Method and system for minimizing power consumption in mobile devices using cooperative adaptive voltage and threshold scaling
US7493149B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Jan 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for minimizing power consumption in a mobile device using cooperative adaptive voltage and threshold scaling is provided that includes receiving a supply voltage, a PMOS back bias voltage, and an NMOS back bias voltage. A clock signal is received. The clock signal is propagated through a timing comparison circuit. An output of the timing comparison circuit is examined. A determination is made regarding whether to request more power based on the output of the timing comparison circuit. A voltage control signal is sent to request more power when a determination is made to request more power based on the output of the timing comparison circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.