Handheld device and power saving method therefor

摘要

The present invention provides a handheld device comprising: a processor, which is electrically connected to a light sensor. When the processor determines that a phone call event has occurred, the processor will enable the light sensor to control the display. Moreover, the present invention provides a power saving method for a handheld device that will execute the following steps when a phone call event occurs: measuring an ambient brightness value of the handheld device; continuing determining whether a change of the ambient brightness values satisfies at least one predetermined condition; and turning off a display of the handheld device if the change satisfies the predetermined condition.

主权项

1. A handheld device with a display, comprising:
a processor, electrically connected to a light sensor and a receiver, the light sensor being located next to the receiver; wherein said processor is configured to determine whether a phone call event occurs; wherein said processor is configured to, when a phone call event has occurred, enable said light sensor to detect an initial ambient brightness value of the handheld device; wherein said processor is configured to adopt a first predetermined condition or a second predetermined condition based on said initial brightness value; wherein said processor is configured to determine, whether the handheld device is in a handed receiver mode or in a hands-free receiver mode after said phone call event occurs; wherein the processor is configured to, when the handheld device is in the handed receiver mode, enable said light sensor to detect a subsequent brightness value and to turn off the display based on the subsequent brightness value and the first or second predetermined condition; and the processor is configured to, when the handheld device is in the hands-free receiver mode, control the display based on the settings for the hands-free receiver mode.