Method for automatically controlling on and off of infrared transmission module

An infrared transmission and control chip technology, applied in program control devices, program loading/starting, etc., can solve problems such as impact on production efficiency, inability to be permanently saved, errors, etc., to reduce type matching, reduce production processes, and improve production. The effect of efficiency

Inactive Publication Date: 2007-01-31
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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Embodiment Construction

[0021] figure 1 is a pinout diagram showing an interface circuit of a prior art infrared transmission module.

[0022] Such as figure 1 As shown, the interface circuit used to connect with the infrared transmission module on the computer motherboard includes five 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 the pin 1 is connected to the power supply voltage Vcc (that is, high level), and it can be called a power supply pin here. Under normal circumstances, when assembling the host with the infrared transmission module, plug the independent infrared transmission small board with the infrared transceiver in the infrared transmission module into the 5 PIN pins above.

[0023] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] figure 2 is a pin layout diagram showing an interface circuit of an i...

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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 particularly, to automatically controlling the enabling of an infrared transmission module through the cooperation of the motherboard integrated circuit and the BIOS (Basic Input and Output System) during the generation process And the method of disabling, wherein 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 activation of the infrared transmission function needs to manually call the BIOS unit to turn on and off the infrared transmission function, which involves several main steps such as BIOS calling, function selection, saving and exiting. In the process of mass production of PCs, due to different applications (with infrared transm...

Claims

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Application Information

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