--Neuromorphic systems have been primarily implemented using analog sub-threshold CMOS circuits primarily because the physics of subthreshold operation and biological signal processing are identical. The effects of attempting to model biology accurately, coupled with the slow dynamics of sub-threshold MOS circuits, have prevented these systems from capitalizing on the main benefit of silicon wh...

This essay describes the experimental observation as well as numerical simulation and theory of synchronized chaos in systems of coupled oscillators. This work explores examples of this phenomenon in coupled electronic circuits and optoelectronic systems, as well as possible applications to secure communication.

The last decades, the synchronization between coupled chaotic circuits has attracted the interest of the research community because it is a rich and multi-disciplinary phenomenon with broad range applications, such as in broadband communication systems, in secure communications and in cryptography. For this reason many coupling schemes between identical nonlinear circuits with chaotic behavior ...

In this paper, a non-linear bi-directional coupling of two Chua’s circuits is presented. The coupling is obtained by using polynomial functions that are symmetric with respect to the state variables of the two Chua’s circuits. Both a transverse and a tangent system are studied to ensure a global validity of the results in the state space. First, it is shown that the transverse system is an auto...

WREN d-e signals are to be amplified, the usual approach is to use a direct-coupled circuit. The difficulty of maintaining sufficiently low drift in a direct-coupled configu ration led to the development of chopper and chopper-stabilized circuits, where a mechanical chopper reduces drift to low values. Unfortunately, other shortcomings arise, and in most applications the direct-coupled d-e ampl...

in this paper, we study the existence of coupled coincidence andcoupled common fixed points for single-valued and fuzzy mappingsunder a contractive condition in metric space. presented theoremsextend and improve the main results of abbas and$acute{c}$iri$acute{c}$ {itshape et al.} [m. abbas, l.$acute{c}$iri$acute{c}$, {itshape et al.}, coupled coincidenceand common fixed point theorems for hybr...

Studies on spatio-temporal phenomena observed from coupled chaotic networks, namely coupled systems of many chaotic cells, are classified into two categories; namely discrete time systems and continuous time systems. For discrete time systems Kaneko’s coupled map lattice is the most interesting and well-studied system [l]. He discovered various nonlinear spatiotemporal chaotic phenomena such as...

Automatic debugging of sequential circuits has been considered a practically intractable task due to the excessive memory and run-time requirements associated with tackling industrial-size problems. This paper proposes a novel Quantified Boolean Formula (QBF) based approach for fault diagnosis in sequential circuits. A performance-driven succinct QBF encoding of the problem, coupled with the tr...

Two high performance level restoration circuits are proposed, which outperform the existing level restoration circuits with cross-coupled PMOS, in terms of power dissipation and delay. The first configuration employs a back-bias scheme in order to eliminate the stand-by leakage caused by the low-swing input. The second one adopts a bootstrapping technique, in order to restore the low swing sign...