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Portable terminal

A portable terminal and terminal technology, applied in advanced technology, instruments, power management, etc., can solve problems such as inconvenient use for users

Inactive Publication Date: 2004-04-28
HITACHT MAXELL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, if the function is turned off in order to suppress power consumption, it will cause inconvenience to the user.

Method used

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  • Portable terminal
  • Portable terminal
  • Portable terminal

Examples

Experimental program
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Embodiment Construction

[0021] Embodiments of the present invention will be described below using the drawings.

[0022] Figure 12 A schematic diagram (folding type) of a general portable terminal is shown. Figure 12 (a) is the open state of the terminal, Figure 12 (b) shows a state where the terminal is closed. In this case, the portable terminal 1 is composed of two foldable upper and lower parts, and the two parts are connected by a hinge mechanism or the like to have a foldable structure. On one of them, the antenna 2, the listening device 3, the main display screen 4, and the like are disposed. The main display screen 4 is a main screen for displaying various information to the user, and generally can be confirmed when the terminal is turned on. On the screen, information such as the reception status of radio waves, the presence or absence of mail reception, the remaining battery level, and date and time information are displayed.

[0023] On the other hand, another part constituting the...

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PUM

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Abstract

A portable terminal device suppresses increase in power consumption of a plurality of CPU while keeping favorable usability for the user of the device. The device includes a communication CPU to execute communication processing, an application CPU to execute application processing, a display to display an image according to a signal outputted from the communication CPU and / or application CPU, and a power supply to increase / decrease supply of power to the application CPU according to a periodical update interval of an image displayed on the display.

Description

technical field [0001] The present invention relates to a portable terminal having a display device. It is particularly concerned with state control processing of multiple CPUs. Background technique [0002] In conventional mobile phone devices, in order to reduce power consumption, the display screen is turned off after a period of time, and turned on by receiving a signal or pressing a key. (For example, refer to JP-A-2000-253141). In addition, in order to reduce power consumption, the display unit of the portable communication device is turned on at predetermined time intervals after it is turned off, so that the user can judge whether the device is operating. (For example, refer to JP-A-10-304031). [0003] In recent years, along with the multifunctionalization of mobile terminals such as mobile phones, a CPU for applications different from a communication CPU (Central Processing Unit) has been installed in the mobile terminals. When a plurality of CPUs are provided ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32H04B7/26H04M1/725H04M1/73H04W52/02H04W88/02
CPCH04W52/027G09G2330/022G06F1/3203Y02B60/50Y02B60/1242G06F1/3265Y02D10/00Y02D30/70
Inventor 森直树铃木幸治小岛进
Owner HITACHT MAXELL LTD