JPH07191794A - Security system in pen-input computer - Google Patents

Abstract

PURPOSE:To organize a security system which can be easily managed in comparison with a conventional password system by providing a security environment for processing only an input from a proper (or specific) input pen device and taking a measure such that a proper user carries the proper input pen device, etc. CONSTITUTION:Plural security bits are additionally set to control transmission data from the input pen device 1 of a pen input computer. A control circuit 3 for discriminating a security bit being different at every input pen device is provided in a personal computer mainbody 3. The security bit added in control information which is received by a control information receiving circuit 4 is compared with the previously stored security bit so that an input/output device or a storage device which is connected to the computer mainbldy is permitted to be used only when coincidence is recognized in a discriminating circuit 5.

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 a pen input computer suitable for use in a pen input computer having an electromagnetic induction pen.

[0002]

2. Description of the Related Art In the field of personal computers, a laptop type and a notebook type, which are small in size and light in weight and convenient for carrying, have become mainstream and have spread in place of the conventional disc type. The data protection of such a personal computer (hereinafter, simply referred to as security) is mainly performed by comparing a plurality of bits stored in a memory or a register backed up by a power supply with a password input from a keyboard. It was That is, the use of the data is permitted only when the passwords are compared with each other.

On the other hand, recently, a light, thin, short, and small personal computer, that is, a portable pen input computer, which has an integrated structure of a display device and an input device and has improved operability, has become popular. In this type of pen input computer, an electromagnetic induction pen is used as an input pen.

[0004]

The conventional security function in the personal computer described above is one in which security is lost when the password is compromised, and since a plurality of users who know the password are allowed to exist, permission is granted. Users who don't have coexistence can coexist and lack reliability in data protection.

The present invention has been made in view of the above circumstances, and is a security system particularly suitable for use in a pen input computer using an electromagnetic induction input pen, and a plurality of security is applied to data transmitted from the input pen. Unique (or specific) by adding a bit and providing a security bit discrimination circuit in the personal computer body
By providing a security environment in which only the input from the input pen device is processed, and by taking measures such as having a unique user carry the unique input pen device, it is easier to manage than the conventional password method. The purpose is to provide a security system.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a security bit is added to control transmission data generated by an input pen device, and a security bit predetermined for each input pen device is provided in a computer body. It is a security system in a pen input computer that permits the use of the computer by comparing. The pen input computer is an input pen device that supplies control information such as position to the computer main body, and at least one security bit is added to the input pen device together with the position information to generate and output to the computer main body. Control information transmitting circuit, a control information receiving circuit in the computer body for receiving control information transmitted by the control information transmitting circuit, and a control information receiving circuit in the computer body for receiving control information in the control information receiving circuit. A discriminating circuit for discriminating a match by comparing the included security bit with a security bit stored in advance, and an input / output device in the computer body, which is connected to the computer body only when the discriminator circuit confirms the coincidence. Alternatively, it is configured with a control circuit that permits the use of the storage device.

[0007]

According to the present invention, a plurality of security bits are additionally set in the control transmission data from the input pen device of the pen input computer. Further, the personal computer main body is provided with a control circuit for discriminating the security bit different for each input pen device. Use of an input / output device or storage device connected to the computer only when the security bit contained in the control information received by the control information receiving circuit is compared with the security bit stored in advance, and a match is confirmed by the discrimination circuit Is allowed.

Thus, the unique (or specific) input pen device and the corresponding unique (or specific) personal computer main body provide security for the purpose of protecting data from anyone other than the unique (or specific) user. The function can be realized.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

In the drawing, reference numeral 1 is an input pen device, which is used for inputting control information such as position to the personal computer main body 3. Reference numeral 2 is a control information transmission circuit provided in the input pen device 1, and transmits a plurality of security bits as control information together with position information and the like.

Reference numeral 3 is a main body of a personal computer, which includes a pen input device 1. Reference numeral 4 is a control information transmission circuit provided in the personal computer main body 3, and receives the control information transmitted from the control information transmission circuit 2 of the pen input device 1.

Reference numeral 5 is a discriminating circuit provided in the personal computer main body 3, and compares a plurality of security bits contained in the control information received by the control information receiving circuit 4 with the security bits stored in advance in the discriminating circuit 5. Then, it is determined whether or not they match.

Reference numeral 6 is a control circuit (I / M control circuit) for various input / output devices and a storage device that make up a personal computer, and is not shown only when the comparison circuit 5 determines that a plurality of security bits match. Instructing various I / O devices and storage devices to permit operation.

The operation of the embodiment of the present invention will be described below.

When the input pen device 1 transmits position information and the like to the personal computer main body 3, the control information transmission circuit 2 adds a plurality of security bits different for each input pen device to the transmission data and the personal computer. Send to the main body 3.

The control information receiving circuit 4 receives this, and the discriminating circuit 5 compares a plurality of security bits contained in the transmission data with the security bits stored in advance in the discriminating circuit 5.

Here, if a match is confirmed, the transmission data is sent to the control circuit (I / M control circuit) 6 of the various input / output devices and the storage device for processing, and if there is no match, the transmission data is processed. The protection function of data is realized without being performed.

Although the present invention has been described by exemplifying only the pen input computer as an embodiment, the present invention is not limited to this, and is limited to pen input of various devices having an electromagnetic induction input pen. It can be applied to the realization of the security function in the information equipment of.

[0020]

As described above, according to the present invention, a plurality of security bits are added to the data transmitted from the input pen, and the personal computer main body is provided with the security bit discriminating circuit. ), It is possible to provide a security environment in which only the input from the input pen device is processed, and by taking measures such as carrying a unique (or specific) user with a unique input pen device, It is possible to provide a security system that is easier to manage than the system. As a result, the following effects can be obtained.

(1). Since it responds only to the unique (or specific) input pen device, there is no risk of the password being seen through the conventional password input method, and the unique (or specific) user can use it as a normal writing instrument. The security effect can be provided by simply carrying the input pen device with ease.

(2). Since it is possible to carry it as if it is a writing instrument with just the input pen device, the user can operate it without special awareness of the existence of a security system. Can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an exemplary embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pen device for input, 2 ... Control information transmitting circuit, 3 ... Personal computer main body, 4 ... Control information receiving circuit, 5 ...
Discrimination circuit 6, control circuit for input / output device and storage device (I
/ M control circuit).

Claims (2)

[Claims] 1. A security bit is added to control transmission data generated by an input pen, and a computer body compares the security bit with a predetermined security bit for each input pen used. A security system for a pen input computer, which is characterized by permitting / prohibiting use. 2. An input pen device for supplying control information such as position to a computer main body, and at least one security bit is added to the input pen device together with the position information and output to the computer main body. A control information transmitting circuit, a control information receiving circuit in the computer body for receiving control information transmitted by the control information transmitting circuit, and a security included in the control information received in the control information receiving circuit in the computer body A discriminating circuit for comparing the bit and the security bit stored in advance to discriminate the coincidence, and an input / output device or a storage device in the computer body, which is connected to the computer body only when the coincidence is confirmed by the discriminating circuit And a control circuit for permitting the use of a pen input computer. Security system to open.