In this paper, a new design of optical channel drop filter based on two- dimensional photonic crystal ring resonators with triangular lattice is proposed. The rods of this structure is silicon with the refractive index 3.46 and the surrounding environment is air with the refractive index of 1.The widest photonic band gap obtained is for filling ratio of r/a = 0.2. The filter’s transmission spec...

This paper is concerned with the question of automated test pattern generation for large synchronous sequential circuits and describes an approach based on Genetic Algorithms suitable for even the largest benchmark circuits, together with a prototype system named GATTO. Its effectiveness (in terms of result quality and CPU time requirements) for circuits previously unmanageable is illustrated. ...

This paper presents an efficient way to compute the approximate time domain signal waveforms for RLCK circuits that have nontree or tree-like structures. The new method is based on a graph based approach to drive transfer function of any linear circuits. Our contribution is the introduction of Hurwitz approximation to the truncated transfer functions to enforce the stability of reduced systems....

One of the approaches used to partition inputs consists in modifying and limiting the input set using an external transcoder. This method is strictly related to output coding. This paper presents an optimal output coding in PAL-based programmable transcoders. The algorithm can be used to implement circuits in PAL-based CPLDs.