Power management method for handheld electronic device using G-sensor
First Claim
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1. A power management method for a handheld electronic device, comprising:
- using a G-sensor for detecting a normal vector of a plane which is a screen of the handheld electronic device comprising a verticle type or a glide open type handheld electronic device;
determining whether the normal vector comprising an x, y, or z component is directed toward a downward direction by determining whether the z component of the normal vector is negative, and the x component and the y component of the normal vector fall within a specific range respectively; and
the normal vector is determined to be directed toward the downward direction when the z component of the normal vector is negative and the x component and the y component of the normal vector fall within the specific range; and
controlling the handheld electronic device to enter a power saving mode if the normal vector of a plane which is a screen of the handheld electronic device is directed toward the downward direction.
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Abstract
A power management method for a handheld electronic device is provided. In the present method, a G-sensor is used for detecting a normal vector of a plane of the handheld electronic device. The normal vector is then determined whether being directed toward a downward direction. When the normal vector is determined as being directed toward the downward. Accordingly, the handheld electronic device can be controlled to enter the power saving mode timely according to the positioned state of the device without going through complicated procedures such as operating a menu, so as to provide a more intuitive and convenient way for power management.
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Citations
9 Claims
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1. A power management method for a handheld electronic device, comprising:
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using a G-sensor for detecting a normal vector of a plane which is a screen of the handheld electronic device comprising a verticle type or a glide open type handheld electronic device; determining whether the normal vector comprising an x, y, or z component is directed toward a downward direction by determining whether the z component of the normal vector is negative, and the x component and the y component of the normal vector fall within a specific range respectively; and
the normal vector is determined to be directed toward the downward direction when the z component of the normal vector is negative and the x component and the y component of the normal vector fall within the specific range; andcontrolling the handheld electronic device to enter a power saving mode if the normal vector of a plane which is a screen of the handheld electronic device is directed toward the downward direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification