ANALYSIS AND SYNTHESIS OF SEQUENTIAL SWITCHING CIRCUITS
POLYTECHNIC INST OF BROOKLYN NY MICROWAVE RESEARCH INST
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Two of the more difficult problems in the synthesis of sequential switching circuits. The problem of simplifying the flow tables of completely specified switching functions, and the problem of assigning the secondary variables to the different states of the circuit are discussed. A graphical method is developed for the reduction of the number of states in the sequential machine. The method simplifies the techniques of finding the closed sets of compatibles which form the new set of states of the reduced machine. Further development of existing methods for the secondary assignment for both synchronous and asynchronous sequential machines is given. A discussion is also given on the decomposition of sequential machines and its relation to the secondary assignment.
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