Electronic digital logic circuitry – Clocking or synchronizing of logic stages or gates
Reexamination Certificate
2008-05-13
2008-05-13
Le, Don P. (Department: 2819)
Electronic digital logic circuitry
Clocking or synchronizing of logic stages or gates
C326S038000, C326S046000, C326S008000
Reexamination Certificate
active
11243328
ABSTRACT:
An apparatus includes a plurality of macrocells formed from logic capable of performing one or more functions. The apparatus also includes a clock tree capable of receiving a clock signal and providing at least one copy of the clock signal to each macrocell. The clock tree includes a local branch within each macrocell, where each local branch is capable of providing at least one copy of the clock signal. In addition, the apparatus includes at least one glitch detection circuit capable of detecting a glitch in one or more copies of the clock signal provided by the local branches in the macrocells.
REFERENCES:
patent: 5732249 (1998-03-01), Masuda et al.
patent: 6016066 (2000-01-01), Ilkbahar
patent: 6925590 (2005-08-01), Campbell
patent: 6981204 (2005-12-01), Sakai et al.
patent: 2002/0060595 (2002-05-01), Nakano
patent: 2003/0052708 (2003-03-01), Momtaz et al.
patent: 2003/0214772 (2003-11-01), Hugues et al.
patent: 2004/0015774 (2004-01-01), Sakai et al.
patent: 2004/0044922 (2004-03-01), Wu
patent: 2005/0022075 (2005-01-01), Rodriguez
patent: 2006/0271793 (2006-11-01), Devadas et al.
patent: 2002-100980 (2002-05-01), None
European Search Report issued on Oct. 4, 2007 in European Patent Application No. 06 25 5109.
Fruhauf Serge F.
Pomet Alain C.
Jorgenson Lisa K.
Le Don P.
Munck William A.
STMicroelectronics Inc.
STMicroelectronics S.A.
LandOfFree
System and method for glitch detection in a secure... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for glitch detection in a secure..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for glitch detection in a secure... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3954148