This paper introduces the novel design of a low-voltage low-power voltage rectifier based on bulk-driven (BD) winner-take-all (WTA) circuit. The proposed circuit is able to work as a halfor full-wave rectifier and it is specifically designed for battery-powered implantable and wearable medical devices. The main attractive features of the proposed circuit are topology simplicity, minimal number ...

Neuromorphic systems make use of a set of specific functions that exhibit specific or unconventional behavior. These include winner-take-all (WTA), weighted average, and thresholding functions. These can be integrated using various design techniques, including analog, digital, standard, and subthreshold realizations. In this paper, we present a brief survey of charge-based realizations of sever...

The CRISPR (clustered regularly interspaced short palindromic repeats) mechanism allows bacteria to adaptively defend against phages by acquiring short genomic sequences (spacers) that target specific sequences in the viral genome. We propose a population dynamical model where immunity can be both acquired and lost. The model predicts regimes where bacterial and phage populations can co-exist, ...

How a moving input stimulus becomes a direction percept via processing in the human visual system is a complex and unresolved issue which involves numerous areas of the brain. One of the principal issues in determining direction percept entails decoding of the numerous signals are honing these signals down into one percept. More specifically, how do numerous orientation, disparity, and speed si...

In this work, we present motion detection algorithms that are based not only on biological models but also on the computational properties of motion perception. First, we describe monolithic implementations of hysteretic winner-take-all and nonlinear differentiator based algorithms. Second, we explain multi-chip implementations of biomimetic intensity-based models, namely Adelson-Bergen model. ...

This paper is concerned with the phenomenon of winner-take-all competition. In this paper, we propose a continuous-time dynamic model, which is described by an ordinary differential equation and is able to produce the winner-take-all competition by taking advantage of selective positive–negative feedback. The global convergence is proven analytically and the convergence rate is also discussed. ...

In this paper, analysis of the information content of discretely ring neurons in unsupervised neural networks is presented, where information is measured according to the network's ability to reconstruct its input from its output with minimum mean square Euclidean error. It is shown how this type of network can self-organise into multiple winner-take-all subnetworks, each of which tackles only ...

Evidences show that an increase in the level of average income does not necessarily lead to a corresponding increase in the average level of happiness. This phenomenon has been explained by applying theories of relative-consumption and positional goods. This paper suggests an additional explanation. It is argued that due to the nature of technological progress, people increasingly choose to wor...

The major problem that has prevented practical application of analog neuro-LSIs has been poor accuracy due to fluctuating analog device characteristics inherent in each device as a result of manufacturing. This paper proposes a dynamic control architecture that allows analog silicon neural networks to compensate for the fluctuating device characteristics and adapt to a change in input DC level....

WTA (Winner Take All) hashing has been successfully applied in many large scale vision applications. This hashing scheme was tailored to take advantage of the comparative reasoning (or order based information), which showed significant accuracy improvements. In this paper, we identify a subtle issue with WTA, which grows with the sparsity of the datasets. This issue limits the discriminative po...