Arithmetic and logic unit, storage unit and computer system for

Details Arithmetic and logic unit, storage unit and computer system for Arithmetic and logic unit, storage unit and computer system for

1993-06-21

1995-07-04

MacDonald, Allen R.

395 51, 395 61, 395900, G06F 944

Patent

active

054308283

ABSTRACT:
A device having a calculation part and memory part which can directly deal with a word of a fuzzy set data type, that is, which can deal with a combination of an element and a grade corresponding to the element, to thereby obtain high speed general calculating ability for fuzzy sets. The calculation part has a grade operating unit and an element operating unit, and the data is input and output in a word type such that it has an element field and a grade field which are processed by the corresponding operating unit. The memory part is an associative type memory in which a search can be executed using an element as a key, and which, at a data writing, compares new data and stored data and stores the result of the comparison. Alternatively, the memory part can realize fuzzy set calculation under the same procedure as data transfer by using a function to execute fuzzy logical calculations on the memory module in addition to data transfer, to thereby obtain very high speed calculating ability for fuzzy sets.

REFERENCES:
patent: 4860214 (1989-08-01), Matsuda et al.
patent: 4875184 (1989-10-01), Yamakawa
patent: 5012430 (1991-04-01), Sakukai
The design of a RISC based multiprocessor chip Gupta et al. IEEE/12-16 Nov. 1990.
Operation method in Fuzzy set operation processor Katsumata IEEE/14-16 Oct. 1991.
Generating Fuzzy rules by Learning from Examples Li-Xin Wang et al. IEEE 13-15 Aug. 1992.
Modelling and simulation of a parameterized fuzzy processor Chen et al. IEEE/10-13 May 1992.
Intelligent Control of a Flying Vehicle Using Fuzzy Associative Memory System Yamaguchi et al. IEEE/8-12 Mar. 1992.

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