JPH1115562A - Personal computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce security for a personal computer. SOLUTION: The case of a computer mainbody 1 is not opened when an IC card 5 is mounted on a slot 4. The processing routine 14 of an ROM 2 collates a password 15a in a PC 6 with the password 15b of the IC card 5. The password 15c from a keyboard 18 is inputted at the time of coincidence, an ejecting switch 11 is operated when the password 15c coincides with the password 15a and the IC card 5 is discharged from the slot 4. Unless the IC card 5 is mounted, a power interrupting switch 10 is operated and a power source 23 is turned off unless the password 15a coincides with the password 15b or unless the password 15a coincides with the password 15c. Thus, access to an internal storage medium 3 is limited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a personal computer having a security function.

[0002]

2. Description of the Related Art In recent years, personal computers (hereinafter, referred to as personal computers).
In the field of PCs), the pursuit of small size, light weight, portability, etc. has led to the remarkable spread of laptops, notebooks, etc. in place of desktops. ,
Since a hard disk and the like can be detached from the system, the risk of theft of the PC and the components themselves has increased. Therefore, data security measures (manipulation of information such as programs and data in a computer system without permission to prevent destruction, unauthorized use, or leakage to the outside) are a major issue.

Therefore, as a PC having such a security function, for example, a PC described in Japanese Patent Application Laid-Open No. 5-94255 is known. As shown in FIG. 8, the PC includes a slot 4 of an IC card 5 which can be removed from the computer main body 1 and a ROM 2 having a processing routine in which the computer itself does not start unless the IC card 5 is inserted in the slot 4. By providing such a device, access to the storage medium (hard disk) 3 inside the main body by a person other than a specific person is restricted.

[0004]

However, as a security measure in the above-mentioned conventional PC, there is a problem that it is still incomplete. This is because the housing 7 of the computer main body 1 is usually composed of an upper housing 7a and a lower housing 7b as shown in FIG. When the housing 7 is opened by removing the internal storage medium 8, the internal storage medium 3 can be easily removed, and when the removed internal storage medium 3 is mounted on another PC, access to the storage medium 3 becomes possible. It is.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is an object of the present invention to further enhance a security function and prevent a data theft or the like from occurring. To provide a computer.

[0006]

In order to achieve the above object, the present invention provides a computer main body comprising an upper housing and a lower housing, wherein the upper housing and the lower housing are provided with a password. Is configured to be inseparable in a state where an IC card that stores therein is inserted into a slot. In the present invention, when the IC card is mounted in the slot, the upper housing and the lower housing cannot be separated. For this reason, if the IC card is mounted, the internal storage medium cannot be taken out, which enhances security.

Further, the present invention detects whether or not an IC card is mounted, and when an IC card is mounted, a password stored in the IC card and a password stored inside the computer main body are detected. If the passwords match, a window prompting the user to enter a password from the keyboard is displayed on the screen, and the password entered from the keyboard is compared with the password stored in the IC card and the computer main body. It is characterized in that the processing routine is provided in a ROM. In the present invention, the ROM compares the password of the IC card with the password of the computer main body, and when they match, prompts the entry of a password by a keyboard. A processing routine for collating with the password is performed. For this reason, even if the IC card is left unattended, only the user can access the internal storage medium, which enhances security.

The present invention further comprises an eject switch for ejecting the IC card from the slot to the outside when the processing routine confirms that the passwords entered from the IC card, the inside of the computer main body and the keyboard match. It is characterized by. In the present invention, the eject switch operates when the password input by the IC card matches the password input by the personal computer and the operator, and releases the locked state of the IC card. Therefore, the IC card is ejected from the slot. For this reason, even if the IC card is left attached, only the user himself / herself can eject the IC card and cannot access the internal storage medium, thereby enhancing security.

Further, according to the present invention, the processing routine may be an IC.
When confirming that the card is not inserted in the slot, confirming that the password stored in the IC card does not match the password stored in the computer body, or inputting the password stored in the computer body to the screen A switch is provided for turning off the power when it is confirmed that the passwords of the keyboard do not match. In the present invention, when the IC card is not mounted in the slot of the computer body,
When the password stored in the IC card and the password stored in the computer do not match, or when the password stored in the computer and the password of the keyboard input on the screen do not match, the power is cut off by a signal from the processing routine. . For this reason, even if the IC card is left unattended, only the user can access the internal storage medium, which enhances security.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 shows a P according to the present invention.
FIG. 2 is a perspective view of a computer main body,
FIG. 3 is an enlarged perspective view of a main part of the computer main body, and FIG. 4 is a perspective view of a slot. In these figures, the notebook PC 6 includes a computer main body 1, a screen (display) 16, a keyboard 18, and a password 15 therein.
b stored in the IC card 5. The processing routine 14 and the password 1 are stored inside the computer body 1.
5a, an internal storage device 3 (hard disk) storing an operating system (OS) and programs, a power supply 23, and a power cutoff switch 10
, A slot 4 and an eject switch 11 for ejecting the IC card 5.

The housing 7 of the computer body 6 comprises an upper housing 7a and a lower housing 7b, which are integrally fixed by a plurality of screws 8. However, in the present invention, the case 7 cannot be opened unless the eject switch 11 is operated and the IC card 5 is pulled out from the slot 4 even if the screw 8 is removed for security measures. I have. Specifically, an L-shaped bent piece 12 is provided inside the upper housing 7a,
b, an inverted L-shaped bent piece 13 is provided, and these bent pieces 12, 13 are alternately arranged while being shifted in the insertion direction of the IC card 5, and the horizontal portion of the bent piece 12 of the upper housing 7a is formed. Is positioned in the lower housing 7b, and the horizontal portion of the bent piece 13 of the lower housing 7b is positioned in the upper housing 7a, so that the IC card 5 inserts the space surrounded by the bent pieces 12 and 13. Slot 4 to be used. Therefore, the IC card 1
2 is inserted, the horizontal portion of the bent piece 12 is located below the IC card 5 and the horizontal portion of the bent piece 13 is located above, so that even if the screw 8 is removed, The housing 7a and the lower housing 7b are not separated from each other because the IC card 5 becomes an obstacle. Here, in the present embodiment, the upper case 7a and the lower case 7b cannot be separated from each other by inserting the IC card 5 between the bent pieces 12 and 13, but the present invention is not limited to this. It is also possible to prevent the housing 7 from being opened by providing an appropriate lock mechanism inside 7 and operating the lock mechanism by the IC card 5 inserted into the slot 4. The slot 4 is open on one side of the housing 7.

FIGS. 5A to 5D are diagrams showing a locking mechanism between the eject switch 11 and the IC card 5. FIG.
When the IC card 5 is inserted into the slot 4, the locking mechanism 2
2 locks in the mounting position. This locking mechanism 22
Is a plate 19 that is provided in the slot 4 so as to be able to move forward and backward and is moved inward of the slot 4 by the IC card 5.
A tension coil spring 20 for urging the plate 19 in the return direction, and a hook 21 for locking the plate 19 at a mounting position when the IC card 5 is inserted into the slot 4 by a predetermined amount. When the ejection switch 11 is operated when the IC card 5 is ejected,
The lock state of the plate 19 is released. The eject switch 11 is turned on and off by the processing routine 14 of the ROM 2.

When the power cutoff switch 10 is operated by the processing routine 14 of the ROM 2 as shown in FIG.

Next, the operation of the present invention will be described with reference to FIGS. When the power supply 23 of the PC 6 is turned on, the processing routine 14 in the ROM 2 checks whether or not the IC card 5 is mounted in the slot 4 (steps A1 and A2). If the IC card 5 is mounted, the password 15b stored in the IC card 5
Is read (step A3), and then the password 15a stored in the ROM 2 is read (step A3).
4). Check the password 15a and the password 15b,
Check whether they match (steps A5 and A5).
6). If they match, the password 15 is displayed on the screen 16.
A window 17 for prompting the user to input c is displayed (step A).
7), password 15c input from keyboard 18
Is read (step A8). Entered password 1
The password 5c is compared with the password 15a stored in the ROM 2 to check whether they match (steps A19 and A10). If they match, the eject switch 11 is operated to release the locked state of the IC card 5 by the locking mechanism 22, and the IC card 5 is ejected from the slot 4 (step A11). After that, the internal storage medium 3 is accessed (step A12).

The discharging operation of the IC card 5 will be described with reference to FIG. When the IC card 5 is mounted in the slot 4 (c), the eject switch 11 is kept in the ON state, and the hook 21 locks the plate 19. In this state, when the eject switch 11 is turned off by a signal from the processing routine 14, the hook 21 is released from the eject switch 11, so that the locked state of the plate 19 is released. As a result, plate 1
9 returns to the original position by the force of the tension coil spring 20 (a), and discharges the IC card 5 from the slot 4 to the outside.

In FIG. 1 and FIG.
When the C card 5 is not mounted (Steps A1 and A2), the power cutoff switch 10 is operated by the processing routine 14 of the ROM 2 to turn off the power supply 23 (Step A).
13). The password 15 stored in the ROM 2
Similarly, when the password a does not match the password 15b stored in the IC card 5 (steps A5 and A6) and when the password 15c input from the keyboard 18 does not match the password 15a stored in the ROM 2, the power cutoff switch is also used. Then, the power supply 23 is turned off (step A13). Therefore, the information in the internal storage medium 3 cannot be accessed, and theft of the information can be prevented.

[0017]

As described above, according to the personal computer of the present invention, when the IC card is inserted in the slot, the housing cannot be opened even if the computer itself is left unattended. Therefore, the internal storage medium is not removed and the security can be enhanced. Further, according to the present invention, even if the computer is left in a state where the IC card is mounted, the information on the internal storage medium cannot be accessed unless the passwords match, thereby enhancing security. The reason is that if at least one password entered from the keyboard matches the password stored in the IC card and the computer, the power is turned off.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a PC according to the present invention.

FIG. 2 is a perspective view of a computer main body.

FIG. 3 is an enlarged perspective view of a main part of a computer main body.

FIG. 4 is a perspective view of a slot.

5A is a side view showing an eject switch and a locking mechanism, FIG. 5B is a plan view, FIG. 5C is a view showing a state in which an IC card is inserted, and FIG. It is a figure.

FIG. 6 is a diagram for explaining the operation of the power cutoff switch.

FIG. 7 is a flowchart of a processing routine.

FIG. 8 is a diagram illustrating a configuration example of a security function according to the related art.

FIG. 9 is a perspective view showing a structural example of a housing of a conventional PC.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Computer main body, 2 ... ROM, 3 ... Internal storage medium, 4 ... Slot, 5 ... 1C card, 6 ... Personal computer, 7 ... Case of computer body, 7a ... Upper case, 7b ... Lower case, 8 ... Screw, 10 ... Power cutoff switch, 11 ... Eject switch, 12, 13 ... Bent piece, 14 ... Processing routine, 15a ... Password stored in ROM, 15b ... Password stored in IC card, 15c ... Password entered from the keyboard, 16 ... screen, 17 ... window, 18 ... keyboard, 19 ... plate, 20 ... tension coil spring, 21 ...
Hook, 22 locking mechanism, 23 power supply.

Claims (4)

[Claims] 1. A computer housing comprising an upper housing and a lower housing, wherein the upper housing and the lower housing are mounted in a state in which an IC card storing a password therein is mounted in a slot. A personal computer characterized by being inseparable. 2. The personal computer according to claim 1, wherein whether or not an IC card is mounted is detected, and when the IC card is mounted, a password stored in the IC card and stored in the computer main body. The passwords that have been entered are compared. If the passwords match, a window prompting the user to enter a password from the keyboard is displayed on the screen, and the password entered from the keyboard and the password are input.
A personal computer characterized in that the ROM has a processing routine for collating with a C card and a password stored inside a computer main body. 3. The personal computer according to claim 2, wherein the processing routine confirms that the passwords input from the IC card, the inside of the computer main body and the keyboard match, and ejects the IC card from the slot to the outside. A personal computer comprising a switch. 4. The personal computer according to claim 2, wherein when the processing routine confirms that the IC card is not inserted in the slot, the password stored in the IC card does not match the password stored in the computer main body. A personal computer comprising a switch for turning off the power when confirming that the password stored in the computer main unit does not match the password of the keyboard input on the screen.