Static information storage and retrieval – Systems using particular element – Flip-flop
Reexamination Certificate
2002-01-31
2003-04-22
Phan, Trong (Department: 2818)
Static information storage and retrieval
Systems using particular element
Flip-flop
C365S156000, C365S207000
Reexamination Certificate
active
06552924
ABSTRACT:
FIELD OF THE INVENTION
This invention relates generally to CMOS integrated circuits and more particularly to circuits for storing digital data.
SUMMARY OF THE INVENTION
A pair of cross-coupled inverters that hold a digital state are powered by supplies that also function as row select and column bit lines. A voltage differential between at least first pair of supply lines and a second pair of supply lines causes a current to flow into at least a third supply line depending upon the state of the cells. This current is sensed to read the logical OR or AND of the cells.
REFERENCES:
patent: 5365475 (1994-11-01), Matsumura et al.
patent: 6292388 (2001-09-01), Camarota
patent: 6385081 (2002-05-01), Shiomi
Brooks Robert J
Neudeck Alexander J
Hewlett--Packard Development Company, L.P.
Neudeck Alexander J.
Phan Trong
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