George Alexiou

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The low power as a feature of a BIST scheme is a significant target due to quality as well as cost related issues. In this paper we examine the testability of multipliers based on Booth encoding and Wallace tree summation of the partial products and we present a methodology for deriving a low power Built In Self Test (BIST) scheme for them. We propose(More)
The location of a moving person or vehicle in a virtual reality environment is a critical issue. A wireless infrared sensor network capable of estimating the position of a target on a plane and its orientation is presented in this paper. This is actually an extension of the position estimation system that was presented in [1-2] where the target was allowed(More)
Aiming low power dissipation during testing, in this paper we present a methodology for deriving a novel BIST scheme for Modified Booth Multipliers. Reduction of the power dissipation is achieved by: (a) introducing a suitable Test Pattern Generator (TPG) built of a 4-bit binary and a 4-bit Gray counter, (b) properly assigning the TPG outputs to the(More)
A DCVS circuit (fig.2) consists of a load (precharge and buffer circuitry) and a network of differential pairs (fig.1) of n-transistors (the DCVS tree) which realize a given function. The rules for building a DCVS tree can be found in [1]. This paper presents a method for near-optimum synthesis of Differential Cascode Voltage Switch (DCVS) logic circuits(More)
This paper presents the architecture of a system for rapid prototyping of digital circuits that is based on the ALTERA FLEX8000 family reconfigurable set of FPGAs. The interconnection architecture of the system consists of both fixed lines between adjacent FPGAs and shared lines capable of interconnecting more than two devices. The reconfigurable set of(More)
Entity Resolution constitutes a core task for data integration that, due to its quadratic complexity, typically scales to large datasets through blocking methods. These can be configured in two ways. The schema-based configuration relies on schema information in order to select signatures of high distinctiveness and low noise, while the schema-agnostic one(More)