A new methodology for clock-jitter simulation in continuous-time sigma-delta (Σ∆) converters is proposed. This analysis method, based on a previously published method uses a discrete time simulator, more efficient than an analog simulator. Only one sample per output sample is required, which reduces simulation times to a few seconds, even for large simulations. Results will be compared to those...

The importance of Linked Open Data (LOD) has not yet been recognized by ordinary people. As the effort to involve them into LOD activity, we have developed Yokohama Art Spot, a mash-up application on local museum information to demonstrate the value of information sharing and reuse where data from different communities are used together. Thanks to the flexibility of LOD, it provides useful view...

The aim of this article is to present “a closer look” at the management theory of “Six Sigma Quality” and to contrast it with the management theory of Dr. W. Edwards Deming. This paper will offer a perspective that the critical differences between “Six Sigma Quality” and the teachings of Dr. Deming are not technical, but rather philosophical in nature. This explanation briefly compares the tech...

Manifold models in data analysis and signal processing have become more prominent recent years. In this paper, we will look at one of the main tasks modern processing, namely, analog-to-digital (A/D) conversion connection with a simple manifold model — circle. We focus on Sigma-Delta modulation which is popular method for A/D bandlimited signals that employs coarse quantization coupled oversamp...

Sigma delta modulation M has become a widespread method of analogue to digital conversion however its operation has not been completely de ned The majority of the analysis carried out on the circuit has been from a linear standpoint with non linear analysis hinting at hidden complexities in the modulator s operation The sigma delta modulator itself is a non linear system consisting as it does o...

While Σ∆M techniques [l, 2] are applied widely in analog conversion sub-systems, both analog-to-digital (ADC) and digital-to-analog (DAC) converters. these methods have enjoyed much less exposure in the broader application domain, where flexible and configurable solutions, traditionally supplied via a software DSP (soft-DSP), are required. And this limited level of exposure is easy to understan...

A CMOS image sensor ADC using delta-sigma modulation is presented and discussed. Experimental results from a test chip are presented. The experimental results show that the proposed ADC has several benefits over the use of pipeline ADCs including noise reduction, fast design times, ease with which to maximize ADC output based on a varying input range, and simple symmetric analog routing for lar...

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