Content addressable memory device

Static information storage and retrieval – Associative memories – Ferroelectric cell

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C365S200000, C365S203000

Reexamination Certificate

active

07002822

ABSTRACT:
A ternary content addressable memory (TCAM) device comprising a plurality of TCAM cells for storing data, each TCAM cell having two memory cells and a comparison circuit for comparing between data stored in the memory cells and data input on a search line pair connected to the comparison circuit, wherein the comparison circuit comprises a first plurality of MOS transistors connected between a match line and a second plurality of MOS transistors, the second plurality of MOS transistors being connected to ground, wherein the first plurality of MOS transistors are gated by signals from the memory cells connected thereto and the second plurality of transistors are gated by signals from a search line pair. The TCAM device includes redundant memory cells which replaces by corresponding column memory cells determined to be defective. Each line of a search line pair is connected to a defective cell is discharged to ground.

REFERENCES:
patent: 5319590 (1994-06-01), Montoye
patent: 5949696 (1999-09-01), Threewitt
patent: 6320777 (2001-11-01), Lines et al.
patent: 6411538 (2002-06-01), Kengeri
patent: 6445628 (2002-09-01), Pereira et al.
patent: 6496399 (2002-12-01), Choi et al.
patent: 6522562 (2003-02-01), Foss
patent: 6845025 (2005-01-01), Nataraj
patent: 6888730 (2005-05-01), Foss et al.
patent: 2002/0015348 (2002-02-01), Gillingham et al.
patent: 2002/0067632 (2002-06-01), Batson et al.
patent: 2003/0081442 (2003-05-01), Tsuda et al.
patent: 2003/0206466 (2003-11-01), Aikawa
patent: 2004/0022098 (2004-02-01), Hatanaka et al.
patent: 2004/0213027 (2004-10-01), Liu et al.
patent: 2002-260389 (2002-09-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Content addressable memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Content addressable memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Content addressable memory device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3696517

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.