This paper proposes a nonlinear oscillator network model for gray-level image segmentation suitable for massively parallel VLSI implementation. The model performs image segmentation in parallel using nonlinear analog dynamics. Because of the limited calculation precision in VLSI implementation, it is important to estimate the calculation precision required for proper operation. By numerical sim...

Abstract − The switched-mode second-order Class E configuration with a generalized load network including the shunt capacitance, series bondwire inductance, finite DC feed inductance and series LC circuit is analytically defined with a set of the exact design equations. Based on these equations, the required voltage and current waveforms and circuit parameters are determined for both general ca...

The winner-take-all (WTA) circuit is a useful computational circuit for signal processing and learning tasks. By adding spatial coupling between pixels, local regions of competition can be delineated. Recently, we described a normalising circuit which enhances Lazzaro’s WTA circuit (1989) only with the addition of a transistor and a global bias to each pixel. This new circuit allows the network...

Generalized MultiProtocol Label Switched (GMPLS) control-plane protocols have been standardized to enable dynamic call-by-call bandwidth sharing in circuit-switched/virtual-circuit (VC) networks. Most GMPLS control-plane implementations within controller cards of circuit/VC switches only support an immediate-request mode of bandwidth sharing because the signaling protocols within the GMPLS cont...

PURPOSE Numerical study of microwave imaging and microwave-induced thermoacoustic imaging utilizes finite difference time domain (FDTD) analysis for simulation of microwave and acoustic interaction with biological tissues, which is time consuming due to complex grid-segmentation and numerous calculations, not straightforward due to no analytical solution and physical explanation, and incompatib...

In decision diagrams (DDs) methods for circuit synthesis, it is possible to directly transfer a DD for a given function f into a network realizing f by the replacement of non-terminal nodes in the DD with the corresponding circuit modules. The chief bottleneck of mapping a DD into a network is the inherent feature that the depth of the network produced, is equal to the number of variables in f....

Virtual circuits can reduce the routing overhead with irregular topologies and provide support for a mix of quality of service (QOS) requirements. Information about the state of the network and expected traffic patterns may be used during circuit establishment to utilize network resources more efficiently than is practical with packet routing. Most virtual circuit schemes are static — once the ...

Virtual circuits can reduce routing overheads with irregular topologies and provide support for a mix of quality of service (QOS) requirements. Information about network loads and traffic patterns may be used during circuit establishment to utilize network resources more efficiently than is practical with packet routing. Most virtual circuit schemes are static — each established virtual circuit...

Integrating optical circuit switches in data-centers is an ongoing research challenge. In recent years, state-of-the-art solutions introduce hybrid packet/circuit architectures for different optical circuit switch technologies, control techniques, and traffic rerouting methods. These solutions are based on separated packet and circuit planes which do not have the ability to utilize an optical c...