Charge coupled device stack memory organization and refresh meth

Details Charge coupled device stack memory organization and refresh meth Charge coupled device stack memory organization and refresh meth

1974-09-09

1976-08-17

Fears, Terrell W.

Communications: electrical

Digital comparator systems

307221C, 357 22, G11C 1140

Patent

active

039757170

ABSTRACT:
An extendable memory organization capable of last-in-first-out or first-in-first-out operation comprising a stack of charge coupled device shift registers arranged such that each register shifts data in a direction opposite to that of its adjoining neighbors in the stack. Gating interconnecting the registers is selectively operable to enable read and write operations at either of the stack and up or down shifting of data in the stack. In particular, the gating and control structure permits refreshing the memory by alternately shifting each stored data word up and down between two storage positions in the stack. In one embodiment, gating and control is implemented in a sandwich structure incorporated into the charge coupled shift register channel.

REFERENCES:
patent: 3643106 (1972-02-01), Berwin
patent: 3763480 (1973-10-01), Weimer
patent: 3772658 (1973-11-01), Sarlo

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