A multi-input current-mode fuzzy integrated circuit for pattern recognition

Author

Lin, Gu ; Shi, Bingxue

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing, China

Volume

1

fYear

1999

fDate

36342

Firstpage

687

Abstract

The multi-input current-mode fuzzy recognition integrated circuit proposed can accept multiple inputs that represent multiple features of an unknown pattern in time-sharing way. The principle of the fuzzy circuit is based on the “sum sorting” rule. In the fuzzy circuit, the membership function generator employs current-mode circuit to generate memberships corresponding to each standard pattern according to the input features. Switched current accumulators are adopted to realize the sum function for synthetic memberships. The sorting circuit sorts all the synthetic memberships based on their magnitudes, and finally recognition results are outputted. The fuzzy integrated circuit has been successfully manufactured in 2 μm N-well standard digital CMOS process. It has been applied to speaker-independent Chinese digits speech recognition with high recognition speed of 1.7×10⁵ digits per second

Keywords

CMOS digital integrated circuits; current-mode circuits; digital signal processing chips; fuzzy logic; speech recognition equipment; digital CMOS IC; digital signal processor; fuzzy integrated circuit; membership function generator; multiple input current-mode circuit; pattern recognition; speech recognition; sum sorting; time-sharing; CMOS digital integrated circuits; CMOS integrated circuits; Current mode circuits; Integrated circuit manufacture; Manufacturing processes; Pattern recognition; Signal generators; Sorting; Speech recognition; Time sharing computer systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Processing and Manufacturing of Materials, 1999. IPMM '99. Proceedings of the Second International Conference on

Conference_Location

Honolulu, HI

Print_ISBN

0-7803-5489-3

Type

conf

DOI

10.1109/IPMM.1999.792580

Filename

792580