Accession Number : AD0640457

Title :   MATRIX SWITCHES AND ERROR CORRECTING CODES FROM BLOCK DESIGNS,

Corporate Author : ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s) : Bahl,Lalit Rai

Report Date : AUG 1966

Pagination or Media Count : 48

Abstract : Methods of obtaining matrix switches from block designs were formulated by Singleton and Neumann. The first part of the report extends Singleton's method for designing unipolar switches to the design of bipolar switches. A new class of low noise switches is obtained by permutation of the winding matrix of noiseless switches and it is shown how these new switches are related to block designs. The latter part of the report is concerned with methods of obtaining error detecting and error correcting codes from block designs. Some of these codes are found to be optimal. (Author)

Descriptors :   (*SWITCHING CIRCUITS, *CORE STORAGE), ERRORS, COMPUTERS, CODING, DESIGN, MATRICES(MATHEMATICS), CORRECTIONS, COMBINATORIAL ANALYSIS, (U)COMBINATORIAL ANALYSIS

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE