Patent ID: 8665279
Filing Date: 2014-03-04
Classification: G06F,G09G,Y02D

Abstract:
1. An electrical device supporting switchable graphics function, electrically connected with a display unit, comprising: a first graphic chip; a second graphic chip; a peripheral; an Embedded Controller (EC), electrically connected with the peripheral, comprising: an EC RAM, storing information of a present graphic chip, wherein the present graphic chip is one of the first graphic chip and the second graphic chip; and a control unit, electrically connected with the EC RAM, comprising: a first obtaining module, obtaining the information of the present graphic chip from the EC RAM; and a peripheral-controlling module, controlling operation status of the peripheral according to the obtained information of the present graphic chip; and a processing unit, electrically connected with the first graphic chip, the second graphic chip and the EC, comprising: a second obtaining module, obtaining the information of the present graphic chip from the EC RAM; and a driving module, wherein the driving module drives the first graphic chip to process an image signal and transmit the processed image signal to the display unit for display when the present graphic chip is the first graphic chip, and the driving module drives the second graphic chip to process the image signal and transmit the processed image signal to the display unit for display when the present graphic chip is the second graphic chip; wherein the peripheral comprises a cooling fan; wherein heat generated by the first graphic chip when the first graphic chip is enabled is more than heat generated by the second graphic chip when the second graphic chip is enabled; wherein the control unit of the EC further comprises a determining module, determining if the first graphic chip is enabled; wherein the peripheral-controlling module of the control unit of the EC comprises a fan controller controlling operating status of the cooling fan; wherein the fan controller performs control comprising: controlling the cooling fan rotating at a first rotational speed when the present graphic chip is the first graphic chip; controlling the cooling fan rotating at second rotational speed when the present graphic chip is the second graphic chip; and controlling the cooling fan rotating at the first rotational speed when the first chip is enabled and the present graphic chip is the second graphic chip, the first rotational speed is faster than the second rotational speed.