JPH02280217A - Keyboard having key locking mechanism - Google Patents

Abstract

PURPOSE:To eliminate a necessity to go to the installing place of a computer system main body by executing a key lock by means of a switch provided to a keyboard main body, inputting a code according to a guidance displayed on a display part provided to the keyboard main body and, only thereby, releasing the key lock. CONSTITUTION:When a mode switch 2 is operated, an output from keyboard 1 main body to an external computer system 4 main body is inhibited. The guidance of a method for releasing a key lock mode is displayed on a display means 3, and when the code inputted by an operator coincides with the contents stored in a non-volatile memory, further, the guidance to inquire the existence/ absence of desire to change the code for the key lock mode release at a next time to the operator is displayed. The keyboard has a control part to input the code to the non-volatile memory, to update the stored contents of the non- volatile memory, and thereafter, to release the key lock mode when the operator has the desire to change the code and the new code is inputted. Thus, by the keyboard itself operated by the operator, the key lock and the release can be executed.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a keyboard used in an information processing system, etc., and in particular to a keyboard with a key lock mechanism that can prohibit use by anyone other than a specific operator if necessary. Regarding.

(Prior Art) Conventionally, this key lock mechanism has been attached to the main body of the computer system.

FIG. 5 is an explanatory diagram showing a conventional key lock mechanism.

In FIG. 5, a signal input from the keyboard 7 is prohibited from being input to the computer by operating a key lock switch 6 provided on the computer system body 5. Note that 8 is a display.

(Problems to be Solved by the Invention) In the conventional keyboard lock mechanism described above, the key for key locking and the switch linked thereto are attached to the computer system main body 5, so that the computer system main body 5 is not immediately accessible to the operator. The disadvantage is that it is extremely troublesome to lock and release the key if it is not within reach.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate such drawbacks and provide a keyboard with a key lock mechanism that allows an operator to lock and release keys using the keyboard itself.

(Means for Solving the Problems) In order to achieve the above object, the keyboard with a key lock mechanism of the present invention comprises a keyboard main body, a mode changeover switch (hereinafter referred to as a mode switch) 2, a display means 3,
Equipped with a non-volatile memory, when the mode switch 2 is operated, a key lock mode is entered in which output from the keyboard main body l to the external computer system main body 4 is prohibited, and a guide on how to release the key lock mode is displayed on the display means 3. is displayed, the operator enters the password according to the display, and when the entered password matches the content stored in the non-volatile memory, the operator is further prompted to cancel the key lock mode next time. A message will be displayed asking if you have any intention to change your password, and if you indicate that you do not have any intention to do so,
If the key lock mode is immediately released and the operator intends to change the password, and a new password is entered, the password is input into the non-volatile memory, the contents stored in the non-volatile memory are updated, and then - The configuration includes a control unit that releases the lock mode.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an external view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing how the embodiment of FIG. 1 is used.

As shown in FIG. 1, this embodiment has a keyboard main body equipped with a mode switch 2 for switching the normal processing mode to a key lock mode, and a liquid crystal display as a means for displaying instructions for the operator to release the key lock or change the password. It includes a display 3, a control section (not shown), and a nonvolatile memory.

The keyboard main body l is connected to the computer system main body 4 as shown in FIG. 2, but the combiator main body 4 does not require a key lock switch for locking the keys to prohibit input from the keyboard main body l.

FIG. 3 is a flowchart showing an example of the operation of the control section of the embodiment shown in FIG.

As shown in FIG. 3, when the mode switch 2 is pressed after step 2, the control section generates an interrupt from the normal process 1 inside the keyboard, and displays the LCD screen 3 as shown in the dotted line in FIG. In the display location 10 shown in FIG. Until the number is input, notification to the computer system body 4 is prohibited no matter which key is pressed.

When the operator inputs a PIN number, the input PIN numbers are sequentially displayed in the display area ff1ll shown surrounded by dotted lines in Figure 4, and are compared with the PIN stored in advance in a non-volatile memory (not shown). 23) If the result of the verification is -, a message B asking for the intention to change the password, such as "Do you want to change the password?", is displayed at the display location 10 (step 24).

If the operator presses the key "1NO" after seeing this display, this is displayed at the display location 1 and the process returns to normal processing (in the case of @NO" at step 25). Then, the key lock is released and the key is turned off. If the operator manually presses the key "YE8" (in the case of @YES' in step 25), this is displayed.After displaying location 1, the front scaffold l9T1
"Please enter your PIN in Guide 1" is displayed in 0 (
Step 26). When the operator enters a new PIN after seeing this display, the table 11Kff is displayed sequentially, and when all the predetermined digits of the PIN have been input, this is input into a non-volatile memory (not shown) and the information stored until now is stored in the non-volatile memory. After storing it in place of the PIN number, return to normal processing (step 27)
. In this way, the password is changed and the key lock is released.

(Effects of the Invention) As explained above, the present invention locks the keys using a switch provided on the keyboard body, and locks the keys by simply entering the Kuzu PIN according to the instructions displayed on the display section provided on the keyboard body. Since the keys can be unlocked, the key lock can be locked and unlocked simply by operating the keyboard, without having to go to the installation location of the computer system itself.

[Brief explanation of drawings]

FIG. 1 is an external view showing an embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of a usage state of the embodiment of FIG. 1. FIG. 3 is a flowchart showing the operation of the control section of the embodiment shown in FIG. FIG. 4 is an explanatory diagram showing the display location of the display means of the embodiment of FIG. 1. FIG. 5 is an explanatory diagram showing an example of a conventional keyboard key rotation method. 1...Keyboard body 2...Mode switch 3...Liquid crystal display 4.5...Computer system body 6...Key lock switch 7...Keyboard 8...Display 10.11... Display locations 21 to 27...ttt++W section operation steps Patent applicant: NEC Corporation Patent attorney Inoro Juga 3 Figure (1 Tani Ri), +2 Figure

Claims (1)

[Claims] The keyboard body includes a mode changeover switch, a display means, and a nonvolatile memory, and when the mode changeover switch is operated, a key lock mode is set in which output from the keyboard body to an external computer system body is prohibited. , when the display means displays guidance on how to release the key lock mode, the operator inputs a password according to the display, and the input password matches the content stored in the nonvolatile memory; In addition, a message is displayed asking the operator whether he or she intends to change the password to release the key lock mode next time.If the operator inputs that he or she does not intend to do so, the key lock mode is immediately released and the operator is prompted to do so. If there is an intention to change the password and a new password is input, the controller includes a control unit that releases the key lock mode after inputting the password into the non-volatile memory and updating the stored contents of the non-volatile memory. Keyboard with key lock mechanism.