Method and apparatus for power management using system and request tokens
US7287170B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2002 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A power management control circuit and method thereof includes a power register that contains a number of request tokens for at least one power consumption module. The number of request tokens represents a power adjust level of the at least one power consumption module. The power management control circuit and method thereof further includes a power controller coupled to the power register, wherein the power controller determines whether to adjust the power consumption module based on a comparison of a number of system tokens with the number of request tokens for the power consumption module. The power management control circuit and the method thereof further includes a token generator coupled to the power controller. The token generator generates the predetermined number of system tokens and a token valid signal for clearing an up token register and a down token register for each predetermined time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.