JP2010086281A - Portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal which, even when a password manager restricting a change in setting of a crime prevention function is in a remote place, allows a user to optimally release password lock. <P>SOLUTION: In the portable terminal, a control part uses first authentication information to lock a function provided in the portable terminal; and a radio communication part for the portable telephone transmits to first equipment E-mail including at least lock release request instruction information while the function provided for the portable terminal is locked and receives E-mail including at least second authentication information from the first equipment. The control part extracts the second authentication information included in the received E-mail, determines whether or not the second authentication information matches the first authentication information while the extracted second authentication information is not displayed, and releases the locked function which is provided for the portable terminal when it is determined that the second authentication information matches the first authentication information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable terminal, and more particularly to a portable terminal equipped with a crime prevention function.

  In recent years, crimes such as kidnapping and kidnapping aimed at children and women have increased, and various crime prevention functions such as mobile phones for children are installed to protect children and women from these crimes. An improved mobile phone has been proposed.

  In mobile phones that are not equipped with security functions, in order to prevent important settings from being altered by others, it is generally required to enter a password when changing important settings. Restrictions are made using input. Among the mobile phones equipped with the security function described above, mobile phones for relatively young students are also included. In the case of such a mobile phone, a mobile phone not equipped with the security function is included. Using a different password (hereinafter referred to as “parent password”) that restricts important settings from being changed in the mobile phone, in addition to restricting important settings on the mobile phone, changes to the security function settings are restricted. . The reason why the parental password is used to limit the change in the security function setting is to prevent children with poor management and judgment skills from changing the security function setting intentionally or carelessly. This is to maintain the effectiveness of the crime prevention function mounted on the mobile phone.

The following techniques are known as techniques related to passwords (see, for example, Patent Document 1). According to the technique proposed in Patent Document 1, when the client device is PIN-locked, the random number A obtained by randomizing the user identification number U and the user identification number U of the user are transmitted to the remote administrator, and the administrator After verifying that the person who entered the random number A and the user identification number U into the PIN unlocking device and notified the user is a legitimate user, creates a code B in which the administrator PIN is encrypted and uses this The administrator PIN can be obtained by releasing the PIN lock when the user inputs the code B to the client device. As a result, even if the user and the administrator are separated from each other, the PIN lock of the user's IC card can be easily released without the third party knowing the unlock password.
Japanese Patent Laid-Open No. 2003-157412

  When using a parent password to restrict changes to the security function settings on a mobile phone, if the administrator who manages the parent password (such as a parent) does not exist near the child's mobile phone, even if the child is legitimate Even if it is desired to change the setting of the security function, the setting of the security function cannot be changed, which causes inconvenience for the child who is the user. Specifically, as a setting related to the crime prevention function, for example, an emergency contact for sending mail or sending in an emergency is preset, so that the emergency contact list is not intentionally or inadvertently modified by a child. The use of the phone book function itself with a list of emergency contacts is restricted. However, for example, even when a child desires to add a friend's mail address, the friend's mail address cannot be added to the phone book because the telephone book function cannot be used.

  The present invention has been made in view of such a situation, and even when a password manager for restricting a change in the setting of the crime prevention function is in a remote place, the password lock is suitably used. An object is to provide a portable terminal that can be released.

  In order to solve the above-described problem, the mobile terminal of the present invention uses the first authentication information to lock the function provided in the mobile terminal, and the function provided in the mobile terminal is locked by the lock means. In this state, a mail transmitting means for transmitting to the first device at least mail including lock release request instruction information for instructing a request for unlocking a function provided in the mobile terminal, and mail including at least second authentication information Mail receiving means received from the first device, second authentication information included in the mail received by the mail receiving means is extracted, and the second authentication information is hidden while the extracted second authentication information is not displayed. Authentication information determination means for determining whether or not the information matches the first authentication information, and when the authentication information determination means determines that the second authentication information matches the first authentication information, Characterized in that it comprises a lock release means for releasing the locking function provided in strip terminal.

  According to the present invention, even when a password manager for restricting a change in the setting of the crime prevention function is in a remote place, the lock by the password can be preferably released.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1A and FIG. 1B are external perspective views of a mobile phone 1 applicable to a mobile terminal according to the present invention. As shown in FIGS. 1A and 1B, the mobile phone 1 has a first housing 12 and a second housing 13 that are hinge-coupled with a hinge 11 at the center as a boundary. It is formed to be openable / closable (foldable) in the direction of the arrow X via the portion 11. A transmitting / receiving antenna (antenna 31 in FIG. 2 to be described later) is provided at a predetermined position inside the mobile phone 1, and radio waves are transmitted to and received from a base station (not shown) via the built-in antenna. To do. In addition, a speaker 14 is provided as a sound output means for outputting sound to the outside at the center position of the second housing. Further, a side key 15 for operating the mobile phone 1 is provided in the first casing.

  Further, a security buzzer switch 16 is provided at a predetermined position of the second casing 13, and a pull-top tab 17 is attached to the security buzzer switch 16. When the pull-top tab 17 is attached to the security buzzer switch 16, the pull-top tab 17 is wound around the opening M of the security buzzer switch 16. As shown in FIG. 1B, when the pull-top tab 17 attached to the security buzzer switch 16 is pulled in the direction of the arrow P, the security buzzer switch 16 is moved through a guide body (guide body) (not shown). 2 is slid in the surface direction with respect to the housing 13. At that time, the security buzzer is output from the speaker 14 as the security buzzer switch 16 is pressed (slid). As shown in FIG. 1A, the security buzzer switch 16 is slid in the reverse direction of the arrow P direction by the user and pulled up to be attached to the second housing 13 and returned to its original position. Return. At this time, the output of the security buzzer from the speaker 14 is stopped.

  FIG. 2 shows an internal configuration of the mobile phone 1 applicable to the mobile terminal according to the present invention. A radio signal transmitted from a base station (not shown) is received by an antenna 31 and then input to a receiving circuit (RX) 33 via an antenna duplexer (DUP) 32. The receiving circuit 33 mixes the received radio signal with the local oscillation signal output from the frequency synthesizer (SYN) 34 and converts the frequency into an intermediate frequency signal (down-conversion). Then, the reception circuit 33 orthogonally demodulates the down-converted intermediate frequency signal and outputs a reception baseband signal. The frequency of the local oscillation signal generated from the frequency synthesizer 34 is instructed by a control signal SYC output from the control unit 41.

  The reception baseband signal from the reception circuit 33 is input to the CDMA signal processing unit 36. The CDMA signal processing unit 36 includes a RAKE receiver (not shown). In this RAKE receiver, a plurality of paths included in the received baseband signal are despread with each spreading code (that is, the same spreading code as that of the spread received signal). Then, the signals of the respective paths subjected to the despreading process are subjected to coherent Rake synthesis after the phase is adjusted. The data sequence after Rake combining is subjected to deinterleaving and channel decoding (error correction decoding), and then binary data determination is performed. Thereby, received packet data of a predetermined transmission format is obtained. This received packet data is input to the compression / decompression processor 37.

  The compression / decompression processing unit 37 is configured by a DSP (Digital Signal Processor) or the like, and the received packet data output from the CDMA signal processing unit 36 is separated for each medium by a demultiplexing unit (not shown). Each is decrypted. For example, in the call mode, audio data corresponding to call voice included in the received packet data is decoded by a speech codec. Also, if the received packet data includes moving image data, such as the videophone mode, this moving image data is decoded by a video codec. Further, if the received packet data is a download content, the download content is decompressed, and then the decompressed download content is output to the control unit 41.

  The digital audio signal obtained by the decoding process is supplied to the PCM codec 38. The PCM codec 38 performs PCM decoding on the digital audio signal output from the compression / decompression processing unit 37 and outputs the analog audio signal after PCM decoding to the reception amplifier 39. The analog audio signal is amplified by the reception amplifier 39 and then output from the receiver 19.

  The digital moving image signal decoded by the video codec by the compression / decompression processing unit 37 is input to the control unit 41. The control unit 41 displays a moving image based on the digital moving image signal output from the compression / decompression processing unit 37 on the main display 22 via a video RAM (for example, a VRAM) (not shown). The control unit 41 can display not only the received moving image data but also the moving image data captured by the CCD camera 24 on the main display 22 via a video RAM (not shown).

  Further, when the received packet data is an electronic mail, the compression / decompression processing unit 37 supplies the electronic mail to the control unit 41. The control unit 41 stores the electronic mail supplied from the compression / decompression processing unit 37 in the storage unit 42. Then, the control unit 41 reads out the electronic mail stored in the storage unit 42 in accordance with the operation of the operation key 21 as the input unit by the user, and displays the read electronic mail on the main display 22.

  On the other hand, in the call mode, the voice signal (analog audio signal) of the speaker (user) input to the microphone 20 is amplified to an appropriate level by the transmission amplifier 40 and then PCM encoded by the PCM codec 38. The digital audio signal after the PCM encoding is input to the compression / decompression processing unit 37. The moving image signal output from the CCD camera 24 is digitized by the control unit 41 and input to the compression / decompression processing unit 37. Further, an electronic mail which is text data created by the control unit 41 is also input to the compression / decompression processing unit 37.

  The compression / decompression processor 37 compresses and encodes the digital audio signal output from the PCM codec 38 in a format corresponding to a predetermined transmission data rate. Thereby, audio data is generated. The compression / decompression processing unit 37 compresses and encodes the digital moving image signal output from the control unit 41 to generate moving image data. Then, the compression / decompression processing unit 37 multiplexes these audio data and moving image data by a demultiplexing unit (not shown) according to a predetermined transmission format and then packetizes them, and the packetized transmission packet data is transmitted to the CDMA signal processing unit 36. Output to. Note that the compression / decompression processing unit 37 also multiplexes the e-mail into the transmission packet data even when the e-mail is output from the control unit 41.

  The CDMA signal processing unit 36 performs spread spectrum processing on the transmission packet data output from the compression / decompression processing unit 37 using a spreading code assigned to the transmission channel, and transmits the output signal after the spread spectrum processing to the transmission circuit ( TX) 35. The transmission circuit 35 modulates the signal after the spread spectrum processing using a digital modulation method such as a QPSK (Quadrature Phase Shift Keying) method. The transmission circuit 35 combines the digitally modulated transmission signal with a local oscillation signal generated from the frequency synthesizer 34 and frequency-converts (up-converts) the signal into a radio signal. Then, the transmission circuit 35 amplifies the radio signal generated by this up-conversion with high frequency so that the transmission power level instructed by the control unit 41 is obtained. The radio signal amplified by this high frequency is supplied to the antenna 31 via the antenna duplexer 32 and transmitted from the antenna 31 to the base station.

  In addition, the mobile phone 2 includes an external memory interface 45. The external memory interface 45 has a slot into which the memory card 46 can be attached and detached. The memory card 46 is a type of flash memory card typified by a NAND flash memory card or a NOR flash memory card, and can write and read various data such as images, sounds and music via a 10-pin terminal. It has become. Further, the mobile phone 1 is provided with a clock circuit (timer) 47 for measuring the current time.

  The control unit 41 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU is loaded into the RAM from the program stored in the ROM or the storage unit 42. Various processes are executed in accordance with various application programs, and various control signals are generated and supplied to each unit to control the mobile phone 2 in an integrated manner. The RAM appropriately stores data necessary for the CPU to execute various processes.

  The storage unit 42 is composed of, for example, a flash memory element or HDD (Hard Disc Drive) which is a non-volatile memory that can be electrically rewritten and erased, and various application programs executed by the CPU of the control unit 41 and various types. The data group is stored. The power supply circuit 44 generates a predetermined operating power supply voltage Vcc based on the output of the battery 43 and supplies it to each circuit unit.

  A GPS wave (GPS information) from a GPS satellite (not shown) is received by the GPS antenna 18. This GPS information includes, for example, transmission time information from each GPS satellite. Thereafter, the GPS information is input to the control unit 41 via the CDMA signal processing unit 36. Then, the control unit 41 calculates position information (latitude and longitude information) indicating the current location of the mobile phone 1 using the acquired GPS information (for example, it is desirable to calculate from 3 to 4 GPS information). ), Position information indicating the current location of the mobile phone 1 is obtained. In general, latitude and longitude are acquired as position information obtained based on the GPS information, but address information corresponding to latitude and longitude may be acquired. When acquiring latitude / longitude and address information corresponding to the latitude / longitude, the address information may be obtained by accessing an external server (not shown).

  For example, when the security buzzer is output from the speaker 14 when the security buzzer switch 16 is pressed (slide), the position information based on the GPS positioning is acquired, the mail is created using the position information based on the GPS positioning, The created mail can be transmitted to another mobile phone 1 or the like via the CDMA signal processing unit 36, the antenna 31, or the like.

  The infrared communication unit 48 performs wireless communication using infrared rays, and transmits data from the control unit 41 to other devices via URAT (Universal Asynchronous Receiver Transmitter) via infrared rays and transmitted from other devices. Data is received via URAT.

  The Bluetooth communication unit 49 performs wireless communication using Bluetooth (registered trademark), and performs wireless communication with other devices (for example, other mobile phones 1) existing in the vicinity of the mobile phone 1. Note that the control unit 41 uses a communication protocol such as OBEX (Object Exchange), RFCOMM (RS232 Serial Cable Emulation Profile), SDP (Service Discovery Protocol), etc., when exchanging data with other devices. Thus, the communication by the Bluetooth communication unit 49 according to various profiles such as A2DP, HFP, and AVRCP (Audio / Video Remote Control Profile) is comprehensively controlled. Note that these communication protocols and profiles have a stack structure in which layers are sequentially stacked from the upper application program to the lower physical layer.

  In order to protect children and women from various crimes, mobile phones equipped with various crime prevention functions have been proposed, such as the mobile phone 1 for children. The mobile phone 1 equipped with the crime prevention function includes a mobile phone 1 for a relatively young student. In the case of such a mobile phone 1, the mobile phone 1 uses a parent password. The change of the setting of the crime prevention function in is restricted. The person who manages the parent password is generally a parent who gives the child the mobile phone 1 equipped with a crime prevention function. Therefore, hereinafter, in describing the embodiment of the present invention, it is assumed that the child and the parent own the mobile phone 1 owned by the child. A user of a child who is a relatively young student is referred to as a “child user” for convenience, and the mobile phone 1 owned by the child user is referred to as “child user's mobile phone 1-1”. Further, the parent of the child is referred to as “parent user” for convenience, and the mobile phone 1 owned by the parent user is referred to as “parent user's mobile phone 1-2”.

  FIG. 3 shows the relationship between the child user's mobile phone 1-1 and the parent user's mobile phone 1-2 when the parent password is unlocked in a situation where the parent user who is the administrator of the parent password is in a remote location. The sequence in between. In the case of the sequence diagram of FIG. 3, for example, when a child user desires to add a friend's mail address, a situation in which a mail address is newly added using the telephone book function (address book function). Suppose. Further, it is assumed that the mobile phone 1-1 of the child user is locked by the parent password.

  In step S <b> 1, the child user operates the input unit to select (click, etc.) an icon (defined as “instruction information”) indicating a telephone directory function on the menu screen displayed on the main display 22, and An icon indicating a new registration function is selected from the telephone directory functions on the screen one level below the screen. In step S21, the child user's mobile phone 1-1 activates a new registration function in response to a predetermined operation when the parent password lock is released. Since the password lock is applied, the main display 22 displays a parent password lock release request confirmation screen including a message indicating that the parent password lock is currently applied without immediately starting the new registration function. FIG. 4A shows a display example of a parent password lock release request confirmation screen displayed on the main display 22 of the mobile phone 1-1 of the child user. In the case of FIG. 4 (A), a message “Locked by parent password. Do you want to request cancellation?” Is displayed and “Yes” regarding whether or not to request cancellation of parent password lock. And “No” icon are displayed. Then, the child user operates the input unit to determine whether or not to make a parent password lock release request on the parent password lock release request confirmation screen shown in FIG. Can be directed to.

  In step S2, when the child user requests the parent user to release the parent password lock, the child user operates the input unit, selects the “Yes” icon on the parent password unlock request confirmation screen, and requests the parent password unlock request. Perform the operation. In step 22, the control unit 41 of the child user's mobile phone 1-1 performs the parent password unlock request confirmation screen on the parent password unlock request confirmation screen when the child user performs an operation for requesting the parent password unlock request on the parent password unlock request confirmation screen. For example, an instruction input of an icon “Yes” is accepted. When an instruction input of the “No” icon is accepted on the parent password unlock request confirmation screen, the parent password unlock request process described below is not executed.

  In step S23, when the control unit 41 of the mobile phone 1-1 of the child user receives an instruction input of the “Yes” icon on the parent password unlock request confirmation screen, the parent password unlock request screen is displayed on the main display 22. Display. FIG. 4B shows a display example of a parent password unlock request screen displayed on the main display 22 of the mobile phone 1-1 of the child user. In the case of FIG. 4B, a message “Request to release parent password lock” is displayed, and the function for releasing the parent password lock is a new registration function of the phone book function. Is displayed.

  In step S24, the control unit 41 of the mobile phone 1-1 of the child user creates a mail (e-mail such as SMS (short message service)) based on the information related to the parent password unlock request (parent password unlock request information). To do. FIG. 5 shows an example of the data structure of the mail created by the control unit 41 of the child user's mobile phone 1-1. The mail text data includes parent password unlock request information and other information. The parent password lock release request information includes parent password lock release request instruction information for instructing a parent password lock release request, and parent password lock release request function information regarding a function to be a parent password lock release request.

  In step S <b> 25, the control unit 41 of the child user's mobile phone 1-1 sends the created mail to the antenna 31, the antenna duplexer 32, the transmission circuit 35, the CDMA signal processing unit 36, and the compression / decompression processing unit 37. To the parent user's mobile phone 1-2. At this time, the display screen displayed on the main display 22 transitions from the display screen shown in FIG. 4B to the display screen shown in FIG. FIG. 4C shows a display example of a parent password unlock request requesting screen displayed on the main display 22 of the mobile phone 1-1 of the child user. In the case of FIG. 4C, a message “Requesting cancellation of parent password lock” is displayed. Thereby, the child user can know that the parent user who is the administrator of the parent password is currently requesting to release the parent password lock.

  When the parent user's mobile phone 1-2 receives the mail transmitted from the child user's mobile phone 1-1, the control unit 41 of the parent user's mobile phone 1-2 is included in the received mail in step S31. Based on the parent password unlock request information and the parent password unlock request instruction information, the parent password unlock confirmation screen is displayed on the main display 22 to indicate that the parent password unlock request has been issued. To the administrator who manages the password). FIG. 6A shows a display example of a parent password lock release confirmation screen displayed on the main display 22 of the parent user's mobile phone 1-2. In the case of FIG. 6 (A), the message “A request to unlock the parent password has been received. Are you sure you want to unlock?” Is displayed and the function that unlocks the parent password is one of the phone book functions. The new registration function is displayed. On the parent password lock release confirmation screen, icons “Yes” and “No” regarding whether or not to release the parent password lock are displayed. Then, the parent user operates the input unit to instruct the parent user's mobile phone 1-2 whether or not to release the parent password lock on the parent password lock release confirmation screen shown in FIG. can do.

  In step S41, the parent user sees the parent password unlock confirmation screen displayed on the main display 22 of the parent user's mobile phone 1-2, so that the parent user unlock request is issued from the child user's mobile phone 1-1. You can know what happened. In step S42, when releasing the parent password lock, the parent user operates the input unit, selects the “Yes” icon on the parent password lock release confirmation screen, and selects the child user who requested the parent password lock release. An operation of unlocking the parent password lock is performed on the mobile phone 1-1. In step 32, when the parent user unlocks the parent password unlock operation on the parent password unlock confirmation screen, the control unit 41 of the parent user's mobile phone 1-2 displays, for example, “ The instruction input of the icon “Yes” is accepted. When an instruction input for the “No” icon is accepted on the parent password unlock confirmation screen, the parent password unlock process described below is not executed.

  In step S <b> 33, the control unit 41 of the parent user's mobile phone 1-2 inputs the parent password for inputting the parent password when the parent user performs an operation of releasing the parent password lock on the parent password unlock confirmation screen. A screen is displayed on the main display 22. FIG. 6B shows a display example of a parent password input screen displayed on the main display 22 of the parent user's mobile phone 1-2. In the case of FIG. 6B, a message “Please enter the parent password” is displayed, and a parent password input field is displayed. On the parent password input screen, an “OK” icon for instructing completion of the input of the parent password is displayed. The parent user can instruct the parent user's cellular phone 1-2 to complete the input of the parent password by selecting the “OK” icon on the parent password input screen.

  In step S43, the parent user operates the input unit, inputs the parent password in the parent password input field on the parent password input screen, and then selects the “OK” icon on the parent password input screen. For example, when the parent password set in advance is “98267”, the parent password “983267” is input on the parent password input screen.

  In step S34, when the parent user inputs the parent password on the parent password input screen by the parent user, the control unit 41 of the parent user's mobile phone 1-2 inputs the parent password of, for example, “987267” on the parent password input screen. Accept. In step S35, the control unit 41 of the parent user's mobile phone 1-2 creates an e-mail based on the parent password unlock request information and the parent password information. The parent password information includes, for example, information related to the parent password “983267”. FIG. 7 shows an example of the data structure of the mail created by the control unit 41 of the parent user's mobile phone 1-2. The text data of the mail includes parent password unlock request information, parent password information and other information. The parent password lock release request information includes parent password lock release request instruction information for instructing a parent password lock release request, and parent password lock release request function information regarding a function to be a parent password lock release request.

  In step S <b> 36, the control unit 41 of the parent user's mobile phone 1-2 sends the created mail via the antenna 31, the antenna duplexer 32, the transmission circuit 35, the CDMA signal processing unit 36, and the compression / decompression processing unit 37. To the child user's mobile phone 1-1. At this time, the display screen displayed on the main display 22 transitions from the display screen shown in FIG. 6B to the display screen shown in FIG. FIG. 6C shows a display example of a parent password transmission completion screen displayed on the main display 22 of the parent user's mobile phone 1-2. In the case of FIG. 6C, a message “Parent password sent” is displayed. Thereby, the parent user can know that the parent password has been transmitted to the child user who desires to release the lock by the parent password.

  The child user's mobile phone 1-1 receives the mail transmitted from the parent user's mobile phone 1-2 via the antenna 31, the antenna duplexer 32, the receiving circuit 33, and the like. In step S26, the control unit 41 of the mobile phone 1-1 of the child user extracts the parent password information from the received mail, and the parent password based on the extracted parent password information is stored in the storage unit 42 in advance. It is determined whether or not it matches the parent password (whether or not the parent password based on the parent password information extracted from the mail is correct). For example, when the parent password stored in advance in the storage unit 42 is “98267”, when the parent password based on the parent password information transmitted from the cellular phone 1-2 of the parent user is “98267”, the parent password It is determined that the passwords match. In the embodiment of the present invention, the parent password stored in advance in the storage unit 42 of the child user's mobile phone 1-1 is defined as "first authentication information", and the parent user's mobile phone 1-2 is defined. The parent password information included in the mail transmitted from is defined as “second authentication information”.

  In step S27, the control unit 41 of the mobile phone 1-1 of the child user displays a message indicating whether or not the parent password based on the extracted parent password information matches the parent password stored in advance in the storage unit 42. The information is displayed on the display 22 to notify the child user whether the parent password is correct or not. FIG. 4D is displayed on the main display 22 of the child user's mobile phone 1-1 when the parent password based on the extracted parent password information matches the parent password stored in the storage unit 42 in advance. A display example of the parent password matching display screen is shown. In the case of FIG. 4D, a message “Parent password matches. Unlock by parent password.” Is displayed. On the parent password match display screen, an “OK” icon for instructing execution of unlocking by the parent password is displayed. The child user knows that the parent password is matched, and operates the input unit to select the “OK” icon on the parent password match display screen, so that the child user's mobile phone 1-1 is It is possible to instruct execution of unlocking with the parent password.

  On the other hand, FIG. 4E shows the main display 22 of the child user's mobile phone 1-1 when the parent password based on the extracted parent password information does not match the parent password stored in the storage unit 42 in advance. The example of a parent password mismatch display screen displayed is shown. In the case of FIG. 4E, a message “Parent password does not match. Do you want to cancel again?” Is displayed. Also, “Yes” and “No” icons regarding whether or not to make a request to release the parent password lock again are displayed. Then, the child user can know that the parent passwords do not match, and by operating the input unit, can the parent user unlock request again on the parent password mismatch display screen shown in FIG. It can be instructed to the mobile phone 1-1 of the child user.

  In step S3, the child user knows whether the parent password matches or does not match by looking at the parent password match display screen or the parent password mismatch display screen displayed on the main display 22 of the child user's mobile phone 1-1. it can. In step S4, if the parent passwords match, the child user operates the input unit, selects the “OK” icon on the parent password match display screen, and performs an operation to execute the parent password lock release. On the other hand, if the parent passwords do not match, the child user operates the input unit, selects the “Yes” icon on the parent password mismatch display screen, and performs an operation of re-requesting the parent password lock. When the child user operates the input unit and selects the “No” icon on the parent password mismatch display screen, the child user cancels the re-request for releasing the parent password to the mobile phone 1-1. Can be instructed.

  In step S28, the control unit 41 of the child user's mobile phone 1-1 accepts an input on the parent password match display screen or the parent password mismatch display screen. In step S29, the control unit 41 of the mobile phone 1-1 of the child user accepts an input of “OK” on the parent password matching display screen, and executes unlocking with the parent password. At this time, the display screen displayed on the main display 22 of the mobile phone 1-1 of the child user transitions from FIG. 4 (D) to FIG. 4 (F). FIG. 4F shows a display example of a parent password lock release screen displayed on the main display 22 of the mobile phone 1-1 of the child user. As a result, the lock by the parent password can be released. For example, when the child user desires to add a friend's mail address, the child user can use the phone book function (address book function). You can add an email address to

  On the other hand, the control unit 41 of the mobile phone 1-1 of the child user accepts an input of “Yes” or “No” on the parent password mismatch display screen, and re-requests or cancels the parent password lock release. If a parent password lock release re-request is made, the process returns to step S24.

  In the embodiment of the present invention, the function provided in the mobile phone 1-1 of the child user is locked using the first authentication information (parent password), and the function provided in the mobile phone 1-1 of the child user is locked. In such a state, an e-mail including at least lock release request instruction information for instructing a request for unlocking the function provided in the mobile phone 1-1 of the child user is transmitted to another device, and at least the second authentication information is included. The mail is received from another device (for example, the parent user's mobile phone 1-2), the second authentication information included in the received mail is extracted, and the extracted second authentication information is hidden. When it is determined whether or not the second authentication information matches the first authentication information, and it is determined that the second authentication information matches the first authentication information, the mobile phone 1-1 of the child user is provided. Function lock It can be released. As a result, when the change of the security function setting is restricted on the mobile phone using the parent password, even if an administrator (such as a parent) managing the parent password does not exist near the child's mobile phone, The lock by the password can be preferably released, and the data other than the purpose intended by the administrator can be prevented from being changed by the child user. Further, since the parent password is not known to the child user, it is not necessary to reset the parent password.

  Other devices include personal computers and other portable terminals in addition to the parent user's cellular phone 1-2. Further, in the case of FIG. 3, for example, when a child user desires to add a friend's mail address, a situation is assumed in which a mail address is newly added using the telephone book function (address book function). However, this is not the case. That is, the present invention can also be applied when a child user desires to use other functions in addition to the telephone directory function when the change of the security function setting is restricted on the mobile phone using the parent password. . In addition to the exchange between the child user and the parent user, for example, when an employee who uses the mobile phone 1 supplied from a company uses the mobile phone 1, there is a usage time limit or a network limit in advance. The present invention can also be applied to the case where the restriction is lifted when attached.

  Next, FIG. 8 and FIG. 9 show the mobile phone 1-1 of the child user and the mobile phone of the parent user when the parent user who is the administrator of the parent password is unlocked in a situation where the parent user is in a remote place. This shows another sequence with the telephone 1-2. In the case of the sequence diagrams of FIGS. 8 and 9, for example, when a child user desires to add a friend's mail address, a new mail address is added using the phone book function (address book function). Assume a situation where Unlike the case of FIG. 3, when an icon indicating the phone book function is selected, for example, data from the outside is transmitted via the infrared communication unit 48 or the Bluetooth communication unit 49 in the mobile phone 1-1 of the child user. Assume when receiving. Further, it is assumed that the mobile phone 1-1 of the child user is locked by the parent password.

  Note that the description of the part corresponding to the process of FIG. The transition of the display screen displayed on the main display 22 of the child user's mobile phone 1-1 and the parent user's mobile phone 1-2 in the sequence of FIGS. 8 and 9 is shown in FIGS. Note that portions overlapping with the transition of the display screens of FIGS. 4 and 6 are omitted as appropriate.

  In step S101, the child user operates the input unit to select an icon indicating the phone book function on the menu screen displayed on the main display 22, and the phone book on the screen one level below the menu screen. Select an icon indicating a newly registered function from the functions. Alternatively, the child user performs a reception operation via infrared or Bluetooth from the menu screen in order to receive data transmitted from the cellular phone 1 owned by the friend via the infrared communication unit 48 or the Bluetooth communication unit 49. .

  In step S121, the control unit 41 of the child user's mobile phone 1-1 activates a new registration function in response to a predetermined operation when the parent password lock is released. Since the parent password lock is applied to No. 1, the new registration function for which usage restrictions are imposed is not immediately activated. Then, the control unit 41 of the child user's mobile phone 1-1 reads the parent password unlocking approval history database stored in the storage unit 42, refers to the read parent password unlocking approval history database, It is determined whether or not the function for which activation is instructed under the use restriction is a function that has been approved by the parent user for a specified number of times (for example, three times). FIG. 10 shows a configuration example of the parent password unlock release approval history database stored in the storage unit 42. In the case of FIG. 10, for example, “new registration function of phone book function”, “α function”, “β function”, “γ function”, etc. are described as functions instructed to be activated under use restrictions. “3 times”, “2 times”, “0 times”, and “1 time” are registered in association with each parent user as the number of times of approval. The number of approvals by the parent user associated with the “new registration function of the phone book function” is “3 times”. This is because the parent user has approved the new registration function of the phone book function so far. It is shown that “3 times” was performed.

  Then, when a start instruction is given under the usage restrictions for the new registration function of the phone book function and a new parent password unlock request is made, the parent user has approved the new registration function of the phone book function so far Has been performed “three times”, the control unit 41 of the mobile phone 1-1 of the child user is a function that has been approved by the parent user for a specified number of times when the activation is instructed under use restrictions. Is determined. On the other hand, when an activation instruction is issued under the use restriction for the α function of the mobile phone 1-1 of the child user and a new parent password unlock request is made, the parent user has already approved “2 times” for the α function. Therefore, the control unit 41 of the mobile phone 1-1 of the child user determines that the function instructed to be activated under the use restriction is not a function that has been approved by the parent user more than the specified number of times.

  When the control unit 41 of the mobile phone 1-1 of the child user determines in step S121 that the function instructed to be activated under the use restriction is not a function that has been approved by the parent user more than the specified number of times, the process proceeds to step S122. , The parent password lock release request confirmation screen shown in FIG. 11A is displayed on the main display 22, and the processes in and after step S122 are executed. FIG. 11H shows another display example of the parent password lock release request confirmation screen displayed on the main display 22 of the mobile phone 1-1 of the child user. In the case of FIG. 11H, on the parent password lock release request confirmation screen, it is possible to select not only temporary release of the function for which use restriction is imposed but also release of the permanent use restriction. In the case of canceling the permanent use restriction, this is included in the parent password lock release request instruction information, and the parent user is notified accordingly. Further, as shown in FIG. 11 (I), it may be possible to select not only the cancellation of the use restriction of individual functions but also the collective release of all restricted functions.

  Thereafter, in step S124, when the control unit 41 of the mobile phone 1-1 of the child user receives an instruction input of the “Yes” icon on the parent password unlock request confirmation screen, the parent password unlock request screen is displayed on the main display. 22 is displayed. FIG. 11B shows a display example of a parent password unlock request screen displayed on the main display 22 of the child user's mobile phone 1-1. In the case of FIG. 11B, a message “Request to release parent password lock” is displayed, and the function for releasing the parent password lock is a new registration function of the phone book function. Is displayed. In the lower part of the parent password unlock request screen, a comment input field is provided for the child user to enter a comment that the child user wants to convey to the parent user when the parent password unlock request is issued. In step S <b> 103, the child user inputs a comment to be transmitted to the parent user when the parent password unlock request is issued in the comment input field at the lower part of the parent password unlock request screen. For example, in the case of FIG. 11B, a comment “I want to input A-chan's new mail address” is input.

  In step S125, the control unit 41 of the mobile phone 1-1 of the child user accepts an input on the parent password unlock request screen. In step S126, the control unit 41 of the mobile phone 1-1 of the child user receives information on the received parent password unlock request screen and information related to the parent password unlock request (parent password unlock request information). Create email based on. FIG. 12 shows an example of the data structure of the mail created by the control unit 41 of the child user's mobile phone 1-1. The text data of the mail includes parent password unlock request information, text data related to an accepted comment, and other information. The parent password lock release request information includes parent password lock release request instruction information for instructing a parent password lock release request, and parent password lock release request function information regarding a function to be a parent password lock release request. Thereafter, the process proceeds to step S127, and the processes after step S127 are executed.

  On the other hand, if the control unit 41 of the child user's mobile phone 1-1 determines in step S121 that the function instructed to be activated under the use restriction is a function that has been approved by the parent user more than the specified number of times, the child user The control unit 41 of the mobile phone 1-1 determines that there is no need for further approval from the parent user because there has already been approval from the parent user for the function that is instructed to be activated under the use restriction. The approval sequence is not performed between the child user's mobile phone 1-1 and the parent user's mobile phone 1-2, and the processing of steps S122 to S130 is skipped. In step S131, the function whose use is restricted is unlocked. Note that the parent password unlocking approval history database may be updated in step S132, or may not be updated because it has already exceeded the predetermined number of times. Even in this case, as will be described later, a mail including the operation history information of the child user after the parent password lock is released is transmitted to the parent user's mobile phone 1-2.

  Next, in step S132, the control unit 41 of the mobile phone 1-1 of the child user updates the parent password lock release approval history database stored in the storage unit. For example, when an activation instruction is given under the use restriction regarding the α function of the mobile phone 1-1 of the child user and a new parent password lock release request is made, if there is a new approval from the parent user, the parent user related to the α function Is updated from “2 times” to “3 times”. In step S133, the control unit 41 of the child user's mobile phone 1-1 determines whether or not the child user's mobile phone 1-1 is out of service area via the antenna 31, the antenna duplexer 32, the receiving circuit 33, and the like. Monitoring is performed to determine whether or not the time during which the child user's mobile phone 1-1 is out of the service area has reached a predetermined time (for example, 5 minutes) or more. When the control unit 41 of the mobile phone 1-1 of the child user determines in step S133 that the time during which the mobile phone 1-1 of the child user is out of service has reached a predetermined time (for example, 5 minutes) or more, the child user In step S134, the control unit 41 of the mobile phone 1-1 uses the parent password information stored in the storage unit 42 to lock the function whose use restriction has been once released. Thereby, in situations where it is physically impossible for the parent user to monitor the child user, such as out of service area, for example, various settings that are set in advance for the crime prevention function by the child user silently to the parent user. Can be prevented from being altered.

  In step S136, the control unit 41 of the mobile phone 1-1 of the child user creates an email including the operation history information of the child user after releasing the parent password lock according to the operation content of the child user with a predetermined function. . In step S <b> 137, the control unit 41 of the child user's mobile phone 1-1 transmits the created mail via the antenna 31, the antenna duplexer 32, the transmission circuit 35, the CDMA signal processing unit 36, and the compression / decompression processing unit 37. To the parent user's mobile phone 1-2.

  The parent user's mobile phone 1-2 receives the mail transmitted from the child user's mobile phone 1-1. In step S157, the control unit 41 of the parent user's cellular phone 1-2 confirms the operation history after unlocking the parent password based on the operation history information of the child user after the parent password lock included in the received mail. A screen is displayed on the main display 22, and the parent user (an administrator who manages the parent password) is notified of the operation history (operation contents) by the child user after the parent password lock is released. FIG. 13D shows a display example of an operation history confirmation screen after unlocking the parent password displayed on the main display 22 of the parent user's mobile phone 1-2. In the case of FIG. 13D, a message “Operation history of child user: Do you want to request addition cancellation of the mail address of friend A?” Is displayed. Thereby, the parent user can know what operation has been performed after unlocking the child user with the parent password. In addition, “Yes” and “No” icons regarding whether or not to cancel the operation history of the child user after releasing the parent password lock are displayed. Then, the parent user operates the input unit to determine whether or not to cancel the operation history of the child user after releasing the parent password lock on the operation history confirmation screen after releasing the parent password lock shown in FIG. An instruction can be given to the cellular phone 1-2 of the parent user.

  In step S174, the parent user unlocks the child user with the parent password by looking at the operation history confirmation screen after unlocking the parent password displayed on the main display 22 of the parent user's mobile phone 1-2. It is possible to know what operation was performed after the operation. In step S175, if the parent user is an operation outside the permitted range of the operation history of the child user on the operation history confirmation screen after unlocking the parent password, the operation history confirmation after unlocking the parent password is performed by operating the input unit. The “Yes” icon is selected on the screen, and the operation content (operation history) of the child user after canceling the parent password lock is cancelled.

  In step S158, the control unit 41 of the parent user's mobile phone 1-2 accepts an input on the operation history confirmation screen after unlocking the parent password. In step S159, when the control unit 41 of the parent user's mobile phone 1-2 accepts the input of “Yes” on the operation history confirmation screen after releasing the parent password lock, the operation content cancellation request information (roll) after releasing the parent password lock. Back request information) is generated, and an email including the operation content cancellation request information after releasing the parent password lock is created. The operation content cancellation request information after canceling the parent password lock includes information for requesting cancellation of the operation content (operation history) of the child user after canceling the parent password lock. In step S <b> 160, the control unit 41 of the parent user's mobile phone 1-2 transmits the created mail via the antenna 31, the antenna duplexer 32, the transmission circuit 35, the CDMA signal processing unit 36, and the compression / decompression processing unit 37. To the child user's mobile phone 1-2.

  The child user's mobile phone 1-1 receives the mail transmitted from the parent user's mobile phone 1-2. In step S138, the control unit 41 of the mobile phone 1-1 of the child user performs the operation after canceling the parent password lock that has already been executed based on the operation content cancellation request information after canceling the parent password lock included in the received mail. Cancel the operation and return to the previous state (roll back). As a result, when the operation history of the child user is outside the permitted range, the operation content already executed can be returned to the state before the parent password lock is released. In step S <b> 139, the control unit 41 of the child user's mobile phone 1-1 causes the main display 22 to display an operation content cancel display screen after canceling the parent password lock. FIG. 11G shows a display example of the operation content cancellation display screen after unlocking the parent password displayed on the main display 22 of the mobile phone 1-1 of the child user. In the case of FIG. 11G, a message “The operation content has been canceled due to a cancel request from the administrator of the parent password” is displayed. As a result, the child user can know that the operation content has returned to the state before the parent password lock was released by the cancel request from the parent user. In step S106, the child user views the operation content cancel display screen after canceling the parent password lock displayed on the main display 22 of the child user's mobile phone 1-1, so that the operation content becomes the parent in response to a cancel request from the parent user. You can know that you have returned to the state before unlocking the password.

  When there is no response to the parent password unlock request from the parent user for a certain period of time, the parent password unlock request may be transferred to the secondary administrator of the parent password. For example, when the above parent user is a father, a mother is assumed as a secondary administrator. For example, as shown in FIG. 14, in step S228, the control unit 41 of the child user's mobile phone 1-1 waits for a predetermined time (for example, 10 minutes) after the mail transmission processing in step S227. If there is no response from the parent user's mobile phone 1-2 in the meantime, the created mail is transferred to the secondary administrator's mobile phone 1-3. When the secondary administrator's mobile phone 1-3 receives the mail transmitted from the child user's mobile phone 1-1, the approval process is executed in the same manner as in the case of the parent user's mobile phone 1-2 in step S 281. . Thus, even if the parent user who is the primary administrator cannot respond to the cancellation request, the cancellation request can be transferred to the secondary administrator, and the parent password lock Release can be performed smoothly.

  Further, the parent password lock release request once made may be canceled when the necessity disappears afterwards. For example, as shown in FIG. 15, when the child user performs a cancel operation on the parent password unlock request requesting screen in FIG. 11C, in step S328, the child user's mobile phone 1-1 moves the parent user's mobile phone 1-1. An email including cancellation information is transmitted to the mobile phone 1-2. When the parent user's mobile phone 1-2 receives the mail transmitted from the child user's mobile phone 1-1 during the approval process, the parent user's mobile phone 1-2 executes cancellation processing of the parent password lock release request.

  The present invention can be applied to a PDA (Personal Digital Assistant), a personal computer, a portable game machine, a portable music player, a portable video player, and other portable terminals in addition to the cellular phone 1. it can.

  The series of processes described in the embodiments of the present invention can be executed by software, but can also be executed by hardware.

  Furthermore, in the embodiment of the present invention, the steps of the flowchart show an example of processing performed in time series in the order described, but parallel or individual execution is not necessarily performed in time series. The processing to be performed is also included.

(A) And (B) is a figure which shows the structure of the external appearance of the mobile telephone applicable to the portable terminal which concerns on this invention. The block diagram which shows the internal structure of the mobile telephone applicable to the portable terminal which concerns on this invention. The sequence diagram between a child user's mobile telephone and a parent user's mobile telephone in the case where the parent user who is a parent password manager cancels | releases the lock by a parent password in the situation where it is in a remote place. (A) thru | or (F) are the transition diagrams of the display screen displayed on the main display of a child user's mobile telephone. The figure which shows the example of a data structure of the mail produced by the control part of a child user's mobile telephone. (A) thru | or (C) are the transition diagrams of the display screen displayed on the main display of a parent user's mobile telephone. The figure which shows the data structure example of the mail produced by the control part of a parent user's mobile telephone. FIG. 11 is another sequence diagram between the child user's mobile phone and the parent user's mobile phone when the parent user who is the administrator of the parent password is unlocked in a situation where the parent user is in a remote place. FIG. 11 is another sequence diagram between the child user's mobile phone and the parent user's mobile phone when the parent user who is the administrator of the parent password is unlocked in a situation where the parent user is in a remote place. The figure which shows the structural example of the parent password lock release approval history database memorize | stored in the memory | storage part of a child user's mobile telephone. (A) thru | or (I) are the transition diagrams of the display screen displayed on the main display of a child user's mobile telephone. The figure which shows the example of a data structure of the mail produced by the control part of a child user's mobile telephone. (A) thru | or (D) are the transition diagrams of the display screen displayed on the main display of a parent user's mobile telephone. FIG. 11 is another sequence diagram between the child user's mobile phone and the parent user's mobile phone when the parent user who is the administrator of the parent password is unlocked in a situation where the parent user is in a remote place. FIG. 11 is another sequence diagram between the child user's mobile phone and the parent user's mobile phone when the parent user who is the administrator of the parent password is unlocked in a situation where the parent user is in a remote place.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile telephone, 11 ... Hinge part, 12 ... 1st housing | casing, 13 ... 2nd housing | casing, 14 ... Speaker, 15 ... Side key, 16 ... Security buzzer switch, 16a ... End part of security buzzer switch 16 , 17 ... Pull-top tab, 18 ... GPS antenna, 19 ... Receiver, 20 ... Microphone, 21 ... Operation key, 22 ... Main display, 23 ... Sub-display, 24 ... CCD camera, 25 ... Sensor group, 31 ... Antenna, 32 ... Antenna duplexer (DUP), 33 ... Receiver circuit (RX), 34 ... Frequency synthesizer (SYN), 35 ... Transmitter circuit (TX), 36 ... CDMA signal processor, 37 ... Compression / decompression processor, 38 ... PCM Codec 39 ... Receiving amplifier 40 ... Transmitting amplifier 41 ... Control unit 42 ... Storage unit 43 ... Battery 44 ... Power supply circuit 45 ... External memory Li interface, 46 ... memory card, 47 ... clock circuit, 48 ... infrared communication unit, 49 ... Bluetooth communication unit.

Claims (10)

Lock means for locking a function provided in the mobile terminal using the first authentication information;
In a state where the function provided in the portable terminal is locked by the locking means, a mail including at least unlock request instruction information for instructing a request for unlocking the function provided in the portable terminal is transmitted to the first device. Email sending means,
Mail receiving means for receiving mail including at least second authentication information from the first device;
The second authentication information included in the mail received by the mail receiving means is extracted, and the second authentication information is not displayed and the second authentication information is the first authentication. Authentication information determination means for determining whether or not the information matches,
And a lock release unit that unlocks a function provided in the mobile terminal when the authentication information determination unit determines that the second authentication information matches the first authentication information. Mobile device.   When the authentication information determination unit determines that the second authentication information does not match the first authentication information, the lock release unit does not release the lock of the function provided in the mobile terminal. The mobile terminal according to claim 1. At least one housing;
A security switch provided in the housing;
The mobile terminal according to claim 1, further comprising output means for outputting a notification sound in response to an operation of the security switch.   The mail transmitting means is locked when the activation of the function locked according to a predetermined operation is instructed in a state where the function provided in the portable terminal is locked, or in accordance with the data receiving operation from the outside The mobile terminal according to claim 1, wherein when the function is activated, a mail including at least the unlock request instruction information is transmitted to the first device. Storage means for storing the number of times the lock is released by the lock release means in response to an email from the first device in association with each function provided in the mobile terminal;
Cancellation number determination means for determining whether the number of cancellations stored by the storage means is equal to or greater than a predetermined number of times set in advance;
When the number of times of release is determined by the release number determination means to be equal to or greater than a predetermined number set in advance, the mail transmission / reception means transmits a mail including at least the lock release request instruction information to the first device. The mobile terminal according to claim 1, wherein the lock release unit unlocks a function provided in the mobile terminal.   When it is determined that the number of cancellations is less than a predetermined number set in advance, the mail transmission / reception unit transmits an email including at least the lock release request instruction information to the first device. 6. The portable terminal according to claim 5, wherein the storage unit updates the number of times of release when the lock of the function provided in the portable terminal is released by the lock release unit.   The e-mail receiving unit transmits the e-mail including at least the lock release request instruction information to the first device until the elapse of a predetermined time from the first device to the first device. 2. The portable terminal according to claim 1, wherein when a mail including at least authentication information of 2 is not received, the mail transmitting unit transmits a mail including at least the unlock request instruction information to a second device. .   The mail transmission unit transmits a mail including information on an operation history executed after the lock provided by the unlocking unit is unlocked to the first device. Item 2. The mobile terminal according to Item 1. The mail receiving means receives, from the first device, an email including cancellation request information related to an operation history cancellation request executed after the lock provided by the unlocking means is unlocked. ,
The locking means locks a function provided in the mobile terminal unlocked by the unlocking means using the first authentication information in accordance with the cancellation request information included in the received mail. The portable terminal according to claim 8, wherein   The lock means is locked by the lock release means when the state of the mobile terminal is out of range for a predetermined time or more after the lock provided by the lock release means is released. The mobile terminal according to claim 1, wherein a function provided in the mobile terminal that has been released is locked.

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