Title :
An associative memory integrated system for character recognition
Author :
Pouliquen, Philippe O. ; Andreou, Andreas G. ; Strohbehn, Kim ; Jenkins, Robert E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
An associative memory chip is used for fast, robust character recognition. Operating in parallel, the chip determines the closest match between an input bit pattern and multiple stored bit patterns based on the Hamming distance; ties are broken arbitrarily. The chip is programmable for bit-mapped fonts of up to 124 bits per character and can store up to 116 characters. A fully functional 6.8 mm by 6.9 mm chip has been fabricated in a standard single-poly, double-metal 2.0 μm n-well CMOS process
Keywords :
CMOS memory circuits; Hamming codes; character recognition; content-addressable storage; neural chips; 2.0 micron; Hamming distance; associative memory integrated system; bit-mapped fonts; input bit pattern; multiple stored bit patterns; n-well CMOS process; robust character recognition; single-poly double-metal process; Associative memory; Biological systems; Biology computing; Character recognition; Computer interfaces; Humans; Independent component analysis; Neural networks; Silicon; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-1760-2
DOI :
10.1109/MWSCAS.1993.342935
