Recognition memory with multiwrite and masking

Details Recognition memory with multiwrite and masking Recognition memory with multiwrite and masking

1979-04-09

1981-03-17

Fears, Terrell W.

Static information storage and retrieval

Associative memories

Ferroelectric cell

364200, G11C 1500

Patent

active

042571103

ABSTRACT:
An improved associative memory employs plural separately addressable memories, e.g., random access memories (RAM's), which may be written into, or read from in conventional fashion. In a recognition mode, information is read from differing memory locations, and compared with an operand supplied on a data bus by a central processing unit (CPU), comparator apparatus being common for an array of storage locations. The comparison results, determined in accordance with a CPU-specified criterion, are then communicated back to the processor.
In accordance with specific aspects of the present invention, masking and/or multiwrite features are provided to permit bit reading/writing/searching, rapid memory writing, to facilitate logical and arithmetic data processing and the like.

REFERENCES:
patent: 4069473 (1978-01-01), Vitaliev et al.
patent: 4144564 (1979-03-01), Lamb
patent: 4145737 (1979-03-01), Lamb et al.
patent: 4149262 (1979-04-01), Lamb et al.
patent: 4163288 (1979-07-01), Vinot

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