Portable electronic device and method for controlling screen protection function of the portable electronic device
US8832481B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Dec 16, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for controlling a screen protection function of a portable electronic device, the portable electronic device includes a gravity sensor, a display screen, and a storage system. The gravity sensor detects a horizontal vector and a vertical vector of a gravitational acceleration of the portable electronic device, and a tilt angle of the portable electronic device is calculated according to the horizontal vector and the vertical vector. The method activates a screen protection program of the portable electronic device to control the display screen to enter into a power saving mode if the tilt angle exceeds a preset tilt angle range stored in the storage system, and terminates the screen protection program to control the display screen to enter into a normal display mode if the tilt angle does not exceed the preset tilt angle range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.