JP4176396B2 - Mobile phone data backup system and mobile phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data backup system for a mobile phone and a mobile phone for backing up data stored in a memory of the mobile phone .
[0002]
[Prior art]
In recent years, with improvements in functions of mobile phones, data provided to mobile phones from providers or the like, or data stored in mobile phones by user input operations have been diversified, and the amount of these data has also increased. Yes. For this reason, when a mobile phone is lost or stolen, important data is often lost at the same time. Further, there is a possibility that a third party may illegally use a mobile phone or steal important data. Therefore, the user has contacted the mobile phone operator at such time to stop using the mobile phone or to prevent the data from being stolen. However, it often takes time to deal with the business side, and unfair use by a third party during that time could not be prevented.
[0003]
For this reason, for example, in Japanese Patent Laid-Open No. 2001-230858, 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. A technique is disclosed in which an illegal use prevention function execution command is executed after confirming a personal identification number on the mobile phone side to stop a transmission function and a display function of the mobile phone.
[0004]
[Problems to be solved by the invention]
However, even if the transmission function and display function of the mobile phone are stopped as described in the above publication, the data stored in the mobile phone is still lost, and the data can be reliably prevented from being stolen. Can not.
[0005]
For example, if the data of the mobile phone is transferred to the terminal device on the business operator side and stored before the transmission function or display function of the mobile phone is stopped, the data is not lost. However, it is unlikely that the operator's memory can be used indefinitely, and restrictions are naturally set in terms of data storage period and cost, and it is difficult to say that it is easy for users to use.
[0006]
Therefore, the present invention has been made in view of the above-described conventional problems, and when the mobile phone is lost or stolen, the data of the mobile phone can be reliably stored and is easily used by the user. An object of the present invention is to provide a data backup system for a mobile phone and a mobile phone .
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is provided in a mobile phone, a base station that performs radio communication with the mobile phone, an exchange connected to the base station, and a maintenance service center of the exchange, A control device that communicates with another terminal device through a base station, and a user terminal device connected to the control device through an exchange, and the control device is connected to the exchange on the user side The mobile terminal is accessed from the external terminal device through the switching center, and receives the telephone number, personal identification number, and data backup request of the mobile phone from the external terminal device. Using the received telephone number, the switching center and the base station The mobile phone is in communication with the mobile phone, and the received password and data backup request are transmitted to the mobile phone through the exchange and the base station. The mobile phone includes a storage means for storing a personal identification number of the cellular phone, an address of the user terminal device, and backup data, and a data processing unit, and the control device receives the personal identification number of the cellular phone and a data backup request. The data processing unit of the mobile phone collates the received personal identification number with the personal identification number in the storage means, and if the two personal identification numbers match, the storage means stores the address of the user terminal device and backup data. And using the read address, create a mail addressed to the user terminal device to which the read backup data is attached, and send the mail to the control device. The control device is addressed to the user terminal device. Is received from the mobile phone, the mail is transmitted to the user terminal device, and the user The terminal device receives the mail addressed to the user terminal from the control unit stores the backup data attached to the email.
[0008]
According to the present invention having such a configuration, in response to an external request, the mobile phone PIN and 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 personal identification number is confirmed on the mobile phone side, the backup data is transferred from the mobile phone to the user terminal device and stored. Therefore, if a request is issued to the control device when the mobile phone is lost or stolen, the backup data can be transferred from the mobile phone to the user terminal device and stored. User terminal devices include personal computers and personal digital assistants (PDAs). If backup data is stored here, there is no restriction in terms of data storage period or cost, and the user uses it. easy.
[0009]
In the present invention, the mobile phone transfers backup data to a plurality of user terminal devices and stores them.
[0010]
If the backup data is transferred to and stored in a plurality of user terminal devices in this way, the backup data can be reliably saved.
[0011]
Furthermore, in the present invention, the mobile phone has a memory that stores the addresses of a plurality of user terminal devices and the priority order of each user terminal device 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]
In this way, if a plurality of user terminal devices are selectively accessed according to their priorities, and backup data is transferred to and stored in user terminal devices with higher priorities, the backup data is more convenient for the user. It can be stored in the apparatus, and backup data can be reliably saved.
[0013]
In the present invention, if the backup data cannot be transferred to the user terminal device even after repeated accesses, the address of the next user terminal device is selected and used.
[0014]
Since the user terminal device does not always respond immediately, it is preferable to try multiple accesses.
[0015]
Furthermore, in the present invention, the mobile phone stops at least one of the call function and the display function of the mobile phone after transferring and storing the backup data to the user terminal device.
[0016]
If the call function and display function of the mobile phone are stopped after the backup data is transferred and stored in the user terminal device in this manner, the mobile phone can be prevented from being used illegally without losing the backup data.
[0017]
Further, in the present invention, the mobile phone transfers the backup data to the user terminal device and stores it, and then encrypts and stores the backup data.
[0018]
In this way, if the backup data is transferred to the user terminal device and stored, and then the backup data is encrypted and stored, the backup data can be prevented from being used illegally without erasing the backup data.
[0019]
Further, in the present invention, a flag indicating whether or not the backup data is a target of encryption is added in advance.
[0020]
In this way, if a flag indicating whether or not to be encrypted is added to the backup data, the data to be encrypted can be easily determined.
[0021]
DETAILED DESCRIPTION OF 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 of this embodiment includes a mobile phone 1, a radio base station 2 that performs radio communication with the mobile phone 1, an exchange 3 that is connected to the radio base station 2, and a control device 4 that is 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 line network, and user terminal devices 7 and 8 are provided.
[0023]
The mobile phone 1 can communicate with another mobile phone, a wired phone, a terminal device, and the like through the radio base station 2, the switching center 3, the line network, and the like. The wired telephone 5 and the user terminal devices 7 and 8 can communicate with other wired telephones, mobile phones, terminal devices, etc. through the exchange 3, the wireless base station 2, and the line network. it can. Further, the control device 4 is provided in the maintenance service center of the switching center 3, and communicates with other wired telephones, mobile phones, terminal devices, etc. through the switching center 3, the wireless base station 2, and the line network. Can be done.
[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 showing the configuration of the mobile phone 1. As shown in FIG. 2, the mobile phone 1 includes a communication control unit 11 that performs radio communication with the radio base station 2, a display device 12 that displays a telephone number and various data, and a read-only memory that stores various programs and data. A memory (hereinafter referred to as “ROM”) 13, a random access memory (hereinafter referred to as “RAM”) 14 that is used as a work area or stores various data, and a non-volatile storage that stores a transfer destination of backup data of the mobile phone 1. And a data processing unit 16 that controls the entire mobile phone 1.
[0026]
FIG. 3 is a block diagram showing the detailed function of the data processing unit 16 and the stored contents of the nonvolatile memory 15 in the mobile phone 1. As shown in FIG. 3, the contents stored in the nonvolatile memory 15 include backup data 151, addresses 152 of the user terminal devices 7 and 8 on the Internet indicating the transfer destination of the backup data, priority flags 153 of the addresses, There is a personal identification number 154 or the like. Of these, the address 152, the priority flag 153, and the personal identification number 154 are input and set in advance.
[0027]
As will be described later, the data processing unit 16 includes a personal identification number confirmation control unit 161 for collating the personal identification number received from the outside with the personal identification number 154 in the nonvolatile memory 15, and for transferring the backup data 151 to the user terminal device. Backup data transfer mail creation control section 162 that creates mail, data encryption processing section 163 that encrypts backup data 151 and personal identification number 154, and decrypts encrypted backup data 151 and personal identification number 154 based on And a data decoding processing unit 164 to be returned.
[0028]
In such a cellular phone 1, data provided from a provider or the like, data input by a user operation, and the like are stored in the nonvolatile memory 15. Among these data, important data is also included. Therefore, 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 call function and 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 cellular 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, after calling the control device 4 of the maintenance service center through the exchange 3 using the wired telephone 6, 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 reproduces a voice message prompting the user to input the telephone number and password of the mobile phone 1 by the voice response unit 4 a and transmits this voice message to the wired telephone 6. The user listens to the voice message, inputs the telephone number and the personal identification number of the mobile phone 1 by dial operation according to the voice message, and transmits them to the control device 4. When the telephone number and personal identification number of the cellular phone 1 are input, the control device 4 uses the telephone number of the cellular phone 1 to determine whether the cellular phone 1 is in a communicable state and the exchange 3 and the radio base station 2. If the mobile phone 1 is in a communicable state, the request for data backup and the personal identification number of the mobile phone 1 are transmitted to the mobile phone 1 through the line.
[0031]
In the cellular phone 1, the data backup request and the personal identification number of the cellular phone 1 are received by the communication control unit 11 and input to the data processing unit 16. Then, the personal identification number confirmation control unit 161 of the data processing unit 16 collates the personal identification number received from the control device 4 with the personal identification number 154 in the nonvolatile memory 15 (step S101 in FIG. 4). If the two passwords do not match (“No” in step S101), the data processing unit 16 transmits the password mismatch to the control device 4 and then disconnects the line without performing the subsequent processing. This communication is then terminated (step S102).
[0032]
If the two passwords match (“Yes” in step S101), the data processing unit 16 refers to the priority flag 153 of each address in the non-volatile memory 15, and addresses in the non-volatile memory 15 The address having the highest priority is selected from 152, 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 address with the highest priority, extracts the data in the non-volatile memory 15 to which the encryption flag is assigned in advance as the backup data 151, The backup data 151 is attached to the mail (step S103), and the communication control unit 11 is requested to transmit the mail (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. 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 this mail is not received by the destination user terminal device, a destination transfer impossible signal is transmitted from the control device 4 to the mobile phone 1, and this destination transfer impossible signal is sent to the data processing unit 16 of the mobile phone 1. It is input (“No” in step S105). When the data processing unit 16 inputs this destination transfer impossible signal, the data processing unit 16 decrements the preset number of re-communications by one and confirms that the number of re-communications is not zero (step S107). "No"), the control device 4 of the maintenance service center is requested to re-send the mail to the same destination (step S104), and this mail is transmitted from the control device 4 to the destination user terminal device. 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 mail is not received by the destination user terminal device (“No” in step S105), the destination transfer impossible signal is transmitted again from the control device 4 to the mobile phone 1, and the re-communication count is decremented by one again. If the number of re-communications is not 0 (“No” in step S107), the maintenance service center control device 4 is requested to re-send mail to the same destination (step S104). Therefore, unless this mail is received by the destination user terminal device, the transmission to the user terminal device having the same destination is repeated for the preset number of re-communications.
[0034]
Further, even if transmission is repeated for a preset number of re-communications, the number of re-communications becomes 0 if the mail is not received by the destination user terminal device (“Yes” in step S107). At this time, the data processing unit 16 refers again to the priority order flag 153 of each address in the non-volatile memory 15 and selects the second priority order address from the addresses 152 in the non-volatile memory 15. A mail creation request addressed to the 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 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 this mail is transmitted from the control device 4 to the destination user terminal device.
[0035]
Similarly, if the mail is not received by the destination user terminal device, steps S103, S104, S105, and S107 are repeated.
[0036]
For example, if the address “aaa@bbb.ccc.ddd” of the address 152 corresponds to the highest priority “1” of the priority flag 153, this address “aaa@bbb.ccc.ddd” is the destination. A mail is created, and backup data 151 is attached to the mail. If this address “aaa@bbb.ccc.ddd” belongs to the user terminal device 7, this mail is transmitted from the mobile phone 1 to the user terminal device 7 through the control device 4. Furthermore, if this mail is not received by the user terminal device 7, the transmission to the user terminal device 7 is repeated for the preset number of re-communications. Still, when this mail is not received by the user terminal device 7, the address “zzz@xxx.vvv.bbb” of the address 152 corresponding to the second priority “2” of the priority flag 153 is selected, Create a mail addressed to this address “zzz@xxx.vvv.bbb”, attach the backup data 151 to this mail, and this address “zzz@xxx.vvv.bbb” is the one of the user terminal device 8 If there is, this mail is transmitted from the mobile phone 1 to the user terminal device 8 through the control device 4. Furthermore, if this mail is not received by the user terminal device 8, the transmission to the user terminal device 8 is repeated for the preset number of re-communications. Similarly, if this mail is not received by the user terminal device 8, an 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 thus 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 be enabled (step S109).
[0039]
Further, when the transfer of the backup data 151 and the encryption of the backup data 151 and the personal identification number 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]
As described above, when the mobile phone 1 is lost or stolen, the backup data of the mobile phone 1 is transferred to the user terminal device and stored, or the backup data is encrypted and stored in the mobile phone 1. In addition, the call function and display function of the mobile phone 1 are stopped to prevent unauthorized use of the mobile phone 1.
[0041]
When the cellular phone 1 returns, the operation key of the cellular phone 1 is operated to input the personal identification number of the cellular phone 1. When the data processing unit 16 of the mobile phone 1 inputs this personal identification number, it activates the personal identification number confirmation control unit 161 and the data decryption processing unit 164. The data decryption processing unit 164 reads the encrypted personal identification number in the nonvolatile memory 15, combines the read personal identification number, and gives the decrypted personal identification number to the personal identification number confirmation control unit 161. The personal identification number confirmation control unit 161 collates the personal identification number input by operating the operation key with the decrypted personal identification number, and when the two personal identification numbers coincide with each other, the backup data and the personal identification number are decrypted by the data decryption process. The unit 164 is instructed. In response to this, the data decryption processing unit 164 decrypts the backup data and the personal identification number in the nonvolatile memory 15 and restores them to the original. At the same time, the data processing unit 16 releases the operation prohibition of the communication control unit 11 and the operation prohibition of the display device 12. Thereby, it becomes possible to use the mobile phone 1 as it is.
[0042]
Further, even if the operation input of the password is repeated a plurality of times, the input password and the decrypted password do not match, and the number of operation inputs is counted by the counter 161 a of the password verification control unit 161. When the counted value reaches a preset number of times, the data processing unit 16 disables the decryption of the backup data and the password, and prohibits the operation of the communication control unit 11 and the operation of the display device 12. Make it impossible to unlock. This completely prohibits unauthorized use of the mobile phone 1 by a third party.
[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 memory of another mobile phone that newly contracts the backup data from the recording medium. Just write in
[0044]
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 is easily and quickly transferred from the mobile phone to the user terminal device. Can be remembered. In addition, since the user terminal device is the property of the user, as long as backup data is stored here, there is no restriction in terms of data storage period or cost, and the backup data can be flexibly flexible for the convenience of the user. It can be stored in a disk or a magnetic card and taken out and is easy for the user to use.
[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 that is more convenient for the user.
[0047]
In addition, since the call function and display function of the mobile phone are stopped after the backup data is transferred to the user terminal device and stored, unauthorized use of the mobile phone can be prevented without losing the backup data.
[0048]
Further, since the backup data is encrypted and stored after the backup data is transferred and stored in the user terminal device, it is possible to prevent the backup data from being used inappropriately.
[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.
2 is a block diagram showing a configuration of a mobile phone in the system of FIG.
3 is a block diagram showing a detailed function of a data processing unit and stored contents of a nonvolatile memory in the mobile phone of FIG. 2;
4 is a flowchart showing a processing procedure performed by the mobile phone of FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mobile telephone 2 Wireless base station 3 Switching office 4 Control apparatus 5 Storage apparatus 6 Wired telephone 7, 8 User terminal apparatus 11 Communication control part 12 Display apparatus 13 Read-only memory (ROM)
14 Random access memory (RAM)
15 Nonvolatile memory 16 Data processing section

Claims (8)

A mobile phone, a base station that performs wireless communication with the mobile phone, an exchange connected to the base station, and a maintenance service center of the exchange, and communicates with other terminal devices through the exchange or the base station And a user terminal device connected to the control device through an exchange,
The control device is accessed through the exchange from an external terminal on the user side connected to the exchange, and receives the telephone number, password, and data backup request of the mobile phone from the external terminal. Then, using the received telephone number, the mobile phone is in communication with the mobile phone through the switching center and the base station, and the received personal identification number and data backup request are transmitted to the mobile phone through the switching center and the base station.
The mobile phone includes a storage means for storing a personal identification number of the cellular phone, an address of the user terminal device, and backup data, and a data processing unit, and the control device receives the personal identification number of the cellular phone and a data backup request. Received from
The data processing unit of the mobile phone collates the received personal identification number with the personal identification number in the storage means, and when the two personal identification numbers match, reads out the address and backup data of the user terminal device from the storage means, Using the read address, create a mail addressed to the user terminal device with the read backup data attached, and send the mail to the control device,
When the control device receives a mail addressed to the user terminal device from the mobile phone, the control device transmits the mail to the user terminal device,
The data backup system for a mobile phone, wherein the user terminal device receives a mail addressed to the user terminal device from the control device, and stores backup data attached to the mail. The storage means of the mobile phone stores addresses of a plurality of user terminal devices,
The data processing unit of the mobile phone collates the received personal identification number with the personal identification number in the storage unit, and when both personal identification numbers match, reads the address and backup data of each user terminal device from the storage unit, Using each read address, create a mail addressed to each user terminal device with the read backup data attached, and send a mail addressed to each user terminal device to the control device,
2. The mobile phone according to claim 1, wherein when the control device receives a mail addressed to each user terminal device from the mobile phone, the control device transmits the mail addressed to each user terminal device to each user terminal device. Phone data backup system. The storage means of the mobile phone stores the addresses of a plurality of user terminal devices and the priority order of each user terminal device,
The data processing unit of the mobile phone collates the received personal identification number with the personal identification number in the storage means, and when both personal identification numbers match, refer to the priority order of each user terminal device in the storage means, The user terminal device is selected in accordance with the priority order, the address and backup data of the selected user terminal device are read from the storage means, and the mail addressed to the user terminal device to which the read backup data is attached using the read address When the mail addressed to the user terminal device is transmitted to the control device and a notification that the mail cannot be transferred is received from the control device, the following is performed according to the priority of each user terminal device in the storage means. Select a user terminal device, create a mail addressed to the next selected user terminal device and send it to the control device,
When the control device receives a mail addressed to the user terminal device from the mobile phone, the control device transmits the mail addressed to the user terminal device to the user terminal device, and the mail addressed to the user terminal device is received by the user terminal device. If not, the mobile phone data backup system according to claim 1, wherein the mobile phone is notified that mail cannot be transferred.   If the data processing unit of the mobile phone receives notification from the control device that mail cannot be transferred even if the transmission of the mail addressed to the user terminal device is repeated a plurality of times, the priority order of each user terminal device 4. The data backup system for a mobile phone according to claim 3, wherein a next user terminal device is selected according to the above, a mail addressed to the next selected user terminal device is created and transmitted to the control device.   The data processing unit of the mobile phone stops at least one of a call function and a display function of the mobile phone after transmitting a mail addressed to a user terminal device to the control device. Mobile phone data backup system.   The data processing unit of the mobile phone encrypts the backup data attached to the mail and saves it in a storage unit after transmitting the mail addressed to the user terminal device to the control device. Mobile phone data backup system. The backup data is pre-assigned with a flag indicating whether or not it is an encryption target,
7. The data backup unit for a mobile phone according to claim 6, wherein the data processing unit of the mobile phone encrypts backup data indicated by the flag to be encrypted and stores it in a storage unit. system. In a mobile phone that is connected to a base station by wireless communication and performs data communication with the control device of the maintenance service center of the exchange through the base station and the exchange ,
The mobile phone includes a storage means for storing a personal identification number of the mobile phone, an address of a user terminal device, and backup data, and a data processing unit, and transmits the personal identification number of the mobile phone and a data backup request to the exchange. Received from the external terminal device on the user side connected to the line through the control device,
The data processing unit of the mobile phone collates the received personal identification number with the personal identification number in the storage means, and when the two personal identification numbers match, reads out the address and backup data of the user terminal device from the storage means, A cellular phone characterized in that a mail addressed to the user terminal device to which the read backup data is attached is created using the read address, and the mail is transmitted to the user terminal device through the control device .

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