Manfred Lang
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View article: Towards Multimodal Error Management: Experimental Evaluation of User Strategies in Event of Faulty Application Behavior in Automotive Environments
Towards Multimodal Error Management: Experimental Evaluation of User Strategies in Event of Faulty Application Behavior in Automotive Environments Open
In this work, we present the results of a study analyzing the reactions of subjects on simulated errors of a dedicated in-car interface for controlling infotainment and communication services. The test persons could operate the system, usi…
View article: InP DHBT-based IC technology for high-speed data communications
InP DHBT-based IC technology for high-speed data communications Open
In this paper, we report the achieved performance of devices and integrated circuits (ICs) using a manufacturable InP DHBT-based technology.High speed MBE grown InGaAs/InP DHBTs with an effective emitter junction area of 4.8 µm2 exhibited …
View article: Integrated Circuits Based on 300 GHz fT Metamorphic HEMT Technology for Millimeter-Wave and Mixed-Signal Applications
Integrated Circuits Based on 300 GHz fT Metamorphic HEMT Technology for Millimeter-Wave and Mixed-Signal Applications Open
Advanced circuits based on metamorphic HEMT (MHEMT)technologies on 4 ”GaAs substrates for both millimeter-wave,and mixed- signal applications are presented.Extrinsic cut-off frequencies of ft =293 GHz and fmax =337 GHz were achieved for a …
View article: Experimental evaluation of user errors at the skill-based level in an automative environment
Experimental evaluation of user errors at the skill-based level in an automative environment Open
Concentrating on the lowest performance level of Reason's error model, in this work we evaluated the potential of user errors in an automative environment. Thereby the test subjects had to operate various in-car devices while primarily ful…
View article: A new technique for adjusting distraction moments in multitasking non-field usability tests
A new technique for adjusting distraction moments in multitasking non-field usability tests Open
Evaluating errors that result from user interactions with incar applications, it has to be considered that the user is permanently involved with driving the car.Reproducing this driving workload in non-field usability tests, it showed that…
View article: Using multimodal interaction to navigate in arbitrary virtual VRML worlds
Using multimodal interaction to navigate in arbitrary virtual VRML worlds Open
In this paper we present a multimodal interface for navigating in arbitrary virtual VRML worlds. Conventional haptic devices like keyboard, mouse, joystick and touchscreen can freely be combined with special Virtual-Reality hardware like s…
View article: 20 Gb/s monolithic integrated clock recovery and data decision
20 Gb/s monolithic integrated clock recovery and data decision Open
An IC for 20 Gb/s clock recovery and data decision was realised using 0.3 m gate-length QW-HEMTs. A narrow-band regenerative frequency divider with on-chip resonator filters is used for the clock recovery. The parallel processing concept i…
View article: 10-20 Gbit/s GaAs/AlGaAs HEMT ICs for high speed data links
10-20 Gbit/s GaAs/AlGaAs HEMT ICs for high speed data links Open
A set of ICs has been developed for high-speed data links at data rates above 10 Gbit/s. A recessed gate process for double pulse doped quantum well transistors has been used with e-beam written 0.3- μm gates. A 4 bit multiplexer and a las…
View article: 11.6 Gbps 1:4 demultiplexer using double pulse doped quantum well GaAs/AlGaAs transistors
11.6 Gbps 1:4 demultiplexer using double pulse doped quantum well GaAs/AlGaAs transistors Open
An ultrahigh speed 4 bit demultiplexer circuit has been developed and fabricated using a recessed gate process for enhancement and depletion transistors with 0.3 mu m gate length. First results show a data rate of 11.6 Gbit/s and a power c…