JP2001067321A - Communication system, communication equipment and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably restricting communication when data are transmitted by means of communication equipments by judging whether to permit communication between a first communication equipment and a second communication equipment based on the first information. SOLUTION: A personal computer 102 transmits the data transferring request of information for designating selected data desired to transfer, data required for it, etc., and fingerprint data obtained by extracting the feature point of a registered fingerprint, to a portable terminal 101. At the time of receiving the data transferring request, from the computer 102, the terminal 101 judges whether the fingerprint data sent with the data transferring request matches with fingerprint data registered in the terminal 101. Then when the fingerprint data matche with the fingerprint data registered in the terminal 101, data designated to the computer 102 are transmitted to the computer 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system, a communication device, and a control method thereof.

[0002]

2. Description of the Related Art Conventionally, data is mutually transferred between a portable terminal such as an electronic organizer and a data processing device such as a personal computer by using a serial communication line such as RS232C. That is, a communication cable is connected between the mobile terminal and the personal computer, the mobile terminal is set to the communication mode, and data from the mobile terminal is stored in the memory of the personal computer by the communication software activated in the personal computer. Uploading and downloading data from personal computers to mobile terminals.

On the other hand, passwords, ID cards, and IC cards have been used as measures to prevent unauthorized use of personal computers such as notebook personal computers and to allow / disallow communication between devices. As a result, the password becomes unusable, or the password is easily known, and the password is easily used by others. Also, in the case of ID cards and IC cards, there is a problem that the data in the card is read, copied, and illegally used by others.

As a means for solving this problem,
A personal verification system using fingerprints, which have two major characteristics, "everyone is the same" and "everlasting the same" has been proposed. At present, PC cards and fingerprint authentication units with a built-in fingerprint authentication function that can be connected to personal computers such as notebook computers are gradually being commercialized, so that unauthorized use of personal computers can be restricted by performing fingerprint authentication. It has become.

[0005] Currently, as a fingerprint authentication technique, there is known a method of recognizing a fingerprint pattern of a fingerprint, storing the fingerprint pattern, and comparing the fingerprint pattern with an input fingerprint pattern to perform individual verification. Have been.

[0006]

In a conventional communication system for performing data communication between a portable terminal and a personal computer as described above, the use of the portable terminal itself and the use of the personal computer itself cannot be restricted. However, when data is communicated between a portable terminal and a personal computer, no restrictions are imposed.

Therefore, if the portable terminal and the personal computer can be used, the data in the portable terminal can be easily converted to the personal computer by the software of the personal computer.
A problem that data in a mobile terminal or data in a personal computer can be easily used because uploading to a computer memory or data in a personal computer can be easily downloaded to a mobile terminal. There was.

[0008] It is an object of the present invention to provide certain restrictions when data is communicated in a communication device.

It is another object of the present invention to prevent leakage of data in a device such as a portable terminal or a personal computer that can communicate.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a registration means for transferring first information registered in a first communication device to a second communication device for registration. When,
Based on the information registered by the registration unit and the first information registered in the first communication device, the first
A communication device comprising: a determination unit configured to determine whether to permit communication between the communication device and the second communication device.

[0011] Further, a registration unit for registering first information registered in the first communication device transferred from the first communication device, and the first information registered by the registration unit is stored in the first communication device. There is provided a communication device having transmission means for transmitting as information for allowing communication with one communication device.

[0012] Further, in the communication device, transmitting means for transmitting the first information registered in the communication device for registration in another communication device, and the first information registered in the other communication device. And a determining unit for determining whether to permit communication with the other communication device based on first information registered in the communication device.

Also, the first communication device registered in the first communication device
Registration information for transferring and registering the information to the second communication device, based on the information registered in the registration step, and the first information registered in the first communication device. And a control method for a communication system, comprising: determining whether to permit communication between the first communication device and the second communication device.

A registration step for registering first information registered in the first communication device transferred from the first communication device, and a first information registered in the registration step, A method for controlling a communication device, comprising a transmission step of transmitting the information as information for permitting communication with the first communication device.

Further, in the method for controlling a communication device, a transmitting step for transmitting the first information registered in the communication device for registration in another communication device; First information and, based on the first information registered in the communication device, comprising a determining step for determining whether to permit communication with the other communication device, To provide a control method for a communication device.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a connection state between a portable terminal 101 and a personal computer 102 in a portable terminal communication system according to the present embodiment will be described with reference to FIG.

In the data communication between the portable terminal 101 and the personal computer 102, an RS232C interface box 103 is used.
A communication line is connected to the personal computer 102 via the 232C interface box 103.

Next, the configuration of the personal computer used in this embodiment will be described.

(Internal Configuration of Personal Computer)
The internal configuration of the personal computer will be described with reference to FIG.

Reference numeral 102 denotes a personal computer according to the present embodiment.

Reference numeral 201 denotes execution of a program stored in the hard disk 202 or the auxiliary storage device and data processing.
CPU.

A hard disk 202 stores programs and data.

Reference numeral 203 denotes an auxiliary storage device which stores data which is auxiliary to the hard disk 202 or nonvolatile.

Reference numeral 204 denotes a display circuit of the personal computer 102 for displaying on a display device.

Reference numeral 205 denotes a display device such as a CRT.

Reference numeral 206 denotes an RS232C-I / F circuit for exchanging data with the portable terminal 101 via the RS232C interface box 103.

Reference numeral 207 denotes a data input unit for inputting data such as a keyboard and a pointing device.

Next, the configuration of the portable terminal used in this embodiment will be described.

(Internal Configuration of Portable Terminal) The internal configuration of the portable terminal will be described with reference to FIG.

Reference numeral 101 denotes a portable terminal according to the present embodiment.

Reference numeral 301 denotes a CPU, which is a flash memory 302.
The operation of each part of the circuit is controlled in accordance with a system program or various application programs stored in advance in the fingerprint sensor 308. Fetches human fingerprint information data from
Feature points are extracted from the image. Also, it performs various controls at the time of communication with a personal computer described later.

Reference numeral 302 denotes a flash memory which stores a program and stores fingerprint characteristic point extraction data.

Reference numeral 303 denotes an RS232C-I / F circuit for exchanging data with the personal computer 102 via the RS232C interface box 103.

Reference numeral 304 denotes a key for inputting characters and symbols, a mode key operated when switching operation modes such as a telephone number mode, a schedule mode, a calendar mode, and a memo mode, a kana / kanji conversion function, a data registration function, It is a key input circuit provided with various function keys and the like operated when instructing a search function or the like.

Reference numeral 305 denotes the CPU in various operation modes.
In addition to a work register that temporarily stores data input to and output from the 301, an input register that stores key input data, a notebook data register that stores various notebook data such as telephone numbers, schedules, calendars, and memos And said
It is provided with a communication data register and the like in which data communicated via the RS232C-I / F circuit 303 is stored, and is a RAM for transferring a program from the flash memory 302 and actually operating the program.

Reference numeral 306 denotes data which is sequentially displayed by operating the key input circuit 304, and notebook data read out from the RAM 305, communication data transmitted / received via the RS232C-I / F circuit 303, and the like. The LCD is displayed according to each operation mode.

Reference numeral 307 denotes a power supply circuit which has a power supply composed of a battery or a rechargeable battery and supplies operation power to each part of the circuit.

Reference numeral 308 denotes a fingerprint sensor for notifying the CPU 301 that a human finger has touched, and for notifying the CPU 301 of fingerprint information data.

309 has a built-in peripheral I / O function of the portable terminal
ASIC.

Next, the outer shape of the portable terminal used in this embodiment will be described.

(Outline of Portable Terminal) FIG.
See Figure 4.

Reference numeral 101 denotes a portable terminal with a fingerprint authentication function shown in FIG. 1, and 306 denotes an LCD, 308 which is a display unit shown in FIG.
Is a fingerprint sensor shown in FIG. 3 for inputting fingerprint information data with a finger placed.

(Detailed Description of Operation) First, a method of registering fingerprint data for security during data communication with a personal computer and a portable terminal in this embodiment will be described.

(Registration method to mobile terminal) First, the mobile terminal
A method for registering fingerprint data used for security when data communication is performed between the personal computer 102 and the portable terminal 101 in the personal computer 102 will be described with reference to FIG.

First, by operating the key input circuit 506,
When the startup operation of the fingerprint registration software is performed, the CPU3
01 starts up the software for fingerprint registration stored in the flash memory 302 (S501). Next, the user selects which finger's fingerprint is to be registered from the fingers displayed on the LCD 306 (S5).
02). Next, when the selected finger is put on the fingerprint sensor 308 to actually register the fingerprint (S503), the fingerprint sensor 308 notifies the CPU 301 that the fingerprint sensor 308 has been pressed.

Next, upon receiving the notification that the fingerprint has been pressed, the CPU 301 instructs the fingerprint sensor 308 to send the fingerprint image information of the placed finger, and receives the fingerprint image information data from the fingerprint sensor 308. Then, fingerprint image data is generated (S504). Thereafter, the CPU 301 extracts the characteristic points of the fingerprint from the fingerprint image data (S505), and when the extraction of the characteristic points is completed, stores the characteristic point extraction data in the flash memory 302 (S506).

In the manner described above, the portable terminal 101
The fingerprint data used for security at the time of data communication can be registered.

(Registration Method to Personal Computer) Next, the personal computer 102 and the portable terminal 101
A method of registering fingerprint data used for security when performing data communication between personal computers 102 will be described with reference to FIG.

As shown in FIG. 1, the portable terminal 101 is placed in the RS232C interface box 103, and the personal computer 102 and the portable terminal 101 are set in a state capable of data communication (S601). And personal computer 102
, A personal computer 102 and a mobile terminal 101
The installation of communication software for data communication between them is started (S602). When the installation instruction is given, the personal computer 102 and the portable terminal 1
When communication between the personal computers 102 and 01 is not possible, the CPU 201 of the personal computer 102 uses the display unit 205 to issue a warning as shown to the user so as to enable communication between the personal computer 102 and the portable terminal. Cancel the installation.

At the time of installation, the personal computer 102 transmits a fingerprint data transfer request for data communication to the portable terminal 101 in order to request the portable terminal 101 to transfer fingerprint data registered in the portable terminal 101. (S603).

The portable terminal 101 receives the request (S60
4), and transmits the fingerprint data obtained by extracting the characteristic points registered in the description of FIG. 5 to the personal computer 102 (S605).

Upon receiving the fingerprint data (S606), personal computer 102 registers the fingerprint data in hard disk 202 as security data for data communication with portable terminal 101 (S607). Then, the installation of the communication software is completed (S608).

As described above, the fingerprint data for security registered in the portable terminal 101 can be registered in the personal computer 102.

Next, the detailed operation of data communication between personal computer 102 and portable terminal 101 after registration of fingerprint data will be described with reference to FIG.

First, the portable terminal 101 is placed in the RS232C interface box 103 as shown in FIG. 1, and data communication between the personal computer 102 and the portable terminal 101 is enabled (S701).

Next, the CPU 20 of the personal computer 102
1 is a hard disk in accordance with the operation of the data input
The software for communication with the portable terminal 101 in which 202 has been installed is activated (S702). Personal computer 102
The operator selects data to be transferred from the mobile terminal 101, for example, data relating to a schedule, telephone directory data, and the like (S703). The personal computer 102
The mobile terminal 101 transmits a data transfer request such as information designating the selected data to be transferred and data necessary for the transfer, and fingerprint data obtained by extracting the characteristic points of the fingerprint registered in the description of FIG. (S704).

The portable terminal 101 is a personal computer 1
When the data transfer request is received from the mobile terminal 10 (S705), the fingerprint data sent together with the data transfer request
Judge whether it matches the fingerprint data registered in 1 (S
706). When the fingerprint data sent from the personal computer 102 matches the fingerprint data registered in the portable terminal 101, the data designated by the personal computer 102 is transmitted to the personal computer 102 ( S707). If they do not match, it is determined that they are not valid communication partners, and error data is transmitted to the personal computer 102 (S708).

The personal computer 102 is a portable terminal 1
When receiving the data from 01 (S709), it is determined whether or not the data is error data (S710). If the data is not error data, the received data is
It is stored in the hard disk 202 in the computer 102 (S7
11) Notify the operator that data reception has been completed. If the received data is error data, an error message is displayed on the display device 205 (S71).
2).

In the above description, the case where data in the portable terminal is transmitted to the personal computer has been described. However, when data in the personal computer is transmitted to the portable terminal, fingerprint data is transmitted from the personal computer. When the mobile terminal determines that the fingerprint data is valid data, the mobile terminal transmits a communication permission signal to the personal computer. When the permission signal is received, the data is transmitted from the personal computer to the mobile terminal. You may make it transmit.

Further, the fingerprint data is transmitted from the portable terminal to the personal computer.
The fingerprint data may be collated by a computer.

In the above description, communication between a portable terminal and a personal computer has been described. However, the above security can be used for communication between communication devices such as between a personal computer and a portable terminal.

As described above, when fingerprint data for data communication is registered in the personal computer and the portable terminal, and when the data in the portable terminal is communicated from the portable terminal to the personal computer, the personal computer transmits the fingerprint data to the portable terminal. By transmitting the fingerprint data to the mobile terminal and transmitting the data when the mobile terminal receiving the data matches the registered data communication fingerprint data, it is possible to prevent data leakage in the mobile terminal .

When the software is installed in the personal computer, the fingerprint data registered in the portable terminal is transferred to the personal computer.
Since the transferred fingerprint data is registered in the personal computer, registration of the fingerprint data in the personal computer can be surely performed, and communication can be performed only between the devices connected at the time of installing the software.

When software is installed in a personal computer in a state where the mobile terminal is directly connected to the personal computer, fingerprint data registered in the mobile terminal is registered in the personal computer. Before the communication, the communication between the portable terminal and the personal computer is not protected, but the fingerprint data for security can be registered in a state where it is difficult for the fingerprint data for security to be stolen by another device. In addition, after the software installation is completed and the fingerprint data is registered, security using the fingerprint data is performed, so that data leakage can be prevented.

[0065]

As described above, according to the present invention, a certain restriction can be imposed when data is communicated by the communication device.

Further, for example, it is possible to prevent data leakage in a device such as a portable terminal or a personal computer that can communicate.

[Brief description of the drawings]

FIG. 1 is a connection diagram of a portable terminal and a personal computer in the present embodiment.

FIG. 2 is an internal block diagram of a personal computer in the embodiment.

FIG. 3 is an internal block diagram of the portable terminal according to the embodiment.

FIG. 4 is an external view of a portable terminal according to the embodiment.

FIG. 5 is a flowchart of a method for registering fingerprint data in a portable terminal according to the embodiment.

FIG. 6 is a flowchart of a method for registering fingerprint data in a personal computer in the embodiment.

FIG. 7 is a data communication flowchart between the personal computer and the portable terminal according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Mobile terminal 102 Personal computer 103 RS232C interface box

Claims (15)

[Claims] A registration unit configured to transfer first information registered in a first communication device to a second communication device and to register the first information; information registered by the registration unit; On the basis of the first information registered in the communication device, the first
A communication system comprising: a determination unit configured to determine whether to permit communication between the communication device and the second communication device. 2. The method according to claim 1, wherein the determination by the determination unit is performed by the first communication device, and the second communication device is registered by the registration unit so that the determination by the determination unit can be performed. A communication unit for transmitting the first information to the first communication device. 3. The communication system according to claim 2, wherein the registration by the registration unit is performed when predetermined software for making the determination by the determination unit is installed. 4. The communication system according to claim 1, wherein the first information is information about a fingerprint. 5. A registration unit for registering first information registered in the first communication device transferred from the first communication device, and the first information registered by the registration unit is stored in the first communication device. A communication device having transmission means for transmitting as information for allowing communication with one communication device. 6. The communication device according to claim 5, wherein the transmitting unit transmits, together with the first information, designation information for designating data stored in the first communication device. 7. The communication device according to claim 6, further comprising a receiving unit that receives data based on the designation information. 8. The communication device according to claim 5, wherein the registration by the registration unit is performed when predetermined software for performing transmission by the transmission unit is installed. 9. The communication device according to claim 5, wherein the first information is information about a fingerprint. 10. A communication device, comprising: transmitting means for transmitting first information registered in the communication device to register the communication device in another communication device; and first information registered in the other communication device. And a determining unit for determining whether to permit communication with the other communication device based on first information registered in the communication device. 11. The communication device according to claim 10, wherein the transmitting unit transmits the first information when the other communication device installs predetermined software for performing communication with the communication device. Communication device. 12. The communication device according to claim 10, wherein the first information is information about a fingerprint. 13. A registration step for transferring and registering first information registered in a first communication device to a second communication device, the information registered in the registration step, A determination step of determining whether to permit communication between the first communication device and the second communication device based on the first information registered in the one communication device. Communication system control method. 14. A registration step for registering first information registered in the first communication device transferred from the first communication device, and the first information registered in the registration step, The first
A method for controlling a communication device, comprising: a transmission step of transmitting as information for permitting communication with the communication device. 15. A control method for a communication device, comprising: a transmitting step of transmitting first information registered in the communication device for registration in another communication device; and transmitting the first information registered in the another communication device. First information and, based on the first information registered in the communication device, comprising a determining step for determining whether to permit communication with the other communication device, Communication device control method.