This work is dedicated to concurrenterrordetection (CED) systems synthesis together with a complete concurrent self-checking structure based on the Boolean complement method. The authors share the view of the CED sy...
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ISBN:
(纸本)9781509056484
This work is dedicated to concurrenterrordetection (CED) systems synthesis together with a complete concurrent self-checking structure based on the Boolean complement method. The authors share the view of the CED systems with a complete self-checking structure designed by the Boolean complement method and based on the constant-weight code "2-out-of-4". Within those systems logical accessories are installed for the purpose of avoiding the choice of operating vectors value which shall simplify the CED systems design process. The minimum number of operating vectors to be defined per the CED systems which should guarantee the entire variety of testing combination per the Boolean complement block as well as per the testing code "2-out-of-4".
Proposed were new structures for concurrent error detection systems of the combinatorial logic circuits based on the codes with summation of the weighted transitions and their modifications. They were compared with th...
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Proposed were new structures for concurrent error detection systems of the combinatorial logic circuits based on the codes with summation of the weighted transitions and their modifications. They were compared with the traditional systems of duplication and check by the Berger code. The structure based on the code with summation of the weighted transitions allowed one to improve the index of realization complexity as compared with the duplication system by 4 % on the average. The structure obtained by modifying the code with summation of the weighted transitions into the optimal code enables one to improve this index almost twice as much as compared with the system of checking by the Berger code. At that, this system has a better index of errordetection. In certain cases, the structure of the concurrent error detection system on the basis of the optimal code is superior in complexity to the system of parity check.
A fundamentally new approach to building a code with summation of on-data bits based on the selection and separate check of subsets of bits of the data vector is presented. The properties of the proposed code are anal...
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A fundamentally new approach to building a code with summation of on-data bits based on the selection and separate check of subsets of bits of the data vector is presented. The properties of the proposed code are analyzed in comparison with the classic and modified Berger codes. The advantages and disadvantages of new codes with summation of on-data bits are noted. The basic properties of the proposed codes with summation that should be taken into account in solving problems of technical diagnostics are established. The results of experimental applications of the developed codes to the organization of concurrent error detection systems of combinational benchmarks from LGSynt'89 are given.
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