JP5051521B2 - Mobile phone, emergency operation method and program when battery of battery is exhausted - Google Patents

Description

  The present invention relates to a mobile phone that turns off the apparatus power and stops all functions when the battery is consumed. In particular, the present invention relates to a mobile phone that can ensure use in an emergency before all functions are stopped, and an emergency operation method and program when the battery of the mobile phone is exhausted.

FIG. 6 is a flowchart for explaining an operation example after a low voltage alarm of the battery of the mobile phone which is a premise of the present invention. As shown in the figure, in step S101 , the mobile phone waits for a low voltage alarm to occur as the voltage drops as the battery (battery) is consumed.
In step S102 , if a battery low voltage alarm is generated, the apparatus power OFF timer is started.

In step S103 , the system waits for the apparatus power OFF timer to expire.
In step S 104, if the timer unit power OFF becomes time-over is the device power OFF, stops all functions of the mobile telephone, the process ends.
After switching to the device power OFF state due to battery exhaustion, it is basically impossible to operate all functions unless the battery voltage recovers by charging again or replacing the battery. However, there is a problem that it is inconvenient when there is no charging environment or replacement battery.

In particular, a mobile phone is carried without being separated from the skin, and is highly expected as a tool that can be used in an emergency. The following conventional techniques are available for the above inconvenience.
Conventionally, in order to provide a mobile phone with improved usability after a battery voltage drop, a desired function is selected by key operation in a state where a telephone function that can be used after the battery voltage drop is displayed on the display unit. In some cases, the telephone can operate with the selected function (for example, see Patent Document 1).

  However, in the above-mentioned Patent Document 1, the telephone can operate with the selected function after the battery voltage is lowered. However, since the telephone function is displayed on the display unit, the display power is consumed and the power is turned on again after the battery voltage is lowered. If it can be activated by an ON operation, it may be used as it is, and even if it is limited in function, if the visual usable state continues, the user will eventually use it until it uses up the battery, and it cannot be used in an emergency There is a problem. Furthermore, when the user unconsciously turns on the power again even after the battery voltage drops, there is a problem that power is consumed even in the startup process.

  Also, conventionally, when a mobile phone leaves its remaining battery power and turns itself off, and when the user turns on the power again, it can perform minimum communication, and the user appropriately determines whether or not to leave the remaining battery power. In order to provide a power supply control device that can be selected, a first voltage detecting means for detecting a first voltage in a low voltage state at a level at which the operation of the mobile phone cannot be continued, and a second voltage higher than the first voltage A second voltage detecting means for detecting the voltage of the power supply, a power supply control means for turning off the power of the mobile phone when the first voltage or the second voltage is detected, and turning off the power supply with remaining power remaining A surplus power detection mode setting means capable of setting whether or not to perform the operation, and the user appropriately selects whether or not to set the surplus power detection mode in preparation for the next use of the remaining battery power. Improve usability Has a power control device capable of bets (e.g., see Patent Document 2).

  However, in the above-mentioned Patent Document 2, when the power is turned off with the remaining power turned off and turned on again, it operates in a special mode that can operate with the remaining power, but it can be activated by turning on the power again after a battery voltage drop. If the battery is used as it is even if it is limited in function, the user can use the battery until the battery is used up, and cannot be used in an emergency. Furthermore, when the user unconsciously turns on the power again even after the battery voltage drops, there is a problem that power is consumed even in the startup process.

  Conventionally, in order to provide a mobile phone having a configuration that enables position search even after shutdown due to low voltage detection, in a mobile phone, a special power supply is started after the mobile phone is shut down due to a decrease in battery voltage. An input unit that can be started, a distress signal generation unit that generates a distress signal when the special power supply start-up is started by the input unit, and transmission of a transmission signal other than the distress signal. A transmission unit that transmits a transmission wave through a path different from the path, and the transmission unit includes a frequency conversion unit that converts the frequency of the distress signal into a low frequency signal. There is one that transmits as the transmission wave through the path (see, for example, Patent Document 3).

However, in Patent Document 3, the special power supply start-up is started even after the shutdown due to the low voltage detection, and the low frequency signal whose current consumption is not severe is transmitted as the transmission wave. However, the function is limited to these functions. After shutdown due to detection, it cannot be applied to other functions.
Conventionally, in order to improve the convenience for the user and reliably maintain necessary functions even at a low voltage, when the control unit receives a low voltage detection signal from the low voltage detection unit, the control unit displays a display on the main display unit. A request signal is sent to display a warning message indicating a low voltage state and a selection operation screen for selecting the transition to the low voltage mode, and then the control unit restricts the power supply destination and supply amount. Investigate whether there is a request for switching to the low voltage mode in order to effectively use the remaining capacity of the battery for the operation of the necessary part, that is, if the operation unit selects the transition to the low voltage mode, the power off timer In some cases, control is performed to stop counting, shift to the low voltage mode, and limit the supply destination and supply amount of power (see, for example, Patent Document 4).

  However, in Patent Document 4 described above, a low voltage alarm is generated and a trigger for shifting to the low voltage mode is provided before the apparatus power is turned off to extend the minimum function use time in the low voltage mode. If it can be started up by turning on the power again after the battery voltage drops, it may be used as it is, and even if it is limited in function, if the appearance is still usable, the user will eventually use it until the battery is used up. There is a problem that it cannot be used in an emergency. Furthermore, when the user unconsciously turns on the power again even after the battery voltage drops, there is a problem that power is consumed even in the startup process.

  Conventionally, in order to provide a mobile communication terminal capable of referring to a telephone book and performing an emergency call by a user operation when a battery voltage is lower than a predetermined voltage and a telephone book function and an emergency call are required, a wireless unit, a display A mobile communication terminal including a hardware component such as a communication unit, a transmission / reception unit, a power supply unit that supplies power to the hardware component, and a battery voltage monitoring unit that monitors the battery voltage. Key input for instructing the activation of the phone book function and key input for instructing an emergency call when power supply to the hardware components related to the provision of functions such as communication functions and additional functions is turned off to stop the function. There is also a mobile communication terminal including a control unit that turns on power supply to hardware components related to a telephone directory function and an emergency call function in response to ( In example, see Patent Document 5).

  However, in Patent Document 5 described above, power is supplied only to the phone book function and emergency call when necessary when the battery voltage becomes a predetermined voltage or lower. However, the phone book function is displayed and the display power is displayed. If the phone book function can be activated after the battery voltage drops, the phone book function may be used as it is, and even if the function is limited to the phone book function, it remains visible. After all, the user uses the battery until it is used up, and there is a problem that it cannot be used for an emergency call. Furthermore, when the user unconsciously turns on the power again even after the battery voltage drops, there is a problem that power is consumed even in the startup process.

JP 2000-354107 A JP 2004-015633 A JP 2004-078355 A JP 2005-295022 A JP 2005-303790 A

  Therefore, in view of the above problems, an object of the present invention is to provide a mobile phone that can ensure emergency use when the battery is exhausted, an emergency operation method when the battery of the mobile phone is exhausted, and a program.

In order to solve the above problems, the present invention provides a mobile phone that turns off the device power supply when the battery is consumed and stops the power supply from the battery. The battery voltage detection unit for detecting the voltage of the mobile phone, the specific telephone call of the mobile phone, the specific mail transmission, the camera light lighting, the LCD backlight lighting, the alarm sound, the LED blinking, the final position information mail by GPS Operate each function of a limited function including at least one transmission function, specific destination telephone transmission, specific destination mail transmission, LCD backlight lighting, alarm sound, LED blinking, and final location information mail transmission by GPS Less information on mobile phone keys “E1”, “E2”, “E3”, “E4”, “E5”, “E6”, “E7” Saving a limited function information holding unit which performs saving in pairs specific key operation, when it is detected the voltage of the pseudo device power OFF state by the voltage detection unit of the battery, the power supply from the battery Kutomo containing one Pseudo power OFF state that enables execution of the limited function held in the limited function information holding unit without switching to the power state, displaying the limited function on the display unit, and not turning on the backlight when there is no request When the mobile phone is set in the pseudo power OFF state by the pseudo device power OFF state control unit and the pseudo device power OFF state control unit, the limited function information for the operation of a specific key of the mobile phone A mobile phone comprising: a limited function control unit that extracts a limited function corresponding to the operation of the specific key from the holding unit and executes the extracted limited function That.

Furthermore, the pseudo device power OFF state controller, JP Teisaki telephone call, and the radio transmitting and receiving unit to which power is supplied in performing the respective functions of a particular destination mail submission, camera light lighting, LCD When at least one of the functions of backlight lighting, alarm sounding, and LED blinking is executed, the power supply is stopped.
Further, when the mobile phone is in the pseudo power OFF state and the limited function is not executed, the battery voltage detection unit, the limited function information holding unit, the pseudo device power OFF state control unit, the limited function control The power supply from the battery is stopped for parts other than the part function and the part for operating the function for operating the specific key.

Et al is, the specific key is a combination of letters and numeric keys.

In the emergency operation method when the battery of the mobile phone is exhausted, the power supply from the battery is turned off when the battery is depleted, and the voltage of the pseudo device power off state that is higher than the voltage of the device power off state is detected. And at least one function of sending a specific destination telephone of the mobile phone, transmitting a specific destination mail, turning on a camera light, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS. The key “E1” of the cellular phone for operating the limited function and the functions of calling the specified destination phone, sending the specified destination mail, turning on the LCD backlight, sounding the alarm, blinking the LED, and sending the final location information by GPS. A specific key including at least one piece of information of “E2”, “E3”, “E4”, “E5”, “E6”, “E7” Manipulate and save in a pair, the steps of the retrievable by selecting limiting function for operation of a particular key, if the detected voltage of the pseudo device power OFF state, the relative said portable telephone A process of setting the power supply from the battery to the power saving state, displaying the limited function on the display unit, and not turning on the backlight when there is no request, and setting the pseudo power OFF state that enables execution of the limited function When the mobile phone is in a pseudo power OFF state, the limited function corresponding to the stored specific key operation is taken out for the specific key operation of the mobile phone, and the extracted limited function is An emergency operation method when the battery of the mobile phone is exhausted is provided.

In the emergency operation program at the time of battery consumption of the mobile phone that turns off the device power supply when the battery is depleted and stops the power supply from the battery, detects the voltage of the pseudo device power off state higher than the voltage of the device power off state And at least one function of sending a specific destination telephone of the mobile phone, transmitting a specific destination mail, turning on a camera light, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information mail by GPS. The key “E1” of the cellular phone for operating the limited function and the functions of calling the specified destination phone, sending the specified destination mail, turning on the LCD backlight, sounding the alarm, blinking the LED, and sending the final location information by GPS. Contains at least one piece of information “E2”, “E3”, “E4”, “E5”, “E6”, “E7” And save in pairs a constant key operation, the procedure to enable extraction select the limited capabilities with respect to the operation of a particular key, if the detected voltage of the pseudo device power OFF state, to the mobile telephone The power supply from the battery is put into a power saving state, the limited function is not displayed on the display unit, and when there is no request, the backlight is not turned on, and the pseudo power supply is turned off to enable execution of the limited function. And, when the mobile phone is in a pseudo power OFF state, the limited function corresponding to the stored specific key operation is extracted for the operation of the specific key of the mobile phone, And an emergency operation program when the battery of the mobile phone is depleted.

  As described above, according to the present invention, the pseudo-device power-off voltage that is higher than the device power-off voltage is detected, and the limited function of the mobile phone and the specific key that executes the limited function by key operation When the voltage of the pseudo device power-off state is detected, a battery can be stored in the mobile phone. When the power supply from the mobile phone is in a power saving state, the pseudo power supply is turned off to enable execution of a limited function, and the mobile phone is in a pseudo power supply OFF state, it is stored for a specific key operation on the mobile phone. Since the limited function corresponding to the operation of the specified key is taken out and the extracted limited function is executed, the pseudo device power supply that enables the limited function operation by operating the specific key is turned off. The appearance is the same as the conventional device power-off state with no LED display, so that the user can keep using it and keep the state where the minimum necessary functions can be used in preparation for a real emergency. It is possible to be held or held.

  That is, in a conventional mobile phone, after a battery low voltage alarm occurs and the device power is turned off, basically, unless the battery voltage recovers by charging again or replacing the battery. It was impossible to operate all the functions, and it was inconvenient when there was no charging environment or replacement battery in an emergency. In particular, the mobile phone is carried around without leaving your skin, and there is strong expectation as a tool that can be used in an emergency, but according to the present invention, when the pseudo device power is turned off by a low voltage without the user being aware of it. However, the possibility of using the minimum necessary functions in an emergency is extremely high.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a mobile phone according to the present invention. As shown in the figure, the cellular phone 200 is provided with an antenna 201, and the antenna 201 transmits and receives a phase-modulated radio wave to and from a base station (not shown).
A wireless transmission / reception unit 202 is connected to the antenna 201. The wireless transmission / reception unit 202 demodulates radio waves received from the antenna 201 and performs phase modulation on a digital signal from a control unit 203, which will be described later. A connection function is realized, for example, the call number of the own device is detected from the demodulated signal, and an incoming call notification is performed, and a voice signal and a digital data signal are processed.

A control unit 203 is connected to the wireless transmission / reception unit 202, and the control unit 203 is configured by a CPU (Central Processing Unit) and controls each unit.
An operation memory 204 is connected to the control unit 203. The operation memory 204 stores the CPU operation program and fixed data of the control unit 203 and is used for work during the CPU operation.
A storage memory 205 is connected to the control unit 203, and the storage memory 205 stores mail received by the mail transmission / reception function of the wireless transmission / reception unit 202, created / transmitted mail, and user data such as an address book.

Note that a part of the operation memory 204 and the holding memory 205 is generally realized by dividing an area in the same physical device.
An ID memory 206 is connected to the control unit 203, and the ID memory 206 holds a calling number (calling number) of the own device.
An operation unit 207 is connected to the control unit 203. The operation unit 207 is used for inputting a telephone number when making a call, inputting text such as address book registration, and inputting various function settings. It is a key input unit.

A display unit 208 is connected to the control unit 203. The display unit 208 displays a telephone number at the time of outgoing / incoming calls, displays various input contents linked with the operation unit 207, and displays text mail contents received by an e-mail transmission / reception function. In order to ensure visibility in a dark place, it usually has a backlight function.
A notification unit 209 is connected to the control unit 203, and the notification unit 209 is a part that is mainly controlled by the control unit 203 when a call of its own device is detected and performs notification of an incoming call, usually a speaker, An LED (light emitting diode), a vibrator, and the like are included.

A camera unit 210 is connected to the control unit 203. The camera unit 210 is a module for realizing a camera function that is generally installed in recent years, and has a light function for enabling photographing in a dark place. Often have.
The mobile phone 200 is provided with a battery 212, and the battery (battery) 212 is connected to the control unit 203 via the voltage detector 211 and supplies power to each unit.

The voltage detector 211 monitors the voltage level of the battery 212, and if it falls below a certain threshold, notifies the control unit 203, and controls the display unit 208 and the notification unit 209 from the control unit 203 to notify the user of a low voltage alarm. It is a part that makes it possible to alarm.
In particular, the voltage detector 211 is provided with a low voltage 1 and a low voltage 2 as thresholds, and the low voltage 1 is set higher than the low voltage 2 (low voltage 2 <low voltage 1).
The detection voltage of the voltage detector 211 is
Low voltage 2 <detection voltage ≤ low voltage 1
For, the voltage detector 211 notifies the transition to the pseudo device power OFF state to the control unit 203, the control unit 203 to the power saving state to stop all functions except for some functions of the mobile phone 200 .

Furthermore, the detection voltage of the voltage detector 211 is
Detection voltage ≤ low voltage 2
In this case, the voltage detector 211 notifies the control unit 203 of the transition to the apparatus power OFF state.

Further, the holding memory 205 is provided with a limited function information holding unit 205A, and the limited function information holding unit 205A holds limited function information for the operation of a specific key by the operation unit 207.
Further, the control unit 203 is provided with a pseudo device power supply OFF state control unit 203A and a limited function control unit 203B.

  When the pseudo device power supply OFF state control unit 203 </ b> A receives a notification of transition from the voltage detector 211 to the control device 203 to the pseudo device power supply OFF state, some functions of the mobile phone 200, such as the voltage detector 211, the operation unit 207. Enter a power-saving state that stops functions other than the above functions. As a result, the display 208 is not displayed and the backlight is not turned on, and the appearance is the same as in the apparatus power OFF state, and the power consumption can be reduced as much as possible.

The limited function control unit 203B executes the limited function for the operation of the specific key when the pseudo device power OFF state control unit 203A puts the mobile phone 200 in the pseudo device power OFF state and the predetermined specific key is operated. When executing the limited function, the limited function is not displayed on the display unit 208, and power is supplied only to a portion necessary for executing the limited function.
Thereby, unlike a normal apparatus power OFF state, only a specific function can be operated by operating a specific key.

The control unit 203 stops all the functions of the mobile phone 200 except for the function of the voltage detector 211 when there is a notification of transition from the voltage detector 211 to the apparatus power supply OFF. The stop of all functions by the shift to the apparatus power supply OFF may be performed by software via the control unit 203, or the power supply may be cut off by hardware.
FIG. 2 is a diagram for explaining the limited functions held in the limited function information holding unit 205A of the holding memory 205 in FIG.

  As shown in this figure, in the limited function information holding unit 205A of the holding memory 205, a numeric key is used as a specific key for the limited function, and as an example, “E0” is used as the specific key for the emergency call (110) transmission function. ”Is saved,“ E1 ”is saved as the specific key for the specific destination telephone call function,“ E2 ”is saved as the specific key for the specific destination mail transmission function, and the camera light lighting function is “E3” is stored as the specific key, “E4” is stored as the specific key for the LCD backlight lighting function, “E5” is stored as the specific key for the alarm sound function, and the LED blinks For the function, “E6” is stored as a specific key.

  In this way, the operation of the specific key is changed to an operation different from the normal operation, the operation of the limited function in emergency by the user's unconscious and easy key operation is avoided, and the power consumption is prevented. Furthermore, it is possible to avoid an erroneous operation that is likely to occur when a specific key is a combination of a plurality of keys and used as a single key, thereby preventing power consumption.

  In the case of low voltage 1 <detection voltage, the relationship between the limited function held in the limited function information holding unit 205A and the specific key operation can be displayed on the display unit 208, and selected or not selected at the head of the displayed limited function. It is possible to select a limited function by adding a mark and selecting by the user.

Here, as an example, it is assumed that emergency call (110) transmission, specific destination telephone transmission, camera light lighting, and alarm sounding are selected.
FIG. 3 is a flowchart for explaining an operation example of the pseudo apparatus power OFF state control unit 203A of the control unit 203 in FIG. As shown in the figure, in step S301, the voltage detector 211 detects the voltage of the battery 212, detects the low voltage 1 due to the voltage drop due to the consumption of the battery 212, and if detected, Proceed to step S302.

In step S302, when the control unit 203 receives notification of detection of the low voltage 1 from the voltage detector 211, the pseudo device power supply OFF state control unit 203A starts a low voltage alarm generation power supply OFF timer.
In step S303, in the pseudo device power supply OFF state control unit 203A, if the low voltage alarm generation power supply OFF timer has expired, the process proceeds to step S304.

  In step S304, the pseudo device power OFF state control unit 203A sets the mobile phone 200 to the pseudo device power OFF state. When the mobile phone 200 is turned off, the function of the mobile phone 200 becomes a limited function. In this case, to the function of the mobile phone 200 other than the voltage detector 211, the pseudo device power OFF state control unit 203A of the control unit 203, the limited function control unit 203B, and the part related to the limited function information holding unit 205A of the holding memory 205. The power supply of is stopped.

In step S305, the voltage detector 211 detects the voltage of the battery 212, detects the low voltage 2 accompanying the voltage drop of the battery 212, and proceeds to step S306 if it is detected.
In step S306, when the control unit 203 receives notification of detection of the low voltage 2 from the voltage detector 211, the control unit 203 starts a low voltage alarm generation power supply OFF timer.

In step S307, the control unit 203 proceeds to step S308 when the low voltage alarm generation power OFF timer time is over.
In step S308, the control unit 203 sets the mobile phone 200 to the apparatus power OFF state. When the mobile phone 200 is turned off, the mobile phone 200 stops all functions. End the process.

FIG. 4 is a diagram for explaining an operation example of the limited function control unit 203B of the control unit 203 in FIG. As an example, the limited function selected in FIG. 2 will be described.
As shown in this figure, in step S401, the control unit 203 determines whether or not there is a notification of transition from the voltage detector 211 to the pseudo device power OFF state. If there is no notification, the process ends.
If there is a notification in step S402, the pseudo device power OFF state control unit 203A sets the mobile phone 200 in the pseudo device power OFF state.

In step S403, the limited function control unit 203B refers to the limited function information holding unit 205A of the holding memory 205 with respect to the operation of the operation unit 207, and determines whether or not the operation is the key “E0”. If not, the process proceeds to step S407.
In step S404, as a limited function corresponding to the operation of the key “E0”, power is supplied only to a portion necessary for executing the emergency call (110) transmission function in an emergency.

In step S405, an emergency call (110th) call function is executed in an emergency. As a result, the user performs an operation in consideration of an emergency.
In step S406, it is determined whether or not the emergency call transmission function execution at the time of emergency is finished. If not, the process proceeds to step S404 and the above procedure is repeated. If the execution is finished, the process is finished.

In step S407, the limited function control unit 203B refers to the limited function information holding unit 205A with respect to the operation of the operation unit 207, determines whether or not the operation of the key “E1” is performed. Proceed to step S411.
In step S408, as a limited function corresponding to the operation of the key “E1”, power is supplied only to a portion necessary for executing the function of calling a specific destination telephone in an emergency.

In step S409, the function of calling a specific destination telephone in an emergency is executed. As a result, the user performs an operation in consideration of an emergency.
In step S410, it is determined whether or not the function execution for calling a specific destination telephone in an emergency is finished. If not, the process proceeds to step S408, and the above procedure is repeated. If the execution is finished, the process is finished.
In step S411, the limited function control unit 203B refers to the limited function information holding unit 205A with respect to the operation of the operation unit 207, and determines whether or not the operation of the key “E3” is performed. Proceed to step S415.

In step S412, as a limited function corresponding to the operation of the key “E3”, power is supplied only to a portion necessary for executing the function of turning on the camera light in an emergency. In this case, power is not supplied to the wireless transmission / reception unit 202 or the like.
In step S413, an emergency camera light lighting function is executed. As a result, the user performs an operation in consideration of an emergency.

In step S414, the end of execution of the corresponding function is determined. If it has not ended, the process proceeds to step S412 and the above procedure is repeated. If the execution is ended, the process ends.
In step S415, the limited function control unit 203B refers to the limited function information holding unit 205A with respect to the operation of the operation unit 207, determines whether or not the operation of the key “E5” is performed. The process ends.

In step S416, as a limited function corresponding to the operation of the key “E5”, power is supplied only to a portion necessary for executing the function of sounding an alarm sound in an emergency. In this case, power is not supplied to the wireless transmission / reception unit 202 or the like.
In step S417, an emergency alarm sound function is executed. As a result, the user performs an operation in consideration of an emergency.

In step S418, the end of the execution of the corresponding function is determined. If it has not ended, the process proceeds to step S416, and the above procedure is repeated. If the execution is ended, the process ends.
Therefore, according to the present invention, the pseudo device power OFF state that enables the limited function operation by the specific key operation looks the same as the conventional device power OFF state without the LCD display and LED display, so that the user can It is possible to suppress the continuous use of the device, and to maintain a state in which a minimum necessary function can be used in preparation for a real emergency, or it is highly possible that the device can be maintained.

  That is, in a conventional mobile phone, after a battery low voltage alarm occurs and the device power is turned off, basically, unless the battery voltage recovers by charging again or replacing the battery. It was impossible to operate all the functions, and it was inconvenient when there was no charging environment or replacement battery in an emergency. In particular, the mobile phone is carried around without leaving your skin, and there is strong expectation as a tool that can be used in an emergency, but according to the present invention, when the pseudo device power is turned off by a low voltage without the user being aware of it. However, the possibility of using the minimum necessary functions in an emergency is extremely high.

FIG. 5 is a modification of FIG. 2 and is a diagram for explaining the limited functions held in the limited function information holding unit 205A of the holding memory 205.
As shown in the figure, since the cellular phone 200 equipped with a GPS (Global Positioning System) function has begun to spread in recent years, as a limited function, an e-mail transmission function of final location information in an emergency is provided. Then, “E7” is additionally stored as a specific key in the limited function information holding unit 205A of the holding memory 205. As a result, the function to send the current position information or the current measurement position stored in the memory by e-mail to a specific destination by operating a specific key in the pseudo device transmission point OFF state is executed. It is also possible to do so.

In the above description, combinations of specific letters of the alphabet and numeric keys are shown as the specific keys. For example, combinations of hiragana and numeric keys are “A1”, “A2”,. As examples of combinations of katakana characters and numeric keys, “A1”, “A2”,... “A6” may be used, and as examples of combinations of only numeric keys, “11”, “12”,..., “15” may be used, and as specific keys, combinations of three characters “EE1”, “EE2”,..., “EE5” may be used.
In this way, it is possible to adapt to the user's preference for the operation of the specific key.

  In the above description, the cellular phone has been described. However, the present invention is not limited to this, and the present invention can be applied to a PHS (simple cellular phone) and a PDA (portable information terminal).

It is a block diagram which shows schematic structure of the mobile telephone which concerns on this invention. It is a figure explaining the limited function hold | maintained at the limited function information holding | maintenance part 205A of the memory 205 for holding | maintenance in FIG. 2 is a flowchart for explaining an operation example of a pseudo device power supply OFF state control unit 203A of the control unit 203 in FIG. It is a figure explaining the operation example of the limited function control part 203B of the control part 203 in FIG. FIG. 5 is a diagram illustrating a limited function held in a limited function information holding unit 205A of the holding memory 205, which is a modification of FIG. It is a flowchart explaining the example of an operation | movement after the low voltage alarm of the battery of the mobile telephone used as the premise of this invention.

Explanation of symbols

200 ... mobile phone 201 ... antenna 202 ... radio transmission / reception unit 203 ... control unit 203A ... pseudo device power OFF state control unit 203B ... limited function control unit 204 ... operation memory 205 ... holding memory 205A ... limited function information holding unit 206 ... ID Memory 207 ... Operation unit 208 ... Display unit 209 ... Notification unit 210 ... Camera unit 211 ... Voltage detector 212 ... Battery

Claims (6)

In a mobile phone that turns off the device power supply with battery consumption and stops power supply from the battery,
A voltage detection unit of the battery that detects a voltage of the pseudo device power off state higher than a voltage of the device power off state;
A limited function including at least one function of sending a specific destination telephone of the mobile phone, transmitting a specific destination mail, turning on a camera light, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS; Keys “E1”, “E2” of the mobile phone for operating each function of calling a specified destination phone, sending a specified destination email, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS. A limited function information holding unit for storing a pair of specific key operations including at least one piece of information of “E3”, “E4”, “E5”, “E6”, and “E7”;
When the voltage detection unit of the battery detects the voltage in the pseudo device power OFF state, the power supply from the battery is set to the power saving state , the limited function is not displayed on the display unit, and the backlight is used when there is no request. A pseudo device power supply OFF state control unit that turns on the pseudo power supply OFF state that enables execution of the limited function held in the limited function information holding unit without lighting up ,
When the mobile phone is in the pseudo power OFF state by the pseudo device power OFF state control unit, the operation of the specific key corresponds to the operation of the specific key from the limited function information holding unit for the operation of the specific key of the mobile phone. A cellular phone comprising: a limited function control unit that extracts the limited function and executes the extracted limited function. The pseudo device power OFF state controller, JP Teisaki telephone call, the radio transmitting and receiving unit to which power is supplied in performing the respective functions of a particular destination mail submission, camera light lighting, LCD backlight, alarm sound ringing, when performing at least one of the functions of the LED flashing is characterized by stopping the power supply, the portable telephone according to claim 1. When the mobile phone is in the pseudo power OFF state and the limited function is not executed, the battery voltage detection unit, the limited function information holding unit, the pseudo device power OFF state control unit, and the limited function control unit 2. The mobile phone according to claim 1, wherein power supply from the battery is stopped for a part other than a part for operating a function and a function for operating the specific key. The mobile phone according to claim 1 , wherein the specific key is a combination of a character key and a numeric key. In the emergency operation method when the battery of the mobile phone is exhausted, the power supply from the battery is turned off as the battery is consumed, and the power supply from the battery is stopped.
Detecting a pseudo device power off voltage that is higher than the device power off voltage;
A limited function including at least one function of sending a specific destination telephone of the mobile phone, transmitting a specific destination mail, turning on a camera light, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS; Keys “E1”, “E2” of the mobile phone for operating each function of calling a specified destination phone, sending a specified destination email, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS. A specific key operation including at least one piece of information of “E3”, “E4”, “E5”, “E6”, “E7” is stored as a pair, and a limited function is selected for the specific key operation. A process of making it possible to take out;
When a voltage in the pseudo device power supply OFF state is detected, the power supply from the battery to the mobile phone is set in a power saving state, a limited function is not displayed on the display unit, and a backlight is displayed when there is no request. And turning off the pseudo power supply to enable execution of the limited function without lighting up ,
When the mobile phone is in the pseudo power OFF state, the limited function corresponding to the stored specific key operation is extracted for the specific key operation of the mobile phone, and the extracted limited function is executed. And an emergency operation method when the battery of the mobile phone is exhausted. In the emergency operation program at the time of battery consumption of the mobile phone that turns off the device power supply with battery consumption and stops the power supply from the battery,
A procedure for detecting a pseudo device power off voltage that is higher than a device power off voltage;
A limited function including at least one function of sending a specific destination telephone of the mobile phone, transmitting a specific destination mail, turning on a camera light, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS; Keys “E1”, “E2” of the mobile phone for operating each function of calling a specified destination phone, sending a specified destination email, turning on an LCD backlight, sounding an alarm, blinking an LED, and sending a final location information by GPS. A specific key operation including at least one piece of information of “E3”, “E4”, “E5”, “E6”, “E7” is stored as a pair, and a limited function is selected for the specific key operation. A procedure for making it possible to take out;
When a voltage in the pseudo device power supply OFF state is detected, the power supply from the battery to the mobile phone is set in a power saving state, a limited function is not displayed on the display unit, and a backlight is displayed when there is no request. The procedure to turn off the pseudo power supply that enables execution of the limited function without lighting up ,
When the mobile phone is in the pseudo power OFF state, the limited function corresponding to the stored specific key operation is extracted for the specific key operation of the mobile phone, and the extracted limited function is executed. And an emergency operation program when the battery of the mobile phone is exhausted.

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