Method and devices for storing a security key using...

Details Method and devices for storing a security key using... Method and devices for storing a security key using...

2010-02-22

2010-11-16

Cho, James H. (Department: 2819)

Electronic digital logic circuitry

Security

C326S038000, C713S189000, C713S193000, C716S030000

Reexamination Certificate

active

07834652

ABSTRACT:
In embodiment of the invention, a programmable logic device includes configuration memory adapted to be programmed with configuration data and a plurality of programmable fuses adapted to store a security key for use with configuration data. The security key includes a plurality of data bit values, wherein each data bit value of the security key is associated with a subset of a least three fuses each storing a bit. Each of a plurality of decoders is adapted to retrieve a data bit value of the security key by providing the bit value stored by a majority of the fuses of the associated subset as the data bit value of the security key.

REFERENCES:
patent: 6118869 (2000-09-01), Kelem et al.
patent: 6212639 (2001-04-01), Erickson et al.
patent: 6654889 (2003-11-01), Trimberger
patent: 6944083 (2005-09-01), Pedlow, Jr.
patent: 7284134 (2007-10-01), Fujiwara et al.
patent: 7339400 (2008-03-01), Walstrum et al.
patent: 2002/0199110 (2002-12-01), Kean

Affiliated with

Also associated with

Rating

Method and devices for storing a security key using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and devices for storing a security key using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and devices for storing a security key using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4250594