JP5031056B2 - Mobile communication terminal and screen display control method - Google Patents

Description

  The present invention relates to a mobile communication terminal that can use roaming and a screen display control method using the mobile communication terminal.

  Currently, mobile communication terminals such as mobile phones that can use roaming are provided with functions triggered by connection to a destination network when using roaming such as when traveling abroad. For example, in Patent Document 1, in a mobile phone device that performs international roaming, a country ID code is obtained for a roaming destination, a dictionary corresponding to the roaming destination is made available, and a time to be displayed is changed. It is described that to do.

JP 2001-36966 A

  When using a roaming service such as when traveling abroad, there are situations where functions that are rarely used are required when using a mobile communication terminal on a home network. For example, it is assumed that short-term overseas travelers use functions such as settings (international dial assist settings, international roaming settings, roaming guidance settings) and overseas usage guides when using mobile phones at their destinations. . At that time, the user has to find such an unfamiliar function that is rarely used in the country from the menu, and depending on the function, the user has to find it from a deep hierarchy of the menu.

  For example, as shown in FIG. 6, when the function menu is configured from the standby screen in the hierarchical structure of the first hierarchy main menu, the second hierarchy, the third hierarchy, and the fourth hierarchy, in the example of FIG. In order to reach a desired overseas network service setting function such as “3G / GSM switching” or “network search setting”, it is necessary to go down to the fourth layer.

  As described above, when using the roaming service, the function needs may be different from those in the home network. For this reason, if a common function selection menu is used regardless of the presence or absence of roaming, it is not always convenient for the user when using roaming, and the convenience for the user may be reduced.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a mobile communication terminal capable of improving the convenience of the user when operating each function when using roaming. To do.

  In order to solve the above-described problem, a mobile communication terminal according to the present invention provides a mobile communication terminal capable of using roaming, detecting means for detecting the use of roaming, and detecting the use of roaming by the detection means to a user. And display control means for changing a screen for selecting a desired function to a screen corresponding to roaming.

  Similarly, in order to solve the above-described problem, a screen display control method according to the present invention is a screen display control method by a mobile communication terminal that can use roaming, and includes a detection step for detecting the use of roaming, and a detection step. A display control step of changing a screen for allowing a user to select a desired function to a screen corresponding to roaming when the use of roaming is detected.

  According to such a mobile communication terminal and a screen display control method, when using roaming, the screen for allowing the user to select a desired function is changed to a screen corresponding to roaming. It is possible to cope with changes in the needs of functions specific to roaming, which are different from the case where the user is operating, and to improve user convenience when operating each function when using roaming. As a result, the use of mobile communication terminals at roaming destinations such as overseas is also promoted.

In addition, when the use of roaming is detected by the detecting means, the counter includes a counting means for counting an elapsed time from the start of roaming, and the display control means is further changed to a screen corresponding to the elapsed time counted by the counting means. you. Alternatively, when the use of roaming is detected in the detection step, the display step includes a counting step for counting the elapsed time from the start of roaming, and the display control step is further changed to a screen corresponding to the elapsed time counted in the counting step. To do. With this configuration, it is possible to cope with changes in the function needs according to the elapsed time of roaming, and it is possible to further improve the convenience of the user when operating each function when using roaming.

  In addition, when the use of roaming is detected by the detection means, an identification means for identifying the type of the network in the area is provided, and the display control means further displays a screen corresponding to the type of network identified by the identification means. It is preferable to change. With this configuration, it is possible to respond to changes in the function needs according to the type of the visited network during roaming, and to further improve user convenience when operating each function when using roaming. Can do.

  In addition, a creation unit that creates a list screen that summarizes frequently used functions during roaming among functions that can be used in the mobile communication terminal is provided, and the display control unit is an icon that links to the list screen created by the creation unit Is preferably displayed on the screen. With this configuration, it is possible to easily find the functions required when roaming by referring to the list screen using icons, and further improve the convenience of the user when operating each function when using roaming. be able to.

  In addition, the display control unit includes a selection unit that selects a function that cannot be used during roaming or a function that does not need to be used, and the display control unit has a function selected by the selection unit on the screen for causing the user to select a desired function. When selected via a user operation, it is preferable to present to the user that the function cannot be used.

  With this configuration, when a function that cannot be used during roaming or a function that does not need to be used is selected, that fact is presented to the user, so the availability of each function is clearly presented to the user of the mobile communication terminal As a result, it is possible to further improve the convenience of the user when operating each function when using roaming.

The display control means preferably hides the functions that can be selected by the selection means on the screen for allowing the user to select a desired function.

With this configuration, unnecessary functions are not displayed during roaming, and a desired function can be found more easily. As a result, it is possible to further improve user convenience when operating each function when using roaming.
In addition, the mobile communication terminal includes a selection unit that selects a function that cannot be used during roaming or a function that does not need to be used, and the display control unit is configured such that the elapsed time counted by the counting unit does not exceed a preset threshold. Indicates that when a function selected by the selection means is selected on the screen through a user operation, the function is not available and the elapsed time counted by the counting means is set in advance. In the case of exceeding, it is preferable to hide the functions that can be selected by the selection means on the screen.

  According to the mobile communication terminal and the screen display control method of the present invention, it is possible to improve user convenience when operating each function when using roaming.

It is a functional block diagram of the mobile communication terminal 1 which concerns on one Embodiment of this invention. 2 is a hardware configuration diagram of the mobile communication terminal 1. FIG. It is a sequence diagram which shows the process performed in the mobile communication terminal 1 of this embodiment. It is a figure which shows an example of a screen structure of a short-term stay menu. It is a figure which shows an example of a screen structure of a long-term stay menu. It is a figure which shows an example of the screen structure of the conventional service menu.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a functional block diagram of a mobile communication terminal 1 according to an embodiment of the present invention. The mobile communication terminal 1 includes a device having a communication function such as a mobile phone, a PDA (Personal Digital Assistant), a personal computer, and is configured by a mobile communication network or an Internet network such as WWW. Via a communication network N, connection is made in a state where data communication is possible with other mobile communication terminals and servers (not shown). In addition, the mobile communication terminal 1 uses an application stored in the terminal or accesses an external server, so that a communication carrier or other service provider with which the user of the mobile communication terminal 1 is contracted. Various functions related to services provided by can be used.

  The mobile communication terminal 1 basically uses a service via a network (home network) provided by a communication carrier with which the user of the mobile communication terminal 1 has a contract. Then, when the mobile communication terminal 1 is located in a network (roaming network) different from the home network, the service of the telecommunications carrier to which the user of the mobile communication terminal 1 is subscribed using the roaming service. Can be received through the facilities of partner companies of the roaming network.

  Here, the configuration of a normal service menu screen when the mobile communication terminal 1 is in the home network will be described with reference to FIG. As shown in FIG. 6, the normal service menu screen has a hierarchical structure of standby screen → main menu (first layer) → second layer → third layer → fourth layer → (hereinafter omitted). Various services are classified into a plurality of categories according to their contents. The user of the mobile communication terminal 1 opens the main menu from the standby screen, selects an appropriate category in each hierarchy, descends to the next hierarchy, and reaches a desired function. For example, in FIG. 6, in order for the user to execute “priority network setting” which is a desired function, first, “setting / NW service” is selected in the main menu (first layer), and then “ “NW Service” is selected, and “Overseas Network Service” is selected in the third layer, and the fourth layer must be reached.

  In this embodiment, the mobile communication terminal 1 is characterized in that, when using a roaming service, the service menu screen for allowing the user to select a desired service (function) is changed to a screen corresponding to roaming. Furthermore, the screen can be changed according to the elapsed time from the start of roaming and the type of network in the area.

  In the present embodiment, the communicable area of the home network covers the entire home country (for example, Japan) to which the home network operator belongs. That is, in the present embodiment, the situation where the mobile communication terminal 1 uses the roaming service is a situation where the mobile communication terminal 1 is in a foreign country (overseas) other than its own country (hereinafter referred to as “overseas travel”).

  As shown in FIG. 1, the mobile communication terminal 1 includes a roaming detection unit (detection unit) 11, a roaming identification unit (identification unit) 12, an overseas menu creation unit (creation unit) 13, and an unusable function selection unit (selection unit). 14, a roaming elapsed time counting unit (counting unit) 15, a display control unit (display control unit) 16, an operation input unit 17, and a display unit 18.

  The roaming detection unit 11 detects the use of the roaming service. More specifically, roaming is detected using a conventional technique for detecting that the mobile communication terminal 1 is connected to a network other than the home network contracted by the user. When detecting the use of roaming, the roaming detection unit 11 transmits information to that effect to the roaming identification unit 12 and the overseas menu creation unit 13.

  When the roaming detection unit 11 detects the use of roaming, the roaming identification unit 12 identifies the type of network that is in the area. More specifically, when the roaming identification unit 12 receives information from the roaming detection unit 11 that the roaming is being used, the roaming identification unit 12 uses the conventional technology for identifying the network type, and the type of the network that is located is 3G. , GPRS, or GSM. The roaming identification unit 12 transmits the identified network type information to the unusable function selection unit 14.

  The overseas menu creation unit 13 is a list screen that summarizes frequently used functions (overseas convenient functions) when roaming (in this embodiment, when traveling abroad) among the functions available on the mobile communication terminal 1 (overseas convenient Function menu screen). More specifically, when information indicating that the roaming is being used is received from the roaming detection unit 11, all of the functions held in the terminal are frequently used during the use of the roaming service such as when traveling abroad. Functions designated in advance are extracted, and an overseas convenient function menu screen (for example, the screen 22 in FIGS. 4 and 5) in which a list of shortcuts to these extracted functions is arranged is created. The created menu screen is transmitted to the display control unit 16.

  The unusable function selection unit 14 selects a function that cannot be used during roaming or a function that does not need to be used. “Functions that cannot be used during roaming” include functions unique to the home network, functions related to services only in the area of the home network, videophone functions, GPS location confirmation functions, and the like. In this embodiment, the roaming identification unit Depending on the type of visited network identified by 12, functions that are not available on this type of network are selected. Note that the correspondence between the network type and the unavailable function is stored in advance in the terminal.

  Further, the unusable function selection unit 14 may also select functions that do not need to be used when roaming such as when staying abroad. “Functions that do not need to be used when roaming” are functions that are not effective during roaming or functions that are not used when the user is away from the home network for a long time. It can be decided arbitrarily. The unusable function selection unit 14 stores such “functions that do not need to be used overseas” in the terminal as given information.

  The unusable function selection unit 14 transmits information regarding the selected function to the display control unit 16.

  The roaming elapsed time counting unit 15 counts the elapsed time from the start of roaming. More specifically, the roaming elapsed time counting unit 15 starts counting the elapsed roaming time when the mobile communication terminal 1 is turned on for the first time after the roaming detection unit 11 detects the use of roaming. . The roaming elapsed time counting unit 15 transmits information on the counted current elapsed time to the display control unit 16.

The display control unit 16 controls the screen display of the display unit 18 of the mobile communication terminal 1. Particularly in this embodiment, when the roaming detection unit 11 detects the use of roaming, the service menu screen for allowing the user to select a desired function is changed to a screen corresponding to roaming. More specifically, the screen configuration is changed as follows.
(1) The icon linked to the overseas convenient function menu screen created by the overseas menu creation unit 13 is displayed on the standby screen or the main menu screen. (2) The roaming elapsed time for the function selected by the unusable function selection unit 14 The icon display is changed according to the elapsed roaming time measured by the counting unit 15. More specifically,
(2-1) When the elapsed time of roaming is within 7 days (during short stay), when the icon of the corresponding function is selected through user operation, the user is informed that the function cannot be used (for example, Pop-up display).
(2-2) If the elapsed time of roaming exceeds 7 days (during a long-term stay), the corresponding function icon is hidden from the menu screen.

  In the present embodiment, the combination of (1) and (2-1) is referred to as a “short-term stay menu”, and the combination of (1) and (2-2) is referred to as a “long-term stay menu”. Called. Details of these menus will be described later with reference to FIGS. The display control unit 16 controls the display unit 18 so that the screen changed as described above is displayed on the display unit 18.

  The operation input unit 17 detects and accepts input operations such as button presses and touch panel inputs by the user of the mobile communication terminal 1. In this embodiment, the operation input part 17 will transmit the information regarding this input operation to the display control part 16, if a user's input operation is detected.

  The display unit 18 displays a standby screen or a menu screen whose configuration has been changed by the display control unit 16 and presents it to the user.

  FIG. 2 is a hardware configuration diagram of the mobile communication terminal 1. The mobile communication terminal 1 physically includes an operation unit such as a CPU (Central Processing Unit) 101, a RAM (Random Access Memory) 102 and a ROM (Read Only Memory) 103 which are main storage devices, and an input key which is an input device. 104, a display device 105, a wireless communication unit 106, and the like. Each function of the mobile communication terminal 1 shown in FIG. 1 is obtained by reading predetermined computer software on hardware such as the CPU 101 and the RAM 102, and thereby operating the operation unit 104, the display 105, and the wireless communication unit under the control of the CPU 101. This is realized by operating 106 and reading and writing data in the RAM 102 and ROM 103. Of the functional blocks described above, the operation input unit 17 is specifically realized by the operation unit 104, and the display unit 18 is realized by the display 105.

  Next, with reference to FIGS. 3 to 5, processing executed in the mobile communication terminal 1 of the present embodiment will be described, and a screen display control method according to the present embodiment will be described. FIG. 3 is a sequence diagram showing processing executed in the mobile communication terminal 1 of the present embodiment.

  First, when the mobile communication terminal 1 is powered on by a user operation or the like other than the home network contracted by the user of the mobile communication terminal 1 and turned on (S1), roaming is executed, and the roaming detection unit 11 A connection to a network other than the network is detected (S2: detection step). More specifically, the roaming detection unit 11 detects roaming using a conventional technique for detecting that the user is in a network other than the home network.

  Next, the roaming identification unit 12 determines which network is a 3G network or a GPRS / GSM network (S3). More specifically, when the roaming identification unit 12 receives the information that the roaming is being used from the roaming detection unit 11, the roaming identification unit 12 uses the conventional technology for identifying the network type, and the type of the visited network is 3G, GPRS, Determine which of the GSM.

  Next, it is determined whether the place where the power was previously turned off and the power was turned off is the home network (S4). More specifically, when the mobile communication terminal 1 is turned off, information indicating whether or not roaming is used is held in a storage means (not shown in FIG. 1) or the like, and this information is referred to. Then, the roaming elapsed time counting unit 15 makes the above determination.

  When it is determined in step S4 that the place where the power was previously turned off is the home network, the roaming elapsed time counting unit 15 starts measuring the elapsed time from the current time (for example, the determination time in step S4) (S5). ). Note that this elapsed time is continuously measured while the user is in the roaming network from the start of roaming. For example, when the mobile communication terminal 1 is turned off after the measurement of the elapsed time is started, information on the elapsed time counted up to this point is held in the mobile communication terminal 1.

  On the other hand, if it is determined in step S4 that the previous power-off location is other than the home network, it is measured by the roaming elapsed time counter 15 until the previous power-off held in the mobile communication terminal 1. Measurement of elapsed time is started continuously from the elapsed time (S6). Note that the elapsed time may be continuously measured while the power is turned off once the measurement is started.

  Next, the display control unit 16 displays a pop-up screen on the standby screen of the display unit 18 for confirming whether the user changes to the overseas menu (service menu for roaming use) (S7). When a user operation that allows a change to the overseas menu is detected by the operation input unit 17, the process proceeds to step S8. If a user operation that does not allow a change to the overseas menu is detected, the process ends without performing a process such as a menu change.

  In step S7, once the user selects to change to the overseas menu, when this flow is executed again while staying overseas (while roaming is ongoing), it is automatically performed without confirming again with the user. Alternatively, the process may proceed to step S8.

  When it is selected to change to the overseas menu in step S7, it is determined whether the roaming elapsed time is 7 days (168 hours) or less at the present time (for example, the determination time of step S7) (S8). . If it is determined that the period is 7 days or less, it is determined that the person is still staying abroad for a short period (while roaming is continuing), and the process proceeds to step S9. If it is longer than 7 days, it is determined that the user has stayed overseas for a long time (roaming is ongoing), and the process proceeds to step S11. The processing in step S8 is executed by the display control unit 16 based on the elapsed time information acquired from the roaming elapsed time counting unit 15. Note that the time for distinguishing the stay period (roaming elapsed time) into a short period and a long period is 7 days as an example in the present embodiment, but may be changed as appropriate.

  If it is determined in step S8 that the elapsed roaming time is 7 days or less, the display control unit 16 changes the “short-term stay menu” (S9: display control step).

  Here, the details of the “short stay menu” will be described with reference to FIG. As shown in FIG. 4, in the short-term stay menu, an “overseas convenient function” icon 21 b is displayed on the standby screen 21. This icon 21 b is linked to the overseas convenient function menu screen 22 created by the overseas menu creation unit 13. The standby screen 21 may display a roaming destination carrier name (operator name) 21a as shown in FIG. The operator name is acquired, for example, when the roaming detection unit 11 detects roaming or when the roaming identification unit 12 identifies the type of roaming network.

The overseas convenient function menu screen 22 is a list of shortcuts to functions frequently used when traveling abroad (when roaming). Examples of functions described in the overseas convenient function menu screen 22 include:
・ Functions to support user's work during overseas stay (roaming) such as translation software,
・ Overseas network service (3G / GSM switching, network search setting, priority network setting, operator name display setting), overseas setting (email setting, mail selection reception setting, roaming incoming call restriction, roaming incoming call notification setting, international dial assist setting, Arriving overseas, such as roaming guidance setting, location status), overseas service (answering machine (overseas), forwarding phone (overseas), remote control setting (overseas), caller ID request (overseas), roaming guidance (overseas)) Function to use various services when you start roaming,
-A function for providing information about destinations (roaming network areas) to users, such as overseas usage guides. The overseas convenient function menu screen 22 may include an “overseas menu change” function that can be changed to a normal menu or a long-stay menu by a user operation.

  Further, in the short stay menu, when a function that cannot be used during roaming (or does not need to be used during roaming) is selected on the main menu screen 23 one level below the standby screen 21, a notification to that effect is given to the user. Has been. For example, as shown in FIG. 4, when the icon 23a of a function that cannot be used during roaming is selected (a cursor is placed), a screen 23b including a sentence such as “This function cannot be used overseas” pops up, The user of the mobile communication terminal 1 is notified that the function cannot be used. If the overseas stay time (roaming network stay time) is short, changing the main menu display in a short period of time will adversely affect the usability and operability. Without changing, the user is notified that the function cannot be used when a function that cannot be used is selected. In the present embodiment, such a “function that cannot be used during roaming (or does not need to be used during roaming)” refers to the type of network being connected, which is identified by the roaming identification unit 12 by the unusable function selection unit 14, The terminal 1 is selected according to given information by a communication carrier with whom the terminal 1 is contracted, and notified to the display control unit 16.

  After changing to the short stay menu in step S9, the display control unit 16 determines whether or not the elapsed time has exceeded 7 days (168 hours) (S10). Until the elapsed time exceeds 7 days, the process waits at this step, and after exceeding 7 days, the process proceeds to step S11.

  Next, the display control unit 16 displays a pop-up screen on the standby screen of the display unit 18 for confirming whether or not to change to the long-stay menu for the user (S11). When a user operation that allows a change to the long-stay menu is detected by the operation input unit 17, the process proceeds to step S12. When a user operation that does not allow a change to the long-stay menu is detected, the process ends without performing a process such as a menu change. That is, if the menu is changed to the short stay menu in step S9, the process is terminated while the short stay menu is displayed, and if the normal menu is displayed, the process is terminated without changing the menu.

  In step S11, once the user has selected to change to the long-term stay menu, when this flow is executed again while staying abroad, the process automatically proceeds to step S12 without confirmation from the user. You may comprise so that it may transfer.

  When it is selected to change to the long-term stay menu in step S11, the display control unit 16 changes to the “long-term stay menu” (S12: display control step). Here, the details of the “long stay menu” will be described with reference to FIG. As shown in FIG. 5, in the long-stay menu, in the main menu 33, functions that cannot be used during roaming or functions that are not necessary during roaming are not displayed. In the example of FIG. 5, the icons 33 a and 33 b are not displayed in the main menu 33.

  In the long-stay menu, as shown as the main menu 34 in FIG. 5, the icon 21b of the overseas convenient function shown in FIG. 4 is displayed in an empty area where the icons 33a and 33b are hidden in the main menu 33. Let Alternatively, a list screen in which the hidden icons 33a and 33b are collected may be created, and the “home network function” icon 34a linked to the list screen may be displayed. Further, the user may select a favorite function and set an icon on the main menu so that the main menu can be used effectively according to the user's preference of the mobile communication terminal 1.

  According to such a mobile communication terminal 1, a service menu screen (standby screen) for allowing the display control unit 16 to select a desired function by the user in response to the roaming detection unit 11 detecting the use of roaming. 21 or the main menu screen 34) is changed to a screen corresponding to roaming. For this reason, for example, it is possible to respond to changes in the needs of functions specific to roaming that are different from those in the home network, improving user convenience when operating each function when using roaming. Can be made. As a result, the use of the mobile communication terminal 1 at a roaming destination such as overseas is also promoted.

  In addition, when the roaming detection unit 11 detects the use of roaming, the roaming elapsed time counting unit 15 counts the elapsed time from the start of roaming, and the display control unit 16 further includes the roaming elapsed time counting unit 15. Change the screen according to the counted elapsed time. With this configuration, it is possible to cope with changes in the function needs according to the elapsed time of roaming, and it is possible to further improve the convenience of the user when operating each function when using roaming.

  In addition, when the roaming detection unit 11 detects the use of roaming, the roaming identification unit 12 identifies the type of the network that is in the area, and the display control unit 16 further identifies the network identified by the roaming identification unit 12. Change the screen according to the type. With this configuration, it is possible to respond to changes in the function needs according to the type of the visited network during roaming, and to further improve user convenience when operating each function when using roaming. Can do.

  The overseas menu creation unit 13 creates an overseas convenient function menu screen 22 that summarizes frequently used functions during roaming among the functions that can be used in the mobile communication terminal 1, and the display control unit 16 creates the overseas menu. It is preferable to display an icon 21b linked to the overseas convenient function menu screen 22 created by the unit 13 on the screen. With this configuration, it is possible to easily find a function necessary for roaming by referring to the overseas convenient function menu screen 22 using the icon 21b, and the convenience of the user when operating each function when using roaming. Can be further improved.

  In addition, the unusable function selection unit 14 selects a function that cannot be used during roaming or a function that does not need to be used, and the display control unit 16 has a function selected by the unusable function selection unit 14 on the main menu screen 23. When selected through a user operation, the user is informed that the function cannot be used. Therefore, the availability of each function can be clearly presented to the user of the mobile communication terminal, and as a result, the convenience of the user when operating each function can be further improved when using roaming. .

  The display control unit 16 hides the function selected by the unusable function selection unit 14 on the main menu screens 33 and 34. Here, the display control unit 16 hides the functions that cannot be used during roaming from the main menus 33 and 34 when the roaming elapsed time exceeds a predetermined value, that is, when the staying time at a roaming destination such as overseas becomes long. . In addition, setting-related functions at roaming destinations are not functions that are frequently used repeatedly, and functions such as usage guides at roaming destinations become less necessary as the staying period at roaming destinations becomes longer. . In this way, the display control unit 16 also hides functions that need not be used at the roaming destination from the main menus 33 and 34. For this reason, unnecessary functions are not displayed during roaming, and a desired function can be found more easily. As a result, when using roaming, the convenience of the user when operating each function can be further improved, leading to promotion of the use of the mobile communication terminal 1 overseas.

  The mobile communication terminal 1 and the screen display control method according to the present invention have been described with reference to the preferred embodiments, but the present invention is not limited to the above embodiments. In the embodiment described above, the overseas menu creation unit 13 extracts functions that are designated in advance as having a high frequency of use during roaming, such as when traveling abroad. The extraction function may be changed.

  In the above embodiment, the unusable function selection unit 14 selects a function that cannot be used in this type of network according to the type of the visited network identified by the roaming identification unit 12. The function to be selected may be changed depending on the network, or the function to be selected may be changed in consideration of both the network type and the roaming elapsed time. Also, only functions that cannot be used when using roaming may be set in advance.

  Further, in the above embodiment, the situation where the mobile communication terminal 1 uses the roaming service is exemplified as the situation where the mobile communication terminal 1 is in a foreign country other than the home country (when traveling abroad), but is different from the home network in the home country. It can also be applied when the user is in the network. In this case, the expression “overseas” used in the above embodiment can be replaced with “when roaming”. In addition, the expression “home country” used in the above embodiment can be replaced with “home network” or the like.

  In addition, “a function that cannot be used during roaming or a function that is not necessary during roaming” means that the unusable function selection unit 14 or the display control unit 16 is classified for each short-stay menu and long-stay menu in consideration of elapsed time. It may be configured to select various functions. For example, functions related to overseas settings are not functions that are frequently used repeatedly, and functions such as travel guides for travel destinations will become less necessary if the period of stay overseas is longer. As described above, when the stay in overseas is prolonged, the function that becomes less necessary to use overseas is reduced, and when the elapsed time becomes long, the unusable function selection unit 14 further selects the function from the main menu in the long-stay menu. It can also be hidden.

  DESCRIPTION OF SYMBOLS 1 ... Mobile communication terminal, 11 ... Roaming detection part (detection means), 12 ... Roaming identification part (identification means), 13 ... Overseas menu preparation part (creation means), 14 ... Unusable function selection part (selection means), 15 ... roaming elapsed time counting part (counting means), 16 ... display control part (display control means), 21 ... standby screen, 21b ... icon, 22 ... overseas convenient function menu screen (list screen), 33 ... main menu (menu screen) ).

Claims (7)

In mobile communication terminals that can use roaming,
Detection means for detecting the use of roaming;
When the use of roaming is detected by the detecting means, a counting means for counting an elapsed time from the start of roaming;
Wherein the use of roaming is detected by the detecting means, display control of the screen for selecting a desired function the user is changed to a screen corresponding to the elapsed time counted by the Rutotomoni said counting means according to the roaming Means,
A mobile communication terminal comprising: When the use of roaming is detected by the detection means, an identification means for identifying the type of network that is in service is provided,
The mobile communication terminal according to claim 1, wherein the display control unit further changes the screen according to the type of the network identified by the identification unit. A creation means for creating a list screen that summarizes frequently used functions during roaming among functions available in the mobile communication terminal,
The mobile communication terminal according to claim 1 or 2 , wherein the display control unit displays an icon linked to the list screen created by the creating unit on the screen. It has a selection means to select functions that are not available or need not be used when roaming,
The display control means presents to the user that the function cannot be used when the function selected by the selection means is selected through a user operation on the screen. The mobile communication terminal according to any one of to 3 . The mobile communication terminal according to claim 4 , wherein the display control unit hides a function that can be selected by the selection unit on the screen. It has a selection means to select functions that are not available or need not be used when roaming,
The display control means, when the elapsed time counted by the counting means does not exceed a preset threshold, when the function selected by the selection means is selected through a user operation on the screen. In addition, when the elapsed time counted by the counting means exceeds a preset threshold value, the function that can be selected by the selecting means is not displayed on the screen. The mobile communication terminal according to claim 1, wherein the mobile communication terminal is a display. A screen display control method by a mobile communication terminal that can use roaming,
A detection step for detecting the use of roaming;
When the use of roaming is detected in the detection step, a counting step for counting an elapsed time from the start of roaming;
Wherein the use of roaming is detected in the detection step, the display control of the screen for selecting a desired function the user is changed to a screen corresponding to Rutotomoni the counting the elapsed time counted in step depending on the roaming Steps,
A screen display control method comprising:

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