×

PORTABLE ELECTRONIC DEVICE AND POWER-SAVING METHOD THEREFOR

  • US 20140287777A1
  • Filed: 03/20/2013
  • Published: 09/25/2014
  • Est. Priority Date: 03/20/2013
  • Status: Active Grant
First Claim
Patent Images

1. A portable electronic device, comprising:

  • a wireless communication module configured to wirelessly collect location information from at least one remote station;

    a processing unit configured to execute a positioning application, and calculate a position of the portable electronic device based on the collected location information when the positioning application is executed;

    a display device configured to operate at a bright mode or a dim mode, wherein the display device operates at the bright mode when the calculated position indicates that the portable electronic device is kept being moved; and

    a backlight driver coupled to the processing unit, wherein the processing unit is further configured to control the backlight driver to make the display device leave the bright mode and enter the dim mode when the calculated position indicates that the portable electronic device is not moved for a first predetermined time period.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×