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Computer system and peripheral equipment drive method

A technology of computer system and driving method, which is applied in energy-saving computing, instruments, electrical digital data processing, etc., to achieve the effect of increasing battery usage time

Active Publication Date: 2009-11-18
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the frequent bus activity caused by the USB architecture, the processor has no chance to enter the more power-saving C3 state

Method used

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  • Computer system and peripheral equipment drive method
  • Computer system and peripheral equipment drive method
  • Computer system and peripheral equipment drive method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to save the power consumption of the processor, the computer system proposed by the present invention can use the USB interface device without waking up the processor. Convert the original USB input signal from the USB interface device into a non-USB transmission communication protocol signal through the specification conversion interface in the computer system, and transmit it to a transmission communication port for further processing, so as to support hot plugging and save power . The non-USB transmission communication protocol signal referred to here can be a two-way synchronous serial communication protocol signal (such as: PS / 2 protocol signal), serial protocol signal (such as: RS / 232 protocol signal), parallel protocol signal or other non-USB Transmission of communication protocol signals. In addition, the transmission communication port referred to here may be a two-way synchronous serial communication port (such as a PS / 2 port), a serial port (such as an R...

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Abstract

The invention provides a computer system and a peripheral equipment drive method; and the computer system comprises a processor which operates in a switch way among various power statuses, wherein a universal serial bus joint can be connected with a universal serial bus interface device to receive a universal serial bus input signal. A PS / 2 conversion interface is coupled with the universal serial bus joint and converts the universal serial bus input signal into a PS / 2 protocol signal. A system chip is provided with a PS / 2 port which is coupled with the PS / 2 conversion interface and can be used for receiving the PS / 2 protocol signal to execute the function of the universal serial bus interface device. The system and the method can lead a user to maintain the use habit of the original USB interface device and can lead the whole mobile device to be more power-saving, thus increasing the use time of a battery.

Description

Technical field [0001] The present invention relates to the application of a computer system, and particularly relates to a computer system with power saving effect and a power saving method thereof. Background technique [0002] In mobile devices such as notebook computers, battery life is a key bottleneck in the design, and the processor has always been the main source of power consumption. According to the specifications of advanced configuration and power management interface (ACPI), the power state of the processor is designed as C0, C1, C2, C3, ... Cn. Among them, C0 represents the active state. At this time, the processor executes instructions and consumes the most power. The other C1 to Cn are in different sleep states in sequence, and the processor can consume less power. Therefore, if the power state of the processor can be kept in a deep sleep state as much as possible, power consumption can be reduced and the battery life of the notebook computer can be extended. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F13/42
CPCY02B60/1228Y02B60/1235Y02D10/00
Inventor 黄宗庆林莉凤
Owner VIA TECH INC
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