JPS61228523A - Keyboard controlling system - Google Patents

Abstract

PURPOSE:To attain the automatic switching of a single keyboard as several types of keyboards by providing a key function information part and making a keyboard control part refer to the key function information of the key function information received the control of a control part. CONSTITUTION:A control part 9 is actuated with application of a power supply. Thus the key function is stored in a key function information part 8 and also displayed at a display part 10. When a key switch 1 is pressed on a keyboard 2, a reception circuit 4 of a keyboard control part 7 detects the push of the switch 1. A matrix code producing part 5 produces a matrix code from the data on the circuit 4 and the data given from a key scan circuit 3 and delivers it to a keyboard control circuit 6. Based on the matrix code, the circuit 6 reads the key function out of the part 8 and delivers a code showing the key function to the part 9. Then the part 9 displays the process corresponding to said code at the part 10 and also rewrites the key function information of the part 8 to the new key function information of the keyboard 2 when the function of the keyboard 2 is required.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a terminal device, and particularly to a keyboard control method suitable for keyboard control [Background of the Invention] Conventional keyboards are not used for data entry or for specific tasks. Each has different functions and is a separate device. On the other hand, in recent years, a single terminal device can perform multiple functions, but it is necessary to replace the keyboard, or to connect a combination of several types of keyboards. The former requires a procedure to notify the control unit of the terminal device that the keyboard has been replaced each time the keyboard is replaced, while the latter requires a larger keyboard and requires the use of any of several types of keyboards as a means of preventing erroneous operations. There were problems with operability, such as the need to go through the following procedures. Examples of related devices of this type include:

JP-A-59-127141, JP-A-59-119
There is a publication No. 456.

[Purpose of the invention]

The purpose of the present invention was to solve the above problems, and it is possible to use one keyboard as several types of keyboards with different functions, and to automatically switch between these functions to reduce the burden on the operator. The purpose is to provide a keyboard control method.

[Summary of the invention]

In order to achieve the above object, the present invention provides a terminal device including a keyboard, a keyboard control section, a control section and a display section that receive and display data from a board control section and perform host combinator processing. A key function information section for storing key functions is provided, and the keyboard control section refers to the key function information in the key function information section under the control of the control section, thereby automatically switching the keyboard function. It is something to do.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, which includes a keyboard 2 consisting of a set of key switches 1, a scan circuit 3. A keyboard control section 7 consisting of a receiving circuit 4, a matrix code creation circuit 5, and a keyboard control circuit 6
, keyboard function information section 8, control section 9, and display section 1
0 shows a terminal device consisting of 0. When power is turned on to the terminal device 1, the control section 9 operates, causing the function information section 8 to store information so that the keyboard 2 has predetermined key functions, and displaying the keyboard on the display section 10. A display is made to inform the operator whether or not the operation in step 2 may be performed. When the operator presses the key switch 1 on the keyboard 2.

The reception circuit 4 detects this, and the matrix code creation circuit 5 creates a matrix code using the data from the reception circuit 4 and the data from the scan circuit 3, and passes it to the keyboard control circuit 6. The keyboard control circuit 6 reads the key function from the key function information section 8 based on the matrix code passed from the matrix code generation circuit 5, makes a determination, and passes the hood indicating the key function to the control section 9. The control unit 9 displays the processing corresponding to the above code on the display unit 10, and communicates with the host combiator (i') f-Yu! When a process for switching the function of the keyboard 2 is necessary, the control section 9 rewrites the key function information in the key function information section 8 with new key function information for the keyboard 2. A keyboard 2 has key switches 1 arranged in a matrix and is scanned by a scan circuit 3. The signal output from the keyboard 2 by this scanning is received by the receiving circuit 4. When the scan circuit 6 receives a scan instruction from the keyboard control circuit 6 when the power is turned on, it continues the scan operation until the power is turned off.

Next, an example of the operation of the keyboard control circuit 6 is shown in the key function information section 8.
This will be explained in relation to the control section 9 and the keyboard 2.

FIG. 2 shows the layout of the keyboard 2. As explained above, the scan circuit 3 outputs signals from YO to Yn, and when any key switch 1 is pressed, X.

A signal from Xm is output and received by the receiving circuit 4. The signal received by this receiving circuit 4 and scan 1
A matrix code generating circuit 5 generates a matrix code representing the position of the pressed key switch 1 using the signal from the gl path 3. The matrix code for the 0th key switch 1 in Figure 2 is X0YO1 and below.Similarly, the matrix code for the last key switch 1 is XmYn. The IJ code is output from the matrix code generation circuit 5.

3 and 4 are diagrams showing the storage format of the key function information stored in the key function information section 8. The information of one key consists of a data code and a function code indicating the classification of the function. The matrix code indicating the position of the second key switch 1 and the address where the corresponding key information is stored are stored so as to correspond to each other. FIG. 3 shows a state in which key function information is stored when the keyboard 2 is used for data entry.

FIG. 4 shows a state in which key function information is stored when the keyboard 2 is used exclusively for business purposes. Similarly, key function information for the keyboard 2 for other purposes can also be stored. These key function information are stored in the control unit 9.
is memorized by On the other hand, the keyboard control circuit 6 reads the function code of the key function information section 8 based on the matrix code outputted from the matrix code generation circuit 5, and determines the function of the pressed key switch 1 according to the function code. For example, in the case of FIG. 3, the function code is a, which indicates a function that prohibits simultaneous pressing of each key switch 1. In this case, when multiple matrix codes are output from the matrix code creation circuit 5,
All key operations that are pressed multiple times are invalid. In the case of Figure 4, the function code is 6. There are two types: O and 2 types. Each key switch 1 defined as function code 6 has a function that is allowed to be pressed simultaneously, and each key switch 1 defined as function code G has a function that cannot be pressed simultaneously. However, pressing the key switch 1 at the same time, which is defined as function code 6, indicates a permissible function. In this case, the keyboard control circuit 6 makes a determination according to the function code. The determination is made as described above, and only when the matrix code is valid, the data code is passed to the reading control section 9 as pressed key data.

The control unit 9 switches the key function information shown in FIGS. 6 and 4.
The key function information is defined in advance, and the control section 9 automatically switches the key function information when it is necessary to switch between the display section 10 and data processing with the host computer. If the key function information is defined so that the operator can forcibly switch the key function, the control unit 9 will switch if the operator presses the middle switch 1 corresponding to the key function.

【Effect of the invention〕

According to the present invention, one keyboard can be used as several types of keyboards with different functions, and these functions can be automatically switched, so (1) several types of keyboards are not required.

(2) No keyboard switching operation is required.

(3) Key functions can be easily changed without changing the keyboard.

There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a layout diagram of the keyboard surface, and Fig. 3 shows that the keyboard has key function information 7 Omatsu V ¥1 in which data entry is stored. . 1...Key switch 2...Keyboard 3
...Scan circuit 4...Receive circuit 5...
- Matrix code creation circuit 6...Keyboard control circuit 7...Keyboard control section 8...Middle function information section 9...Control section

Claims (1)

[Claims] 1. A keyboard consisting of a group of key switches, a keyboard control unit that detects which key switch in the key switch group has been pressed, and a keyboard control unit that receives and displays data from the keyboard control unit, and performs data processing with a host computer. In the terminal device, the terminal device includes a control section for performing the above operations, and a display section for displaying the data, and a key function information section for storing the key functions of the keyboard is provided, so that one keyboard can be used as several types of keyboards having different functions, A keyboard control method characterized by automatically switching functions.