Standby operation with additional micro-controller
US9021284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2011 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 16, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention relates to a low-power micro-controller unit having both a standby micro-controller optimized for low power consumption and a main micro-controller optimized for high performance. A power supply is coupled to the main micro-controller and the standby micro-controller. The power supply provides power to one or more of the low-power, standby micro-controller and the high performance, main micro-controller by separate power supply paths, depending on system needs. The separate power supply paths allow the main micro-controller and the standby micro-controller operate independent of each other. During a low-power standby operating mode, power can be disconnected to the main micro-controller, while providing power to the standby micro-controller, thereby eliminating the leakage current associated with the large number of transistors in the main micro-controller, while still retaining the computational capabilities of the standby micro-controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.