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Dive into the research topics where Dirk Olszewski is active.

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Featured researches published by Dirk Olszewski.


internaltional ultrasonics symposium | 2006

3G-3 Optimum Array Configuration for Parametric Ultrasound Loudspeakers Using Standard Emitters

Dirk Olszewski; Klaus Linhard

Ultrasound loudspeakers use parametric arrays to produce highly directional audible sound beams. For this purpose, high power ultrasound emitters with large apertures compared to ultrasound wavelengths are needed. They are commonly built from large film transducers or from small emitter capsules arranged to an array. Instead of using large film emitters, this work focuses on building ultrasound source arrays from cheap standard piezomorphs although common literature disadvises this approach. Therefore, a guideline is given how to nevertheless obtain good results. Since emitter distribution and arrangement within the source array have great influence on ultrasound beam characteristics, the generated audio beam is consequently affected significantly. This work examines different emitter and array configurations to determine optimum setups


conference of the international speech communication association | 2005

Steerable highly directional audio beam loudspeaker.

Dirk Olszewski; Fransiskus Prasetyo; Klaus Linhard


Archive | 2014

Method for performing lane change on actual track of e.g. motor car to neighboring objective track, involves determining presence of lane change adequate transport gap based on location and movement data of vehicles

Dirk Olszewski


conference of the international speech communication association | 2006

Highly directional multi-beam audio loudspeaker.

Dirk Olszewski; Klaus Linhard


conference of the international speech communication association | 2005

Perception experiment combining a parametric loudspeaker and a synthetic talking head

Gunilla Svanfeldt; Dirk Olszewski


Archive | 2014

Method for performing augmented reality representation of detected traffic sign, for vehicle driver assistance system, involves displaying second image data if traffic signs in first image data and default data set are not identical

Lütze, Lars, Dipl.-Ing.; Necker, Marc, Dr.-Ing.; Dirk Olszewski; Xue, Wei, Dipl.-Ing.


Archive | 2014

Method and Device for Augmented Depiction

Christian Gruenler; Wilhelm Wilke; Tobias Tropper; Adam Schatton; Markus Hammori; Lars Luetze; Marc Necker; Dirk Olszewski


Archive | 2014

Method for augmented representation of additional information in image in e.g. vehicle environment, involves changing additional information in dependence on current driving and surrounding situation

Christian Grünler; Wilhelm Wilke; Tobias Tropper; Adam Schatton; Markus Hammori; Qing Rao; Lars Lütze; Marc Necker; Dirk Olszewski


Archive | 2014

Method of detecting and transmitting object of outside vehicle environment, involves generating virtual additional information, and superimposing information in output image during detection and identification of marker of object

Christian Grünler; Necker, Marc, Dr.-Ing.; Dirk Olszewski; Lütze, Lars, Dipl.-Ing.


Archive | 2013

Microphone system for arrangement on three-point restraint system that is arranged at e.g. driver seat of motor car, has electrical interconnection producible between tongue and carrier over seat belt buckle

Linhard, Klaus, Dr.-Ing.; Dirk Olszewski; Martin Schießl; Schnepp, Harald, Dipl.-Ing.

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