JPH1020954A - Security system for personal computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system which can instantaneously and safely store data and information even if a personal computer is in the middle of an operation and which can easily execute restarting. SOLUTION: This system is constituted of a core storage medium 1 in which a core is stored and which can be carried, a reader/writer 2 and peripheral units incorporated in a personal computer 5. The cord storage medium 1 and the reader/writer 2 use the data exchange method of a contact-type and a non- contact-type and permit log-in by installing the precise cord storage medium 1 in the reader-writer 2 and permit log-out by removing it from the reader/ writer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security system for protecting data and images of a personal computer from others.

[0002]

2. Description of the Related Art Conventionally, there has been a security system in which a user of a personal computer is limited by setting a password from a keyboard or providing a mechanical key.

[0003]

The conventional device is normally effective only once when the power is turned on, and does not manage the change of the user during energization. Data could not be protected. In this case, when the work is temporarily interrupted by logging out or turning off the power, it is necessary to start up the system again after the protection of the file, which makes the operation complicated and time-consuming. In addition, in the case of a password, there is a problem that the user may not be aware that the password is used by others, in addition to the risk of being stolen.

[0004]

The present invention provides a portable code storage medium for storing a password, a reader / writer for reading the contents of the code storage medium, and software and hardware for controlling a personal computer and peripheral devices. When the authorized user installs the code storage medium in the reader / writer, the reader / writer reads the contents and gives an operation permission from the reader / writer to the system bus or the DMA controller of the personal computer, and the hard disk or the In the case of a keyboard, login is permitted by receiving an access signal from each controller. Also, when the user removes the code storage medium from the reader / writer, the reader / writer sends a control signal for stopping the operation to the personal computer or peripheral device, thereby shortening the operation stop of the CRT, the keyboard, the hard disk, the personal computer body, etc. Do it in time. The code storage medium may be used for other purposes such as an ID card for entering and leaving the room.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A security system for a personal computer according to the present invention comprises a portable code storage medium, a reader / writer, and various devices.

[0006] The form of the code of the code storage medium may be a mechanical one in which metal is processed by embossing or drilling, or an IC.
It is provided in an electrical form stored in memory or logic ICs, and has the appearance of a tag or card that can be easily carried. The interface for data exchange uses a board or connector. There is a contact type, a non-contact type using electromagnetic induction and light, and in the case of a non-contact type, it is composed of an antenna unit and a light receiving / emitting unit.In addition, both are composed of a driving power supply unit, control unit, etc. You.

When the reader / writer is of a contact type, the interface unit comprises a mechanical receiving unit and an electrical connector, a power supply unit, a signal conversion unit for converting a mechanical signal into an electric signal, a control unit and a memory. RF for formula
The unit includes an antenna or a light emitting / receiving unit, a power supply unit, a transmission signal control unit, a transmission / reception unit for amplifying and demodulating a signal, a control unit, a memory, and the like.

The reader / writer also reads data stored in the code storage medium, transfers data to the next optional device, and receives and writes a new code.

When an optional device connected to the reader / writer directly controls a personal computer and peripheral devices, a CPU, a memory, a CPU, a memory, and the like are provided on a control board which is built in the main body of the personal computer or can be incorporated in an expansion slot. In the form of providing a system control driver IC etc., or in the form of providing a reader between a keyboard and a personal computer or between a hard disk and a personal computer and directly managing the signals of the keyboard and the hard disk. Device driver software is incorporated into the device in the form of software, and a reader / writer is used by connecting it to the SIO of a personal computer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the present invention in an actual use state. An operator (6) places a card-type code storage medium (1) on a reader / writer (2) and a personal computer (5), a CRT. (4), the keyboard (7), etc. are operating normally. In the case of this example, as shown in FIG. 2, a non-contact electromagnetic induction system is used as a communication system with the code storage medium (1), and the exterior of the code storage medium (1) has high radio wave transparency. An antenna (9) made of plastics etc. that exchanges energy and data inside
It comprises a power supply (10), a memory (11) for storing data, and a control unit (12) for controlling signals. The exterior of the reader / writer (2) is made of a material having high radio wave transparency such as plastics, and an antenna (9), a transmission signal control unit for transmitting data, and a signal amplification and demodulation for the inside are used. The control board (3) consists of a receiving unit, a coder and a power supply unit. It mainly comprises a CPU for arithmetic processing, a power supply unit, a system controller for exchanging signals with the system bus of the PC main body, and the like. CP of control board (3)
A code having a hierarchical structure may be stored in the control software of U and used.

[0011]

The present invention is embodied in the form described above, and has the following effects.

Since the code storage medium is portable, it is easy to handle, and since it is in a physical form, it is easy to notice that it is stolen or lost. In addition, login is possible only by installing the code storage medium in the reader / writer,
Logout etc. just by removing from reader / writer,
The operation can be easily stopped.

The method of transferring data between the code storage medium and the reader / writer includes a contact type, a non-contact type, and the like.
Since various existing data communication methods can be adopted, it becomes possible to link with a system requiring another ID function, for example, entry / exit management.

When the control is performed through the control board, the operation on the computer directly affects the hardware of the computer, so that the screen is erased and restarted reliably and quickly.

By providing the reader / writer with not only the reading function but also the writing function, it is possible to provide a data exchange function. Therefore, even if the code may leak to the outside, a protective measure can be easily established.
Also, by using a hierarchical code, in an emergency,
It is also possible to allow the use of others at higher ranks.

With the system using the code storage medium, the user can be specified and the work can be interrupted in real time.

Since the code is stored in the code storage medium, the code cannot be read by a third party.

[Brief description of the drawings]

FIG. 1 is a diagram showing the usage status of an embodiment.

FIG. 2 is a system block diagram of an embodiment.

[Description of Signs] 1 Code storage medium 2 Reader / writer 3 Control board 4 CRT 5 Personal computer 6 Operator 7 Keyboard 9 Antenna 10 Power supply 11 Memory 12 Control unit

Claims (8)

[Claims] 1. A code storage medium (1) mainly composed of a portable code storage medium (1) of a card size or the like and a reader / writer (2) and storing a correct code is stored in the reader / writer (2). For personal computers that allow security when installed above, allow login and allow the personal computer (5) to operate normally, and when removed, stop the operation of the personal computer (5) and peripheral devices. Security system. 2. A portable code storage medium having a card size or the like (1), a reader / writer (2), electrically connected to the reader / writer (2), and incorporated in a personal computer (5) body. Alternatively, a code storage medium (1) mainly composed of a control board (3) attachable to an expansion slot and storing a correct code is used as a reader / reader.
When installed on the writer (2), login is allowed and the personal computer (5) operates normally. When the personal computer (5) is removed, the operation of the personal computer (5) and peripheral devices is stopped, thereby enabling the security function. A personal computer security system to demonstrate. 3. A portable code storage medium such as a card size (1) and a reader / writer (2) electrically connected and installed between a keyboard (7) and a personal computer (5). And the code storage medium (1) on which the correct code is stored is the reader / writer (2)
A security system for a personal computer that permits input of the keyboard (7) when installed on a personal computer, allows the personal computer (5) to operate normally, and rejects input from the keyboard (7) when removed. 4. A portable code storage medium (1) such as a card size and a reader / writer (2) electrically connected and installed between a hard disk and a personal computer (5). When the code storage medium (1) in which the code is stored is placed on the reader / writer (2), access to the hard disk is permitted, and the personal computer (5) operates normally. Security system for personal computers that deny access to 5. A code storage medium (1) mainly comprising a portable code storage medium (1) of a card size or the like, a reader / writer (2) and device driver software, and storing a correct code. -A security function that allows login and allows the personal computer (5) to operate normally when installed on the writer (2), and stops operation of the personal computer (5) and peripheral devices when removed. A security system for personal computers that demonstrates 6. A non-contact method using a transmission medium such as an electromagnetic coupling, an electromagnetic induction method, or an optical communication, or a mechanical or electric method for exchanging signals between the code storage medium (1) and the reader / writer (2). The security system for a personal computer according to claim 1, wherein the contact system uses either a magnetic or a magnetic contact method. 7. At the time of transmission / reception of a signal between the code storage medium (1) and the reader / writer (2), data inside the code storage medium (1) is read and, at the same time, it is determined that the use is permitted, and Claim 1 or Claim 2 or Claim 3 or Claim 4 or Claim 5 or Claim 6 having a function that can be replaced with a new code.
Security system for personal computers. 8. The code storage medium (1), wherein the code storage medium (1) is also used as an ID medium other than the security of the personal computer (5). The security system for a personal computer according to claim 7.