CAM (content addressable memory) apparatus

Details CAM (content addressable memory) apparatus CAM (content addressable memory) apparatus

2007-01-02

2007-01-02

Tran, Michael (Department: 2827)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S189070

Reexamination Certificate

active

10723833

ABSTRACT:
The present invention provides a CAM (content addressable memory) apparatus having: a first memory device (10) with a word line input (WL) and at least one storage node (12; 13) for storing a first bit of a data word; a second memory device (11) with a word line input (WL) and at least one storage node (14; 15) for storing a second bit of a data word; and a comparator device (16) for comparing the first and second stored bits with two precoded comparison bits fed via four inputs (20; 21; 22; 23) and for driving a hit node (17) in the event of the first stored bit corresponding to the first comparison bit and the second stored bit corresponding to the second comparison bit.

REFERENCES:
patent: 6000008 (1999-12-01), Simcoe
patent: 6199140 (2001-03-01), Srinivasan et al.
patent: 6215685 (2001-04-01), Fung et al.
patent: 6286091 (2001-09-01), Park
patent: 6421265 (2002-07-01), Lien et al.
patent: 6944709 (2005-09-01), Nataraj et al.
patent: 2001/0017801 (2001-08-01), Helwig et al.
patent: 2004/0213027 (2004-10-01), Liu et al.

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