JP5119841B2 - Portable communication device - Google Patents

Description

  The present invention relates to a portable communication device that can perform transmission / reception and transmission / reception of e-mails and can display on the display section that an incoming call has been received.

  In portable communication devices used for transmission / reception and transmission / reception of e-mails, such as mobile phone terminals and PHS (Personal Handy-phone System) terminals, secondary batteries are frequently used as the power source. Although the performance of the secondary battery is being improved today, the power consumption of the portable communication device is reduced so that the portable communication device can be used for as long as possible with a single charge. There are various devices for this purpose.

  For example, many mobile phone terminals are provided with a function of reducing power consumption by darkening the display screen when there is no operation for a certain period of time. Further, in Patent Document 1, when the remaining battery level is below a reference value, the operation of the incoming call notification function is restricted at least during a call, specifically, power supply to the display unit and power supply to the backlight control unit A communication terminal device is described in which power supply, power supply to a ringtone control circuit, and power supply to a vibrator control unit are stopped to reduce power consumption.

JP 2000-253142 A (stage 0161, FIGS. 8 and 9)

  However, the incoming call to the portable communication device is regardless of the remaining battery level of the portable communication device, and the remaining battery level is low as in one aspect of the communication terminal device described in Patent Document 1. If the incoming call notification function is sometimes stopped, the user is not notified of any incoming call or e-mail, so the convenience of the portable communication device is impaired. In addition, when the incoming call notification function is stopped only during a call with a low battery level as in another aspect of the communication terminal device described in Patent Document 1, if there is an incoming call during a non-call with a low battery level Since the incoming call notification function operates normally and power consumption proceeds in the display unit or the like, it is difficult to obtain a high power saving effect.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a portable communication device that can notify a user of an incoming call with low power consumption.

  The portable communication device of the first invention that achieves the above object has a plurality of operation modes with different power consumption, and can display predetermined incoming call information on a display unit when an incoming call is received. The communication device includes a plurality of operation modes including a use time extension mode, and during the use time extension mode, there is a display command for instructing display of incoming call information while keeping the display unit basically in a non-display state. Sometimes, the display unit is operated for a predetermined period to display the incoming call information.

  In this portable communication device, the display unit is basically kept in the non-display state during the usage time extension mode, and when the incoming information display command is issued, the display unit is operated for the first time to display the incoming information. If the operation mode is set to the usage time extension mode, the power required to notify the user of the presence or absence of an incoming call can be suppressed. The user can be notified of an incoming call with low power consumption.

  The portable communication device of the second invention is included in the portable communication device of the first invention, and further includes a mode designating unit that designates the operation mode as the usage time extension mode. In this portable communication device, the operation mode of the portable communication device can be switched to the usage time extension mode at an arbitrary time regardless of the remaining battery level, so that it can be compared with the portable communication device of the first invention. However, it is easy to save power.

  A portable communication device of a third invention is included in the portable communication device of the second invention, and the mode designating unit includes a side key arranged on a side surface. In this portable communication device, the operation mode can be designated as the usage time extension mode by pressing the side key, so that it is easy to prevent an erroneous operation when the operation mode is designated.

  A portable communication device according to a fourth aspect of the present invention is included in the portable communication device according to any one of the first to third aspects of the present invention. And an operation mode control unit that automatically shifts the operation mode to the use time extension mode when the detection result of the remaining battery level by the detection unit falls below the condition value. In this portable communication device, even when the user forgets to switch the operation mode to the usage time extension mode, if the remaining battery level falls below the condition value, the mobile communication device automatically shifts to the usage time extension mode. Compared with the portable communication device of the second invention, the convenience is high.

  A portable communication device according to a fifth aspect of the present invention is included in the portable communication device according to any one of the first to fourth aspects of the present invention, and includes a main display unit and an auxiliary disposed on the back side of the main display unit. A foldable mobile phone terminal having a main display portion on the inside, and the incoming call information is displayed on the auxiliary display portion. In this portable communication device (mobile phone terminal), since the incoming call information is displayed on the auxiliary display unit, it is easy for the user to check whether there is an incoming call even when it is still in a pocket or bag, etc. It is easy to reduce the power consumption when notifying.

  Since the portable communication device of the present invention can notify the user of the presence or absence of an incoming call with low power consumption, it can extend the usable time by suppressing the power consumption caused by the incoming call. When the remaining battery level is low, the user's anxiety that the battery will run out before charging can be eased.

  Hereinafter, embodiments of a portable communication device according to the present invention will be specifically described with reference to the accompanying drawings. In addition, this invention is not limited to the Example demonstrated below.

  FIG. 1 is a perspective view schematically showing an example of a portable communication device of the present invention. A portable communication device 70 shown in the figure is a mobile phone terminal (hereinafter referred to as “mobile phone terminal 70”) having a function as a telephone terminal and a function of transmitting and receiving an e-mail. And the like, an input unit 10 used for inputting information, a main display unit 15 for displaying telephone numbers and e-mail texts input from the input unit 10, and an auxiliary display unit 20 for displaying incoming call information and time. is doing.

  FIG. 1 also shows a numeric keypad 1, a menu key 3, and a side key 5 arranged on the side surface constituting the input unit 10. The numeric keypad 1 is used, for example, for inputting numbers, characters, characters, and the like, and the menu key 3 is used for, for example, a display instruction or function selection for a function selection screen of the mobile phone terminal 70. The side key 5 is used for inputting a command such as an instruction to connect to a mail center or an instruction to display incoming information. The side key 5 is also used as a mode designating unit for instructing a shift to a usage time extension mode to be described later.

  The illustrated cellular phone terminal 70 is a foldable type that can be folded in two with the main display portion 15 on the inside, and a usage time extension mode that can notify the user of the presence or absence of an incoming call with low power consumption. It has. During the usage time extension mode, even if there is an incoming call, the auxiliary display unit 20 is not displayed until a display command is issued, and when there is a display command, the auxiliary display unit 20 operates and displays incoming call information for the first time. . For this reason, if the operation mode is set to the usage time extension mode, the power required to notify the user of the presence or absence of an incoming call can be suppressed. Hereinafter, the configuration of the mobile phone terminal 70 will be specifically described with reference to FIG. 2, and then the operation of the mobile phone terminal 70 will be specifically described with reference to FIG. 3.

  FIG. 2 is a block diagram schematically showing the mobile phone terminal 70 shown in FIG. As shown in the figure, in addition to the input unit 10, the main display unit 15, and the auxiliary display unit 20 described above, the mobile phone terminal 70 includes a transmission unit 25, a reception unit 30, a transmission / reception processing unit 35, and an antenna unit 40. A control unit 50, a storage unit 55, an incoming call notification unit 60, a power supply unit 65, and a remaining battery level detection unit 67.

  The transmitter 25 converts the input voice into an electrical voice signal and sends it to the transmission / reception processor 35. In addition, the receiver 30 synthesizes and outputs voice based on the electrical voice signal sent from the transmission / reception processor 35.

  The transmission / reception processing unit 35 converts destination information and source information sent from the control unit 50 in the form of an electrical signal when making a call into a radio wave signal, sends it to the antenna unit 40, and sends it from here. When making a telephone response, voice data is created based on the voice signal sent from the transmitter 25 and transmitted from the antenna unit 40, and the voice data received via the antenna unit 40 is sent to a predetermined voice. It is converted into a signal and sent to the receiver 30.

  In addition, when receiving a call signal via the antenna unit 40, the transmission / reception processing unit 35 extracts transmission source information from the call signal and converts it into an electric signal, which is sent to the control unit 50. When a telephone response is made subsequent to the reception of the calling signal, the voice data received via the antenna unit 40 is converted into a predetermined voice signal and sent to the receiver 30 and the voice signal sent from the transmitter 25 The voice data is created based on the above and transmitted from the antenna unit 40.

  When sending an e-mail, e-mail information including character / graphic information corresponding to the e-mail text to be sent, destination information, and source information is sent from the control unit 50 to the transmission / reception processing unit 35 in the form of an electrical signal. Sent. The transmission / reception processing unit 35 creates e-mail data based on the e-mail information and transmits it from the antenna unit 40. When receiving e-mail data via the antenna unit 40, the character / graphic information corresponding to the mail text and the sender information are separately extracted from the e-mail data, and these are converted into electric signals for control. Send to part 50.

  The control unit 50 includes a main display unit 15, an auxiliary display unit 20, a transmission unit 25, a reception unit 30, a transmission / reception processing unit 35, according to a control program stored in advance in the storage unit 55 or a command input from the input unit 10. Alternatively, the operation of the incoming call notification unit 60 is controlled. For this purpose, the control unit 50 includes a command processing unit 41, a first communication control unit 43, a second communication control unit 45, a display control unit 47, and an operation mode control unit 49.

  The command processing unit 41 includes a first communication control unit 43, a second communication control unit 45, a display control unit 47, and an operation mode control unit 49 according to a command input from the input unit 10. Control the behavior.

  The first communication control unit 43 controls the operations of the transmitting unit 25, the receiving unit 30, and the transmission / reception processing unit 35 to cause the mobile phone terminal 70 to function as a telephone terminal. The transmission source information is converted into an electrical signal and sent to the transmission / reception processing unit 35. Since the destination information is input from the input unit 10 and stored in the storage unit 55, and the source information is stored in the storage unit 55 in advance, the first communication control unit 43 receives these information when making a call. Is read from the storage unit 55 and converted into an electrical signal. Further, when a call is received (when a call signal is received), the transmission source information sent from the transmission / reception processing unit 35 is stored in the storage unit 55 and a predetermined first received signal is sent to the display control unit 47. . Furthermore, when there is an incoming call in a power saving mode or a normal mode described later, the incoming call notification unit 60 is operated.

  The second communication control unit 45 controls the operation of the transmission / reception processing unit 35 at the time of transmission / reception of an electronic mail. At the time of transmission of the electronic mail, character / graphic information corresponding to the mail text, transmission destination information, and transmission source The electronic mail information including the information is converted into an electric signal and sent to the transmission / reception processing unit 35. The transmission destination information is input from the input unit 10 and stored in the storage unit 55. Since the transmission source information is stored in advance in the storage unit 55, the second communication control unit 45 transmits these information at the time of transmission of the e-mail. Information is read from the storage unit 55 and converted into an electrical signal. When receiving an e-mail, the transmission source information sent from the transmission / reception processing unit 35 is stored in the storage unit 55 and a predetermined second received signal is sent to the display control unit 47. Furthermore, when there is an incoming call in a power saving mode or a normal mode described later, the incoming call notification unit 60 is operated.

  Note that the destination information at the time of making a call is stored in the storage unit 55 as the destination phone number information or as proper noun information associated with the phone number information. The same applies to the transmission source information at the time of call origination, the transmission source information at the time of call arrival, the transmission destination information at the time of e-mail transmission, the transmission source information at the time of e-mail transmission, and the transmission source information at the time of e-mail reception. It is also possible to send / receive calls and send / receive e-mails without disclosing such information.

  The display control unit 47 controls the operations of the main display unit 15 and the auxiliary display unit 20. For example, when a telephone number or mail text is input from the input unit 10, the operation of the main display unit 15 is controlled so that these are displayed on the main display unit 15 as character / graphic information. When the received electronic mail is opened, the mail text is displayed on the main display unit 15. When the first received signal is received from the first communication control unit 43 at the time of incoming call (when receiving the calling signal), the sender information stored in the storage unit 55 is read and sent to the auxiliary display unit 20. When the sender information is not disclosed, information indicating that there is an incoming call is sent to the auxiliary display unit 20. Similarly, when a second received signal is received from the second communication control unit 45 when an e-mail is received, the transmission source information stored in the storage unit 55 is read and sent to the auxiliary display unit 20. When the sender information is not disclosed, information indicating that an e-mail has been received is sent to the auxiliary display unit 20.

  However, the display control unit 47 basically keeps the main display unit 15 and the auxiliary display unit 20 in a non-display state during a use time extension mode to be described later. Even if the first reception signal is received from the first communication control unit 43 or the second reception signal is received from the second communication control unit 45, the auxiliary display unit 20 receives the incoming information (source information, transmission source). Information). The auxiliary display unit 20 is operated for a predetermined period only when there is a display command for instructing display of incoming information, and the incoming information is sent to the auxiliary display unit 20 for display.

  The operation mode control unit 49 controls the operation mode of the mobile phone terminal 70. The cellular phone terminal 70 has a total of three operation modes: a usage time extension mode with the least power consumption, a power saving mode with the second lowest power consumption, and a normal mode with the largest power consumption. The usage time extension mode is entered when the detection value by the remaining amount detection unit 67 falls below the condition value or when a command for specifying the operation mode as the usage time extension mode is input from the input unit 10. For example, the side key 5 in the input unit 10 functions as a mode designating unit, and when the side key 5 is continuously pressed for a predetermined time or longer, it is treated as if the above command has been input, and the mobile phone terminal 70 The operation mode enters the usage time extension mode. The operation mode control by the operation mode control unit 49 will be described in detail later with reference to FIG.

  In addition to storing the control program, transmission destination information, transmission source information, transmission destination information, and transmission source information, the storage unit 55 stores the mail text input from the input unit 10 and the remaining battery level detection unit. A condition value or the like for the detected value of the remaining battery capacity at 67 is also stored.

  The incoming call notification unit 60 is controlled by the first communication control unit 43 or the second communication control unit 45 when an incoming call or e-mail is received, and the incoming call is notified by light, sound, vibration, or the like. Inform the user. However, when the operation mode of the mobile phone terminal 70 is the usage time extension mode, control by the first communication control unit 43 and the second communication control unit 45 is not received, and as a result, notification of incoming calls is not performed.

  A secondary battery is attached to the power supply unit 65. The power supply unit 65 takes out power from the attached secondary battery and supplies it to each part of the mobile phone terminal 70 via a power supply line (not shown). The battery remaining amount detection unit 67 is connected to the power supply unit 65, detects the battery remaining amount of the secondary battery attached to the power supply unit 65 based on, for example, the output voltage value from the power supply unit 65, and operates the detection result. Tell the mode controller 49.

  The cellular phone terminal 70 having such a configuration is characterized by an operation in the usage time extension mode. Hereinafter, the operation of the mobile phone terminal 70 will be described in detail with reference to FIG.

  FIG. 3 is a flowchart schematically showing the transition of the operation mode in the mobile phone terminal 70. As shown in the figure, the cellular phone terminal 70 performs steps S1 to S8, steps S11 to S13, and steps S21 to S29 to shift between the three operation modes.

  In step S1, which is first performed when the power is turned on, the detected value of the remaining battery level by the remaining battery level detection unit 67 and the condition value stored in the storage unit 55 are used as the operation mode control unit 49 (see FIG. 2). ) And the operation mode control unit 49 determines whether or not the detected value is lower than the condition value. When it is determined that the detected value is lower than the condition value, the process proceeds to step S21 described later. When it is determined that the detected value is not lower than the condition value, the process proceeds to step S2, and the operation mode is changed to the use time extension mode. The operation mode control unit 49 determines whether it is designated or not. When it is determined in step S2 that the operation mode is designated as the usage time extension mode, the process proceeds to step S21 described later, and when it is determined that the operation mode is not designated as the usage time extension mode, the process proceeds to step S3.

  In step S3, the operation mode control unit 49 shifts the operation mode of the mobile phone terminal 70 to the normal mode. In subsequent step S4, the command processing unit 41 determines whether there is any command, for example, a command from the user or an operation start command from the first communication control unit 43 or the second communication control unit 45 to the incoming call notification unit 60. (See FIG. 2). When it is determined in step S4 that there is any command, the process proceeds to step S5, and the command processing unit 41 determines whether the command is an instruction to turn off the power.

  When it is determined in step S5 that the command is for instructing to turn off the power, the process proceeds to step S31, where the power is turned off to end the process. When it is determined that the command is not for instructing to turn off the power, the process proceeds to step S6. The command processing unit 41 determines whether or not the command is an instruction to shift to the usage time extension mode. When it is determined that the command is for instructing the shift to the usage time extension mode, the process proceeds to step S21 described later. When it is determined that the command is not for instructing the transition to the usage time extension mode, the process proceeds to step S7. After executing the command, the process returns to step S1 described above.

  When it is determined in step S4 that there is no command, the process proceeds to step S8, and the command processing unit 41 determines whether or not the elapsed time after shifting to the normal mode exceeds the reference time. At this time, information about the reference time serving as a determination criterion is stored in advance in the storage unit 55 (see FIG. 2) by the manufacturer of the mobile phone terminal 70, for example. If it is determined in step S8 that the reference time has not yet elapsed, the process returns to step S4. If it is determined that the reference time has elapsed, the process proceeds to step S11, where the operation mode control unit 49 of the mobile phone terminal 70 The operation mode is shifted to the power saving mode. In the power saving mode, under the control of the display control unit 47, the display screen of the auxiliary display unit 20 becomes darker than in the normal mode, and when the mobile phone terminal 70 is opened from the folded state, the main display unit 15 The display screen becomes darker than in normal mode.

  In step S12, which is performed following step S11, whether or not there is any command, for example, a command from the user or an operation start command from the first communication control unit 43 or the second communication control unit 45 to the incoming call notification unit 60, is processed. The unit 41 determines. When it is determined that there is no command, step S12 is repeated, and when it is determined that there is a command, the process returns to step S5 to repeat step S5 and subsequent steps. When the process returns to step S5, the operation mode of the mobile phone terminal 70 becomes the normal mode.

  On the other hand, when it is determined in step S1 that the remaining battery level detection value by the remaining battery level detection unit 67 is lower than the condition value, or in the above-described step S2, the operation mode is designated as the usage time extension mode. When it is determined, the process proceeds to step S21, and the operation mode control unit 49 shifts the operation mode of the mobile phone terminal 70 to the usage time extension mode. In the usage time extension mode, the auxiliary display unit 20 is basically in a non-display state under the control of the display control unit 47, and the main display unit 15 is not displayed even when the mobile phone terminal 70 is opened from the folded state. Display state. Further, when an illumination lamp is built in each key constituting the input unit 10, these illumination lamps are also kept in a non-lighted state under the control of the command processing unit 41.

  In step S22 performed subsequent to step S21, the command processing unit 41 determines whether or not there is any command, for example, a command from the user. When it is determined that there is no command, step S22 is repeated. When it is determined that there is a command, the process proceeds to step S23, where the command processing unit 41 determines whether the command is an instruction to turn off the power. To do.

  If it is determined in step S23 that there is an instruction to turn off the power, the process proceeds to step S31, the power is turned off to end the process, and it is determined that there is another instruction that is not an instruction to turn off the power. If YES in step S24, the flow advances to step S24, and the command processing unit 41 determines whether the command is a display command for instructing display of incoming information. When it is determined that the instruction is not a display instruction, the process proceeds to step S25, where the operation mode control unit 49 shifts the operation mode of the mobile phone terminal 70 to the power saving mode, and then proceeds to step S26 to execute the instruction. It returns to above-mentioned step S1.

  When the mode is shifted to the power saving mode in step S25, the auxiliary display unit 20 is kept in the non-display state under the control of the display control unit 47, while the main display is displayed when the cellular phone terminal 70 is opened from the folded state. The unit 15 is in a darker display state than in the normal mode. Further, when an illumination lamp is built in each key constituting the input unit 10, these illumination lamps are also kept in a lighting state under the control of the command processing unit 41.

  When it is determined in step S24 that the instruction is a display command, the process proceeds to step S27, where the display control unit 47 receives incoming information from the storage unit 55, that is, transmission source information or transmission for an incoming call that has occurred after the transition to the usage time extension mode. The original information is read out and displayed on the auxiliary display unit 29. When there is no incoming call, information indicating that is displayed on the auxiliary display unit 20, or without displaying any information on the auxiliary display unit 20, only the display screen of the auxiliary display unit 20 is brightened. In the usage time extension mode, for example, when the side key 5 (see FIG. 1 or FIG. 2) is pressed, it is handled that a display information display command has been input.

  Thereafter, the process proceeds to step S28, in which the display control unit 47 determines whether or not a predetermined period has elapsed since the display command was input. When it is determined that the predetermined period has not elapsed, step S28 is performed. Repeatedly, when it is determined that the predetermined period has elapsed, the process proceeds to step S29 to end the display of the incoming call information and then returns to step S22. The incoming information display period in step S28 may be a predetermined time, for example, or may be a period in which the display command input key (side key 5) is kept pressed. During the usage time extension mode, the auxiliary display unit 20 is in the display state only for the period described above.

  In the mobile phone terminal 70 that shifts between the three operation modes in this manner, during the usage time extension mode, even if there is an incoming call, the auxiliary display unit 20 is not displayed until the display command is issued, and there is no display command. In this case, the auxiliary display unit 20 is operated for the first time and the incoming call information is displayed. Therefore, if the operation mode is set to the usage time extension mode, the power required to notify the user of the incoming call can be reduced. As a result, the user can be notified of the presence or absence of an incoming call with low power consumption.

  For example, if the mobile phone terminal 70 is configured to automatically shift to the usage time extension mode when the remaining battery level detection result by the remaining battery level detection unit 67 (see FIG. 2) falls below 20%, Even when the user forgets to switch the mode to the usage time extension mode, if the remaining battery level falls below 20%, the mode is automatically shifted to the usage time extension mode. Of course, even when the remaining battery level is high, it is possible to shift to the usage time extension mode by a command from the side key 5, so that it is possible to save power regardless of the remaining battery level.

  Further, since the operation mode can be designated as the usage time extension mode by pressing the side key 5, it is easy to prevent an erroneous operation when the operation mode is designated. Since the mobile phone terminal 70 is a foldable type in which incoming information is displayed on the auxiliary display unit 20, it is easy for the user to check whether there is an incoming call even when it is still in a pocket or bag, and whether there is an incoming call. It is easy to reduce power consumption when notifying the user.

  The embodiments of the portable communication device of the present invention have been specifically described with reference to the examples. However, as described above, the present invention is not limited to the above embodiments. For example, the present invention is not limited to a mobile phone terminal, and has a function for transmitting and receiving information wirelessly, such as a function as a telephone terminal and a function for sending and receiving e-mails, and displays on the display section that an incoming call has been received. The present invention can be applied to various portable communication devices that can be used. When the mobile communication device is a mobile phone terminal, the mobile phone terminal is not limited to a foldable type, but a slide type in which the display unit slides, a rotary type in which the display unit rotates, a straight type in which the display unit is fixed, etc. Other methods may also be used.

  In addition, the portable communication device of the present invention has at least one of a function of automatically shifting to the usage time extension mode and a function of shifting to the usage time extension mode when the user operates the mode designation unit. Just do it. When adding a function to automatically shift to the usage time extension mode, the parameter that triggers the automatic transition to the usage time extension mode is not limited to the remaining battery level, but other parameters such as after charging It may be a usage time or the like.

  During the usage time extension mode, from the viewpoint of minimizing power consumption, it is preferable to stop the operation of the incoming call notification unit that informs the user that there is an incoming call by light, sound, or vibration. From the viewpoint of notifying the user of this fact, at least a part of the functions of the incoming call notification unit may be enabled.

  Furthermore, for incoming calls from senders or senders registered in advance in the storage unit, the incoming call information is automatically displayed on the display unit (auxiliary display unit) even during the usage time extension mode. You may comprise a portable communication apparatus so that at least one part function of an incoming call alerting | reporting part may become effective.

  Since the display unit is in a non-display state during the usage time extension mode, a message indicating that the usage time extension mode is in effect when a predetermined key (for example, a side key) is pressed so that the user does not misunderstand it. May be configured such that is displayed on the display unit. With respect to the present invention, various modifications, modifications, combinations, and the like other than those described above are possible.

(Supplementary note 1) A portable communication device having a plurality of operation modes with different power consumptions and capable of displaying predetermined incoming call information on a display unit when an incoming call is received,
The plurality of operation modes include a usage time extension mode,
During the usage time extension mode, the display unit is basically kept in a non-display state, and when there is a display command for instructing display of incoming call information, the display unit is operated only for a predetermined period to receive incoming call information. A portable communication device having a display control unit for displaying the above.

(Supplementary note 2) The portable communication device according to supplementary note 1, further comprising a mode designating unit that designates an operation mode as the usage time extension mode.

(Additional remark 3) The said mode designation | designated part contains the side key arrange | positioned at the side surface, The portable communication apparatus of Additional remark 2 characterized by the above-mentioned.

(Supplementary Note 4) A battery remaining amount detecting unit for detecting a remaining battery amount;
An operation mode control unit that automatically shifts the operation mode to the usage time extension mode when the detection result of the remaining battery level by the remaining battery level detection unit falls below a condition value;
The portable communication device according to any one of supplementary notes 1 to 3, further comprising:

(Supplementary Note 5) A foldable mobile phone terminal that has a main display section and an auxiliary display section disposed on the back side of the main display section and can be folded in two with the main display section inside. The portable communication device according to any one of appendices 1 to 4, wherein the incoming call information is displayed on the auxiliary display unit.

(Additional remark 6) It further has the incoming call alerting | reporting part which alert | reports that there was an incoming call by light, a sound, or a vibration, The said incoming call alerting | reporting part functions also during the said usage time extension mode, It is characterized by the above-mentioned. The portable communication apparatus as described in any one of -5.

(Appendix 7) A portable communication device having a plurality of operation modes with different power consumptions and capable of displaying predetermined incoming call information on a display unit when an incoming call is received,
The plurality of operation modes include a usage time extension mode,
During the use time extension mode, the display unit is basically kept in a non-display state, and when there is a display command for instructing display of incoming information, or an incoming call from a predetermined specific source or source A portable type having a display control unit that operates the display unit for a predetermined period of time when there is an incoming call, displays incoming call information, and keeps the display unit in a non-display state during other periods Communication equipment.

  As described above, the present invention is useful for reducing the power consumption of a portable communication device and extending its continuous use time.

It is a perspective view which shows roughly an example of the portable communication apparatus of this invention. FIG. 2 is a block diagram schematically showing the mobile phone terminal shown in FIG. 1. 3 is a flowchart schematically showing the transition of the operation mode in the mobile phone terminal shown in FIG. 1.

Explanation of symbols

5 Side key 15 Main display unit 20 Auxiliary display unit 47 Display control unit 49 Operation mode control unit 67 Remaining battery level detection unit 70 Mobile phone terminal (portable communication device)

Claims (5)

A portable communication device having a plurality of operation modes with different power consumption and capable of displaying predetermined incoming call information on a display unit when an incoming call is received,
The plurality of operation modes include a usage time extension mode,
During the usage time extension mode, the incoming information is displayed on the display unit only during a period in which a display command for instructing display of incoming information is received from the user, and for incoming calls from a specific source or a specific source. , portable communication devices that include a display control unit for the incoming information Ru is displayed on the display unit without accepting from the user a display command even during said use time extension mode.   The portable communication device according to claim 1, further comprising a mode designating unit that designates an operation mode as the usage time extension mode.   The portable communication device according to claim 2, wherein the mode designating unit includes a side key disposed on a side surface. A battery level detector for detecting the remaining battery level;
An operation mode control unit that automatically shifts the operation mode to the use time extension mode when the detection result of the remaining battery level by the remaining battery level detection unit falls below a condition value;
The portable communication device according to claim 1, further comprising:   A foldable mobile phone terminal having a main display unit and an auxiliary display unit arranged on the back side of the main display unit, the main display unit being inwardly folded, and the auxiliary display The mobile communication device according to claim 1, wherein the incoming call information is displayed on a part.

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