Portable terminal device
AssigneeHitachi, Ltd.
InventorsNaoki Mori, Koji Suzuki, Susumu Kojima
Life of this patent
Estimating the term…
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.
Claims18
A portable terminal device, comprising:
- a communication central processing unit (CPU) for executing communication processing;
- an application CPU for executing application processing;
- display means for displaying an image according to a signal outputted from the communication CPU and/or application CPU;
- and
- power supply means for increasing or for decreasing supply of power to the application CPU according to a periodical update interval of an image displayed on the display means.
A portable terminal device, comprising:
- a communication CPU for executing communication processing;
- an application CPU for executing application processing;
- display means for displaying an image according to a signal outputted from the communication CPU and/or application CPU;
- a backlight for emitting light to the display means;
- and
- power supply means for controlling supply of power to the application CPU according to a state in which the backlight turns on or off.
An information communication terminal device, comprising:
- communication means for communicating information;
- display means for displaying an image thereon;
- a plurality of CPU for processing information;
- and
- CPU state control means for controlling a state of each of the CPU according to a periodical update interval of an image displayed on the display means.
Dependencies are inferred from the claim text.