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Dive into the research topics where Dirk Wendel is active.

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Featured researches published by Dirk Wendel.


international conference on consumer electronics | 2001

System-on-silicon solution for high quality consumer video processing-the next generation

Markus Schu; Dirk Wendel; Christian Tuschen; Marko Hahn; Ulrich Langenkamp

This paper presents the next generation of a highly integrated low cost single-chip video processing system-on-chip with outstanding feature content and performance. The IC/sup 3/ unites the complete processing chain between tuner output (CVBS) and RGB processing. It comprises a perfected motion adaptive algorithm for high quality de-interlacing and up-conversion including a special cinematic source processing, picture-in-picture, split screen and manifold picture manipulation and improvement capabilities are implemented as well as color decoding and all necessary A/D and D/A conversions. All field memories are realized on-chip with YUV4:2:2 color representation up to SVGA resolution. Manufactured in a 0.18 /spl mu/m copper eDRAM technology, the IC meets economical demands with increased functionality.


international conference on consumer electronics | 1999

High performance picture-in-picture (PIP) IC using embedded DRAM technology

Maik Brett; Dirk Wendel

In the paper the next generation of a low cost, high performance single-chip picture-in-picture IC is presented. This chip will be produced in a 0.35 /spl mu/m eDRAM technology and integrates a digital multistandard color decoder, embedded DRAM, A/D and D/A converter and a data slicer for caption services. The paper deals with the digital video signal processing for color decoding with asynchronous sampling and the compensation of the skew. A new algorithm for a jointline-free true frame display is developed. The chip allows a smooth scaling from 1/81 to 1/4 of full screen picture size and implements a data compression algorithm for split-screen modes.


international conference on consumer electronics | 2000

System-on-silicon for 100 Hz TV: new concepts qualified for highest integration

Hartmut Beintken; Dirk Wendel; Marko Hahn; Giinter Scheffler; Heinz Bonnenberg

This paper presents the next generation of a low cost, high performance single-chip upconverter solution for flicker-free TV. This chip has been designed in a 0.18 /spl mu/m copper eDRAM technology. All processing stages between tuner output (CVBS) and RGB processor input are now integrated, requiring only a few external components. Applying a newly developed digital clock concept all clocks both of locked and unlocked types are derived from the same source. This increases flexibility and reliability by saving analog PLLs. The authors also describe the data processing with respect to the new concept.


signal processing systems | 2000

Standardized video interface eases design process and reduces time-to-market

Marko Hahn; Maik Brett; Dirk Wendel; Markus Schu; Günter Scheffler

Video ICs are composed of several signal processing units that perform different tasks such as filtering, changing the sampling rate or mixing different data streams. In most cases these blocks are connected to form a processing chain, where one block receives signals from the preceding one. To develop an IC more effectively, it is desired to reuse the known cores. The design of several video ICs in the past resulted in a lot of cores being available. The problem, however, is that all blocks are defined by their own timings which rarely fit into new surroundings. Therefore the adaptation, or even the revision of one or more blocks may become necessary. The paper describes a general approach to unify the interfaces of all video processing cores, so that a core-based design is simplified. A newly developed 100 Hz upconversion IC is presented whose processing blocks are equipped with the interface described.


international conference on consumer electronics | 2006

Dual-channel video-graphics-controller for HDTV flat-panel display TV

Markus Schu; Dirk Wendel; Marko Hahn; Ulrich Niedermeier; Ulrich Langenkamp

This paper presents a high integrated high-performance video processing system-on-chip for HDTV displays. The IC unites the complete processing chain for dual-channel display and can be directly connected to a PDP or LCD by LVDS or RGB resp. It comprises a 3D-comb filter, two color-decoders, two channel motion adaptive de-interlacer with a new algorithm to eliminate staircase effects, as well as scaling, picture-improvement and frame-rate conversion processing units. A powerful 32 bit CPU controls internal and external tasks and a high-resolution pixel-graphic is generated for on-screen menus and teletext display


Archive | 2002

Apparatus and method for slope-enhancement of signal transitions in television pictures

Peter Rieder; Marko Hahn; Günter Scheffler; Dirk Wendel


Archive | 2001

Method and apparatus for measuring the noise contained in a picture

Marko Hahn; Dirk Wendel; Ulrich Niedermeier


Archive | 1999

Circuit for controlling luminance signal amplitude

Xiaoning Nie; Dirk Wendel; Maik Brett


Archive | 2005

Method of scaling a graphic character

Dirk Wendel; Ulrich Langenkamp; Marko Hahn


Archive | 2001

Method for changing the channel of a television set, and corresponding television set

Günter Scheffler; Markus Schu; Dirk Wendel

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