System and method for reducing energy usage in a mobile communications device
US9323314B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2015 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | May 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A mobile communications device and a method for reducing energy usage in a mobile communications device are provided. An example mobile communications device includes an application processor. The application processor includes a first central processing unit (CPU), where the first CPU consumes a relatively high amount of power when operating in an active mode. The mobile communications device includes a microcontroller coupled to the application processor. The microcontroller includes a sensor subsystem configured to process, using a second CPU, first data received from one or more sensors. The second CPU consumes a relatively low amount of power when operating in an active mode. The microcontroller includes a location subsystem configured to receive satellite signals and process, using the second CPU, second data that is based on the received satellite signals. The first CPU operates in a sleep mode during the processing of the first and second data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.