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Communication method of nonsynchronous small key pad dond mainframe

A digital keyboard and communication method technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of inconvenient use of small digital keyboards, inability to input numbers, etc.

Inactive Publication Date: 2006-09-13
JING MOLD ELECTRONICS TECHSHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, one is to select the number keys 0-9 of the main keypad on the left side of the ordinary keyboard. This small number keyboard will be affected by the SHIFT key on the keyboard. In addition, these keys are used in some input methods. After switching to the relevant input method You cannot use the small numeric keypad to enter numbers when
The other is to select the 0-9 number keys in the number area on the right side of the normal keyboard, but this small number keyboard is affected by the state of NUMLOCK on the keyboard. When NUMLOCK is OFF, it is impossible to input numbers.
[0003] The above-mentioned inconvenience in use of the existing small numeric keypad is caused by the communication method between the existing small numeric keypad and the host computer. Therefore, the existing communication method between the small numeric keypad and the host computer needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The invention provides a communication method between an asynchronous small numeric keypad and a host, which includes the following steps:

[0014] Step 1: Input the CAPSLOCK (caps lock) or SCROLLOCK (scroll lock) signal from the small numeric keypad to the keyboard controller of the host computer;

[0015] Step 2: The keyboard controller changes the state of CAPSLOCK or SCROLLOCK, and sends the NUMLOCK state signal to the small numeric keypad;

[0016] Step 3: the keyboard gets the NUMLOCK (number lock) status signal;

[0017] Step 4: If the NUMLOCK state is ON, the keyboard inputs a digital signal to the keyboard controller, the keyboard controller sends the input digital signal to the operating system, and the keyboard sends a CAPSLOCK or SCROLLOCK signal to the keyboard controller of the host computer;

[0018] Step 5: If the NUMLOCK state is off (OFF), then the small numeric keypad will input the NUMLOCK signal to the keyboard controller of the host, the keyboard ...

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PUM

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Abstract

A method for communicating asynchronous small digital keyboard ( SDK ) with host includes inputting CAPSLOCK signal to host keyboard controller ( HKC ) by SDK, changing CAPSLOCK signal and inputting NUMLOCK state signal to SDK, inputting digital signal to keyboard controller by keyboard and inputting digital signal to operation system by keyboard controller as well as sending CAPSLOCK signal to HKC by keyboard when NUMLOCK state is opened, inputting NUMLOCK signal to HKC by SDK for changing NUMLOCK state and inputting digital signal to operation system by keyboard controller as well as sending NUMLOCK and CAPSLOCK signal to HKC by keyboard when NUMLOCK state is closed.

Description

technical field [0001] The invention relates to a communication method between a keyboard and a host, in particular to a communication method between an asynchronous small numeric keyboard and a host. Background technique [0002] In some occasions where many numbers are used, a small numeric keyboard is specially designed, which includes ten numeric keys from 0 to 9 and some arithmetic function keys, so the industry calls this type of keyboard a Tenkey keyboard. There are two ways to set the ten numeric keys of 0-9 in the small numeric keypads circulating on the market now. Among them, one is to select the number keys 0-9 of the main keypad on the left side of the ordinary keyboard. This small number keyboard will be affected by the SHIFT key on the keyboard. In addition, these keys are used in some input methods. After switching to the relevant input method , you cannot enter numbers using the small numeric keypad. The other is to select the 0-9 number keys in the number...

Claims

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Application Information

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IPC IPC(8): G06F3/023
Inventor 蔡火炉
Owner JING MOLD ELECTRONICS TECHSHENZHEN