• Journal of information and communication convergence engineering
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• v.8 no.4
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• pp.421-426
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• 2010

This paper presents a method of design the counter using sequential system based on synchronous techniques. For the design the counter, first of all, we derive switching algebras and their operations. Also, we obtain the next-state functions, flip-flop excitations and their input functions from the flip-flop. Then, we propose the algorithm which is a method of implementation of the synchronous sequential digital logic circuits. Finally, we apply proposed the sequential logic based on synchronous techniques to counter.

• Journal of the Korean Institute of Telematics and Electronics
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• v.12 no.2
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• pp.24-27
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• 1975

A Synthesis method for multiple-input change transition-sensitive asynchronous sequential circuits is proposed. Both internal states and output states are synthesized from primitive flow tables. It is Btown that cur realization is faster than that of Chuang's. It is pointed out that Chuang's realization of output states contains malfunctions. In this paper, output stales are easily realized from primitive flaw table by the method of controlled excitation.