Static information storage and retrieval – Systems using particular element – Negative resistance
Reexamination Certificate
2006-10-17
2006-10-17
Le, Vu A. (Department: 2824)
Static information storage and retrieval
Systems using particular element
Negative resistance
C365S175000
Reexamination Certificate
active
07123508
ABSTRACT:
A reference cell produces a reference current that is about half of the current produced by a memory cell. The reference cell is essentially the same as the memory cell with an additional current reduction device that can be a transistor. Adjusting a reference voltage applied to the transistor allows the reference current to be varied. A control circuit to produce the reference voltage includes dedicated memory and reference cells and a feedback circuit that compares the two cells' currents. The feedback circuit applies the reference voltage to the reference cell of the control circuit and adjusts the reference voltage until the current from the reference cell is about half of the current from the memory cell. The reference voltage is then applied to other reference cells in a memory array.
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Horch Andrew
Samaddar Tapan
Le Vu A.
T-RAM, Inc.
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