JP2004032402A - Data backup system for portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely store the data of a portable telephone when it is lost or stolen. <P>SOLUTION: When a portable telephone 1 is lost or stolen, requests of a password number and data backup of the telephone 1 are transmitted from a wired telephone 6 to the telephone 1 through a controller 4. The telephone 1 transfers the backup data to a user terminal unit through the controller 4 and stores it, or the data is encrypted and stored in the telephone 1. Illegal use of the telephone 1 is prevented by stopping a speech function and a display function of the telephone 1. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile phone data backup system for backing up data stored in a memory of a mobile phone.
[0002]
[Prior art]
In recent years, along with the improvement of functions of mobile phones, data provided from a provider or the like to the mobile phone or data stored in the mobile phone by user's input operation has been diversified. I have. Therefore, when a mobile phone is lost or stolen, important data is often lost at the same time. In addition, there is a possibility that a third party may illegally use the mobile phone or steal important data. Therefore, at such times, the user has contacted the mobile phone operator to stop using the mobile phone or to prevent data theft. However, it often takes time for the business to respond, and it has not been possible to prevent unauthorized use by a third party during that time.
[0003]
For this reason, for example, JP-A-2001-230858 discloses that when a mobile phone is lost or stolen, an unauthorized use prevention function execution command and a password are transmitted from the network control device to the mobile phone through the exchange and the base station. There is disclosed a technique in which a mobile phone side confirms a password and then executes an unauthorized use prevention function execution command to stop the transmission function and display function of the mobile phone.
[0004]
[Problems to be solved by the invention]
However, even if the transmission function and the display function of the mobile phone are stopped as described in the above-mentioned publication, the data stored in the mobile phone is still lost, and the data can be securely prevented from being stolen. Can not.
[0005]
For example, if the data of the mobile phone is transferred to and stored in the terminal device of the business operator before the calling function and the display function of the mobile phone are stopped, the data is not lost. However, it is difficult to imagine that the memory on the business side can be used without limit, and it is considered that restrictions are naturally set in terms of the data storage period and cost, and it is hard to say that the user is easy to use.
[0006]
In view of the above, the present invention has been made in view of the above-mentioned conventional problems. When a mobile phone is lost or stolen, the data of the mobile phone can be securely stored, and the user can easily use the data. It is an object to provide a data backup system for a mobile phone.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a mobile phone, a base station that performs wireless communication with the mobile phone, an exchange connected to the base station, a control device connected to the exchange, and a mobile phone. The control device includes a base station and a user terminal device connected through the exchange. The control device responds to a request from the outside through the exchange, and transmits a personal identification number and a data backup request of the mobile phone through the exchange and the base station. The mobile phone stores the password of the mobile phone in advance when the mobile phone stores the password of the mobile phone and a data backup request from the control device. The backup data is transferred to the user terminal device through the base station and the exchange and stored when the passwords match each other.
[0008]
According to the present invention having such a configuration, in response to a request from the outside, the personal identification number of the mobile phone and a data backup request are transmitted and received from the control device to the mobile phone, and in response to the data backup request, After the mobile phone confirms the password, the backup data is transferred from the mobile phone to the user terminal device and stored. Therefore, if the mobile phone is lost or stolen, if a request is issued to the control device, the backup data can be transferred from the mobile phone to the user terminal device and stored. As the user terminal device, there is a personal computer, a personal digital assistant (PDA), or the like. If backup data is stored here, there is no restriction on the data storage period or cost, and the user can use it. easy.
[0009]
Further, in the present invention, the mobile phone transfers and stores the backup data to a plurality of user terminal devices.
[0010]
If the backup data is transferred to a plurality of user terminal devices and stored, the backup data can be reliably stored.
[0011]
Further, in the present invention, the mobile phone has a memory in which addresses of a plurality of user terminal devices and priority of each of the user terminal devices are stored in association with each other. Then, the mobile phone accesses the user terminal device by selecting and using the address of the user terminal device according to the priority order of each user terminal device, and transfers and stores the backup data to the user terminal device, If the backup data cannot be transferred to the user terminal device, the address of the next user terminal device is selected and used according to the priority of each user terminal device.
[0012]
By selectively accessing a plurality of user terminal devices according to their priorities and transferring and storing the backup data to a user terminal device having a higher priority, backup data can be stored in a user terminal which is more convenient for the user. The data can be stored in the device, and the backup data can be reliably stored.
[0013]
Further, in the present invention, if backup data cannot be transferred to the user terminal device even if access is repeated a plurality of times, the address of the next user terminal device is selected and used.
[0014]
Since the user terminal does not always respond immediately, it is preferable to try the access a plurality of times.
[0015]
Further, in the present invention, after transferring and storing the backup data to the user terminal device, the mobile phone stops at least one of the call function and the display function of the mobile phone.
[0016]
If the call function and the display function of the mobile phone are stopped after the backup data is transferred to the user terminal device and stored, the backup data is not lost and the unauthorized use of the mobile phone can be prevented.
[0017]
Further, in the present invention, the mobile phone transmits the backup data to the user terminal device and stores it, and then stores the encrypted backup data in an encrypted form.
[0018]
By transferring the backup data to the user terminal device and storing it after encrypting and storing the backup data in this way, unauthorized use of the backup data can be prevented without erasing the backup data.
[0019]
Further, in the present invention, a flag indicating in advance whether or not the data is to be encrypted is added to the backup data.
[0020]
In this way, if a flag indicating whether or not the data is to be encrypted is added to the backup data, the data to be encrypted can be easily determined.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0022]
FIG. 1 is a block diagram showing an embodiment of a data backup system for a mobile phone according to the present invention. The system according to the present embodiment includes a mobile phone 1, a radio base station 2 that performs radio communication with the mobile phone 1, an exchange 3 connected to the radio base station 2, and a control device 4 connected to the exchange 3. , A storage device 5 for storing various data, a general wired telephone 6 connected to the exchange 3 through a circuit network, and user terminal devices 7 and 8.
[0023]
The mobile phone 1 can communicate with another mobile phone, a wired telephone, a terminal device, or the like via the wireless base station 2, the exchange 3, and a network. Further, the wired telephone 5 and each of the user terminal devices 7 and 8 can communicate with another wired telephone, a mobile telephone, a terminal device, and the like through the exchange 3, the wireless base station 2, and a line network. it can. Further, the control device 4 is provided at the maintenance service center of the exchange 3, and communicates with the exchange 3, the wireless base station 2, and other wired telephones, mobile telephones, terminal devices, and the like through the line network and the like. Can do it.
[0024]
Each of the user terminal devices 7 and 8 is used by a user of the mobile phone 1, and is, for example, a personal digital assistant (PDA) or a personal computer capable of performing Internet communication.
[0025]
FIG. 2 is a block diagram illustrating a configuration of the mobile phone 1. As shown in FIG. 2, the mobile phone 1 includes a communication control unit 11 for performing wireless communication with the wireless base station 2, a display device 12 for displaying a telephone number and various data, and a read-only for storing various programs and data. A memory (hereinafter referred to as a ROM) 13, a random access memory (hereinafter referred to as a RAM) 14 used as a work area or storing various data, and a nonvolatile memory storing a transfer destination of backup data of the mobile phone 1 and the like Memory 15 and a data processing unit 16 that controls the entire mobile phone 1.
[0026]
FIG. 3 is a block diagram showing the detailed functions of the data processing unit 16 and the contents stored in the nonvolatile memory 15 in the mobile phone 1. As shown in FIG. 3, the storage contents of the non-volatile memory 15 include backup data 151, addresses 152 of the user terminal devices 7 and 8 on the Internet indicating a transfer destination of the backup data, a priority flag 153 of each address, There is a password 154 and the like. Of these, the address 152, the priority flag 153, and the password 154 are input and set in advance.
[0027]
The data processing section 16 includes a password confirmation control section 161 for comparing the password received from the outside with the password 154 in the nonvolatile memory 15 and a backup data 151 for transferring the backup data 151 to the user terminal device as described later. A backup data transfer mail creation control unit 162 for creating a mail, a data encryption processing unit 163 for encrypting the backup data 151 and a password 154, and a decrypted backup data 151 and a password 154, And a data decryption processing unit 164 to be returned.
[0028]
Now, in such a mobile phone 1, data provided by a provider or the like, data input by a user operation, and the like are stored in the nonvolatile memory 15. Since important data is included in these data, when the mobile phone 1 is lost or stolen, it is necessary to prevent such important data from being lost or stolen. Therefore, in the system of the present embodiment, when the mobile phone 1 is lost or stolen, the data of the mobile phone 1 is transferred to the user terminal device and stored, or the data is encrypted and stored in the mobile phone 1. Saved. In addition, the communication function and the display function of the mobile phone 1 are stopped to prevent unauthorized use of the mobile phone 1.
[0029]
Next, a processing procedure when the mobile phone 1 is lost or stolen will be described with reference to the flowchart shown in FIG.
[0030]
First, when the mobile phone 1 is lost or stolen, the user of the mobile phone 1 accesses the control device 4 of the maintenance service center using a general wired phone 6 or another mobile phone. For example, using the wired telephone 6, the control device 4 of the maintenance service center is called through the switching center 3, and then a dial number indicating a data backup request is transmitted from the wired telephone 6 to the control device 4. In response to this, the control device 4 plays back a voice message prompting the input of the telephone number and the password of the mobile phone 1 in the voice response section 4 a and transmits this voice message to the wired telephone 6. The user listens to the voice message, inputs a telephone number and a personal identification number of the mobile phone 1 by a dial operation according to the voice message, and transmits the input to the control device 4. When inputting the telephone number and the password of the mobile phone 1, the control device 4 uses the telephone number of the mobile phone 1 to determine whether or not the mobile phone 1 is in a communicable state with the exchange 3 and the radio base station 2. When the mobile phone 1 is in a communicable state, the data backup request and the personal identification number of the mobile phone 1 are transmitted to the mobile phone 1 through the line.
[0031]
In the mobile phone 1, the data backup request and the password of the mobile phone 1 are received by the communication control unit 11 and input to the data processing unit 16. Then, the password confirmation control unit 161 of the data processing unit 16 collates the password received from the control device 4 with the password 154 in the nonvolatile memory 15 (Step S101 in FIG. 4). If the passwords do not match ("No" in step S101), the data processing unit 16 transmits a mismatch between the passwords to the control device 4, and then cuts off the line without performing the subsequent processing. Then, this communication ends (step S102).
[0032]
If the two passwords match (“Yes” in step S 101), the data processing unit 16 refers to the priority flag 153 of each address in the nonvolatile memory 15 and refers to the address in the nonvolatile memory 15. 152, the address having the highest priority is selected, and a mail creation request addressed to this address is sent to the backup data transfer mail creation control unit 162. The backup data transfer mail creation control unit 162 creates a mail addressed to the highest priority address, extracts data in the nonvolatile memory 15 to which the encryption flag has been added in advance as the backup data 151, and The backup data 151 is attached to the mail (step S103), and transmission of this mail is requested to the communication control unit 11 (step S104). The communication control unit 11 transmits this mail to the control device 4 of the maintenance service center. The control device 4 transmits this mail to the destination user terminal device. Then, when this mail is received by the destination user terminal device ("Yes" in step S105), the transfer of the backup data 151 is completed (step S106).
[0033]
If the e-mail is not received by the destination user terminal device, a destination transfer disable signal is transmitted from the control device 4 to the mobile phone 1, and the destination transfer disable signal is sent to the data processing unit 16 of the mobile phone 1. It is input ("No" in step S105). When the data transfer unit 16 receives the destination transfer disable signal, it decrements the preset number of retransmissions by one and confirms that the number of retransmissions has not become zero (step S107). ("No"), request the control device 4 of the maintenance service center to resend the mail to the same destination (step S104), and cause the control device 4 to send the mail to the destination user terminal device. Then, when this mail is received by the destination user terminal device ("Yes" in step S105), the transfer of the backup data 151 is completed (step S106). If this e-mail is not received by the destination user terminal device ("No" in step S105), a destination transfer disable signal is transmitted again from control device 4 to mobile phone 1, and the number of retransmissions is decremented by one again. If the number of retransmissions does not become 0 (“No” in step S107), retransmission of the mail to the same destination is requested to the control device 4 of the maintenance service center (step S104). Therefore, unless this mail is received by the destination user terminal device, transmission to the same destination user terminal device is repeated by the preset number of retransmissions.
[0034]
Further, even if transmission is repeated for the preset number of retransmissions, if this mail is not received by the destination user terminal device, the number of retransmissions becomes 0 ("Yes" in step S107). At this time, the data processing unit 16 again refers to the priority flag 153 of each address in the non-volatile memory 15 and selects the second priority address from the addresses 152 in the non-volatile memory 15. A request to create a mail addressed to the address is issued to the backup data transfer mail creation control unit 162. The backup data transfer mail creation control unit 162 creates a mail addressed to this second priority address, attaches the backup data 151 to the mail (step S103), and transmits the mail to the communication control unit 11 (Step S104), and the control device 4 transmits the mail to the destination user terminal device.
[0035]
Thereafter, similarly, if the mail is not received by the destination user terminal device, the steps S103, S104, S105, and S107 are repeated.
[0036]
For example, assuming that the address “aaa@bbb.ccc.ddd” of the address 152 corresponds to the highest priority “1” of the priority flag 153, the address “aaa@bbb.ccc.ddd” is set as the destination. A mail is created, and the backup data 151 is attached to the mail. If the address “aaa@bbb.ccc.ddd” belongs to the user terminal device 7, the mail is transmitted from the mobile phone 1 to the user terminal device 7 through the control device 4. Further, if the mail is not received by the user terminal device 7, the transmission to the user terminal device 7 is repeated by a preset number of re-communications. If the mail is not received by the user terminal device 7 yet, the address “zzz@xxx.vvv.bbb” of the address 152 corresponding to the second priority “2” of the priority flag 153 is selected, A mail addressed to this address “zzz@xxx.vvv.bbb” is created, and the backup data 151 is attached to the mail. If so, this mail is transmitted from the mobile phone 1 to the user terminal device 8 through the control device 4. Further, if the mail is not received by the user terminal device 8, the transmission to the user terminal device 8 is repeated by a preset number of retransmissions. Similarly, if the mail is not received by the user terminal device 8, the address corresponding to the next priority is selected and the mail is transmitted to the user terminal device of the address.
[0037]
When a plurality of addresses are set corresponding to one priority, each mail is created for each address, and these mails are transmitted to the user terminal device of each address.
[0038]
When the transfer of the backup data 151 is completed (Step S106), the data processing unit 16 activates the data encryption processing unit 163. The data encryption processing unit 163 encrypts the backup data 151 and the personal identification number 154 in the nonvolatile memory 15 (Step S108), and sets the encryption flag assigned to the backup data 151 to enable (Step S109).
[0039]
Further, when the transfer of the backup data 151 and the encryption of the backup data 151 and the password 154 are completed, the data processing unit 16 prohibits the operation of the communication control unit 11 and the operation of the display device 12 (step S110).
[0040]
When the mobile phone 1 is lost or stolen in this way, the backup data of the mobile phone 1 is transferred to and stored in the user terminal device, or the backup data is encrypted and stored in the mobile phone 1. In addition, the communication function and the display function of the mobile phone 1 are stopped to prevent unauthorized use of the mobile phone 1.
[0041]
When the mobile phone 1 returns, the user operates the operation keys of the mobile phone 1 and inputs the password of the mobile phone 1. Upon inputting the password, the data processing unit 16 of the mobile phone 1 activates the password confirmation control unit 161 and the data decryption processing unit 164. The data decryption processing unit 164 reads the encrypted password in the nonvolatile memory 15, decrypts the read password, and provides the decrypted password to the password confirmation control unit 161. The security code confirmation control unit 161 checks the security code input by operating the operation key with the decrypted security code, and if the security codes of both passwords match, decrypts the backup data and the security code. Instruct the unit 164. In response, the data decryption processing unit 164 decrypts the backup data and the password in the non-volatile memory 15 and restores them. At the same time, the data processing unit 16 releases the prohibition of the operation of the communication control unit 11 and the prohibition of the operation of the display device 12. Thereby, the mobile phone 1 can be used as before.
[0042]
Further, even if the input operation of the personal identification number is repeated a plurality of times, the input personal identification number does not match the decrypted personal identification number, and the number of the operation input is counted by the counter 161a of the personal identification number confirmation control unit 161. When the count value reaches a preset number, the data processing unit 16 disables the decryption of the backup data and the password, and inhibits the operation of the communication control unit 11 and the operation of the display device 12. Disable cancellation. As a result, unauthorized use of the mobile phone 1 by a third party is completely prohibited.
[0043]
If the mobile phone 1 does not return, for example, the backup data is stored in a recording medium such as a flexible disk or a magnetic card from the user terminal device, and the backup data is further stored from the recording medium in the memory of another mobile phone newly contracted. Just write it in
[0044]
Note that the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the scope of the claims.
[0045]
【The invention's effect】
As described above, according to the present invention, when a mobile phone is lost or stolen, if a request is issued to the control device, the backup data can be easily and quickly transferred from the mobile phone to the user terminal device. Can be memorized. In addition, since the user terminal device is the property of the user, as long as the backup data is stored here, there is no restriction on the data storage period or cost, and the backup data can be flexibly stored for the convenience of the user. It can be stored in a disk or a magnetic card and taken out, so that the user can easily use it.
[0046]
Further, since the backup data is transferred to and stored in the user terminal device having a higher priority, the backup data can be stored in the user terminal device which is more convenient for the user.
[0047]
In addition, since the call function and the display function of the mobile phone are stopped after the backup data is transferred to the user terminal device and stored, the unauthorized use of the mobile phone can be prevented without losing the backup data.
[0048]
Further, after the backup data is transferred to the user terminal device and stored therein, the backup data is encrypted and stored, so that unauthorized use of the backup data can be prevented.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a data backup system for a mobile phone according to the present invention.
FIG. 2 is a block diagram showing a configuration of a mobile phone in the system of FIG.
FIG. 3 is a block diagram showing detailed functions of a data processing unit and storage contents of a nonvolatile memory in the mobile phone shown in FIG. 2;
FIG. 4 is a flowchart showing a processing procedure by the mobile phone of FIG. 2;
[Explanation of symbols]
Reference Signs List 1 mobile phone 2 radio base station 3 exchange 4 control device 5 storage device 6 wired telephone 7, 8 user terminal device 11 communication control unit 12 display device 13 read-only memory (ROM)
14. Random access memory (RAM)
15 Non-volatile memory 16 Data processing unit

Claims (8)

A mobile phone, a base station that performs wireless communication with the mobile phone, an exchange connected to the base station, a control device connected to the exchange, and a user terminal device connected to the mobile phone through the base station and the exchange. With
The controller transmits a personal identification number and a data backup request of the mobile phone to the mobile phone through the exchange and the base station in response to a request from the outside through the exchange,
The mobile phone stores the personal identification number of the mobile telephone in advance, and upon receiving the personal identification number and the data backup request from the control device, compares the received personal identification number with the previously stored personal identification number. A data backup system for a mobile phone, wherein the backup data is transferred to the user terminal device through the base station and the exchange and stored when the passwords coincide with each other. The mobile phone data backup system according to claim 1, wherein the mobile phone transfers the backup data to a plurality of user terminal devices and stores the data. 2. The data backup system for a mobile phone according to claim 1, wherein the mobile phone has a memory in which addresses of a plurality of user terminal devices and a priority of each of the user terminal devices are stored in association with each other. The mobile phone accesses the user terminal device by selecting and using the address of the user terminal device according to the priority order of each user terminal device, transfers the backup data to the user terminal device, stores the backup data, and 4. The data of the mobile phone according to claim 3, wherein, if the user terminal device cannot be transferred to the user terminal device, the address of the next user terminal device is selected and used according to the priority order of each user terminal device. Backup system. 5. The mobile phone according to claim 4, wherein if backup data cannot be transferred to the user terminal device even if access is repeated a plurality of times, an address of the next user terminal device is selected and used. Data backup system. The mobile phone according to claim 1, wherein the mobile phone stops at least one of a call function and a display function of the mobile phone after transferring and storing the backup data to the user terminal device. system. 2. The data backup system for a mobile phone according to claim 1, wherein the mobile phone encrypts and stores the backup data after transferring and storing the backup data to the user terminal device. 8. The data backup system according to claim 7, wherein a flag indicating whether or not the data is to be encrypted is added to the backup data in advance.

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