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A novel microelectronic "pill" has been developed for in situ studies of the gastro-intestinal tract, combining microsensors and integrated circuits with system-level integration technology. The measurement parameters include real-time remote recording of temperature, pH, conductivity, and dissolved oxygen. The unit comprises an outer biocompatible capsule(More)
Introduction The Integrated Diagnostics for Environmental and Analytical Systems (IDEAS) research work combines the System on Chip (SoC) and Lab on Chip (LoC) methodologies in order to design a capsule capable of traversing the gastrointestinal tract, taking advantage of the natural peristaltic motion of the gut. Such a device has been shown to be capable(More)
This paper presents our work toward the integration of a multisensor microsystem with wireless communication, using system-on-chip (SoC) methodology. Four different forms of microelectronic sensors have been fabricated on two separate 5 5 mm silicon chips measuring pH, conductivity, dissolved oxygen concentration, and temperature. The sensors are integrated(More)
This work argues that it should be possible to combine pulse-based VLSI techniques with the relatively simple training rules of the Helmholtz Machine stochastic neural architecture, in order to build an analogue probabilistic hardware model of the latter. An overview of the necessary components is presented, as well as a design for a pulsewidth modulation(More)
encoder and a frequency shift keying (FSK) RF transmitter. Many of the system blocks are from preRecent years have seen the rapid development of existing libraries, or have been written and imported in an microsensor technology, system on chip design, wireless intellectual property (IP) block form, thus the design technology and ubiquitous computing. When(More)
This paper presents an analysis of the noise propagated across the substrate and the electromagnetic contamination in a control chip for a wireless Lab-in-a-Pill. This chip integrates analogue, digital and radio frequency circuits monolithically to reduce the physical size, power consumption and packaging cost of the capsule. Several approaches to minimise(More)
Developments in system-on<hip and wireless technologies have led to complex electronic systems to he miniaturized to size of ingestible capsule and implantable microsystems. Inevitably such miniaturized complex systems impose some constraints on the case of an ingestible diagnostic capsule. It is desirable that system be wireless, programmable, and(More)
Probabilistic computing forms a relatively new computational style, of significant practical interest because stochastic behaviour is common and must be taken into accountin in biological and other real-world processes. We examine a particular stochastic ANN architecture, the Helmholtz Machine, investigating its characteristics, with particular respect to(More)
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