JPS6323454A - Data communication system - Google Patents

Abstract

PURPOSE:To completely prevent the illegal use of an information processing system by a 3rd party by sending a finger print of a user and collating the received finger print with registered finger prints in advance so as to confirm the user. CONSTITUTION:When a password number is confirmed, a center gives a finger print transmission request reply, which is inputted to a CPU 5 and the CPU 5 starts a sensor 3 to read the finger print, a control signal is sent to a changeover circuit 10, which switches an output from a conventional serial interface circuit 8 into an output from the sensor 3. The finger print of the user is sent when the user touches his thumb onto the sensor 3. The center collates the received finger print with finger prints registered in advance, and as the result, when the user is confirmed, a message reply for the start of service is sent. The user inputs a service number and then the service is started.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a data communication system for using various communication services.

(Prior art) Computers, etc. (hereinafter referred to as "computers") in general.
When computers and computers are to be jointly used and received various services from various communication terminal devices in remote locations via communication lines, a dedicated line is installed in the same company or group to connect the computers and the terminal devices.

In recent years, improvements in the processing power of computers have made it possible to accommodate a larger number of terminal devices, and it has also become possible to use not only terminal devices exclusively for computers but also familiar terminal devices such as telephones. For example, voice response services in banks use public telephone lines, and general users can receive computer services using a nearby telephone terminal as a terminal device.

(Problems to be Solved by the Invention) By the way, in the case of a private line, computers can only be used on the terminal device connected to the private line, whereas in the case of a public line, the computer can be used only at the terminal device connected to the private line. It is possible to connect to an unspecified number of terminals via the device. However, in this case, a problem arises in that a third party can also easily connect to the computer. For this reason, as a means of confirming the user, the user is required to enter a user number, PIN number, etc. (hereinafter, these two numbers will be abbreviated as f'IDJ), and this ID
Measures are taken to prevent unauthorized use by third parties by referencing the information as registered in the computer in advance.

However, this method has the problem that if the ID is known to a third party, it is impossible to prevent unauthorized use of the computer.

The present invention was devised in view of the above-mentioned circumstances, and an object of the present invention is to provide a data communication system that can completely prevent unauthorized use by a third party of an information processing system by a data terminal device.

[Structure of the Invention] (Means for Solving the Problems and Their Effects) That is, the data communication system of the present invention is a data communication system in which a data terminal device and an information processing system are connected via a transmission path. A data terminal device includes a fingerprint reading means for reading a user's fingerprint and converting it into an electrical signal, a signal sending means for sending the electrical signal to a transmission line, and a signal sending means for transmitting the signal based on a control signal from the transmission line. a transmission control means for controlling transmission of an electrical signal to a transmission path, the information processing system comprising: a fingerprint storage means for storing a fingerprint of a user registered in advance; and a transmission control means for transmitting the control signal to the transmission path. a control signal sending means for comparing the fingerprint stored in the fingerprint storage means with the fingerprint sent from the transmission path; Since the processing system is provided with a means for controlling the execution of the requested processing, unauthorized use by a third party can be completely prevented.

(Example) Hereinafter, details of an example of the present invention will be described based on the drawings.

FIG. 1 is an external view of a data terminal device to which the present invention is applied, and includes a display 1, a keyboard 2, and a sensor 3 for reading fingerprints. As the sensor 3, a contact type sensor that does not require illumination for reading is convenient.
Two-dimensional sensors are used that have a resolution necessary for identifying fingerprints, for example, about 16 dots/mm.

FIG. 2 is a schematic configuration diagram of a data terminal device to which the present invention is applied.

In the figure, the data terminal circuit 4 is composed of a CPU 5, a ROM 6, a RAM 7, a serial interface circuit 8, and an interface circuit 9, like a normal data terminal circuit. This data terminal device is constructed by adding a sensor 3 and a switching circuit 10 to a data terminal circuit 4, and a modem 11 and a network TIN device 12 (hereinafter referred to as
It is called rNcUJ. ) is connected to the central office line 13.

Roughly speaking, this data terminal device is connected to a not-shown center machine (hereinafter referred to as "center") via a central office line 13.

The CPU 5 controls the data terminal circuit 4, the sensor Fj 3, and the switching circuit 1 based on the control program stored in the ROM 6.
It has a function to control 0. The ROM 6 is a memory in which control programs and the like are stored. Above R
AM7 is a memory for temporarily storing and processing input signals from the central office line 13, input signals from the keyboard 2, and the like.

The serial ink face circuit 8 is connected to the switching circuit 10 and has a function of converting parallel data from the data terminal circuit 4 into serial data and a function of converting serial data from the central office line 13 into parallel data.

The interface circuit 9 is connected to the display 1 and the keyboard 2, and has a function of transmitting data between the display 1 and the keyboard 2 and the CPU 5.

Further, the switching circuit 10 has a function of performing switching for connecting the serial interface circuit 8 or the sensor 3 to the modem 11 under the control of the CPU 5. The sensor 3 is for reading fingerprints and has a rate of 16 dots/mm.
A device that reads an area of 30 mm x 30111711 with a resolution of
It takes place in seconds.

Furthermore, the modem 11 has a function of modulating data output from the serial interface circuit 8 or sensor 3 and outputting it to the central office line 13, and demodulating data from the central office line 13 and outputting it to the serial interface circuit 8. has. The NCIJ 12 has a function of connecting the data terminal device and the center via the central office line 13 by dialing the center when starting communication.

In addition to the means constituting a normal center, the above-mentioned center (not shown) has means for storing fingerprints of users registered in advance, means for sending a fingerprint transmission request response to a data terminal device, and means for storing fingerprints of users registered in advance. A means for comparing the user's fingerprint sent from the data terminal device with a fingerprint sent from the data terminal device, and a means for controlling the presence or absence of service to the data terminal device based on the result of this comparison are added.

The operation of the data communication system configured in this way will be explained.

In normal use, first, the NCU 12
3, this data terminal device and the center are connected. The input signals etc. from the keyboard 2 are converted into serial data via the serial interface circuit 8 via the interface circuit 9 and roughly controlled by the CPtJ5, and further this serial data is modulated by the modem 11, and this modulated A signal is output to the center via the office line 13. On the other hand, the input signal from the center is transmitted to the modem 11
The data is demodulated by the serial interface circuit 8, converted from serial data to parallel data, and stored in the RAM 7 or displayed on the display 1 under the control of the CPU 5.

By the way, in this data communication system, the operation shown in Figure 3 is now performed for things that should be prevented from being known to a third party and being used illegally, such as when checking bank balances. ing.

The figure shows an example of the operation sequence when receiving various communication services from the center using this data communication system.
For example, consider a communication service that allows you to check your bank balance.

First, the NCU 12 connects this data terminal device and the center via the office line 13. Then, an access request is input to the bank center using the keyboard 2 and notified. In response to this notification, the center returns a response ■ of service acceptance and password request. The user sends the password by operating the keyboard 2. When the PIN number is confirmed, the center issues a fingerprint transmission request response ■. This fingerprint transmission request response ■ is input to the CPU 5, and the CPIJ 5 activates the sensor 3 to read the fingerprint, and also sends a control signal to the switching circuit 10 to output from the normal serial interface circuit 8. Switching is performed so that the output is from sensor 3.

When the user places his or her thumb on the sensor 3, the user's fingerprint is transmitted. That is, the fingerprint read by the sensor 3 is modulated by the modem 11 via the switching circuit 10 and transmitted. The center compares the previously registered fingerprint with the received fingerprint, and if the user is confirmed as a result, sends a message response (2) to start service. The user enters the service number and the service is started.

The above is a case where a legitimate depositor uses a communication service to check bank balances, etc., but even if the user's PIN is known to a third party, unauthorized use will be impossible due to fingerprint verification. I'll go.

Next, another embodiment of the present invention is shown in FIG.

That is, FIG. 4 is an external view of a telephone to which the present invention is applied, which includes a transmitter 14, a dial key 15, and a sensor 16 for reading fingerprints. As this sensor 16, it is convenient to use a contact type sensor that does not require illumination for reading, and has the resolution required for identifying fingerprints, such as 1
A two-dimensional sensor of about 6 dots/mm is used.

FIG. 5 is a schematic configuration diagram of a telephone to which the present invention is applied.

In FIG. 5, a telephone circuit 17 is composed of a transmitter 14, a dial key 15, and a communication circuit 18, the same as a normal telephone. The telephone communication circuit 18 has a function of driving the transmitter 14 and a function of generating a three-frequency signal according to the dial key 15. The switching circuit 19 has a function of switching to connect the telephone circuit 17 and a modem circuit 20 (described later) to the central office line 21. One of them is connected to the office line 21 via a transformer 22.

The modulation/demodulation circuit 20 is for transmitting fingerprints to a center machine such as the RBI and for receiving control signals from the center machine, and here, a circuit having a communication speed of 9600 bpS is used. For example, if the sensor 16 has a resolution of 16 dots/mm and reads an area of 30 mm x 30 mm, a fingerprint can be transmitted in about 20 seconds. On the other hand, the control signal from the center machine is for requesting fingerprint transmission at the start of use, etc.
The control signal demodulated with 0 is output to the control circuit 23.

The control circuit 23 analyzes the control signal received from the center machine, controls the transmission of the electrical signal that is obtained by reading the fingerprint from the sensor 16, and controls switching between the telephone circuit 17 and the modulation/demodulation circuit 20 in the switching circuit 19. .

FIG. 6 is an example of an operation sequence when receiving various services such as a computer using a telephone to which the present invention is applied. For example, when considering the case of a voice response service for checking bank balances, first, the bank's computer system Enter from dial key 15 to call the center. In response to this call, the center accepts the service and returns a response request for the PIN number. The user operates the dial key 15 to send out the password. When the password is confirmed, the center issues a fingerprint transmission request response ■.

When the user places his or her thumb on the sensor 16, the user's fingerprint is transmitted. The center compares the previously registered fingerprint with the received fingerprint, and if the user is confirmed as a result, sends a message response ■ to start the service. The user enters the service number and the service is started.

The above is a case where a legitimate depositor uses a voice response service to inquire about bank balances, but even if the user's PIN is known to a third party, fingerprint verification will prevent unauthorized use. It is possible.

In this case, the present invention can be applied not only to analog telephones but also to digital telephones in digital networks, which are expected to become popular in the future.

Incidentally, in the above two embodiments, a case was described in which a bank balance inquiry service and a voice response service were provided by a data terminal device, but the present invention is not limited to this, and can be applied to, for example, a cash dispenser. Of course, it can also be applied to financial instruments such as.

[Effects of the Invention] As explained above, according to the data communication system of the present invention, unauthorized use of the information processing system by a data terminal device by a third party can be completely prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a data terminal device according to an embodiment of the present invention, FIG. 2 is a schematic structural diagram of this data terminal device, and FIG.
4 is a perspective view of a telephone according to another embodiment of the present invention, and FIG. 5 is a diagram showing the operation sequence of this data communication system.
The figure is a block diagram of the configuration of this telephone, and FIG. 6 is a diagram showing the operation sequence of this telephone. 3...Sensor 4...Data terminal circuit 10...Switching circuit Applicant Toshiba Corporation Agent Patent attorney Sasu Suyama - No. Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (1) In a data communication system in which a data terminal device and an information processing system are connected via a transmission path, the data terminal device includes a fingerprint reading means for reading a user's fingerprint and converting it into an electrical signal, and the information processing system, the information processing system comprising: a signal sending means for sending an electric signal to a transmission path; and a sending control means for controlling sending of an electric signal to a transmission path by the signal sending means based on a control signal from the transmission path; , a fingerprint storage means for storing a fingerprint of a user registered in advance; a control signal sending means for sending the control signal to the transmission path; It is characterized by comprising a fingerprint matching means for matching a fingerprint with a fingerprint, and a means for controlling execution of processing requested from the data terminal device to the information processing system based on the matching result of the fingerprint matching means. Data communication system.