Pattern search and refresh logic in dynamic memory

Details Pattern search and refresh logic in dynamic memory Pattern search and refresh logic in dynamic memory

G - Physics

06

K

G06K 9/62 (2006.01) G06F 7/02 (2006.01) G06F 12/06 (2006.01) G06F 12/08 (2006.01) G06F 17/30 (2006.01) G11C 11/406 (2006.01) G11C 15/04 (2006.01)

Patent

CA 2150822

The invention is a dynamic storage device (Figs. 3-10) requiring periodic refresh, and including logical operation circuitry (e.g., 21 and 24 of FigA) within the refresh circuitry (19 of Fig. 4). The individual storage positions of the storage device are periodically read by a refresh amplifier (RE of Fg. 4), and then a logical operation is performed on the refresh data before the data is applied to the write amplifier (WR of Fig. 4). This operation allows implementation of associative data base searching by cyclically excecuting data compare and other logical operations within the refresh circuitry. Storage systems for use with such devices (e.g.. Fig 12) are also disclosed.

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