Patent · US Expired

Method and apparatus for fuzzy knowledge reasoning

US5471559A · kind A · utility

5Cited by
10References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 27, 1990
Grant dateNov 28, 1995
Priority date
Expiry dateMar 27, 2010

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S706/90
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Fuzzy knowledge stored in a knowledge base is written into a memory. When fuzzy reasoning is executed by a fuzzy reasoning unit based on the content of the memory, a control unit in a central processing unit may modify the knowledge base in the memory. The control unit is programmed such that after it has modified the knowledge base in the memory, it causes a reasoning execution unit to repeatedly and automatically execute predetermined fuzzy reasoning by the number of times corresponding to the number of input data. The control unit also modifies the knowledge base and causes the reasoning execution unit to execute the fuzzy reasoning. By reading out the knowledge base in the memory, it is possible to verify the validity of the fuzzy knowledge without executing the simulation of the fuzzy reasoning. The fuzzy reasoning course of the reasoning execution unit may be stored in another memory. In this case, the control unit may display the fuzzy reasoning result on a display device in an expression easily understandable by a user, based on the content of the other memory.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.