The maximum distance over which reliable high rate digital transmission over twisted pair lines is possible, can substantially be increased by multiple-duplex transmission, channel coding, and signal shaping. Simple equations are derived to transform SNR-gains into distance gains. Numerical examples are given for a transmission of 2.048 Mbit/s over twisted pairs with lines diameters 0.4 mm and ...

In this paper, I propose a novel analysis of long-distance scrambling constructions in Japanese that is linguistically more adequate than those previously suggested in the literature. At the heart of my proposal is the view, suggested in Yatabe (1993a), that there is a theoretically signi cant parallelism between long-distance scrambling in Japanese and extraposition in languages like English. ...

In recent years, the chaos based cryptographic algorithms have suggested some new and efficient ways to develop secure image encryption techniques. In this paper, we propose a novel method to encrypt a gray image based on Arnold transform and Kent mapping. It is a digital medical image encryption algorithm, dual scrambling that based on chaos of pixel position and pixel values. The results of e...

Each year, the benchmarks for the SMT Competition are drawn from a known pool of benchmarks, the SMT Library. Competing solvers, rather than determine benchmark satisfiability from scratch, could thus cheat by simply looking up the correct answer for each benchmark in the library. To make this form of cheating more difficult, benchmarks in the SMT Competition are scrambled. We demonstrate that ...

This paper proposed a novel image scrambling scheme based on chaos theory and the sorting transformation. The new algorithm calculates the permuting address codes by sorting the chaotic sequence, not like common method by quantizing the chaotic sequence. Therefore, the new scheme does not require knowing the probability density function of the chaotic orbits in advance, thus not only facilitati...

—A multiple-image encryption scheme is proposed by using discrete cosine transform and discrete multiple-parameter fractional Fourier transform (DMPFRFT). Each image is performed by discrete cosine transform and filtering procedure and then multiplexed into a complex signal. After operated by a pixel scrambling, the complex signal is multiplied by random phase mask, and then encrypted into one...

We discuss two constructions (long scrambling and ECM verbs) which challenge most syntactic theories (including traditional TAG approaches) since they seem to require exceptional mechanisms and postulates. We argue that these constructions should in fact be analyzed in a similar manner, namely as involving a verb which selects for a " defective " complement. These complements are defective in t...

The way address sequences and data patterns appear on the outside of a memory may differ from their internal appearance; this effect is referred to as scrambling, which has a large impact on the effectiveness of the used tests. This paper presents an analysis of address and data scrambling for memory chips, at the layout and at the electrical level. A method is presented to determine the data b...

In modern telecommunications, it is often desirable to scramble the contents of the information. This paper presents a particularly e±cient method of analogue signal scrambling. A stationary process is subjected to scrambling by means of a linear periodic time-varying ̄lter. We observe then a cyclostationary process. We demonstrate that perfect reconstruction is possible. In presence of overlapp...