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CMOS Monolithic Active Pixel Sensors (MAPS) technology allows integrating very small sensing elements with a pixel pitch of ∼ 10 μm together with analogue and digital signal processing circuits into a monolithic chip, which may be thinned down to a thickness of ∼ 50 μm. These features make MAPS an interesting technology for a broad range of applications in charged particle tracking. Intense R&D...
This paper presents an infrastructure for providing ATC services over the World Wide Web as being in development and implementation in the DFS Deutsche Flugsicherung Air Navigation Service. A prototypical implementation is presented including the validation regarding performance and safety issues.
This paper identifies requirements for querying and accessing context information in mobile and pervasive computing environments. Furthermore it studies existing query languages showing that they satisfy only a subset of these requirements or cover some of them only to a limited extent. A new context query language is presented to overcome these shortcomings, improving the state of the art in several...
Previously proposed methods for fast channel change include use special codec features (e.g., switching frames or adaptive playback) and approaches based on special content delivery infrastructure (e.g., edge servers). However, to have a basis of comparison, we have to answer the question: what is actually achievable by streaming with standard encoding and transport without additional infrastructure...
Emerging IPTV services are challenging the IP based delivery infrastructure by imposing strong scalability, robustness, and synchronization requirements on multimedia transport. The current best practice is to use the transport and systems mechanism from the broadcast world like the MPEG2 transport stream (MP2T) [1]. The rationale behind this is to rely on well established concepts from broadcasting...
The most accurate way to describe carrier transport is to solve the Boltzmann transport equation (BTE), for instance with the very time consuming Monte-Carlo (MC) technique. On an engineering level however macroscopic transport models are more efficient. Multiplication of the BTE with weight functions, approximation of the scattering integral with a macroscopic relaxation time and integration over...
For some MEMS based chemical sensors, it is desirable to incorporate 3D features such as enclosed reaction chambers and both chemical & electrical I/O. Like most other MEMS devices, it is preferential to create all of these features at the wafer level. Although wafer level integration has the potential to simplify back-end & packaging requirements, improve device performance, and reduce size...
Enhancing robotic1,2 surface mobility systems are a fundamental Mars Exploration Program goal because many surface-investigation goals require traversing significant distances in widely varying terrain conditions. SILVRCLAW (Stowable, Inflatable, Large, Vectran, Rigidizable, Cold-resistant, Lightweight, All-terrain Wheel) is an inflatable, rigidizable wheel technology that enables compact robotic...
We present the living-room, an interactive application for browsing, organizing and sharing digital photos. The application runs in an instrumented environment on a wall display and an interactive tabletop, which is meant to simulate a future living room. We discuss the design rationale as well as the interaction techniques and the technical implementation. To asses how well our design goals were...
An evaluation of commercial off-the-shelf speaker verification systems is reported. The performance of several systems, which were offered for testing, is analyzed against criteria designed to identify strengths and weaknesses that would determine their suitability for the use by government service agencies. Results for three text-dependent systems by Nuance, Persay and Scansoft are presented in this...
We present a comparison of large area pn-junction thermoelectric generators and classical thermoelectric modules. In contrast to conventional thermocouples, the thermal generation of carriers is explicitly used within the new device structures. The gradient of the pn-junction's built-in potential causes the separation of the thermally generated carriers. For the application of waste heat recovery,...
WSDL-S and OWL-S are semantic Web services languages that both aim at enriching WSDL with semantic annotation. In this paper, we analyze the similarities and differences between the two languages aiming at showing how OWL-S annotations could take advantage of WSDL-S annotations. In the process, we discover and analyze representational trade-offs between the two languages
In this paper we present the details of the multilevel liveness verification (MLLV) framework proposed for realizing a secure face-voice biometric authentication system that can thwart different types of audio and video replay attacks. The proposed MLLV framework based on novel feature extraction and multimodal fusion approaches, uncovers the static and dynamic relationship between voice and face...
A new method for thermoelectric power generation using large area pn-junctions is presented [Span, et al., 2005]. Normally, thermal generation of electron-hole pairs is avoided because of the deteriorating effects of the minority carriers on the efficiency in classical thermocouples. A temperature gradient applied along the pn-junction causes a flux of carriers from hot to cold due to the Seebeck...
Enhanced robotic surface exploration is a fundamental MEPAT (Mars Exploration Program Advanced Technologies) goal for Mars exploration technology development because many surface-investigation goals require traversing significant distances in widely varying terrain conditions. SILVRCLAW (stowable, inflatable, large, vectran, rigidizable, cold-resistant, lightweight, all-terrain wheel) is an inflatable,...
At the 90-nm, leakage currents bring standby power to an unacceptable level and circuit level techniques become mandatory. However applying these techniques must be robust and practical. In this paper we focus not only on leakage reduction solutions but also on their deployment as a worldwide infrastructure as the added-value resides not only in the techniques themselves but also in the way they are...
By using the low thermal conductivity of SiGe to increase the average temperature along the pn-junction of the structure, the efficiency and power output of our thermoelectric elements can be increased dramatically. Further improvement can be achieved by using optimized graded Ge content to fully adapt the temperature distribution to our needs
Discussion and development of protocols for a nodal market has been underway in the Electric Reliability Council of Texas (ERCOT) region since the summer of 2003. From September 2003 through Summer 2005, ERCOT Market Participants drafted a set of nodal protocols. ERCOT filed these protocols, and updates, on behalf of Market Participants in March 2005, and September 2005, respectively. This presentation...
The new generation of multimedia-application processors requires a drastic leakage reduction to bring the standby current to 50/spl mu/A. An efficient set of leakage reduction techniques, including power gating, memory retention, voltage scaling, and dual V/sub t/, is employed on a 50M transistor, 80mm/sup 2/ IC, fabricated in a 90nm CMOS technology, resulting in a 40/spl times/ leakage reduction.
There are many noise sources for images. Images are, in many cases, degraded even before they are encoded. Previously, we focused on Poisson noise (Huang, X. et al., IEEE Int. Conf. on Multimedia and Expo, vol.1, p.593, 2003). Unlike additive Gaussian noise, Poisson noise is signal-dependent and separating signal from noise is a difficult task. A wavelet-based maximum likelihood method for a Bayesian...
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