JP4565255B2 - Portable device - Google Patents

Description

  The present invention relates to a battery-powered portable device.

  In a battery-powered portable device such as a cellular phone, a warning called LVA (low battery alarm) is notified when the remaining battery capacity is low. LVA is a notification by display on a display unit such as a warning sound or “please charge”, for example. Then, after a certain period of time, the portable device is turned off to prevent malfunction or the like (hereinafter referred to as “battery exhaustion”). After the power is turned off, the portable device cannot normally be used. Hereinafter, notification of LVA may be described as occurrence of LVA.

  There has been proposed a portable information terminal device capable of preventing an opportunity to use a function with high priority from being missed due to a battery exhaustion (see, for example, Patent Document 1). Patent Document 1 describes that when the remaining capacity of the battery is equal to or less than the battery capacity necessary for using a predetermined function, the function is restricted.

  In addition, there has been proposed a mobile phone device that can report to an emergency destination with a simple operation even when the main power is turned off (see, for example, Patent Document 2). Patent Document 2 describes that when an emergency key is input, if the power is off, the power is turned on by a backup power source and automatic transmission is made to a number stored in advance.

  In addition, a portable terminal has been proposed that notifies a partner designated by the user that the battery is dead and communication is not possible before the power is turned off due to the battery being dead (see, for example, Patent Document 3). Japanese Patent Application Laid-Open No. 2004-228561 describes that notification is made to a predetermined e-mail address when the battery voltage becomes equal to or lower than a predetermined threshold value.

  Generally, a portable device cannot be used after the power is turned off. Even in this case, the battery potential is not zero, and there is some remaining capacity.

A battery-powered portable device such as a portable digital camera that can be used once or several times after normal use and can be used for emergency use has been proposed (for example, Patent Document 4). reference). Patent Document 4 describes that after a battery runs out, a function that consumes a large amount of current is restricted and operated.
JP 2005-292873 A (paragraphs 0071-0074) JP 09-65013 A (paragraph 0016) JP 2005-18200 A JP 2003-125541 A

  When the technology as described in Patent Documents 2 and 3 is applied to the portable information terminal device as described in Patent Document 1, when the remaining battery capacity falls below a predetermined threshold, the function is limited, and Thus, a notification can be sent to a predetermined partner. However, since the notification is made immediately when the remaining battery capacity falls below a predetermined threshold, the notification is made even in a situation not intended by the user. In addition, since the predetermined threshold value is higher than the voltage value of the minimum operable voltage of the mobile terminal, a threshold value other than the voltage value when the mobile device is turned off must be measured. You must add functionality. In addition, after the power is turned off, the portable device cannot be used.

  Further, in the method described in Patent Document 4, it is possible to operate in the restricted mode within the range of the changed lower limit voltage even after the battery is exhausted, that is, after the power is turned off. However, since a normal shooting operation is performed at the time of shooting, there is a possibility that the battery may be used up without being shot depending on the user operation. Also, the user cannot confirm that the operation has been completed.

Therefore, an object of the present invention is to provide a battery-powered portable device that can perform a predetermined process according to a user's request in a state where a battery has run out.

A portable device according to the invention, after a display unit, the potential of the batteries was Tsu name below a predetermined value, a power supply control means for supplying power to the operation detection means for detecting an operation on the key is predetermined, After the power supply control means is in a state of supplying power to the operation detection means , when the operation detection means detects an operation on the key , the electronic phone is sent to the partner who made the last call before the battery potential falls below a predetermined value. executing means for executing a process of transmitting the mail, and a notification control means for performing control to display on the display unit, information indicating that the execution unit has completed execution of the processing, the power control unit, the power control unit When the operation detection means detects an operation on the key after the operation detection means is in a state of supplying power, the execution means supplies power to the execution means, and the execution means indicates that the battery potential has become a predetermined value or less. Indicate A data data size is smaller than the data size of the mail sentences are determined Luo beforehand, and transmits the data associated with the mail text as an e-mail.

According to the present invention, there is an effect that a predetermined process can be performed according to a user's desire in a state where the battery has run out.

  First, an outline of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a minimum configuration example of a portable device according to the present invention. The portable device illustrated in FIG. 1 includes an operation detection unit 301, a power control unit 302, and an execution unit 303.

  The operation detection unit 301 detects a predetermined operation.

  The power supply control unit 302 supplies power only to the operation detection unit 301 after the battery potential becomes a predetermined value or less and the power-on operation by the user is prohibited.

  The execution unit 303 is driven by the remaining power of the battery and executes a predetermined process when the operation detection unit 301 detects a predetermined operation.

  With the configuration as shown in FIG. 1, even when the power is cut off due to battery exhaustion, predetermined processing can be performed according to the user's wishes.

Embodiment 1. FIG.
A first embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is an explanatory diagram illustrating the mobile device according to the first embodiment. Here, a mobile phone will be described as an example of the mobile device. FIG. 2A is a front view showing the mobile phone 5. FIG. 2B is a rear view. A cellular phone 5 shown in FIG. 2 includes a battery 2, a power key 10, a transmission key 30, and a display unit 104.

  The battery 2 is built in or attached to the mobile phone 5. The power key 10 is a key for turning on or off the power.

  The display unit 104 is realized by a display device such as a liquid crystal display device or an organic EL (Electroluminescence) display device, and displays information. In the first embodiment, the display unit 104 displays the completion of the startup operation after the battery runs out.

  FIG. 3 is an explanatory view showing the mobile phone (mobile device) 1 according to the first embodiment as in FIG. FIG. 3A is a front view showing the mobile phone 1. FIG. 3B is a rear view. The function activation key 20 is a key for activating a predetermined process after the battery runs out. As shown in FIG. 3, the function of the function activation key is assigned to the transmission key of the mobile phone 1.

  FIG. 4 is a block diagram illustrating a configuration example of the mobile phone 5 according to the first embodiment. 4, as components of the mobile phone 5, in addition to the transmission (emergency) key 30 shown in FIG. 2, the power supply IC 100, the main CPU 101, the wireless unit 102, the memory 103, and the display unit 104. And a backlight control IC 105 for the display unit.

  For example, when the potential of the battery 2 becomes equal to or lower than a predetermined threshold during a call with the partner mobile phone 6, the mobile phone 5 generates LVA and turns off the power after a certain time. In addition, the mobile phone 5 operates according to a program and executes predetermined processing after the battery runs out.

  The transmission key 30 corresponds to the function activation key 20 shown in FIG. 2 and operates as a key for activating a predetermined process after the battery runs out. When the transmission key 30 is pressed for a predetermined time by the user in a state where the power is cut off by the LVA, the transmission key long press signal 150 is output to the power supply IC 100. Hereinafter, pressing a key for a predetermined time may be referred to as long press.

  The power supply IC 100 supplies power to the main CPU 101 according to a predetermined operation by the user, and transmits a function activation request signal 200 for requesting activation of a predetermined function after the battery runs out. In the first embodiment, the power supply IC 100 has a key scan function that can detect pressing of the transmission key 30 and receives the transmission key long press signal 150 in a state where the power is cut off by the LVA. Power is supplied to the main CPU 101 and a function activation request signal 200 is transmitted.

  The main CPU 101 controls each part of the mobile phone 5. The main CPU 101 receives the power supply from the power supply IC 100 and the function activation request signal 200 and executes predetermined processing. In the first embodiment, the main CPU 101 activates the wireless unit 102 in response to power supply and reception of the function activation request signal 200, and transmits a mail to the mobile phone 6 that is the last party to call. Execute. The main CPU 101 activates the wireless unit 102 by transmitting a wireless unit reset release signal 202 to the wireless unit 102.

  Further, the main CPU 101 executes a process for notifying the user to that effect in response to completion of activation of a predetermined function after the battery runs out. In the first embodiment, the main CPU 101 executes notification control processing for causing the display unit 104 to display information indicating completion of mail transmission. For example, the main CPU 101 transmits a display request signal 208 for requesting display of mail transmission completion to the display unit 104, and a backlight lighting request signal 209 for requesting lighting of the backlight to the display unit backlight control IC 105. Send.

  The wireless unit 102 is activated in response to receiving the wireless unit reset release signal 202 from the main CPU 101. In addition, the wireless unit 102 transmits the mail information 203 received from the main CPU 101 to the counterpart mobile phone 6. When the transmission of the mail is completed, the wireless unit 102 transmits a transmission completion signal 205 indicating that the transmission is completed to the main CPU 101.

  For example, the memory 103 stores in advance a mail text indicating that the battery has run out. In addition, the memory 103 stores the mail address of the partner (the partner mobile phone 6) that made the last call before the battery runs out.

  In the first embodiment, when the display unit 104 receives the display request signal 208 from the main CPU 101, the display unit 104 displays information indicating that the transmission of mail has been completed.

  The display unit backlight control IC 105 controls the lighting of the backlight of the display unit 104. In the first embodiment, when receiving the backlight lighting request signal 209 from the main CPU 101, the display unit backlight control IC 105 performs control to turn on the backlight.

  Next, the operation of the first embodiment will be described with reference to FIG. 4 and FIG. FIG. 5 is a flowchart showing the operation of the mobile phone 5 in the first embodiment.

  For example, when the potential of the battery 2 becomes equal to or lower than a predetermined threshold during a call, the mobile phone 5 generates LVA and turns off the power after a predetermined time (step S1). Specifically, power supply to the operation unit including the main CPU 101, the power supply IC 100, and keys is cut off. Even if the main CPU 101 detects that the power key 10 has been pressed, the main CPU 101 ignores the pressing.

  The cellular phone 5 that has been powered off operates the key scan of the power supply IC 100 so that the depression of the transmission key 30 can be detected. The cellular phone 5 performs the same control as that when the power is turned off for the other blocks (step S2).

  Here, when the user notifies the other party's mobile phone 6 of the last call that the battery of the mobile phone 5 has run out, the user presses the transmission key 30 of the mobile phone 5 for a long time. Note that the method is not limited to long-pressing the transmission key 30 of the mobile phone 5 as long as it is difficult to be erroneously operated, and for example, other keys may be long-pressed.

  The power supply IC 100 determines whether or not the transmission key 30 has been pressed for a long time by key scanning (step S3). For example, when the power supply IC 100 receives the transmission key long press signal 150, the power supply IC 100 determines that the transmission key 30 has been pressed long. If it is determined that the send key 30 has been pressed long (Yes), the process proceeds to step S4. If it is determined that the send key 30 has not been pressed long (No), the process proceeds to step S2.

  In step S <b> 4, the mobile phone 5 executes a predetermined process in a state where the power is cut off due to the battery running out. The predetermined process executed after the battery runs out is a process that can operate within the range of the remaining battery capacity when the battery runs out. Hereinafter, as a predetermined process, a process of sending an email indicating that the battery has run out to the partner who was talking last will be described as an example. However, if the process is to be executed when the battery runs out, There may be.

  Hereinafter, the process of step S4 will be described with reference to FIG. FIG. 6 is a flowchart showing processing executed after the battery runs out.

  When determining that the send key 30 has been pressed for a long time, the power supply IC 100 supplies power to the main CPU 101. Further, the power supply IC 100 transmits a function activation request signal 200 for requesting activation of the function after the battery is exhausted to the main CPU 101 (step S4-1).

  The main CPU 101 receives the power supply from the power supply IC 100 and the function activation request signal 200, and executes processing for activating the wireless unit 102 (step S4-2). In step S 4-2, the main CPU 101 transmits a power supply request signal 201 for requesting power supply to the wireless unit 102 to the power supply IC 100. In addition, the main CPU 101 cancels the reset of the wireless unit 102, transmits a wireless unit reset release signal 202 that activates the wireless unit 102 to the wireless unit 102, and activates the wireless unit 102.

  Further, the main CPU 101 reads out from the memory 103 mail information 203 including a mail text stored in advance and information on the mail address of the partner who made the last call before the battery runs out. The main CPU 101 transmits the mail information 203 read from the memory 103 to the wireless unit 102 (step S4-3).

  The wireless unit 102 receives the mail information 203 and transmits the mail text 204 included in the mail information 203 to the counterpart mobile phone 6. When the transmission is completed, the wireless unit 102 transmits a transmission completion signal 205 indicating that the transmission is completed to the main CPU 101 (step S4-4).

  When the main CPU 101 receives the transmission completion signal 205, the main CPU 101 executes processing for stopping the wireless unit 102 (step S4-5). The main CPU 101 transmits a power supply stop request signal 206 for requesting to stop power supply to the wireless unit 102 to the power supply IC 100. Further, the main CPU 101 transmits a wireless unit reset signal 207 for stopping the wireless unit 102 to the wireless unit 102 to stop the wireless unit 102.

  Next, the process of step S5 will be described with reference to FIG. Step S5 is a process for notifying the user that the execution of the predetermined process (mail transmission) has been completed.

  The main CPU 101 transmits to the display unit 104 a display request signal 208 for requesting display of mail transmission completion. Further, the main CPU 101 transmits a backlight lighting request signal 209 for requesting lighting of the backlight to the backlight control IC 105 for display unit.

  When the display unit 104 receives the display request signal 208, the display unit 104 displays information indicating that the transmission of the mail has been completed. Further, when receiving the backlight lighting request signal 209, the backlight control IC for display unit 105 performs control to turn on the backlight. The cellular phone 5 ends the series of processes with the process of step S5.

  As described above, the cellular phone 5 performs mail transmission in step S4, and displays a transmission completion display in step S5. If the mail transmission and the transmission completion display on the display unit 104 are performed at the same time, the power consumption may increase and a voltage drop may occur, and the operating voltage may be divided during the mail transmission process, making it impossible to send the mail. . For this reason, it is desirable to perform a display operation after a series of mail transmission operations are completed.

  Further, during the above-described operation, the main CPU 101 does not activate unnecessary blocks at all in order to effectively use the battery capacity after LVA.

  As described above, according to the first embodiment, even when a battery-running portable device that cannot normally be used is used, a predetermined function is activated once or a plurality of times to confirm that the processing is completed. be able to. In addition, a small battery capacity after LVA can be used effectively.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a block diagram illustrating a configuration example of the mobile phone 5 according to the second embodiment. 7 includes a transmission (emergency) key 30, a power supply IC 100, a main CPU 101, a wireless unit 102, a memory 103, a display unit 104, a display unit backlight control IC 105, and a GPS 106. With.

  In the second embodiment, the mobile phone 5 includes a GPS 106 that is not provided in the first embodiment. In the second embodiment, the cellular phone 5 transmits a mail including position information as a predetermined process executed after the battery runs out.

  The GPS 106 measures the position of the mobile phone 5 at predetermined time intervals based on radio waves from GPS satellites (automatic acquisition mode). For example, the main CPU 101 stores position information 210 indicating the position measured by the GPS 106 in the memory 103. The memory 103 stores the position information 210, for example, along with data indicating the time when the position is measured in time series.

  Since the other configuration of the mobile phone 5 is the same as the configuration in the first embodiment (see FIG. 4), the description thereof is omitted.

  Next, the operation of the second embodiment will be described with reference to FIG. 5, FIG. 6, and FIG. Hereinafter, an operation different from the operation of the first embodiment will be described.

  The GPS 106 measures the position of the mobile phone 5 at predetermined time intervals before the mobile phone 5 runs out of battery, and stores the position information 210 indicating the measured position in the memory 103. When the potential of the battery 2 becomes equal to or lower than the predetermined threshold, the mobile phone 5 executes the processes of steps S1 to S3 shown in FIG. 5 and the processes of steps S4-1 and S4-2 shown in FIG.

  In step S <b> 4-3, when reading the mail information 203 from the memory 103, the main CPU 101 reads the latest position information 211 from the memory 103 among the position information 210 indicating the position measured by the GPS 106. The main CPU 101 transmits the mail information 203 read from the memory 103 and the latest position information 211 to the wireless unit 102.

  In step S <b> 4-4, the wireless unit 102 receives the mail information 203 and the latest position information 211, and transmits the mail text 204 included in the mail information 203 and the latest position information 211 to the counterpart mobile phone 6. . When the transmission is completed, the wireless unit 102 transmits a transmission completion signal 205 indicating that the transmission is completed to the main CPU 101. Subsequent operations are the same as those in the first embodiment.

  In step S4-3, it is desirable that the main CPU 101 transmits the mail including the position information only when the GPS 106 is in the automatic acquisition mode in which the position information is periodically stored in the memory 103. In the manual acquisition mode in which the position information is acquired according to a user operation, even the latest position information 211 stored in the memory 103 may be significantly different from the actual position of the mobile phone 5. Therefore, in the manual acquisition mode or when a predetermined time has elapsed from the time when the position is measured, the mail is transmitted without attaching the position information.

  As described above, according to the second embodiment, an email including the latest position information can be transmitted when the battery is dead. Therefore, for example, even when the mobile phone 5 is disconnected, the location where the battery of the mobile phone 5 has run out can be specified, and useful information can be provided to the mobile phone of the other party.

Embodiment 3. FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a block diagram illustrating a configuration example of the mobile phone 5 according to the third embodiment. The mobile phone 5 shown in FIG. 8 includes a transmission (emergency) key 30, a power supply IC 100, a main CPU 101, a wireless unit 102, a memory 103, and an incoming LED control IC 107.

  In the third embodiment, the mobile phone 5 includes an incoming LED control IC 107 instead of the display unit 104 and the display unit backlight control IC 105 of the first embodiment. In the third embodiment, in order to further reduce the power consumption, when notifying that the execution of the predetermined processing after the battery has run out is completed, for example, an incoming LED that consumes less power than the display unit 104 is turned on. .

  The incoming LED control IC 107 controls lighting of an incoming LED (not shown). When the incoming LED control IC 107 receives an incoming LED lighting request signal 212 for requesting lighting of the incoming LED from the main CPU 101, the incoming LED control IC 107 performs control to turn on the incoming LED. The incoming LED is a display means that consumes less power than the display unit 104.

  Since the other configuration of the mobile phone 5 is the same as the configuration in the first embodiment (see FIG. 4), the description thereof is omitted.

  Next, the operation of the third embodiment will be described with reference to FIGS. Since the processing from step S1 to step S4 is similar to the processing in the first embodiment, the description thereof is omitted.

  In step S <b> 5, the main CPU 101 transmits an incoming LED lighting request signal 212 to the incoming LED control IC 107 in order to notify the user of completion of mail transmission.

  When the incoming LED control IC 107 receives the incoming LED lighting request signal 212 from the main CPU 101, the incoming LED control IC 107 performs control to turn on the incoming LED. The incoming LED control IC 107 notifies the user that the transmission of mail has been completed, for example, by continuously lighting blue for a predetermined time. Note that the color and lighting time of the incoming LED may be any color and time so that it can be seen that notification has been given.

  According to the third embodiment, when the current consumption of the display unit and the backlight for the display unit cannot be neglected, the power consumption can be further reduced. The third embodiment is also effective in a portable device that does not have a display unit.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. In the fourth embodiment, the mobile phone 5 transmits a mail including a message that can be converted by the receiving side as a predetermined process executed after the battery runs out. The configuration and operation of the mobile phone 5 of the fourth embodiment are the same as the configuration (see FIG. 4) and operation (see FIG. 5) of the first embodiment.

  In the fourth embodiment, the memory 103 stores in advance a message that can be converted by the receiving side as a mail text. For example, the memory 103 stores “# 1” as data corresponding to the mail text “Cannot make a call because the battery has run out”. The wireless unit 102 transmits “# 1” as a mail text to the counterpart mobile phone 6.

  The destination mobile phone 6 that has received the mail converts the mail text “# 1” according to a predetermined rule. For example, the destination mobile phone 6 automatically converts the mail text “# 1” to “cannot call because the battery has run out”.

  According to the fourth embodiment, since the amount of information to be transmitted is reduced, the transmission time is shortened, and the power consumption for transmission can be reduced.

Embodiment 5. FIG.
Next, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 9 is an explanatory diagram illustrating a configuration example of the mobile phone 5 according to the fifth embodiment. FIG. 9A is a front view illustrating a configuration example of the mobile phone 5. FIG. 9B is a rear view showing a configuration example of the mobile phone 5. The cellular phone 5 includes a battery 2, a power key 10, a transmission key 30, a numeric keypad 40, and a display unit 104.

  FIG. 10 is a block diagram illustrating a configuration example of the mobile phone 5 according to the fifth embodiment. The cellular phone 5 shown in FIG. 10 includes a transmission (emergency) key 30, a numeric keypad 40, a power supply IC 100, a main CPU 101, a wireless unit 102, a memory 103, a display unit 104, and a display unit backlight control. IC105.

  In the first to fourth embodiments, the mail transmission function is assigned only to the transmission key 30. Therefore, it is not possible to send an email with a different text. In the fifth embodiment, several types of mail can be transmitted by assigning different mail texts to the numeric keypad 40.

  The numeric keypad 40 operates as a key for transmitting different e-mail texts after the battery is exhausted. The numeric keypad 40 outputs a numeric keypad long press signal 160 to the power supply IC 100 when pressed by the user for a predetermined time in a state where the power is cut off by the LVA. The ten key long press signal 160 includes information indicating the key number of the pressed ten key 40.

  The power supply IC 100 has a key scan function capable of detecting the pressing of the numeric keypad 40, and when the tenkey 40 long press signal 160 is received in a state where the power supply is cut off by the LVA, a power supply to the main CPU 101 and a function activation request The signal 200 is transmitted. In the fifth embodiment, the function activation request signal 200 includes information indicating the pressed key number.

  The main CPU 101 activates the wireless unit 102 in response to power supply and reception of the function activation request signal 200. Further, the main CPU 101 reads, as a mail text, a mail text corresponding to the key number of the pressed ten key 40 from the memory 103 and transmits the mail information 203 to the wireless unit 102.

  For example, the memory 103 stores a mail text in association with information indicating the key number of the numeric keypad 40.

  Also, when there are several types of mail that can be sent, it may be possible to forget which message is assigned to which key. In the fifth embodiment, when the transmission key 30 is pressed for a long time, a correspondence table between key numbers and message contents may be displayed on the display unit 104 before mail transmission. Thereafter, when the numeric keypad 40 corresponding to the message to be transmitted is pressed, the mobile phone 5 transmits a message corresponding to the pressed number. It should be noted that the time for displaying the correspondence table needs to be a certain time because the remaining battery level after LVA is small.

  Next, the operation of the fifth embodiment will be described with reference to FIGS. FIG. 11 is a flowchart showing the operation of the mobile phone 5 in the fifth embodiment. Note that the processing from step S1 to step S3 and step S5 in FIG. 11 is the same as the processing in the first embodiment, and a description thereof will be omitted. Hereinafter, a case where it is determined in step S3 that the transmission key 30 has been pressed for a long time (Yes) will be described.

  In step S <b> 14, the mobile phone 5 executes processing for displaying a correspondence table between key numbers and message contents. Hereinafter, the process of step S14 will be described with reference to FIG. FIG. 12 is a flowchart showing processing for displaying a correspondence table between key numbers and message contents.

  The power supply IC 100 supplies power to the main CPU 101. Further, the power supply IC 100 transmits a function activation request signal 200 for requesting activation of the function after the battery is exhausted to the main CPU 101 (step S14-1).

  The main CPU 101 receives the power supply from the power supply IC 100 and the function activation request signal 200, and executes a process for displaying a correspondence table between the key numbers and the message contents (step S14-2). In step S <b> 14-2, the main CPU 101 transmits a correspondence table display signal 213 including correspondence table data to the display unit 104, for example. Further, the main CPU 101 transmits a backlight lighting request signal 209 to the display unit backlight control IC 105.

  When receiving the correspondence table display signal 213, the display unit 104 displays the message content (correspondence table) corresponding to the key number of the numeric keypad. Further, when receiving the backlight lighting request signal 209, the display backlight control IC 105 performs control to turn on the backlight (step S14-3).

  The main CPU 101 starts counting with an internal timer (not shown), and executes processing for stopping the display of the correspondence table when a predetermined time has elapsed (step S14-4). For example, when the display time is set to 10 seconds, the main CPU 101 transmits a display stop signal 214 for stopping the display to the display unit 104 after 10 seconds from the start of counting. Further, the main CPU 101 transmits a backlight extinguishing signal 215 for stopping lighting of the backlight to the display unit backlight control IC 105. The display time is stored in advance in the memory 103, for example.

  When receiving the display stop signal 214, the display unit 104 stops the display. Further, when receiving the backlight extinction signal 215, the display unit backlight control IC 105 performs control to stop the lighting of the backlight (step S14-5).

  Next, description will be made with reference to FIG. Since the correspondence table is displayed, the number corresponding to the message to be transmitted is known, so the user long presses the numeric keypad 40 corresponding to the message to be transmitted. The power supply IC 100 determines whether or not the numeric keypad 40 has been pressed for a long time by key scanning (step S23). For example, when the power IC 100 receives a ten-key long press signal 160, the power IC 100 determines that the ten key 40 has been pressed long.

  If it is determined that the numeric keypad 40 has been pressed for a long time (Yes), the mobile phone 5 transmits an email corresponding to the pressed key (step S24). Specifically, the main CPU 101 reads out a mail text corresponding to the key number of the pressed numeric keypad 40 from the memory 103 as a mail text, and the wireless unit 102 transmits the mail text to the counterpart mobile phone 6. When the transmission is completed, the main CPU 101 executes processing for stopping the wireless unit 102.

  Finally, the cellular phone 5 performs the process of step S5 and ends the series of processes.

  As described above, according to the fifth embodiment, it is possible to display a correspondence table between key numbers and message contents, and to send a mail with contents corresponding to the pressed key.

Embodiment 6. FIG.
Next, a sixth embodiment of the present invention will be described. In the fifth embodiment, different messages are assigned to the numeric keypad 40, but different functions may be assigned to the numeric keypad 40.

  Among the mobile devices 1, there are devices having many functions such as the mobile phone 5. If it is multi-functional, for example, there is a high possibility that which function is desired to be used after the battery has run out varies depending on the user. By assigning different functions to the numeric keypad 40, various functions such as browsing the telephone directory and playing back an answering message can be activated even after the battery is exhausted, so that versatility can be improved.

  The numeric keypad 40 operates as a key for starting different functions after the battery is exhausted. The numeric keypad 40 outputs a numeric keypad long press signal 160 to the power supply IC 100 when pressed by the user for a predetermined time in a state where the power is cut off by the LVA. The ten key long press signal 160 includes information indicating the key number of the pressed ten key 40.

  When the main CPU 101 receives the power supply and function activation request signal 200, the main CPU 101 executes processing corresponding to the key number of the pressed ten key 40.

  The memory 103 stores a program indicating processing corresponding to information indicating the key number of the numeric keypad 40, for example. For example, the main CPU 101 executes a program corresponding to the key number of the pressed numeric keypad 40.

  It should be noted that, even for activation of functions other than mail transmission, since a small battery capacity after LVA is used, it is necessary to save power by limiting the display time.

  According to the sixth embodiment, a function corresponding to the pressed key can be executed.

Embodiment 7. FIG.
Next, a seventh embodiment of the present invention will be described with reference to the drawings. FIG. 13 is a block diagram illustrating a configuration example of the mobile phone 5 according to the seventh embodiment. The mobile phone 5 shown in FIG. 13 includes a numeric keypad 40, a power supply IC 100, a main CPU 101, a wireless unit 102, a memory 103, a display unit 104, and a display unit backlight control IC 105.

  In the first to fifth embodiments, mail is transmitted to the party that made the call last, but the party that made the call last is not necessarily the party who wants to send the mail after the battery runs out. In the seventh embodiment, the mail destination can be freely selected using the numeric keypad 40.

  Using the numeric keypad 40 of the mobile phone 5 whose battery has run out, the user presses and holds down the numeric keypad 40 corresponding to the line including the first character of the name of the party to whom the mail is to be transmitted. For example, when it is desired to use a partner whose first character is included in “Ka Line” as a transmission destination, the numeric keypad number 2 is pressed and held. When the number 2 numeric keypad 40 is pressed for a long time, the cellular phone 5 displays the phone book of the line. The mobile phone 5 transmits an e-mail to a destination corresponding to the number pressed during display of the phone book.

  In addition, when transmitting the first one character to the partner who registered with the alphanumeric character, the key assigned as the numeric keypad corresponding to the alphanumeric character is long pressed. For example, when a # key or * key is assigned as a numeric keypad corresponding to alphanumeric characters, an alphanumeric telephone directory is displayed by long pressing the # key or * key.

  Next, the operation of the seventh embodiment will be described with reference to FIGS. FIG. 14 is a flowchart showing the operation of the mobile phone 5 in the seventh embodiment. Note that the processing in step S1 and step S5 in FIG.

  The cellular phone 5 that has been powered off operates the key scan of the power supply IC 100 so that the depression of the numeric keypad 40 can be detected. The cellular phone 5 performs the same control as that when the power is turned off for the other blocks (step S32).

  For example, when the user wishes to send an email indicating that the battery has run out to Mr. Sato, since the first character is included in “Sa line”, the user presses and holds down the number 3 key of the numeric keypad 40. When the number 2 numeric keypad 40 is pressed for a long time, the numeric keypad 40 transmits a 3 key long press signal 170 to the power supply IC 100. The power supply IC 100 receives the 3 key long press signal 170 by the key scan, and determines that the key of number 3 has been pressed long (step S33).

  In step S <b> 34, the mobile phone 5 executes a process of displaying the current phone book. Hereinafter, the process of step S34 will be described.

  The power supply IC 100 supplies power to the main CPU 101. The power supply IC 100 also transmits to the main CPU 101 a function activation request signal 200 that requests activation of a function after the battery has run out.

  The main CPU 101 receives the power supply from the power supply IC 100 and the function activation request signal 200 and executes a process for displaying a telephone directory. The main CPU 101 transmits, for example, a phone book display signal 216 including the current phone book data to the display unit 104. Further, the main CPU 101 transmits a backlight lighting request signal 209 to the display unit backlight control IC 105. The main CPU 101 waits for selection of a transmission partner.

  Upon receiving the phone book display signal 216, the display unit 104 displays the current phone book. Further, when receiving the backlight lighting request signal 209, the backlight control IC for display unit 105 performs control to turn on the backlight.

  The user who confirmed the telephone book in the row presses the numeric keypad 40 of the number (for example, 2) associated with the other party (Mr. Sato) who wants to transmit. When the number 2 numeric keypad 40 is pressed, the numeric keypad 40 transmits a transmission destination selection key 180 to the power supply IC 100. The power supply IC 100 receives the transmission destination selection key 180 by the key scan, and determines that the number 2 key has been pressed (step S43).

  The mobile phone 5 transmits an email in which a destination corresponding to the pressed key is set (step S44). Specifically, the power supply IC 100 transmits a number selection signal 217 indicating that the number 2 key has been pressed to the main CPU 101. The main CPU 101 receives the number selection signal 217 and recognizes that Mr. Sato in the second row is the transmission destination. The main CPU 101 reads the mail information 218 including the mail text stored in advance and the information of Mr. Sato's mail address from the memory 103, and transmits the mail information 218 to the wireless unit 102. The wireless unit 102 receives and transmits the mail information 218 addressed to Mr. Sato. When the transmission is completed, the main CPU 101 executes processing for stopping the wireless unit 102. Since the process for stopping the wireless unit 102 is the same as the process of step S4-5 (see FIG. 6), the description thereof is omitted.

  Finally, the cellular phone 5 performs the process of step S5 and ends the series of processes.

  As described above, according to the seventh embodiment, a telephone directory can be displayed and mail can be transmitted to a selected destination.

Embodiment 8. FIG.
Next, an eighth embodiment of the present invention will be described. In the first embodiment, the mobile phone 5 has been described as an example of the mobile device 1, but a disaster prevention wireless device that is a mobile device used in a disaster may be used. If the battery of the radio for disaster prevention runs out and disconnects from the control station, not only can not be reported, but also the safety cannot be confirmed.

  According to the present invention, it is possible to transmit to the control station that the cause of the disconnection of the disaster prevention radio is due to the battery running out. Therefore, since the control station can confirm the cause of the disconnection and can also confirm the safety, the present invention can be used more effectively. In addition, when the portable device 1 is a portable device having an absolute transmission partner such as a disaster prevention radio, the transmission partner can be fixed, so that the present invention is more convenient for the user.

  In the embodiment described above, a portable device having a characteristic configuration as shown in the following (1) to (12) is shown.

  (1) A portable device that is driven by battery power, and includes an operation detection unit that detects a predetermined operation (for example, realized by the operation detection unit 301 and the power supply IC 100), and the potential of the battery is below a predetermined value. After the power-on operation by the user is prohibited, a power supply control means (for example, realized by the power supply control means 302 and the power supply IC 100) that supplies power only to the operation detection means, and the operation detection means A mobile phone comprising: execution means (for example, realized by the execution means 303, the main CPU 101, and the wireless unit 102) that is driven by the remaining power of the battery and executes predetermined processing when an operation is detected machine.

  (2) The power supply control means is a portable device that supplies power only to the execution means when the operation detection means detects a predetermined operation after the power-on operation by the user is prohibited. The portable device configured as described above can reduce power consumption after the power-on operation is prohibited.

  (3) A mobile phone provided with notification control means (for example, realized by the main CPU 101, the display unit 104, and the display backlight control IC 105) that performs control for notifying that the execution unit has completed execution of the predetermined process. machine. The portable device configured as described above can reduce power consumption after the power-on operation is prohibited.

  (4) The portable device includes a plurality of display units with different power consumptions, and the notification control unit performs control for causing the display unit with low power consumption to notify the completion of execution of the predetermined process. The portable device configured as described above can further reduce power consumption after power supply is stopped.

  (5) The portable device transmits an e-mail including a predetermined text set with a predetermined destination as the predetermined process. The mobile device configured as described above can transmit an e-mail indicating that the battery has run out.

  (6) A GPS unit (for example, realized by the GPS 106) that detects the presence position of the own device by the GPS function is provided, and the execution unit includes position information indicating the presence position detected by the GPS unit as a predetermined process. A mobile device that sends email. The mobile device configured as described above can transmit information indicating the position where the battery has run out.

  (7) A portable device that transmits data that corresponds to the text of the email and has data size smaller than the data indicating the text of the email and that can be converted by the receiving side as email. The portable device configured as described above can further reduce power consumption after power supply is stopped.

  (8) The execution unit is a portable device that executes different processing according to the operation detected by the operation detection unit. The mobile device configured as described above can execute processing according to the user's desire.

  (9) The portable device transmits an email with a different text according to the operation detected by the operation detection unit. The mobile device configured as described above can transmit an email as desired.

  (10) The mobile device transmits an e-mail in which a different destination is set according to the operation detected by the operation detection unit. The mobile device configured as described above can send an e-mail to a destination as desired.

  (11) The portable device is a portable device that is a disaster prevention radio.

  The present invention can be effectively applied to battery-powered portable devices.

It is a block diagram which shows the minimum structural example of the portable apparatus by this invention. It is explanatory drawing which shows the structural example of the portable apparatus of 1st Embodiment. It is explanatory drawing which shows the structural example of the mobile telephone of 1st Embodiment. It is a block diagram which shows the structural example of the mobile telephone of 1st Embodiment. 3 is a flowchart illustrating an operation of the mobile phone according to the first embodiment. It is a flowchart which shows the process performed after a battery runs out. It is a block diagram which shows the structural example of the mobile telephone of 2nd Embodiment. It is a block diagram which shows the structural example of the mobile telephone of 3rd Embodiment. It is explanatory drawing which shows the structural example of the mobile telephone of 5th Embodiment. It is a block diagram which shows the structural example of the mobile telephone of 5th Embodiment. 10 is a flowchart illustrating an operation of a mobile phone according to a fifth embodiment. It is a flowchart which shows the process which displays the correspondence table of a key number and message content. It is a block diagram which shows the structural example of the mobile telephone of 7th Embodiment. 14 is a flowchart illustrating an operation of the mobile phone according to the seventh embodiment.

Explanation of symbols

301 Operation detection means 302 Power supply control means 303 Execution means

Claims (2)

A portable device including a display unit and driven by battery power,
After the potential of the batteries was Tsu name below a predetermined value, a power supply control means for supplying power to the operation detection means for detecting an operation on the key is predetermined,
After the power supply control unit enters a state of supplying power to the operation detection unit, when the operation detection unit detects an operation on the key , the last call is made before the battery potential falls below a predetermined value. Execution means for executing processing for sending an e-mail to the other party ;
Notification control means for performing control to display information indicating that the execution means has completed execution of the process on the display unit ;
The power supply control means supplies power to the execution means when the operation detection means detects an operation on the key after the power supply control means enters a state of supplying power to the operation detection means.
The execution means is data having a data size smaller than a data size of a predetermined mail text indicating that the battery potential has become a predetermined value or less, and the data associated with the mail text is electronically stored. A portable device characterized by being sent as an email . The portable device according to claim 1, wherein the portable device is a disaster prevention radio.

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