JPH03198118A - Keyboard device - Google Patents

Abstract

PURPOSE:To attain an optional setting operation via a standard keyboard by setting previously the valid or invalid stage of various types of key information to a storage means in a desired pattern, and transferring only the valid key information to a work station. CONSTITUTION:A storage means 11 stores the information which shows the valid or invalid state of various types of key information produced with push of keys 13 of a keyboard 1. A transfer control means 11 refers to the informa tion the means 11 to recognize the valid or invalid state of the received key information, then transfers only the valid key information to a work station 2. Therefore only the valid key information is transferred to the station 2 as long as the valid or invalid stage of various types of key information is set to the means 11 in a desired pattern. Thus it is possible to attain an optional setting operation via a standard keyboard without modifying the keyboard 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention) (Industrial Application Field) The present invention relates to a keyboard device installed in a workstation system.

(Prior Art) In a keyboard device installed in a workstation, there are many data keys and function keys on the keyboard that are not used for user work, such as keys used during maintenance.

Therefore, at the user's request, the key tops are covered or a key lock damper is installed to prevent keys from being pressed.

However, installing the key top cover and key lock damper requires modification of the keyboard device housing, and since the keys that are not used vary depending on the user, the keys must be custom-made for each user, creating management difficulties.

(Problems to be Solved by the Invention) As described above, in the conventional keyboard device, it is necessary to take measures for each user, which causes difficulties in management.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to provide a keyboard device that allows a standard keyboard to respond to arbitrary settings regarding the enable/disable of keys. There is a particular thing.

[Structure of the invention]

(Means for Solving the Problems) The keyboard device of the present invention includes a storage means for storing information indicating validity or invalidity of various key information generated by pressing each key of the keyboard, and and transfer control means for recognizing whether the key information is valid or invalid by referring to information in the storage means and transmitting the key information to the workstation only when the key information is valid. ing.

(Function) According to the present invention, if the storage means is set to enable or disable various types of key information in a desired pattern, only the valid key information will be transferred to the workstation. etc. (arbitrary settings can be made using the standard keyboard.

(Example) Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is an internal block diagram of a keyboard device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the processing content of key information transfer control by the CPU, and FIG. 3 is a workstation in which the keyboard device is installed. FIG. 2 is a block diagram of the system.

First, in FIG. 3, 1 is a keyboard device, 2 is a work station, and 3 is a main body as a CPU for the entire system. The workstation 2 is connected to the system main body 3 via a line 4 and controls the interface between the keyboard device 1 and the system main body 3. Therefore, key information from the keyboard device 1 is first transferred to this workstation 2, and then transferred from this workstation 2 to the main body 3 via the line 4. Conversely, information from main unit 3 is transferred to workstation 2 via line 4,
The information is transferred from this workstation 2 to the keyboard device 11.

As shown in FIG. 1, the keyboard device 1 includes a CPU II
and a decoder 12, and key switches 3, 3, corresponding to various keys on the board. ...and is provided.

CPUI 1 is a one-chip microcomputer that includes ROM and RAM. This RAM constitutes a storage means for storing information indicating validity or invalidity of various key information generated by pressing each key on the keyboard. That is, this RAM stores information that displays valid key information among various types of key information. Therefore, even if this does not apply, it is also displaying something invalid. This valid key information is
is generated from the CPUI through workstation 2.
given to I. The CPU II sets the sent valid key information in its RAM.

When the CPU 11 is not processing input key information, it executes a key press waiting routine (not shown). In other words, a scan signal is periodically output to the decoder 12 from the P terminal. The decoder 12 decodes this scan signal and uses the key switches 13.13.・・・
・Scan.

Then, the switch information is sent to C through the return line.
It is input to the DB input terminal of PUII. This switch information is read by the CPU 11 and developed as a key code.

When a key is pressed, the CPU 11 refers to the RAM and saves the input key information and the RAM, as shown in FIG.
It is determined whether the input key information is valid by comparing it with the valid key information of (step 521).

As a result of this judgment, if the key code is valid, the key code is transferred to the workstation 2 (step 522).
).

If it is determined in step S21 that the key information is invalid, the key information is invalidated without being transferred, and the process returns to the key press waiting routine.

As described above, according to this embodiment, the CPU II RAM
If valid key information is set in , only the valid key information will be transferred to the work stage custom, so any settings can be made using the standard keyboard without requiring modification of the keyboard.

〔Effect of the invention〕

As explained above, according to the present invention, if the validity/invalidity of various types of key information is set in the storage means in a desired pattern, only the valid key information is transferred to the workstation. Arbitrary settings can be made using a standard keyboard without the need for modification, and management difficulties can be solved.

[Brief explanation of drawings]

FIG. 1 is an internal block diagram of a keyboard device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the processing content of key information transfer control by the CPU, and FIG. 3 is a workstation in which the keyboard device is installed. FIG. 2 is a block diagram of the system. DESCRIPTION OF SYMBOLS 1...Keyboard device, 2...Workstation, 11...CPU, 12...Decoder, 13...
key switch.

Claims (1)

[Scope of Claims] Storage means for storing information indicating validity or invalidity of various key information generated by pressing each key on a keyboard; and upon receiving the key information, storing the information in the storage means. A keyboard device comprising: transfer control means that refers to and recognizes whether the key information is valid or invalid, and transfers the key information to a workstation only when the key information is valid.