Title :
Cort-X II: low power element design of a large-scale spatio-temporal pattern clustering system
Author :
Yuan, Jie ; Song, Ning ; Farhat, Nabil ; Van der Spiegel, Jan
Author_Institution :
Dept. of ESE, Pennsylvania Univ., Philadelphia, PA
Abstract :
Complex spatio-temporal patterns can be clustered using a network of parametrically coupled logistic maps. This paper describes the processing element design of such a Cort-X system. Each Cort-X element consists of a non-linear coupling (LC) and a non-linear dynamic element (IRON). The circuits are designed for low-power operation and to be robust against process variations. This has been accomplished by using open-loop circuits, and a self-calibration technique that compensate for process variations. The circuits were implemented in a 0.25 mum, 2.5V CMOS process and consumes a total of 12mW of power at 1MHz which is about a factor of 20 less power than previous realizations. This opens the possibility for building a large-scale Cort-X system on a chip for the recognition of complex spatio-temporal patterns.
Keywords :
integrated circuit design; low-power electronics; open loop systems; pattern clustering; 0.25 micron; 1 MHz; 12 mW; 2.5 V; Cort-X II; large-scale spatio-temporal pattern clustering system; low power element design; low-power operation; nonlinear coupling; nonlinear dynamic element; open-loop circuits; parametrically coupled logistic maps; self-calibration technique; CMOS process; Coupling circuits; Iron; Large-scale systems; Logistics; Nonlinear dynamical systems; Pattern clustering; Pattern recognition; Process design; Robustness;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378142
