JP2002315055A - Communication terminal and radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal that can remedy complicated operation at the time of establishing the connection of radio communication, and in addition, can improve the reliability and safety of radio communication, and to provide a radio communication system. SOLUTION: Handwritten signature data, inputted by using a pen, are preregistered in a portable telephone 106. When the operator of a portable terminal 100 operates the terminal 100 to generate a connection request to the telephone 106, the terminal 100 transmits the signature data inputted by the operator to the telephone 106, and the telephone 106 collates the transmitted signature data with the preregistered signature data, namely, performs signature authentication and, establishes the connection only when both signature data are coincident with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal and a wireless communication system for performing signature authentication and the like when connecting wireless communication.

[0002]

2. Description of the Related Art Conventionally, as a means for data communication between two terminals, wired communication in which both are connected by a cable has been used.
As disclosed in Japanese Patent No. 3059, wireless communication for connecting both terminals wirelessly using light or radio waves has also been used.

[0003] In the wired communication, since both terminals are connected by a cable, data communication can be performed safely and reliably. However, there is a drawback that the operation of connecting the cable is complicated and is easily affected by electric noise due to vibration. For this reason, for example, wireless communication for performing data communication by connecting terminals at short distances with a wireless communication channel using infrared light or the like (IrDA or the like) as a medium is used.

In wireless communication, when transmitting data using infrared light, it is necessary to face the optical communication unit. If there is an obstacle between the parts that transmit and receive light, light does not reach. If you use radio waves, most things can be transmitted and communicated. Bluetooth-enabled products that use radio waves are also beginning to spread. Regarding Bluetooth, a device in which a data communication unit supporting Bluetooth is mounted on a small device such as a pen has been proposed. The wireless technologies listed here have the advantage that they do not require cables, as well as the advantages that they can be easily made smaller and consume less power.

[0005] In wireless communication, troublesome wiring is not required, and it is possible to connect familiar devices via a network.

[0006]

However, the wireless communication has only the wireless technology and also has the aspect that the communication can be easily performed without the terminal owner. As a result, the possibility of unauthorized access to data or destruction of data by others cannot be denied. In other words, there is no security in wireless communication, and anyone can access data as long as wireless communication is set.

Although there are many methods of controlling data access using a password, there is a risk that the password may be stolen by another person. Further, in the future, for example, it is expected that the possible range of communication in Bluetooth will be expanded to about 10 times the current level, and it is considered that the risk of data leakage will further increase. Therefore, the terminal on the data receiving side needs to have a function excellent in reliability and security in order to confirm the partner terminal.

Further, in a wireless communication system, in order to establish a communication connection between terminals, it is necessary for a side requesting communication and a side permitting communication to know each other's terminal type and type. . Therefore, in order to establish a communication connection, it is necessary to input complicated information. Further, even though the information is complicated, what is recognized here is the device information of the terminal, not the information for identifying the individual, so that it is impossible to identify the individual.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made in view of the above circumstances, and is capable of improving a complicated operation when establishing a wireless communication connection and improving reliability and security of the wireless communication. An object is to provide a terminal and a wireless communication system.

[0010]

According to a first aspect of the present invention, there is provided a communication terminal for performing data communication with an external device, comprising: a personal information input unit for inputting personal information; Personal information storage means for storing the input personal information; wireless communication means for wirelessly communicating with the external device; and personal information stored in the personal information storage means and the external device using the wireless communication means. Determining means for determining whether the personal information received from
When the discrimination means determines that the two pieces of personal information match, wireless communication with the external device is permitted. When the discrimination means determines that the two pieces of personal information do not match, the external device determines whether the two pieces of personal information match. Wireless communication permission determining means for not permitting wireless communication with the device.

According to a second aspect of the present invention, in the communication terminal according to the first aspect, when the wireless communication permission determining means once permits the wireless communication, the personal information storage means permits the external device to permit the wireless communication. Is stored.

According to a third aspect of the present invention, in the communication terminal according to the second aspect, when the wireless communication permission deciding means does not permit the wireless communication, the personal information storage means is an external device which does not permit the wireless communication. It is characterized by storing terminal information.

A communication terminal according to a fourth aspect of the present invention is the communication terminal according to any one of the first to third aspects, wherein the personal information is at least one of a handwritten signature, a fingerprint, and a voice.
It is characterized by one.

According to a fifth aspect of the present invention, in the wireless communication system having a plurality of communication terminals, one of the communication terminals is a personal information input means for inputting personal information.
Personal information storage means for storing the input personal information;
Wireless communication means for wirelessly communicating with another one of the communication terminals; personal information stored in the personal information storage means; and personal information received from the other one of the communication terminals by the wireless communication means Means for determining whether or not the two correspond to each other; and when the determination means determines that the two pieces of personal information match, wireless communication with the other one of the communication terminals is permitted. Wireless communication permission determining means for not permitting wireless communication with another one of the communication terminals when it is determined that the two personal information do not match.

According to a sixth aspect of the present invention, there is provided a wireless communication system.
In the wireless communication system described above, when the wireless communication permission determining unit once permits wireless communication, the personal information storage unit stores terminal information of a communication terminal that has permitted wireless communication.

According to a seventh aspect of the present invention, there is provided a wireless communication system.
In the wireless communication system described above, when the wireless communication permission determining unit does not permit wireless communication, the personal information storage unit stores terminal information of a communication terminal that does not permit wireless communication.

An eighth aspect of the present invention provides a wireless communication system according to the fifth aspect.
8. The wireless communication system according to claim 7, wherein the personal information is at least one of a handwritten signature, a fingerprint, and a voice.

[0018]

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

FIG. 1 is a block diagram showing a configuration of a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 1, the wireless communication system according to the embodiment of the present invention includes a portable terminal 100 and a portable telephone 106. The mobile terminal 100 includes a signature input unit 101 for inputting a signature by hand by a person with a pen and reading the input signature, a memory 102 for storing the input signature data and the like, a communication state, Display unit 1 for displaying buttons or operation status, etc.
03, a CPU 104 that performs various controls such as signature authentication and communication control, and a wireless communication unit 105 that is connected to a mobile phone 106 via a wireless communication channel and that transmits and receives signature data and the like when this connection is established. I have. CPU10
Reference numeral 4 has a built-in RAM serving as a working memory.

A portable telephone 106 has a display unit 107 for displaying a communication state, buttons for operation, operation status, and the like.
And a sign input unit 108 in which an individual inputs a sign by hand with a pen and reads the inputted sign.
And a CP that performs various controls such as signature authentication and communication control
U109, a memory 110 for storing the input signature data and the like, and a wireless communication unit 111 connected to the mobile terminal 100 via a wireless communication channel and transmitting and receiving the signature data and the like when this connection is established. The CPU 109 has a built-in RAM serving as a working memory.

The processing executed by the portable terminal 100 or the portable telephone 109 configured as described above will be described below.

FIG. 2 is a flowchart showing a process of registering the signature data in the mobile phone 106 in advance. This process is mainly executed by the CPU 109 of the mobile phone 106 at predetermined time intervals, for example, every minute.

First, the CPU 109 determines whether or not the operator of the mobile phone 106 has requested signature registration (step S201). If the operator has not requested signature registration, the CPU 109 does not execute this processing. On the other hand, if signature registration has been requested, a message prompting for signature input is displayed on the display unit 107 (step S202). The input speed, pen pressure, coordinate values of the sign pattern, and the like when the operator signs using the input pen are taken into the memory 110 as sign data by the CPU 109 (step S203).

Next, signature input is executed a prescribed number of times.
It is determined whether the signature input has been completed (step 20).
4). Here, the sign input is executed a specified number of times.
This is because the sign input varies due to human motion.

If the result of determination in step S204 is that sign input has not been completed, this determination is repeated.
When the signature input is completed, the average value of the signature data input for the specified number of times is obtained, and this data is temporarily registered in the memory 110 (step S205). Here, in order to confirm whether or not it is determined that the signature temporarily registered in the memory 110 and the signature of the operator actually match, the operator is notified via the display unit 107 to input the signature again. (Step S206).

Next, the temporarily registered signature is compared with the re-entered signature, that is, it is determined whether the temporarily registered signature matches the re-entered signature (step S207). , If these signs do not match,
Returning to step S202, while re-entering the signature,
If these signatures match, either the temporarily registered signature or the re-entered signature is officially registered in the memory 110 (step S208), and the process ends.

FIG. 3 is a flowchart showing processing executed by the portable terminal 100. This processing is mainly executed by the CPU 104. FIG.
Is a flowchart showing the processing executed by the CPU 109. This processing is mainly executed by the CPU 109.

In FIG. 3, first, it is determined whether or not a connection request with the mobile phone 106 has been generated by an operator's operation or the like (step S301). Ends the process, and when a connection request with the mobile phone 106 is generated, displays a message prompting the sign input on the display unit 107 (step S3).
02). Then, when the operator inputs a signature (step S303), the signature data is transferred to an IQ packet (Inqu
iry) and the wireless communication unit 105 transmits the data to the mobile phone 106 (step S304).

On the other hand, in FIG.
From 0, it is determined whether or not the IQ packet and the signature data have been received (step S401). If the IQ packet and the signature data have not been received, the process ends, while the IQ packet and the signature data are received. If the connection has been established, it is determined whether or not the connection with the mobile terminal 100 has been established before (step S402).
If a connection with the mobile terminal 1 has been previously established, the process skips to step S406 described below.
In the case where the connection with 00 has not been established before, the signature data registered in the memory 110 of the mobile phone 106 is called (step S403), and the signature data received from the mobile terminal 100 and called in step S403. Collation with the signature data is performed, that is, it is determined whether the received signature data is correct (step S40).
4).

If the result of determination in step S404 is that the received signature data is correct, information on the portable terminal 100 is registered in the memory 110 as a terminal to which connection is permitted (step S405), and connection is established. A normal message indicating that the operation was successfully performed is sent to FHS (Frequency H
op Synchronization) and transmits the same to the mobile terminal 100 (step S406), and ends this processing.

On the other hand, if the received signature data is incorrect as a result of the determination in step S404, the terminal information is stored in the memory 110 as the terminal that has performed the unauthorized access (step S407). A warning message is transmitted together with the FHS to the requesting portable terminal (step S408), and the process ends.

FIG. 5 shows a sequence for establishing a connection between the mobile phone and the mobile terminal, that is, a case where the mobile terminal transmits correct sign data to the mobile phone in addition to the IQ packet. FIG. 6 shows a sequence when a connection with the mobile terminal is not established, that is, when the mobile terminal transmits incorrect sign data to the mobile phone in addition to the IQ packet.

Returning to FIG. 3, after step S304, it is determined whether or not a warning message has been received from mobile phone 106 (step S305). If a warning message has been received, display unit 103 of the mobile terminal is used. Then, a warning is displayed (step S306), and the operator of the portable terminal is alerted, and this processing is ended. On the other hand, if no warning message has been received in step S305, it is determined whether or not a normal message indicating that the connection has been normally made has been received, that is, whether or not there has been a connection establishment response ( In step S307), if there is a connection establishment response, a connection establishment message is displayed on the display unit 103 to notify the operator of the mobile terminal 100 that the connection has been established (step S309). This processing ends. On the other hand, in step S307, when there is no response of the connection establishment, it is determined whether or not a predetermined time has elapsed since the transmission of the sign data and the IQ packet in step S304 (step S308). If the predetermined time has not elapsed, the process returns to step S307. If the predetermined time has elapsed, the process returns to step S304 to transmit the signature data and the IQ packet again.

As described above, according to the present embodiment,
The mobile phone 106 registers handwritten signature data by pen input in advance, and the mobile terminal 100 sets a signature input by the operator when a connection request with the mobile phone 106 is generated by an operation of the operator or the like. Mobile data 1
06, and the mobile phone 106 checks the transmitted signature data with pre-registered signature data, that is, performs signature authentication, and establishes a connection only when they match, thereby establishing a connection. Can be limited to users who are allowed to communicate (users of the mobile terminal 100). As a result, safety and reliability of wireless communication can be improved. Further, since the input of complicated data at the time of establishing the communication connection can be completed by the signature authentication, the connection can be made more easily.

Here, once the connection is established, the information of the terminal to which the connection has been established is stored in the memory 1 of the portable telephone 106.
10 and automatically establishes a connection when a terminal is detected, eliminating the need to input a signature every time a connection is established. Also becomes possible.

Further, when it is determined that the signature data is not correct, the information of the terminal that has performed the unauthorized access is stored in the memory 110, so that the information regarding the terminal that has performed the unauthorized access can be collected.

In the above-described embodiment, signature data is used as an authentication method.
The authentication method need not be signature authentication. For example, FIG. 7 is a block diagram showing a configuration of a wireless communication system when using voiceprint authentication. In the wireless communication system of FIG.
The same components as those of the wireless communication system of FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 7, the portable telephone 106 includes a voice recognition unit 708 and a microphone 712 instead of the sign input unit 108 shown in FIG. 1, and stores voice data in the memory 710 via the microphone 712 in advance. A program related to voice data recognition is stored in 110. On the other hand, the mobile terminal 100 includes a voice recognition unit with microphone 701 instead of the sign input unit 101 shown in FIG.
The voice data input to “0” is transmitted to the mobile phone 106. Then, the CPU 109 compares the voice data input to the mobile terminal 100 with the voice data registered in the memory 110 of the mobile phone 106, that is, performs voiceprint authentication in accordance with the above-described program related to voice data recognition. In this way, the same effect as in the above embodiment can be obtained even when voiceprint authentication is used as the authentication method.

Similarly, fingerprint authentication can be used.

FIG. 8 is a block diagram showing a configuration of a wireless communication system when fingerprint authentication is used. In the wireless communication system of FIG. 8, the same components as those of the wireless communication system of FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 8, the portable telephone 106 includes a fingerprint authentication unit 808 instead of the signature input unit 108 shown in FIG.
When the mobile terminal 100 is provided with the fingerprint authentication unit 801 instead of the signature input unit 101 shown in FIG. 1, the fingerprint of the user of the mobile terminal 100 is compared with the fingerprint registered in advance in the mobile phone 106, and the fingerprint matches. Only establish a connection to In this way, the same effect as in the above-described embodiment can be obtained even when fingerprint authentication is used as the authentication method.

In the above embodiment, the mobile phone 10
Although the communication between the mobile terminal 6 and the mobile terminal 101 is described as being performed by Bluetooth, the present invention is not limited to this, and wireless communication other than Bluetooth communication may be used.

In the above embodiment, the mobile phone 10
In the case of inputting a signature in the sign input unit 108 of FIG. 6 but not having the sign input unit 108, the sign input is performed in another terminal having the sign input unit, and the data is input to the sign input unit. The data may be registered by transmitting the data to a mobile phone having no mobile phone and storing the data in a memory in the mobile phone.

Further, data for personal authentication may be stored in an IC card or the like, and the authentication may be performed based on the data. For example, in the above-described embodiment of the present invention, the mobile phone 106 and the mobile terminal 100 are provided with an IC card slot so that the IC card can be read, and the user is registered with the information of the user. The installed IC card is inserted into each IC card slot.

FIG. 9 is a flowchart showing a registration process for registering personal information from an IC card in the memory 102 in the portable terminal 100. This registration process is executed by the CPU 104, for example, every 30 seconds.

First, the CPU 104 determines whether or not an IC card has been inserted into the IC card slot (step S).
901) If the IC card is not inserted, the process is terminated. On the other hand, if the IC card is inserted, it is determined whether or not the IC card is correctly mounted and the data of the IC card can be read. Is determined (Step S9)
02).

If the result of determination in step S902 is that the IC card is correctly inserted and the data on the IC card can be read, the personal information stored in the IC card is read and registered in the memory 102 ( Step S
904), the process ends.

On the other hand, as a result of the determination in step S902,
If the C card is not properly inserted, or if the data of the IC card cannot be read, it is determined whether or not a predetermined time has elapsed since the start of this processing (step S903). If not,
While returning to step S902, if the predetermined time has elapsed, this processing ends.

The mobile phone 106 that receives the communication request also performs the same registration processing in advance to read the personal information on the IC card. And the mobile terminal 100
After performing the above registration process, the personal information registered is transmitted to the mobile phone 106. Thus, the connection is established only when the personal information transmitted from the mobile terminal 100 to the wireless communication unit 111 of the mobile phone 106 matches the personal information read from the IC card on the mobile phone 106.

In the above-described embodiment, the communication connection is established between the portable terminal 100 and the portable telephone 106, but the communication connection is performed with a portable terminal other than the portable terminal 100 and the portable telephone 106. May be. For example, a terminal such as a PHS terminal or a digital still camera may be used, and the type and number of terminals may be in any combination.

[0052]

As described in detail above, according to the communication terminal of the first aspect and the wireless communication system of the fifth aspect, the external device (claim) is stored in the personal information stored in the personal information storage means and the wireless communication means. In the wireless communication system of item 4, it is determined whether or not the personal information received from another communication terminal) matches, and when it is determined that the two personal information match, an external device (communication) is determined. When wireless communication with the other one of the terminals is permitted and it is determined that the two personal information do not match, the external device (the other one of the communication terminals) is not used.
Since the wireless communication with (i) is not permitted, it is possible to improve the safety and reliability of wireless communication that can be used by anyone if the setting is made. In addition, since complicated data input at the time of establishing a communication connection can be performed by authenticating personal information, complicated operations are improved, and connection can be performed more easily.

According to the communication terminal of the second aspect and the wireless communication system of the sixth aspect, when the wireless communication permission deciding means once permits the wireless communication, the personal information storage means makes the external device (the wireless device permitting the wireless communication). In the case of the wireless communication system according to the fifth aspect, the terminal information of the communication terminal is stored, so that there is no need to input personal information every time a communication connection is established. Communication connection can also be established.

According to the communication terminal of the third aspect and the wireless communication system of the seventh aspect, when wireless communication is not permitted,
Since the personal information storage means stores the terminal information of the external device (communication terminal in the case of the wireless communication system of claim 6) which does not permit the wireless communication, it is possible to collect the terminal information of the terminal that has made unauthorized access. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless communication system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a process for registering signature data in advance in the mobile phone 106 of FIG.

FIG. 3 is a flowchart illustrating a process executed by the mobile terminal 100 of FIG. 1;

FIG. 4 is a flowchart showing a process executed by the mobile phone 106 in FIG.

FIG. 5 is a diagram showing a sequence when the mobile terminal transmits correct sign data to the mobile phone in addition to the IQ packet.

FIG. 6 is a diagram showing a sequence in a case where the mobile terminal transmits incorrect signature data to the mobile phone in addition to the IQ packet.

FIG. 7 is a block diagram illustrating a configuration of a wireless communication system when voiceprint authentication is used.

FIG. 8 is a block diagram illustrating a configuration of a wireless communication system when fingerprint authentication is used.

FIG. 9 is a flowchart illustrating a registration process of registering personal information from an IC card in a memory in the portable terminal.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 mobile terminal 101, 108 signature input unit 102, 110 memory 103, 107 display unit 104, 109 CPU 105, 111 wireless communication unit 106 mobile phone 701 microphone voice recognition unit 708 voice recognition unit 712 microphone 801, 808 fingerprint authentication unit

Claims (8)

[Claims] 1. A communication terminal for performing data communication with an external device, comprising: a personal information input unit for inputting personal information; a personal information storage unit for storing the input personal information; Wireless communication means for wirelessly communicating between the personal information stored in the personal information storage means and determination means for determining whether the personal information received from the external device by the wireless communication means match, When the discrimination means determines that the two pieces of personal information match, wireless communication with the external device is permitted. When the discrimination means determines that the two pieces of personal information do not match, the external device determines whether the two pieces of personal information match. A communication terminal comprising: a wireless communication permission determining unit that does not permit wireless communication with a device. 2. The personal information storage means stores terminal information of an external device that has permitted the wireless communication, when the wireless communication permission determining means once permits the wireless communication. Communication terminal. 3. The personal information storage unit according to claim 2, wherein when the wireless communication permission determining unit does not permit wireless communication, the personal information storage unit stores terminal information of an external device that does not permit wireless communication. Communication terminal. 4. The communication terminal according to claim 1, wherein the personal information is at least one of a handwritten signature, a fingerprint, and a voice. 5. A wireless communication system including a plurality of communication terminals, wherein one of the communication terminals is a personal information input unit for inputting personal information, a personal information storage unit for storing the input personal information, Wireless communication means for wirelessly communicating with another one of the communication terminals; personal information stored in the personal information storage means; and personal information received from the other one of the communication terminals by the wireless communication means. Means for determining whether or not the two correspond to each other, and when the determination means determines that the two pieces of personal information match, the other one of the communication terminals
Wireless communication permission determination means for permitting wireless communication with one of the communication terminals and not permitting wireless communication with another one of the communication terminals when the determination means determines that the two pieces of personal information do not match. A wireless communication system, comprising: 6. The personal information storage means stores terminal information of a communication terminal which has permitted the wireless communication, when the wireless communication permission determining means once permits the wireless communication. Wireless communication system. 7. The personal information storage unit according to claim 6, wherein when the wireless communication permission determining unit does not permit wireless communication, the personal information storage unit stores terminal information of a communication terminal that does not permit wireless communication. Wireless communication system. 8. The wireless communication system according to claim 5, wherein the personal information is at least one of a handwritten signature, a fingerprint, and a voice.