JP2008040831A - Mobile communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display a reception time of an e-mail in local time corresponding to a reception time zone. <P>SOLUTION: A reception time information registration part 12 of a mobile phone 10 registers reception time information of an e-mail received by a mail reception part 11, in a reception time information file 19. A display reception time calculation part 13 calculates the display reception time of the reception mail in local time corresponding to a terminal time zone which is set in the mobile phone 10 in receiving the e-mail, as by using a mail transmission time included in a mail header of the e-mail received by the mail reception part 11 and a difference between a server time zone included in the mail header of the e-mail and the terminal time zone set in the mobile phone 10. A reception mail list display part 14 displays a list of reception mails with display reception times in a reception time display part, on a display screen. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile communication terminal.

Conventionally, when a mobile communication terminal moves between regions having different time zones, a function is provided for calculating the local time of the destination and automatically correcting the display time of the mobile communication terminal to the calculated local time ( See Patent Document 1 below). Here, the time zone is a standard time zone for each region in the world. This time zone is represented by a time difference from Greenwich Mean Time (GMT) measured by the Greenwich Observatory in the United Kingdom, and is represented within a range of −12 hours to +12 hours.
Japanese Patent Laid-Open No. 2004-236103

  By the way, in Patent Document 1 described above, when the display time is automatically corrected to the local time, the mail reception time can be collectively corrected to the destination local time. However, in this case, there is a problem that the reception times of all e-mails received in the past are forcibly changed to the local time of the destination.

  Therefore, in order to solve the above-described problems, an object of the present invention is to provide a mobile communication terminal capable of displaying an e-mail reception time at a local time corresponding to a time zone at the time of reception.

  The mobile communication terminal of the present invention includes an e-mail transmission time attached to an e-mail received via a mail server, and a difference between a time zone set in the mail server and a time zone set in the own terminal Display reception time calculation means for calculating the display reception time to be displayed as the time when the e-mail was received using the local time corresponding to the time zone set in the terminal when the e-mail was received, and the display reception time Display means for displaying the display reception time calculated by the calculation means on the display screen as the reception time of the e-mail.

  According to the present invention, the e-mail transmission time attached by the mail server is set to the time zone set in the own terminal at the time of receiving the e-mail using the difference between the time zone of the mail server and the time zone of the own terminal. Therefore, the reception time of each e-mail can be displayed in the local time corresponding to the time zone at the time of reception.

  In the mobile communication terminal of the present invention, the display means includes a determination means for determining whether or not a time zone set in the terminal matches a predetermined time zone, and the determination means When the time zone set in is determined to be inconsistent with the predetermined time zone, it further comprises an index providing means for providing an index for identifying that the time zone is received outside the predetermined time zone. preferable.

  In this way, it is possible to easily determine whether or not the email is received in a predetermined time zone.

  In the mobile communication terminal of the present invention, the e-mail transmission time is converted into a time corresponding to a specific time zone fixed and set in advance, and the converted time is calculated by the display reception time calculation means. It is preferable that storage means for storing the information in association with the display reception time is further provided, and the display means displays the display reception time in the order of the time after conversion stored by the storage means.

  In this way, it is possible to display the received e-mails in descending order or ascending order of the converted time. That is, since the received e-mails can be displayed in the order based on Greenwich Mean Time, the contents of the e-mail can be easily referred to in time series.

  According to the mobile communication terminal of the present invention, the reception time of the electronic mail can be displayed in the local time corresponding to the time zone at the time of reception.

  Embodiments of a mobile communication terminal according to the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted.

  FIG. 1 is a diagram illustrating a configuration of a communication system in the embodiment. As shown in FIG. 1, the communication system includes a mobile phone 10 (mobile communication terminal) and a mail server 20.

  The mobile phone 10 is a mobile communication terminal that performs wireless communication with a base station (not shown) that covers a wireless area in which the mobile phone is located and receives a call service or a packet communication service. The mobile phone 10 is equipped with an automatic time difference correction function. The automatic time difference correction function is a function for automatically correcting the terminal set time of the mobile phone 10 to the local time corresponding to the area where the mobile phone 10 is located.

  Here, the cellular phone 10 internally measures the time corresponding to Greenwich Mean Time. The time corresponding to Greenwich Mean Time may be obtained from the mobile communication network. In addition, the cellular phone 10 sets the time zone of the area in the area included in the control signal received from the mobile communication network in the memory as its own time zone. For example, when the mobile phone 10 is in the communication area of Japan, “GMT + 9” (Japan Standard Time) is set as the time zone of the mobile phone 10 and the mobile phone 10 is in the communication area of Hawaii. , “GMT-10” (Hawaii Standard Time) is set as the time zone of the own device. The mobile phone 10 calculates the local time using the Greenwich Mean Time and its own time zone, and uses this local time as the terminal set time. For example, the time corresponding to Greenwich Mean Time measured internally is “2006/3/1 0:00”, and the time zone of the device set at that time is “GMT + 9” (Japan Standard Time) In this case, “2006/3/1 9:00” is calculated as the local time, and this local time is displayed as the terminal set time. Similarly, for example, when the Greenwich Mean Time is “2006/3/2 18:00” and the time zone of the own device is “GMT-10”, the local time is “2006/3/2”. 8:00 "is calculated, and this local time is displayed as the terminal set time. As described above, the mobile phone 10 automatically corrects the terminal set time in accordance with the time zone set in the mobile phone 10.

  In the communication system according to the present embodiment, the mobile phone 10 is described as a specific example of the mobile communication terminal. However, the specific example of the mobile communication terminal is not limited to this, for example, a simple mobile phone (PHS). Or a mobile communication terminal such as a portable information terminal (PDA) having a communication function.

  The mail server 20 is a well-known server that is connected to the Internet or a mobile communication network and transmits / receives e-mail in response to a request from e-mail software installed in a mobile phone or the like belonging to the own network.

  FIG. 2 is a diagram illustrating a functional configuration of the mobile phone 10. As shown in FIG. 2, the mobile phone 10 functionally includes a mail receiving unit 11, a reception time information registration unit 12 (storage unit), a display reception time calculation unit 13 (display reception time calculation unit), A received mail list display unit 14 (display means). The mobile phone 10 is provided with a reception time information file 19 for storing reception time information related to the reception time of the e-mail received via the mail server 20.

  FIG. 3 is a diagram illustrating a hardware configuration of the mobile phone 10. As shown in FIG. 3, the cellular phone 10 physically transmits / receives data to / from a CPU 101, a ROM 102 that is a read-only memory, a RAM 103 that is a readable / writable memory, and an EEPROM 104 that is a non-volatile memory. The computer system includes a communication apparatus 105 as a device, an input key 106 as an input device, and a display 107 as an output device. When the CPU 101 executes computer software installed in the ROM 102 or the EEPROM 104, the functions of the components shown in FIG. 2 are realized. Further, the reception time information file 19 described above is constructed in the EEPROM 104. Note that the mobile phone 10 may be provided with a memory card interface capable of exchanging data with an external memory card. In this case, the reception time information file 19 described above may be constructed on this external memory card.

  Hereinafter, each functional element of the mobile phone 10 will be described in detail with reference to FIG.

  The mail receiving unit 11 receives an e-mail addressed to the mobile phone 10 via the mail server 20.

  The reception time information registration unit 12 registers the reception time information of the electronic mail received by the mail reception unit 11 in the reception time information file 19.

  Here, the data structure of the reception time information file 19 will be described with reference to FIG. The reception time information file 19 includes, for example, a mail identification number, a server transmission time, a terminal time zone, a server time zone, a fixed time zone, a display reception time, and a reference time for comparison as data items.

  The mail identification number shown in FIG. 4 stores an identification number for uniquely specifying the received electronic mail. The server transmission time stores the time when the e-mail is transmitted from the mail server 20 to the mobile phone 10. As this transmission time, for example, the mail transmission time included in the transmission date and time information of the mail header of the electronic mail can be used.

  In the terminal time zone shown in FIG. 4, the terminal time zone set by the own device 10 when the mobile phone 10 receives the e-mail is stored. The server time zone stores the server time zone set in the mail server 20 when an e-mail is transmitted from the mail server 20 to the mobile phone 10. As this server time zone, for example, the server time zone included in the transmission date and time information of the mail header of the e-mail can be used. If the server time zone is fixed, the server time zone does not necessarily need to be stored in the reception time information file, and may be stored anywhere on the memory.

  In the fixed time zone shown in FIG. 4, a time zone unique to the mobile phone 10 is stored. This fixed time zone is not changed depending on the area in which the terminal is located, but is registered in the memory as a fixed value. This fixed time zone is used for specifying the user's residence area (hereinafter referred to as the home time zone), and is used for determining whether or not to display an icon to be described later. In the present embodiment, “GMT + 9”, which is Japan Standard Time, is registered as the fixed time zone. This fixed time zone does not necessarily need to be stored in the reception time information file, but may be stored anywhere in the memory. The fixed time zone may be set arbitrarily by the user.

  The display reception time shown in FIG. 4 stores the display reception time calculated by the display reception time calculation unit 13 described later. The display reception time is not necessarily stored in the reception time information file, and may be calculated by the display reception time calculation unit 13 described later every time the received mail list is displayed.

  The reference time for comparison shown in FIG. 4 stores a time obtained by converting the server transmission time to a time corresponding to a fixed reference time (for example, GMT + 9) that is initially set in the mobile phone. By providing such a reference time for comparison, it is possible to display received mails displayed on the received mail list screen in descending order or ascending order of the reference time for comparison. That is, since the received mail can be displayed in the order based on the Greenwich Mean Time, it becomes easy to refer to the contents of the electronic mail in time series. Note that the fixed reference time initially set in the mobile phone is not limited to GMT + 9, and may be any of GMT-12 to GMT + 12. That is, the fixed reference time may be a specific time zone fixed and set in advance.

  The display reception time calculation unit 13 shown in FIG. 2 calculates the display reception time to be displayed as the time when the electronic mail is received, using the local time corresponding to the terminal time zone set by the own device when the electronic mail is received. . More specifically, the display reception time calculation unit 13 includes a mail transmission time from the mail server 20 attached to the electronic mail received by the mail reception unit 11, and a server time zone set in the mail server 20. And the terminal time zone set in the own device 10, the display reception time is calculated as the local time corresponding to the terminal time zone set in the own device when the electronic mail is received. More specifically, the display reception time calculation unit 13 calculates “display reception time” by calculating “server transmission time” + (“terminal time zone” − “server time zone”).

  Here, a method of calculating the display reception time by the display reception time calculation unit 13 will be specifically described with reference to FIG. First, the reception time information with the mail identification number “0001” shown in FIG. 4 is obtained from the mail server 20 in Japan (GMT + 9) when the mobile phone 10 is located in the communication area in Japan (GMT + 9). This data is registered when an e-mail sent on “2006/3/20 14:10” is received. In this case, the display reception time calculation unit 13 calculates “2006/3/20 14:10” + (“+ 9:00” − “+ 9:00”) and displays “2006/3” as the display reception time. / 20 14:10 ”is calculated. This display reception time is expressed in Japan standard time, which is the local time of the terminal time zone “GMT + 9” when the e-mail is received. Next, the reception time information whose mail identification number is “0002” shown in FIG. 4 is the mail of Japan (GMT + 9) when the mobile phone 10 is located in the communication area of Hawaii (GMT-10). This data is registered when an e-mail sent from the server 20 at “2006/3/19 15:15” in Japan Standard Time is received. In this case, the display reception time calculation unit 13 calculates “2006/3/19 15:15” + (“− 10:00” − “+ 9:00”) and displays “2006/3” as the display reception time. / 18 20:15 ”is calculated. This display reception time is expressed in Hawaii standard time, which is the local time of the terminal time zone “GMT-10” when the e-mail is received.

  The received mail list display unit 14 shown in FIG. 2 displays a received mail list of e-mails on the display screen. The received mail list display unit 14 displays the display reception time calculated by the display reception time calculation unit 13 in the reception time display part of the received mail list. The received mail list display unit 14 includes a determination unit 141 (determination unit) and an icon display unit 142 (index provision unit). The determination unit 141 and the icon display unit 142 perform icon addition processing. Hereinafter, the determination unit 141 and the icon display unit 142 will be described.

  The determination unit 141 compares the terminal time zone of the reception time information corresponding to each received mail displayed in the received mail list with the fixed time zone, and determines whether or not both time zones match.

  When the determination unit 141 determines that the two time zones do not match, the icon display unit 142 displays an icon indicating that the time is received outside the home time zone in the corresponding received mail column of the received mail list. That is, when the terminal time zone matches the fixed time zone, the above icon in the corresponding received mail column is hidden, and when the terminal time zone does not match the fixed time zone, the corresponding received mail column The above icon is displayed. Thereby, it is possible to easily determine whether or not the email is received when the user is in the home time zone by simply identifying the presence or absence of the icon.

  Next, a display screen example of the received mail list will be described with reference to FIG.

  The received mail list screen shown in FIG. 5 is a display example corresponding to the reception time information stored in the reception time information file 19 shown in FIG. First, as shown in FIG. 5, the received time display part of the received mail “1” column displayed at the top of the received mail list is stored corresponding to the mail identification number “0001” shown in FIG. Displayed reception time “2006/3/20 14:10” is displayed. Also, as shown in FIG. 4, since the terminal time zone corresponding to the mail identification number “0001” and the fixed time zone are both coincident with “+9: 00”, the received mail “1” column displays the icon display portion. Does not display an icon. Next, in the reception time display portion of the received mail “2” column shown in FIG. 5, the display reception time “2006/3/18 20:20 stored in correspondence with the mail identification number“ 0002 ”shown in FIG. 15 ”is displayed. Also, as shown in FIG. 4, the terminal time zone and fixed time zone corresponding to the mail identification number “0002” are inconsistent between “-10: 00” and “+9: 00”. In the icon display portion in the “2” column, an icon A indicating that the signal is received outside the home time zone is displayed. The received mails displayed on the received mail list screen shown in FIG. 5 are displayed in descending order of the reference time for comparison. As a result, since the received mail can be browsed in descending order of Greenwich Mean Time, it becomes easy to grasp the contents of the electronic mail in time series.

  Next, with reference to FIG. 6 and FIG. 7, the operation of the mobile phone 10 in the present embodiment will be described. FIG. 6 is a flowchart for explaining the reception time information registration process when registering the reception time information in the reception time information file.

  First, as shown in FIG. 6, the mail receiver 11 of the mobile phone 10 receives an e-mail addressed to the mobile phone 10 via the mail server 20 (step S1).

  Next, the reception time information registration unit 12 of the mobile phone 10 registers the reception time information of the electronic mail received by the mail reception unit 11 in the reception time information file 19 (step S2).

  Next, the display reception time calculation unit 13 of the mobile phone 10 automatically transmits the mail transmission time included in the mail header of the e-mail received by the mail receiving unit 11 and the server time zone included in the mail header of the e-mail. Using the difference from the terminal time zone set in the machine 10, the display reception time is calculated as the local time corresponding to the terminal time zone set in the own machine when the electronic mail is received (step S3).

  Note that the process of step S3 described above is not necessarily performed after the process of step S2, and may be performed before the process of step S2, or both processes may be performed in parallel.

  Next, FIG. 7 is a flowchart for explaining received mail list display processing when displaying a received mail list.

  First, as shown in FIG. 7, when the CPU 101 of the mobile phone 10 detects a received mail list display instruction based on a user operation instruction (step S <b> 11), the received mail list display section 14 displays a display reception time calculation section. The display reception time calculated by 13 is displayed in the reception time display portion of the received mail list, and the icon addition process described above is executed (step S12), and the received mail list is displayed on the display screen (step S13). ).

  As described above, according to the mobile phone 10 of the present embodiment, the e-mail transmission time given by the mail server 20 is determined using the difference between the time zone of the mail server 20 and the time zone of the own device 10. Can be converted to the local time corresponding to the time zone set in the own device 10 when receiving the email, so that the reception time of each e-mail is displayed in the local time corresponding to the time zone at the time of reception. Is possible.

  In the above-described embodiment, the time zone of the service area included in the control signal received from the mobile communication network is set as the time zone of the own device. Not limited. For example, the user may arbitrarily change the setting of the time zone of the own device.

  In the above-described embodiment, the icon is displayed only when the terminal time zone does not match the fixed time zone. However, the method of displaying the icon in the received mail column is not limited to this. For example, icons may be displayed corresponding to all received mails. In this case, for example, an icon prepared for each terminal time zone may be displayed in the received mail list. As a result, it is possible to easily determine in which time zone the electronic mail is received when the user is located only by looking at the icon. Furthermore, it is not limited to displaying an icon in the received mail column. For example, identification may be made by displaying characters in correspondence with the received mail or highlighting a column corresponding to the received mail. That is, it is only necessary to provide an index for identifying that it is received outside the predetermined time zone.

It is a figure which illustrates the system configuration | structure of the communication system in embodiment. FIG. 2 is a block diagram illustrating a functional configuration of the mobile phone illustrated in FIG. 1. It is a block diagram which illustrates the hardware constitutions of the mobile telephone shown in FIG. It is a figure which illustrates the data structure of a reception time information file. It is a figure which illustrates the display screen of a received mail list. It is a flowchart which illustrates the flow of a reception time information registration process. It is a flowchart which illustrates the flow of a received mail list display process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Mobile phone, 11 ... Mail receiving part, 12 ... Reception time information registration part, 13 ... Display reception time calculation part, 14 ... Received mail list display part, 141 ... Determination Part, 142 ... icon display part, 19 ... reception time information file, 20 ... mail server.

Claims (3)

The e-mail is sent using the e-mail transmission time attached to the e-mail received via the mail server and the difference between the time zone set in the mail server and the time zone set in the terminal. A display reception time calculating means for calculating a display reception time to be displayed as a received time at a local time corresponding to a time zone set in the terminal when receiving the e-mail;
Display means for displaying the display reception time calculated by the display reception time calculation means on a display screen as the reception time of the e-mail;
A mobile communication terminal comprising: The display means includes
Determination means for determining whether or not a time zone set in the terminal matches a predetermined time zone;
When the time zone set in the terminal is determined to be inconsistent with the predetermined time zone by the determination unit, an index for identifying that the time zone is received outside the predetermined time zone is added. An index providing means;
The mobile communication terminal according to claim 1, further comprising: The e-mail transmission time is converted into a time corresponding to a specific time zone fixed and set in advance, and the converted time is associated with the display reception time calculated by the display reception time calculation means. Storage means for storing
The mobile communication terminal according to claim 1, wherein the display unit displays the display reception times in the order of the converted time stored in the storage unit.

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