Electronic device for extending battery life in mobile applications
US9740265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2015 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Jun 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3296
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an electronic device comprises an oscillator configured to generate an oscillator signal, and a timing circuit configured to generate a count value based on the oscillator signal, to compare the count value with a first compare value, to determine a first expiry event upon the count value matching the first compare value, and to generate a first wakeup signal in response to the first expiry event. The electronic device also comprises a battery pass circuit configured to receive the first wakeup signal, and to couple a power source to a main device in response to the first wakeup signal to power on the main device. The electronic device further comprises a state sequencing circuit configured to store a state of the main device, and an interface circuit configured to communicate the stored state to the main device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.