Content addressable memory of a simple construction capable of r

Details Content addressable memory of a simple construction capable of r Content addressable memory of a simple construction capable of r

1996-09-03

1998-07-28

Gossage, Glenn

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

365 49, G06F 1204, G11C 1500

Patent

active

057874581

ABSTRACT:
A content addressable memory system includes one retrieval sense amplifier provided in common with a plurality of memory words. A logic operation between a result of retrieval outputted from the sense amplifier and the result of a preceding retrieval stored in a one-bit working register provided for the same sense amplifier is carried out by a control gate also provided for the same sense amplifier, and the result of the logic operation is stored back in the same working register. A plurality of working registers may be provided for each control gate and sense amplifier. The content addressable memory system can retrieve a variable word length data and can be realized with a reduced circuit area.

REFERENCES:
patent: 5502832 (1996-03-01), Ali-Yahia et al.
patent: 5642114 (1997-06-01), Komoto et al.
patent: 5677883 (1997-10-01), Miwa

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