent electronic correction of multiple image layers is proposed.
Optical distortions, resulting from lens characteristics, non-aligned projection and variations in the light source, decrease the quality of projection displays. Knowledge of the sources and characteristics of these distortions allows their electronic correction. The integration of electronic image correction in the display controller IC allows high quality projection without additional components.
Elektronik für Entscheider
(2008)
Die Entwicklung, Produktion und Vermarktung elektronischer Güter ist ein bedeutender Wirtschaftsfaktor, an dem Menschen mit verschiedenen Ausbildungen beteiligt sind. Um Produkte zum richtigen Preis, mit den richtigen Eigenschaften und zum richtigen Zeitpunkt anbieten zu können, müssen die Verantwortlichen eines Projektes miteinander über Projektziele kommunizieren können.
Dieses Buch ist für Manager, Betriebswirte, Juristen, PR-Fachleute und Journalisten geschrieben, aber auch für Informatiker und Ingenieure aus allen Fachgebieten, die sich beruflich mit Produkten der Elektronik beschäftigen. Ihnen wird die Möglichkeit gegeben, sich ein Stück auf das Gebiet der Elektronik zu begeben, um sowohl Aufgaben als auch Sprache und Vorgehensweise von Elektroingenieuren zu verstehen. Ziel ist es dabei nicht, nach dem Lesen dieses Buches eine elektronische Schaltung entwickeln zu können. Im Vordergrund steht vielmehr ein generelles Verständnis für die Zusammenhänge und Grundbegriffe der Elektronik.
An electronic display often has to present information from several sources. This contribution reports about an approach, in which programmable logic (FPGA) synchronises and combines several graphics inputs. The application area is computer graphics, especially rendering of large 3D models, which is a computing intensive task. Therefore, complex scenes are generated on parallel systems and merged to give the requested output image. So far, the transportation of intermediate results is often done by a local area network. However, as this can be a limiting factor, the new approach removes this bottleneck and combines the graphic signals with an FPGA.
Technical knowledge should not be limited to computer scientists and engineers. Also people outside these professions should have a basic understanding of technical concepts, trends and challenges. This paper describes a module of electronics for technical journalists and shows that electronics can be successfully communicated finding a balance between simplification and accuracy.
Qualifikation für gute Lehre
(2010)
Eine von insgesamt sechs Arbeitsgruppen der Jahrestagung des HRK Bologna-Zentrums 2009 beschäftigte sich mit dem Themenbereich "Qualifikation für gute Lehre". Nach zwei Impulsvorträgen diskutierten die Teilnehmer, wie Hochschulangehörige noch stärker als bisher für die Lehre
qualifiziert werden können.
Multimediaprojectors require sophisticated image processing realized on limited board space. An architecture is presented that combines available components and a dedicated display controller for a flexible, compact and cost efficient display electronic. A basic version of the display controller is available as an ASIC, an advanced version has been prototyped as an FPGA.
Low power dissipation is a current topic in digital design, and therefore, it should be covered in a state-of-the-art electrical engineering curriculum. This paper describes how low-power design can be addressed within a digital design course. Doing so would be beneficial for both topics because low-power design is not detached from the systems perspective, and the digital design course would be enriched by references to current challenges and applications. Thus, the presented course should serve as an example of how a course can be developed to also teach students about sustainable engineering.
Reduktion der Verlustleistung integrierter CMOS-Schaltungen durch Anpassung an Signaleigenschaften
(1995)
Power consumption in digital circuits has been a research topic since the 1990s, and has been of significant importance in industry since at least 2000. This contribution investigates power consumption in engineering education by means of a systematic review; to determine the extent to which recent introductory textbooks on digital design address this topic. English and German textbooks that have been published since 2011 are selected, and their tables of contents are examined for the presence of sections or subsections on the topic of power consumption. A total of twenty-four textbooks match the inclusion criteria of our systematic review and, of these books, about 40% cover power dissipation in digital circuits. Thus, a significant number of authors regard power consumption as an important topic even for an introductory text. However, most authors devote only one or two pages to the topic of power dissipation, and 60% of the authors do not have a subsection on it. Therefore, a more thorough coverage of low-power design and implementation choices is often designated as supplementary material or more specialized textbooks are recommended.
The engineering department of the Bonn-Rhine-Sieg University, Germany, introduced a new semester structure, in which three weeks of the semester are reserved for self-learning exercises and project-based learning. They alternate with four weeks of regular lectures, classroom exercises, and hands-on laboratory exercises in a 4-1-4-1-4-1-structure. The structure is used for self-learning exercises in the first study year to overcome problems with academic performance and promote self-learning as a personal qualification. From the second year on, projects are carried out in the three reserved weeks. This allows time for working on challenging problems. This article describes the motivation for introducing the new semester structure, explains the structure itself and the teaching formats employed, and presents experiences with projects and evaluation results.
This paper describes a project carried out at the Bonn-Rhein-Sieg University to teach low-power digital design structures in a laboratory. Low-power design has become one of the most essential constraints in digital systems, especially in portable devices. For this purpose, low-power design is a topic addressed in electrical and computer curricula, but it also requires applications in a laboratory. Therefore, this project focuses on preparing students for current trends in low-power design by examining realistic applications of its basic theories and principles, either hands-on or remotely. The laboratory's experiments use a field programmable gate array (FPGA) as a design platform for implementing the students' digital designs. This contribution reports on our first experiences in teaching low-power design in the lab. This paper focuses on the educational impact on students regarding the following: (1) overall objectives in the laboratory, (2) experimental exercises with low-power techniques, and (3) using educational FPGA boards and the EduPow board. The EduPow board is a developed hands-on board at the Bonn-Rhein-Sieg University that is relatively specific on using various signal image-processing applications to directly observe the power dissipation of a student's digital algorithm. Our assessment of the low-power design lab shows that the requirements and objectives of this project are fairly well satisfied. In addition, students' feedback indicates that using the EduPow board is more attractive and motivational in their work.
This contribution will discuss the architecture and operation of a remote low-power digital design system at the Bonn-Rhine-Sieg University in Germany for teaching the concepts of low-power digital circuit design. Recently, a low-power digital system is an essential technological need due to the high demand for portable devices with less weight. The design of an efficient digital circuit in term of low-power has become a very challenging problem. Therefore, teaching low-power digital design for electrical and computer engineering students is valuable, and it is essential to have practical laboratory exercises available. The laboratory experiments use a field programmable gate array (FPGA) as a design platform for circuit implementation by the students. Remote laboratories offer on-line experiments which are not restricted to a geographical place and allow performing laboratory experiments using real instruments and obtaining real data.
Ausgangspunkt der im Folgenden vorgestellten Semesterstruktur war die Umstellung der vorhandenen Diplomstudiengänge auf den Bachelor-Abschluss. Am Fachbereich werden drei grundständige Studiengänge angeboten; die technischen Studiengänge Elektrotechnik und Maschinenbau sowie der interdisziplinäre Studiengang Technikjournalismus, der den Geistes- und Sozialwissenschaften zuzurechnen ist. Ebenfalls sind duale Studiengänge vorhanden, die an grundständige Studiengänge angelehnt sind.
Technik ist heutzutage allgegenwärtig und beeinflusst Wirtschaft und Gesellschaft. Die Bundesrepublik Deutschland erwirtschaftet als Industriestaat ihr Bruttosozialprodukt zu einem bedeutenden Anteil aus der Entwicklung und Produktion von technischen Gütern. Hieran sind Personen mit unterschiedlicher Ausbildung in verschiedenen Tätigkeiten beteiligt. Ingenieure kümmern sich um die Technik, Betriebswirte um die Finanzen, Juristen um rechtliche Fragen. So zumindest die Theorie.
Influence of Statistical Properties of Video Signals on the Power Dissipation of CMOS Circuits
(1994)
Low-power is an important design goal for digital circuits. Accordingly appropriate development tools are necessary to understand, analyze and optimize power consumption. To stimulate students' interests and motivation, image processing is a well-suited application. An FPGA board was designed, developed and implemented for a lab setup. The purpose of this lab setup is to enable students to evaluate different implementations of an image processing application as a digital circuit and to estimate the consumed power. The paper points out the benefits of a new modular approach to the lab setup and shows how it supports the design of low-power applications and is well-suited to educate students.
An Universitäten und Fachhochschulen ist die Mathematik-Ausbildung eines der Nadelöhre für angehende Ingenieurinnen und Ingenieure. Viele Studierende der Ingenieurwissenschaften scheitern in den ersten Studiensemestern an den Anforderungen der Mathematik. Lehrende, Fach- und Hochschuldidaktiker/innen und zunehmend auch Fachvertretungen und Verbände stellen sich die Frage, was an den Fakultäten und Fachbereichen getan werden kann, damit Studierende ihre mathematischen Fähigkeiten vergrößern und den anspruchsvollen Studienweg zur Ingenieurin oder zum Ingenieur meistern können.
