JP4268446B2 - Information communication terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an information communication terminal such as a mobile phone that is used with a recording medium for storing user information.The end of theIt is related.
[0002]
[Prior art]
Conventionally, as this type of information communication terminal, a mobile phone (hereinafter referred to as “USIM compatible mobile phone”) to which a USIM (Universal Subscriber Identity Module) as a recording medium for storing user information can be attached and detached is known. (For example, refer to Patent Document 1). This USIM is composed of, for example, an IC card and is issued from a mobile phone carrier and records information on a user (mobile phone contractor) who uses a USIM compatible mobile phone. By using this USIM by replacing it with a plurality of USIM-compatible mobile phones, the plurality of phones can be used as the same contractor. By enabling such use, the user can use the same contractor even when using a plurality of USIM compatible mobile phones depending on the application.
[0003]
Further, in such a USIM-compatible mobile phone, if the USIM to be inserted is changed, the owner of the newly inserted USIM becomes the contractor. Therefore, the USIM-compatible mobile phone can be used for the purpose of reusing it among a plurality of users. Focusing on such applications, for example, it is possible to provide a service that lends a USIM-compatible mobile phone adapted to a foreign country to a traveler or the like who has come from a foreign country. According to such a service, tourists plug their USIM into the borrowed USIM-compatible mobile phone even if the USIM-compatible mobile phone that they normally use in their home country cannot be used in the foreign country where they travel. Therefore, the mobile phone can be used in the same foreign country as the same contractor. The specifications of mobile phones are not common throughout the world, and mobile phones that are usually used by ordinary travelers are usually used only within the territory of their home country, as described above, regardless of whether they are businessmen who frequently travel abroad. It is not possible. Therefore, the advantage that a mobile phone can be used while being treated as the same contractor by borrowing a USIM compatible mobile phone to which the foreign specifications are applied in a foreign country of travel is very large for travelers and the like. .
[0004]
On the other hand, information communication terminals such as cellular phones generally include time generation means for generating time based on reference time data. The time generated by this time generating means is usually the time applied in the area where the information communication terminal is used. Therefore, for example, if the information communication terminal can be used even in a foreign country, the user can use his / her information communication terminal in a foreign country of travel destination. However, if you use your information communication terminal in a foreign country in this way, you can know the local time if you do not change the time generated by the time generation means of that information communication terminal to the time applicable in the foreign country of your travel destination. Can not. As an information communication terminal capable of easily performing such time change, for example, a mobile phone device disclosed in Patent Document 2 is known. This cellular phone device stores in advance time difference data between the time of the user's home country (Japan) and the time of each country. And by acquiring the country ID code transmitted from the base station, the time difference data corresponding to that country is read, and by adding this time difference data to the time data read from the clock means (Japanese time data), Automatically change the current time setting. With such a time correction function, the current time setting of the mobile phone device is automatically changed to the local time without the user having to change the time setting every time he goes abroad.
[0005]
[Patent Document 1]
JP 2002-135407 A
[Patent Document 2]
JP 2001-36966 A (page 6 right column to page 7 left column)
[0006]
[Problems to be solved by the invention]
Although a conventional USIM-compatible mobile phone is provided with time generating means for generating time, the time generated by this time generating means is the time applied in the country where the USIM-compatible mobile phone is usually used. is there. In such a conventional USIM-compatible mobile phone, the user cannot know the time in an area other than the country in which it is normally used by display or the like.
However, in many countries such as travel destinations, users of USIM-compatible mobile phones want to know not only the local time in the foreign country but also the time in areas other than the local area, such as the time in their home country. In particular, as described above, USIM-compatible mobile phones can be used for applications that are not found in ordinary mobile phones that are used by travelers and the like from abroad. Therefore, USIM-compatible mobile phones have far more opportunities to be used by users whose home country is different from the area where the phones are used, compared to normal mobile phones. For this reason, when a user is in a foreign country, there is a strong demand for a USIM compatible mobile phone to know not only the local time in the foreign country but also the time in a region other than the local time, such as the time in the home country.
[0007]
On the other hand, the mobile phone device disclosed in Patent Document 2 automatically changes the time setting generated by the time generating means to the local time at which the mobile phone device is located. . Therefore, after making such a change, the user can know the local time, but cannot know the time in a region other than the local time.
[0008]
The request to know not only the local time but also the time of the region other than the local time such as the home country is not only for the USIM-compatible mobile phone but also equipped with a recording medium for storing user information such as USIM. The same applies to information communication terminals that can be used.
[0009]
  The present invention has been made in view of the above problems, and an object thereof is to provide an information communication terminal capable of knowing the time in a region other than the site desired by the user.EndIs to provide.
[0010]
[Means for Solving the Problems]
  In order to achieve the above object, the invention of claim 1 has time generating means for generating time,
By replacing and using multiple information communication terminals, the information communication terminals can be used as the same user.In an information communication terminal provided with a detachable recording medium for storing user information in which user information is stored, the recording medium for storing user information includes:To obtain the time of a region different from the region related to the region information in a state associated with each region information for specifying a plurality of regions having different times applied to each otherFor advancing or delaying the time generated by the time generating meanspluralTime increase / decrease data is recorded,Area information acquisition means for acquiring area information for specifying the area where the information communication terminal is located;Calculation means for adding or subtracting time increase / decrease data recorded in the recording medium for storing user information with respect to the time generated by the time generation means;Time increase / decrease data selection means for selecting time increase / decrease data corresponding to the area information acquired by the area information acquisition means from the recording medium for storing user information as time increase / decrease data used by the calculation means for calculation;Time notifying means for selectively notifying the time calculated by the calculating means and the time generated by the time generating means;Registration means for acquiring the time increase / decrease data by downloading from a WEB site and registering the time increase / decrease data in the recording medium for storing user information;It is characterized by comprising.
[0011]
  thisIn the information communication terminal, a calculation for adding or subtracting time increase / decrease data for advancing or delaying this time to the time generated by the time generating means is performed. The time after the calculation and the time generated by the time generation means, that is, the time before the calculation can be selectively notified by a notification means such as a display or a speaker. That is, this information communication terminal is in a state where it is possible to always notify both the time after calculation and the time before calculation, and these times can be selectively notified according to user operations, etc. It has become. Since the time generated by the time generating means is the local time when the information communication terminal is used, the difference between the time generated by the time generating means and the time in the region other than the local where the user wants to know If the time increase / decrease data indicating is stored in advance in a recording medium for storing user information, the user can know the time in a region other than the desired site by the notification means.
  Here, in this information communication terminal, time increase / decrease data used at the time of calculation is recorded on a recording medium for storing user information that is detachably attached to the information communication terminal. The time increase / decrease data is not recorded on a recording medium that is detachable to the information communication terminal like a recording medium for storing user information, but is recorded on a recording medium built in the main body of the information communication terminal. Even if it is recorded, it is possible to perform the above calculation in the same manner. However, an information communication terminal to which a recording medium for storing user information can be attached and detached is characterized in that it can be used for the above-described use of a plurality of users as represented by a USIM compatible mobile phone. And the time other than the local time that the user wants to know varies greatly depending on the user. Therefore, when time increase / decrease data is recorded on a recording medium built in such an information communication terminal body, time increase / decrease data relating to the time of a region that is presumed to be desired by all users is recorded in advance. There must be. On the other hand, in the information communication terminal of this claim, when the user uses the information communication terminal, the time increase / decrease data is recorded on the recording medium for storing the user information attached to the information communication terminal. . Therefore, as long as the user stores the time increase / decrease data related to the time in the region other than the desired site in the recording medium for storing the user information, the information communication terminal main body can be used by a plurality of users. Even when being used repeatedly, it is possible to inform each user of the time in a region other than the site desired by each user.
[0012]
  Also bookIn the information communication terminal, a plurality of time increase / decrease data is recorded on a recording medium for storing user information, and time increase / decrease data used for calculation by the calculation means is selected from the plurality of time increase / decrease data.. ShiTherefore, even if there are multiple times in regions other than the site desired by the user, all these times are stored in the recording medium for storing user information, so that the site desired by the user can be stored locally. It is possible to arbitrarily select a time in a plurality of areas other than the time and know the time.
[0013]
  Moreover, the bookIn the information communication terminal, a plurality of time increase / decrease data stored in a user information storage recording medium are associated with area information for specifying areas where the times applied to each other are different. Then, by acquiring the area information for specifying the area where the information communication terminal is located, the time increase / decrease data selection means selects the time increase / decrease data corresponding to the area information from the recording medium for storing the user information. , Used for calculation processing of the calculation means. Therefore, when the user visits multiple foreign countries, record the time increase / decrease data related to the time of the region other than the local one desired for the local time in the foreign country on the recording medium for storing the user information. If this is the case, when the user visits a foreign country, it is possible to automatically know the time in a region other than the desired site. For example, a network number can be used as the area information. This network number is information unilaterally transmitted from the base station installed in the area where the information communication terminal is located to the information communication terminal, and is generally different for each country. Therefore, by acquiring this network number, the information communication terminal can recognize the country in which the information communication terminal is located.
[0014]
  In addition, bookThe information communication terminal uses the time change dataWEB siteCan be downloaded and registered in a recording medium for storing user information. Therefore, the user can easily register desired time increase / decrease data in the recording medium for storing user information by downloading the time increase / decrease data using the information communication terminal.
[0016]
  The “information communication terminal” includes a PDC (Personal Digital Cellular) system, a GSM (Global System for Mobile Communication) system, a TIA (Telecommunications Industry Association) system mobile phone, IMT (International Mobile Telecommunications) -2000, etc. Standardized mobile phone, PHS (Personal Handyphone System) In addition to telephones such as automobile phones, information communication terminals with mobile phone modules added are also included.
  MaThe control in the information communication terminal can also be realized by executing a predetermined program on a computer provided in the information communication terminal. Delivery of the program used in the computer may be performed using a recording medium such as an FD or a CD-ROM in which the program is recorded as digital information, or may be performed using a communication network such as a computer network.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 2 is a schematic configuration diagram of a USIM compatible mobile phone (hereinafter simply referred to as “mobile phone”) as an information communication terminal according to the present invention. A main body portion 100 of the cellular phone includes a control unit 111, an internal memory 112, a wireless communication unit 113, and an antenna 114. In addition, a microphone 116 and a speaker 117 are connected to the control unit 111 via an audio processing unit 115, a display unit 119 is connected via an image processing unit 118, and a key operation unit 120 and a clock unit 130 are further connected. ing. Further, the mobile phone is configured such that a USIM (Universal Subscriber Identity Module) 122 as a recording medium for storing user information is detachable.
[0018]
The control unit 111 includes, for example, a CPU, a cache memory, a system bus, and the like, and by executing a predetermined control program, data is transmitted to and received from each unit such as the internal memory 112 and the wireless communication unit 113. Or control. The control unit 111 is also used as a control unit that performs control for writing and reading information with the USIM 122 described later.
The internal memory 112 is composed of a semiconductor memory such as a RAM or a ROM, and stores a control program executed by the control unit 111 and various data. The internal memory 112 is also used as content data storage means for storing content data such as images, music, and programs downloaded from information providing sites.
[0019]
The wireless communication unit 113 is controlled by the control unit 111 and performs wireless communication with a base station of the mobile phone communication network 300 through an antenna 114 by a predetermined communication method. Through this wireless communication, voice telephone communication can be performed with a specific mobile phone or the like, and data communication such as transmission / reception of e-mails or content download from an information providing site can be performed.
The voice processing unit 115 encodes the transmission voice signal input from the microphone 116 by a predetermined method and sends the encoded signal to the control unit 111. Also, the voice processing unit 115 decodes the received voice signal received by the wireless communication unit 113 and outputs it from the speaker 117. Further, the voice processing unit 115 outputs a sound signal such as a sound effect used in an incoming melody or an application program stored in the internal memory 112 from the speaker 117.
The image processing unit 118 processes image data received by the wireless communication unit 113 and image data such as icons and menus stored in the internal memory 112, and serves as a time notification unit including a liquid crystal display (LCD). It is displayed on the display unit 119. In addition, the image processing unit 118 receives local time data and home country time data, which will be described later, from the control unit 111, and causes the display unit 119 to display these times.
The key operation unit 120 includes a data input key (ten key, * key, # key), a call start key, an end key, a scroll key, a multi-function key, and the like. Used for scrolling and selecting displayed information.
[0020]
The USIM 122 is composed of an IC card, for example, and is detachable from a USIM slot (not shown) of the mobile phone. This USIM 122 is issued by, for example, a mobile phone carrier, and records information of a user (mobile phone contractor) who uses the mobile phone, time increase / decrease data described later, and the like. By attaching the USIM 122 to a mobile phone, the mobile phone can be used with a predetermined contract. Further, by using this USIM 122 by replacing it with a plurality of mobile phones, the plurality of mobile phones can be used as the same contractor.
[0021]
Further, as shown in FIG. 2, the USIM 122 includes a control unit 122a as a control unit that performs control of reading and writing of data stored in the USIM 122, and a memory 122b as a data storage unit. In addition to the user information storage area for storing the user information, the memory 122b has a different application time from the local (foreign country) where the mobile phone used by the user wearing the USIM is located. A time difference data storage area (time increase / decrease data storage area) for storing time difference data as time increase / decrease data for calculating the home time which is the time of the region (home country) other than the local area is set. Writing and reading of the time difference data with respect to the time difference data storage area is controlled by the control unit 111 on the mobile phone body side.
[0022]
FIG. 3 is an explanatory diagram showing an example of a file system in the memory 122b of the USIM 122. As shown in FIG. In the file system of the memory 122b, there is an MF (Master File) that is the highest directory, and an EF (Elementary File) in which data is actually stored and a DF (Dedicated File) that is a lower directory. Is provided. One of the DFs is set as a directory for time difference data for calculating the home time, and the time difference data is stored in this DF._TD1Create a file.
[0023]
Next, processing for displaying the local time and the user's home time on the display unit 119 of the mobile phone, which is a characteristic part of the present invention, will be described. In the following, an example of a usage mode in which a user takes his / her USIM 122 in a foreign country where he / she travels and attaches the USIM 122 to the main body of the mobile phone conforming to the foreign specifications will be described. However, it is not limited to this use mode.
[0024]
  Figure 1 shows the bookReference example 1It is explanatory drawing of the utilization aspect of USIM attached to the mobile phone in this, and this to detachably.
  In general, the mobile phone body 100A that is usually used in a home country by a user who travels to a foreign country does not conform to the foreign country specifications of the travel destination. For this reason, the mobile phone main body 100A that is usually used cannot be used in a foreign country of travel destination. However, if the user attaches the USIM 122 that he / she normally uses to the mobile phone body 100B conforming to the foreign specifications of the travel destination, he / she can use the mobile phone in that foreign country as if he / she is the same contractor. it can. In this way, when using a mobile phone in a foreign country using the USIM 122, as shown in FIG. 1, the user displays not only the local time but also the time of his / her home country on the display unit 119 of the mobile phone body 100B. In many cases, it is also desirable to display.
  BookReference example 1Since the cellular phone main body 100B used by the user in a foreign country is dedicated to the foreign country, the reference time data of the clock unit 130 is set in advance to the local time data in the foreign country.
[0025]
  The time difference data stored in the memory of the USIM 122 indicates the time difference between the local time in the user's travel destination abroad and the home time in the user's home country. The time difference data is downloaded from a WEB site such as the Internet using the communication function of the mobile phone as shown in FIG. 1 with the USIM 122 mounted on the mobile phone 100A in the home country, for example. The downloaded time difference data is stored in advance in the memory 122b of the USIM 122 before going on a trip. In this case, the antenna 114, the wireless communication unit 113, and the control unit 111 function as a registration unit. Needless to say, the time difference data may be downloaded in a foreign country or other area of travel destination. The WEB server 200, which is an external storage device that provides a WEB site, individually records time difference data of a user's home country and a number of countries having different times applied to the home country. So bookReference example 1Then, the user need only download the time difference data between the time in the foreign country of the travel destination and the time in the home country. Note that the time difference data may be a file in which time difference data of a user's home country and a number of countries where the time applied to the home country is different.
[0026]
  FIG. 4 is a flowchart showing a display control procedure for displaying the home time on the display unit 119 in the foreign-specification mobile phone body 100B. In the following description, the foreign-specification mobile phone body 100B is simply referred to as the mobile phone body 100.
  First, when a user who has come to a foreign country attaches his / her USIM 122 to the foreign-specification mobile phone body 100 and turns on the power of the mobile phone (S1), the control unit 111 reads the reference time data from the clock unit 130. (S2). In addition, this reference time data shows the local time in the foreign country of a travel destination as above-mentioned. The control unit 111 that has read the reference time data performs a local time counting process for generating the local time based on the clock signal with reference to the reference time data (S3). So bookReference example 1Then, the time generation means is realized by the control unit 111 and the clock unit 130. Also, a time difference data read command is transmitted from the mobile phone body 100 to the USIM 122. This time difference data read command is a predetermined file EF in the USIM 122._TD1A standard APDU (Application Program Data Unit) command between the USIM and the mobile phone body 100 is used. Specifically, a “READ BINARY” command is transmitted from the mobile phone body 100 to the USIM 122. The time difference data read from the USIM 122 is transmitted from the USIM 122 to the mobile phone body 100 as an APDU response (S4).
[0027]
  In this way, the control unit 111 of the mobile phone body 100 that has received the time difference data from the USIM 122 functions as a calculation unit, and calculates the home time (S5). Specifically, the control unit 111 performs a process of adding the time difference data read from the USIM 122 to the local time data generated in the local time counting process. BookReference example 1The time difference data indicates the time difference based on the local time in the destination country, so the time difference data is added to the local time data, but the time difference data indicates the time difference based on the home time. If it is, the time difference data is subtracted from the local time data. The home time data and local time data calculated by such processing are output from the control unit 111 to the image processing unit 118 (S6).
[0028]
The calculation of the home time by the control unit 111 may be performed every time counting is performed in the local time counting process. However, in order to reduce power consumption, the calculation interval is set longer than the count interval. Is desirable. For example, every time the local time is counted twice, the home time may be calculated once. Further, the calculation time interval of the home country time may be set according to the display format of the home time displayed on the display unit 119. For example, if the display format of the home country time is not only the hour and minute but also displays the second, the home time is calculated at least once every second, and the display time of the home time is only the hour and minute. If so, the home time is calculated at least once per minute.
When the time difference data is first read out, the time difference data is stored in the cache memory of the control unit 111, and the time difference data is read not from the USIM 122 but from the cache memory when calculating the second and subsequent home time. The home time may be calculated.
[0029]
Upon receiving the local time data and the home time data from the control unit 111, the image processing unit 118 displays the local time and the home time on the display unit 119 based on these data (S7). Note that whether or not to display the local time or the home country time on the display unit 119 may be arbitrarily selected by the user by operating the key operation unit 120. A certain speaker 117 may notify the user of the local time or the home country time by voice or the like. In this case, notification may be made by voice or the like only when the user performs a specific operation on the key operation unit 120.
[0030]
  This is the bookReference example 1According to the above, when a user takes his / her USIM 122 in a foreign country of travel destination and uses it by attaching it to the mobile phone body 100B conforming to the foreign specifications, the display unit of the mobile phone body In 119, not only the local time but also the home country time can be displayed. Therefore, the user can know not only the local time but also the time in his / her home country in the foreign country of the travel destination.
[0031]
  The aboveReference example 1Then, file EF of USIM122_TD1Stores only the time difference data between the time in the foreign country of the travel destination and the time in the home country. Therefore, the USIM 122 can transmit appropriate time difference data to the mobile phone body 100 only by receiving a time difference data read command from the mobile phone body 100. However, USIM122 file EF_TD1A plurality of time difference data is stored in the USIM 122 or a plurality of files EF_TD1Is stored, it is necessary to specify which time difference data is to be read out. So we will explain belowExamples and Reference Example 2Then, when a plurality of time difference data is stored in the USIM 122 in this way, appropriate time difference data to be used for the calculation process of the home country time by the control unit 111, that is, the time in the foreign country of the travel destination and the time in the home country A process for selecting the time difference data from the plurality of time difference data will be described.
[0032]
[Example]
  First, a plurality of time difference data indicating the time difference between the home country time and the times of a plurality of countries (including travel destination foreign countries) to which a time different from the home country time is applied is recorded in the USIM 122.Examples of the present inventionWill be described.
  Figure 5 shows the bookExample5 is a flowchart showing a flow of processing for reading appropriate time difference data from the USIM 122.
  FIG. 6 is a sequence diagram showing a communication procedure among the mobile phone communication network 300, the mobile phone main body 100, and the USIM 122 in a foreign country of travel destination.
[0033]
  As shown in FIG. 6, the control unit 111 of the mobile phone controls the wireless communication unit 113 to transmit a location registration request from the antenna 114 to the mobile phone communication network 300 at a predetermined timing. When the location registration request is received by the base station of the mobile phone communication network 300, the location registration of the mobile phone is performed in a management server having a location registration database. After the location registration, the mobile phone communication network 300 transmits an authentication request to the mobile phone, and the mobile phone that has received the request transmits an authentication response to the mobile phone communication network 300. As a result, the mobile phone communication network 300 transmits a location registration completion notification indicating that the location registration has been completed to the mobile phone, and the mobile phone that has received the notification receives a notification that the location registration completion notification has been received. Send a response. In this way, the management server can always grasp the base station that is performing wireless communication with the mobile phone, and has established wireless communication with the mobile phone.
  Note that the above-described authentication request includes a network number as regional information allocated to each radiotelephone carrier. And booksExampleRecognizes the country where the mobile phone is located from the network number.
[0034]
Specifically, as illustrated in FIG. 5, when the control unit 111 receives a network number included in the authentication request by the area information acquisition unit including the wireless communication unit 113 and the antenna 114 (S11), the time increase / decrease data It functions as a selection means. The internal memory 112 stores time difference data specifying information for specifying country time difference data corresponding to each network number in association with the network number. Therefore, the control unit 111 acquires the time difference data specifying information corresponding to the received network number from the internal memory 112, so that appropriate time difference data to be read from the USIM 122 (time difference data indicating the time difference between the local time and the home country time) is acquired. Can be specified (S12). And the control part 111 transmits the time difference data read command for reading the specified time difference data to USIM122, and reads the time difference data (S13).
[0035]
  Like thisExampleAccordingly, the time difference data of the local time and the home country time can be automatically read out from the USIM 122 storing a plurality of time difference data based on the network number. Thereby, even if the user stores a plurality of time difference data respectively corresponding to a plurality of foreign countries in his / her USIM 122, the user can appropriately know the time of his / her home country in the travel destination foreign country.
[0036]
[Reference example 2]
  Next, a plurality of time difference data indicating the time difference between the local time in the foreign country of the travel destination and the specific time (including the home country time) of a plurality of specific areas to which different times apply are recorded in the USIM 122. ingOther reference examplesWill be described.
  Figure 7 shows the bookReference example 25 is a flowchart showing a flow of processing for reading appropriate time difference data from the USIM 122.
[0037]
  BookReference example 2When the user performs a specific operation on the key operation unit 120 of the mobile phone, the time difference data corresponding to the country that the user wants to display at a time other than the local time is selected on the display unit 119 of the mobile phone. A time difference data selection screen is displayed (S21). In this time difference data selection screen, for example, a list of a plurality of time difference data stored in the USIM 122 is displayed, and the user operates the key operation unit 120 as the time increase / decrease data selection means to thereby obtain the desired time difference data. Can be selected. When this operation content is input to the control unit 111, the control unit 111 recognizes the time difference data selected by the user based on the operation content (S22). And the control part 111 transmits the time difference data read command for reading the time difference data which the user selected to USIM122, and reads the time difference data (S23).
[0038]
  Like thisReference example 2According to the above, the time difference data between the local time and the home time can be read out from the USIM 122 storing a plurality of time difference data by the user's selection. Also bookReference example 2Thus, the user can freely select from a plurality of time difference data stored in the USIM 122 as described above. Therefore, if the user in a foreign country of the travel destination stores time difference data corresponding to the country in which the user wants to know the time other than the foreign country in the USIM 122 in advance, the time of the home country is displayed by the user's selection in that foreign country. Or display the time of a third country that is neither the local nor the home country.
[0039]
  As mentioned aboveReference example 1In order to simplify the explanation, the case where the home country and the destination foreign country are countries where a single time is applied is described as an example, but different times are applied in multiple regions in the country. Even in the case of a country, the same applies if “country” in the above description is replaced with “region”.
  The present invention can also be applied to information communication terminals other than mobile phones as long as the user information storage recording medium such as the USIM 122 is detachable.
[0040]
【The invention's effect】
  According to the first to fifth aspects of the invention, there is an excellent effect that it is possible to know the time in a region other than the site desired by the user.
[Brief description of the drawings]
FIG. 1 of the present inventionReference example 1Explanatory drawing of the utilization aspect of USIM attached to the mobile phone which concerns on this, and this so that attachment or detachment is possible.
FIG. 2 is a schematic configuration diagram of the mobile phone.
FIG. 3 is an explanatory diagram of a file system in the USIM.
FIG. 4 is a flowchart showing a display control procedure for displaying the home time on a display unit in a foreign-specification mobile phone body;
[Figure 5]ExampleThe flowchart which shows the flow of the process for reading suitable time difference data from USIM in FIG.
FIG. 6 is a sequence diagram showing a communication procedure among a mobile phone communication network, a mobile phone main body, and a USIM in a foreign country of travel destination.
[Fig. 7]Reference example 2The flowchart which shows the flow of the process for reading suitable time difference data from USIM in FIG.
[Explanation of symbols]
  100 Mobile phone body
  111 Control unit
  122 USIM (Recording medium for storing user information)
  130 Clock
  200 Web server
  300 Mobile phone communication network

Claims (1)

Having time generating means for generating time,
A user information storage recording medium that stores user information that allows users to use the information communication terminals by replacing them with multiple information communication terminals. In the information and communication terminal provided at will,
In the recording medium for storing user information, the time of a region different from the region related to the region information is associated with each region information for specifying a plurality of regions different in time applied to each other. A plurality of time increase / decrease data for advancing or delaying the time generated by the time generating means to obtain
Area information acquisition means for acquiring area information for specifying the area where the information communication terminal is located;
Calculation means for adding or subtracting time increase / decrease data recorded in the recording medium for storing user information with respect to the time generated by the time generation means;
Time increase / decrease data selection means for selecting time increase / decrease data corresponding to the area information acquired by the area information acquisition means from the recording medium for storing user information as time increase / decrease data used by the calculation means for calculation;
Time notifying means for selectively notifying the time calculated by the calculating means and the time generated by the time generating means ,
An information communication terminal comprising: registration means for acquiring the time increase / decrease data by downloading from a WEB site and registering the time increase / decrease data in the user information storage recording medium .

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