The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2010
Filed:
Jan. 18, 2007
Dae Ik Kim, Fishkill, NY (US);
Jonghae Kim, Fishkill, NY (US);
Moon J Kim, Wappingers Fall, NY (US);
James R Moulic, Poughkeepsie, NY (US);
Dae Ik Kim, Fishkill, NY (US);
Jonghae Kim, Fishkill, NY (US);
Moon J Kim, Wappingers Fall, NY (US);
James R Moulic, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Systems, methods and program codes are provided for selectively adjusting multi-core processor chip structure individual processor core power supply voltages through controlling individual power supplies for each core, in one aspect to ensure that one or more cores operate at clock rates in compliance with one or more performance specifications. Nominal power supply voltage is supplied to a first processing core, and a second core power supply voltage greater or lower than the nominal power supply voltage is supplied to a second processing core, both cores operating in compliance with a reference clock rate specification. The second power supply voltage may be selected from ordered discrete supply voltages derived by progressively lowering the nominal supply voltage, optionally wherein the selected supply voltage also enables the second core to operate within another performance specification.