公开(公告)号：US20030022699A1

公开(公告)日：2003-01-30

申请号：US09912299

申请日：2001-07-26

Applicant: Inventec Appliances Corp.

Inventor： Ching-Yuan Lin

IPC: H04M001/00

CPC classification number: G09G3/3406 ,  G09G2320/0606 ,  G09G2330/021 ,  G09G2360/144 ,  H04M1/22

Abstract: A method is implemented in a cellular phone having a display, a CPU, a photosensitive element (e.g., photoresistor) on a surface, and a control circuit coupled to the photosensitive element. The method comprises the steps of switching the cellular phone to an automatic background brightness control mode; measuring a voltage between two terminals of the photosensitive element by the CPU; and adjusting a background brightness of the display with respect to the measured voltage. Accordingly, CPU may lower the background brightness of the display as the voltage decreases, while increasing the background brightness of the display as the voltage increases. This can reduce power consumption of cellular phone display in a strong light environment.

Abstract translation: 在具有显示器，CPU，表面上的感光元件（例如，光敏电阻）的蜂窝电话中实现一种方法，以及耦合到感光元件的控制电路。 该方法包括以下步骤：将蜂窝电话切换到自动背景亮度控制模式; 通过CPU测量感光元件的两个端子之间的电压; 并且相对于测量的电压调整显示器的背景亮度。 因此，当电压降低时，CPU可以降低显示器的背景亮度，同时当电压增加时增加显示器的背景亮度。 这可以在强光环境中降低手机显示器的功耗。

公开(公告)号：US20030022704A1

公开(公告)日：2003-01-30

申请号：US09912298

申请日：2001-07-26

Applicant: Inventec Appliances Corp.

Inventor： Ching-Yuan Lin

IPC: H04M001/00

CPC classification number: H04W52/027 ,  H04W52/0225 ,  H04W52/0254 ,  Y02D70/00

Abstract: In a cellular phone having a central processing unit (CPU), a power saving method comprises the steps of (a) displaying predetermined icons on a display in an unused mode; (b) determining whether a receiver circuit of the cellular phone is disconnected from a telephone network; and (c) if result in step (b) is positive sending a sleep signal to a control chip of the cellular phone for causing the cellular phone to enter into a power saving mode by blanking the display. This can reduce power consumption while searching a telephone network, resulting in an increase of service time per charge.

Abstract translation: 在具有中央处理单元（CPU）的蜂窝电话中，省电方法包括以下步骤：（a）在未使用模式下在显示器上显示预定图标; （b）确定蜂窝电话的接收机电路是否与电话网络断开连接; 以及（c）如果步骤（b）中的结果是正向蜂窝电话的控制芯片发送睡眠信号，以使蜂窝电话通过消隐显示器进入省电模式。 这可以在搜索电话网络时降低功耗，导致每次充电的服务时间增加。