Frequency modification techniques that adjust an operating frequency to compensate for aging electronic components
US7475320B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2003 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A number of performance parameters for the electronic system are determined at a particular age of the electronic system. The performance parameters can be correlated to maximum operating frequency of electronic components of the electronic system for the particular age of the electronic system. Operating frequency of the electronic components is adjusted in accordance with the performance parameters. The performance parameters may be predetermined (such as through reliability and burn-in testing), determined during the life of the electronic system, or some combination of these. Performance parameters can comprise prior operating frequencies, hours of operation, ambient temperature, and supply voltage. Performance parameters can comprise performance statistics determined using age-monitoring circuits, where an aged circuit is compared with a circuit enabled only for comparison. Performance statistics may also be determined though error detection circuits. If an error is detected, the operating frequency can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.