Method for automatically controlling on and off of infrared transmission module

A technology of infrared transmission and control chip, which is applied in the direction of program control device, program loading/starting, etc., which can solve the problems of production efficiency impact, inability to be permanently stored, errors, etc., to improve production efficiency, reduce production process, and reduce types matching effect

Inactive Publication Date: 2009-01-21
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: because the BIOS system is an important control system at the bottom of the computer, it is frequently upgraded and maintained, and the resulting errors often occur
The disadvantage of this method is that the production efficiency will be greatly affected, and due to manual intervention, the consistency and stability of the PC from the factory cannot be guaranteed.
Another fatal shortcoming is: because the manually adjusted BIOS is only temporarily set to a certain state and cannot be permanently saved, when the PC is sold to the client, as long as the default setting is entered into the BIOS, the original artificially modified infrared transmission function setting will be cleared automatically
In a large-scale production environment, this is obviously extremely disadvantageous

Method used

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  • Method for automatically controlling on and off of infrared transmission module
  • Method for automatically controlling on and off of infrared transmission module
  • Method for automatically controlling on and off of infrared transmission module

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Experimental program
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Embodiment Construction

[0021] figure 1 It is a pin layout diagram showing the interface circuit of the infrared transmission module in the prior art.

[0022] Such as figure 1 As shown, the interface circuit used to connect to the infrared transmission module on the computer motherboard includes 5 pins 1-5. The arrangement of these pins of the interface circuit is well known in the art, so it will not be described in detail. It should be noted that pin 1 is connected to the power supply voltage Vcc (ie, high level), which can be referred to as a power supply pin here. Under normal circumstances, when the host with the infrared transmission module is assembled, the independent infrared transmission small board with the infrared transceiver in the infrared transmission module is plugged into the upper 5 PIN pins.

[0023] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0024] figure 2 It is a diagram showing the pin layout of the interfa...

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PUM

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Abstract

The invention supplies a method to start or forbid automatic control inferred transferring module. It includes the following steps: gaining GPIO pin state on control chip; judging level state; on high level situation, control chip controlling BIOS system to forbid inferred module and start operation system; on low level situation, starting interred transferring module and starting operation system.

Description

Technical field [0001] The present invention relates to a method for automatically controlling the enabling and disabling of an infrared transmission module, and more specifically, to the automatic control of the enabling and disabling of the infrared transmission module through the cooperation of a motherboard integrated circuit and BIOS (Basic Input Output System) especially during the generation process And the method of disabling, by adding a control signal line combined with the traditional infrared transmission (IrDA) line, the automatic switch of the infrared transmission function of the host is realized. Background technique [0002] At present, the startup of the infrared transmission function requires a manual call to the BIOS unit to turn on and off the infrared transmission function. During this period, several main steps such as BIOS call, function selection, save and exit are involved. In the PC mass production process, different applications (with infrared transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445
Inventor 宋万峰
Owner LENOVO (BEIJING) LTD
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