- https://doi.org/10.1002/ecjc.4430741202
A fuzzy selection method for generated equivalent logic circuits
- Jan 1, 1991
- Electronics and Communications in Japan (Part III: Fundamental Electronic Science)
- Satoshi Wakabayashi +2 more
Abstract In the design of logic circuits, it is not always true that the circuit constructed by the designer is the optimal one. From such a viewpoint, this paper proposes a method in which the first designed circuit is expanded backwardly, i.e., from the output back to the input, and more than one equivalent circuit of the same function is resynthesized and the one best satisfying the requirements is determined and adopted.In the proposed method, a fuzzy reasoning is introduced in the decision process. In this scheme, such requirements as the delay time, power consumption and the chip area are handled by the fuzzy reasoning. A selectability index known as “selection criterion value” is given to each generated circuit, and the objective logic circuit is selected according to this index.Such requirements as delay, etc., have different units and are often in a trade‐off relation. Therefore, these requirements are represented as relative values and are considered as circuit selection parameters in the fuzzy reasoning. Such parameterization enables easy understanding of the features of each circuit. It is easy also to decide which of the parameters of the trade‐off relation is to be emphasized in the selection process.
- # Fuzzy Reasoning
- # Design Of Logic Circuits
- # Logic Circuits
- # Chip Area
- # Equivalent Circuit
- # Relative Values
- # Selection Process
- # Delay Time
- # Power Consumption
- # Decision Process
