Interrupt/wake-up of an electronic device in a low power sleep mode when detecting a sensor or frequency source activated frequency change
US8041973B2 · kind B2 · utility
2Cited by
7References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device will wake-up from the low power sleep mode. In addition, when a change in frequency from an external frequency source is detected, the electronic device will wake-up from the low power sleep mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.