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An algorithm for switchbox routing, called PACKER, is presented. In an initial phase, the connectivity of each net is established in a fast way without taking the other nets into account. In general this will give rise to conflicts (short circuits). In the second stage the conflicts are removed iteratively using Connectivity preserving local transformations… (More)

251 fits are possible if the Gaussians are less constrained, that is, if more of their characteristics (amplitude, position, and width) are used. This is demonstrated in Table I. For the first example, the position of the Gaussians was held at the extrema of sin(2t), as done in [1], but the remaining parameters were adjusted to minimize the squared error.… (More)

Abatract PACKER is an algorithm for switchbox routing, based on a novel approach. In an initial phase, the connectivity of each net is established without taking the other nets into account. In general this will give rise to conflicts (short circuits). In the second stage the conflicts are removed iteratively using connectivity p e e-ing local… (More)

- J A K S Jayasinghe, F Moelaert El-Hadidy, G Karagiannis, Otto E Herrmann, J Smit
- 2004

Simultaneous improvement of interaction speed and image quality of raster graphics systems is an important topic in computer graphics research. Due to huge processing power requirements, realistic shading methods (like Phong shading) have been used only in noninter-active applications whereas less realistic shading methods (like Constant shading) have been… (More)

Based on a simpliied nonlinear lumped element model of the electrodynamic loudspeaker in either a closed or a vented cabinet, a new nonlinear controller is derived, simulated and implemented on a DSP. The Volterra series expansion , a well known functional expansion to model nonlinear systems, is used to estimate the nonlinear parameters from distortion… (More)

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