Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses
Reexamination Certificate
2006-09-11
2010-06-22
Lee, Thomas (Department: 2116)
Electrical computers and digital processing systems: support
Synchronization of clock or timing signals, data, or pulses
Reexamination Certificate
active
07743270
ABSTRACT:
A method, system and computer program product reducing clock noise generated by clock signals in an integrated circuit (IC) are disclosed. Conventional IC design attempts to ensure coincident clock active edge arrival times for all clocked elements. The coincident active clock edges generate coincident noise currents, which elevates the total noise current. The current invention assigns clock arrival times for clocked elements of an IC based on a desired clock arrival time distribution such that active clock edges are not coincident. As a consequence, the total noise would be spread over a large portion of the clock cycle, thus reducing the noise magnitude substantially.
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Arsovski Igor
Iadanza Joseph A.
Norman Jason M.
Ventrone Sebastian T.
Hoffman Warnick LLC
International Business Machines - Corporation
Kinsey Brandon
Lee Thomas
LeStrange Michael
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