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Recent faster and more frequent train service at Tokaido Shinkansen makes it difficult to stabilize the feeding voltage only by compensating reactive power. Therefore, the active power compensation between two phases has been introduced for further stabilization of the voltage, and the converter control strategy called ??fixed power-factor method?? was applied in the commercial operation that started...
With technology scaling, vulnerability to soft errors in random logic is increasing. There is a need for on-line error detection and protection for logic gates even at sea level. The error checker is the key element for an on-line detection mechanism. We compare three different checkers for error detection from the point of view of area, power and false error detection rates. We find that the double...
In this paper, we study bandwidth management of a wireless/optical based access/metro network in support of voice and data services. For voice services, we use a finite state Markov Chain to estimate the blocking probability of voice circuits over an Adaptive modulation and coding wireless channel, as a function of the channel parameters. For data services, we evaluate a rate matching and a buffer...
We assume that long wires represent large capacitive loads, and investigate the effect on the area of a VLSI layout when drivers are introduced along many long wires in the layout. We present a layout for which the introduction of drivers along long wires squares the area of the layout; we show, however, that the increase in area is never greater than this, if the driver can be laid out in a square...
A speed independent circuit has the property that the relative speed of operation of the various logic elements does not affect the over-all behavior of the circuit. Such circuits have properties which are of particular importance in the design of reliable asynchronous circuits. An Arithmetic Control for a digital computer is one type of logic which can profitably use these characteristics. The design...
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