Data processing apparatus and method using monitoring circuitry to control operating parameters
US8639987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jun 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus and method are provided that use monitoring circuitry to control operating parameters of the data processing apparatus. The data processing apparatus has functional circuitry for performing data processing, the functional circuitry including error correction circuitry configured to detect errors in operation of the functional circuitry and to repair those errors in operation. Tuneable monitoring circuitry monitors a characteristic indicative of changes in signal propagation delay within the functional circuitry and produces a control signal dependent on the monitored characteristic. In a continuous tuning mode operation, the tuneable monitoring circuitry modifies the dependency between the monitored characteristic and the control signal in dependence upon certain characteristics of the errors detected by the error correction circuitry. An operating parameter controller is then arranged, in the continuous mode of operation, to control one or more performance controlling operating parameters of the data processing apparatus in dependence upon the control signal. This enables efficient and robust control of those operating parameters in response to changes …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.