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US 7,467,050 B2Granted
Method for detecting noise events in systems with time variable operating points
AssigneeInternational Business Machines Corporation
InventorsDaniel Douriet, Anand Haridass, Andreas Huber, Colm B. O'Reilly, Bao G. Truong, Roger D. Weekly
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Abstract
A circuit for detecting noise events in a system with time variable operating points is provided. A first voltage, which is averaged over time, is compared to a second voltage. A signal is generated to instruct circuits within a processor to initiate actions to keep a voltage from drooping further.
Claims10
A method for detecting noise events in a system with time variable operating points, said method comprising:
- receiving a first voltage, wherein the first voltage is a first fractional portion of a selected voltage to be monitored;
- receiving a second voltage, wherein the second voltage is a second fractional portion of the monitored voltage and defines a threshold for a time variable operating point;
- comparing the first voltage to the second voltage to form a comparison, wherein the comparison identifies a noise event;
- and
- responsive to the comparison meeting a specified criteria, generating a signal to instruct circuits in a processor to initiate actions to keep the monitored voltage from drooping below the threshold.
2 more elements
Dependencies are inferred from the claim text.