JP2011210270A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To preferentially secure power for an incoming call standby function of electronic equipment.SOLUTION: The electronic equipment 120 includes: a means 124 for attaining a first function including the incoming call standby function; a means 216 for attaining a second function which is different from the first function; a storage part 140 which stores power consumption of the incoming call standby function; a means 122 for calculating incoming call standby time after starting restriction of the second function based on a threshold of the remaining power amount of a secondary battery 200 for starting restriction of the second function and the power consumption of the incoming call standby function; and a means 150 for displaying the calculated incoming call standby time.

Description

  The present invention relates to an electronic device having a rechargeable battery, and in particular, restricts the operation of other functions such as music playback in order to secure a predetermined power for a main function such as a telephone function in a mobile phone. It relates to possible electronic devices.

  In mobile electronic devices such as cellular phones, PDAs (Personal Digital Assistants), and notebook personal computers (PCs), rechargeable batteries are used. In a normal mobile phone, in addition to the main telephone functions for incoming call waiting and telephone calls, applications with high power consumption such as music playback and games are frequently used. In order to manage the power, the mobile phone is provided with a function of displaying or confirming the remaining power of the battery. Thus, when running applications such as music playback and games on a mobile phone, the user must pay attention to the remaining battery power so that the main functions of standby and call can be used.

The technique for accurately calculating battery capacity is known as “Impedance Track ^™ ” gas gauge technology from Texas Instruments (TI).

  Japanese Patent Laid-Open No. 2000-253142 (A) (Patent Document 1) published on September 14, 2000 describes a reduction in power consumption of a communication terminal device. In the communication terminal device, the remaining battery level detection unit detects the remaining battery level, and the control unit compares the detected remaining battery level with a threshold value, and determines that the remaining battery level is low. Functions such as the incoming LED, ringtone control unit, and display unit are stopped to reduce power consumption, thereby extending the call time or standby time.

  Japanese Patent Laid-Open No. 2002-7002 (A) (Patent Document 2) published on January 11, 2002 describes an electronic device. The electronic device includes a plurality of functions to be a power saving operation target and a power saving operation setting function for setting the priority order of the power saving operations of the plurality of functions.

  Japanese Unexamined Patent Application Publication No. 2002-199062 (A) (Patent Document 3) published on July 12, 2002 describes a portable terminal. The portable terminal can reproduce the built-in data such as music. The portable terminal includes a battery charge state detection unit or a battery remaining amount detection unit, and enables data reproduction to be started when the start of battery charging is detected. In the following cases, the data reproduction operation is not started, thereby making it possible to notify the user with favorite music during charging or to save power when the remaining battery level is low.

JP 2000-253142 A Japanese Patent Laid-Open No. 2002-7002 JP 2002-199062 A

  With known power management techniques in mobile phones, if the user neglects battery power, battery power for key functions such as telephone functions may not be sufficient.

  It is effective for the inventors to automatically limit the operation of another additional function in order to ensure sufficient battery power for the main functions of the mobile phone such as the telephone function. Recognized.

  An object of the present invention is to preferentially and sufficiently secure power for an incoming call waiting function of an electronic device.

  Another object of the present invention is to limit other functions of the electronic device when the remaining power is less than a threshold.

According to a feature of an embodiment of the present invention, an electronic device includes a means for implementing a first function including a destination standby function, the consumption of the means for implementing the different second function as the first function, incoming standby function An incoming call waiting time after starting the restriction of the second function based on the storage unit for storing the power, the threshold value of the remaining power of the secondary battery for starting the restriction of the second function, and the power consumption of the incoming call waiting function Means for calculating, and means for displaying the calculated waiting time for incoming call.

  According to the embodiment of the present invention, sufficient power for the incoming call waiting function of the electronic device can be secured preferentially, and other functions can be restricted when the remaining power is equal to or less than a threshold value.

  Embodiments of the present invention will be described with reference to the drawings. In the drawings, similar components have the same reference numerals.

  FIG. 1A shows a mobile electronic device 100, such as a mobile phone, having a rechargeable secondary battery according to an embodiment of the invention. FIG. 1B illustrates essential communication key functions 214 such as a call function and an incoming call waiting function stored in the memory 140 in the mobile electronic device 100, and a music playback utility application and a video telephone, for example. A table showing the power consumption of an additional function 126 such as an additional communication application is shown.

  The electronic device 100 includes a main control unit 120 such as a CPU, a memory 140, an RF transceiver 130 for mobile phone communication coupled to an antenna ANT, an audio circuit 135 having a speaker SPK and a microphone MIC, a display 150, an input key. 152, a control key 154 such as a confirmation key and a shift key, a battery control unit 160, and a secondary battery 200 coupled to the battery control unit 160. The components 130 to 160 are connected to the main control unit 120. The battery control unit 160 includes a remaining battery power detection unit 162 that detects the remaining power of the secondary battery 200. The main control unit 120 includes a remaining battery power level detected by the remaining battery power level detection unit 162, a table of each function and power consumption shown in FIG. In accordance with the above conditions, control is performed so as to permit and restrict the operation of the various functions of the electronic device 100. When connected to the external AC power source, the battery control unit 160 rectifies the current supplied from the external AC power source to generate a DC current, and operates to continue charging the secondary battery 200 until it is full.

  The electronic device 100 includes a power management unit 122 mounted on the main control unit 120, and further includes, for example, a call function and an incoming call waiting function as the main function 124, as illustrated in FIG. 1B. Other additional functions 126 include a videophone function, a group call function (PoC) on a mobile phone, an e-mail function, a music playback function, and a game function (game 1, game 2). The email function may be one main function. Some of these functions may be implemented in the form of hardware such as LSI on the main control unit 120, and other parts are implemented on the main control unit 120 in accordance with a program stored in the memory 140. May be implemented. The operation time of these functions with respect to a certain amount of battery power is calculated based on the power consumption of each function shown in the table of FIG. 1B by the arithmetic unit of the main control unit 120 or the power management unit 122.

  FIG. 2 shows a mobile electronic device 102, such as a mobile phone, having a secondary battery 200 and a direct methanol fuel cell (DMFC) 170, according to another embodiment of the invention. The electronic device 102 includes a fuel cell 170 in addition to the components 120 to 160 and 200 shown in FIG. The fuel cell 170 includes a DMFC control unit 172, a DMFC power generation unit 174, and a fuel cartridge 176 coupled to the battery control unit 160 and the secondary battery 200. The electronic device 102 has the same function as the electronic device 100. The DMFC control unit 172 communicates with the battery control unit 160, and the DMFC power generation unit 174 generates electric power by chemically reacting methanol supplied from the fuel cartridge 176 under the control of the DMFC control unit 172, and passes through the battery control unit 160. The secondary battery 200 is continuously charged until it is fully charged.

  FIG. 3A shows the relationship between the remaining battery power of the secondary battery 200 that changes with the passage of time and the start and release of an operation restriction of a certain additional function in order to explain the principle of the present invention. FIG. 3B shows an example of a display screen for power management displayed on the display 150 of the electronic device 100 of FIG.

  In FIG. 3A, the remaining battery power P10 of the secondary battery 200 detected by the remaining battery power detection unit 162 depends on the functions of the mobile electronic device 100 or 102, such as the music playback function and / or the incoming call waiting function. It gradually decreases with power consumption. The initial remaining battery power P10 is 100% full, and all operations of the functions of the mobile electronic device 100 or 102 are not limited. When the battery power remaining amount P10 decreases to the level of the battery power remaining amount P1 at the start of operation restriction set by the user, the power management unit 122 allows only the operations of the main functions of the electronic device 100 or 102 and Start limiting the operation of additional functions. Thereafter, the user connects the electronic device 100 to an AC power source to charge the secondary battery 200, or the secondary battery 200 is automatically charged by the DMFC power generation unit 174 of the electronic device 102, and the remaining battery power P10 is reduced. When the level of the battery power remaining amount P8 for canceling the operation restriction set by the user is exceeded, the main control unit 120 releases the restriction on the operation of the additional function and allows the operation of all the functions.

  When the battery power remaining amount P10 decreases to the level of the battery power remaining amount P1 at the start of operation restriction, for example, only the incoming call waiting function of the main function 124 of the electronic device 100 or 102 with the shell (lid) of the mobile phone closed. While operating, the electronic device 100 or 102 may be controlled by the power management unit 122 so that at least one of the remaining battery power detection unit 162, the LED backlight, and the vibrator is inactive. Further, the power management unit 122 may perform control so that the calling signal generation time of the answering machine function as the main function 124 is shortened. Thereby, battery power consumption can be suppressed.

  Referring to FIG. 3B, in the power management display screen displayed on the display 150, the remaining battery power P <b> 1 (%) for starting the operation restriction of the additional function set by the user, the main to be secured set by the user The minimum set call time T2 (minute) of the call function as the function 124, the remaining call time T3 (minute) currently available for the call function within the range of the set call time T2, should be set by the user The minimum setting waiting time T4 (hour) of the incoming call waiting function as the main function 124, the remaining waiting time T5 (time) currently available within the range of the setting waiting time T4, between the release and start of the operation restriction Setting operation time T6 (minutes) indicating the operable time of the application as the additional function 126 with respect to the battery power amount, current battery power Application remaining operable time T7 (minutes) in the amount, battery power remaining amount P8 (%) of operation restriction release of the additional function set by the user, application type or identification AP9 selected by the user, and power management The current remaining battery power P10 (%) of the secondary battery 200 is displayed in a bar-like percentage at the left position in the display screen.

  When the current battery power remaining amount P10 is equal to the battery power remaining amount P8 of the operation restriction release, the set operation time T6 of the application is thereafter set to the level of the battery power remaining amount P1 at which the operation restriction is started. It represents the time during which the selected application AP 9 can operate until it reaches. In the electronic device 100 that does not have the fuel cell 170 for charging, the user typically pays attention to the remaining battery power P8 whose operation restriction is released and the set operation time T6 that represents the operable time for the remaining battery power P8. Therefore, it is not necessary to display the set operation time T6 and the remaining battery power P8 for releasing the restriction.

  Battery power remaining amount P1 (%) when limiting the operation of the additional function 126, minimum set call time T2 (minute) to be secured, minimum set waiting time T4 to be secured, and remaining operation of the application are possible The time T7 and the remaining battery power P8 when the operation restriction of the additional function 126 is released are set by the user using the input key 152 and the control key 154. As the type AP9 of the selected application, the type of the application AP9 selected by the user using the input key 152 and the control key 154 is displayed.

  FIG. 4 is a flowchart for limiting the operation of the additional function 126 executed by the power management unit 122 of the main control unit 120 of the electronic device 100 of FIG.

  In Step 302, the power management unit 122 compares the current battery power remaining amount P10 of the secondary battery 200 with the battery power remaining amount P1 at the start of the operation restriction of the additional function. It is determined whether or not the remaining power P1 is greater. When it is determined that the current battery power remaining amount P10 is larger than the battery power remaining amount P1, the power management unit 122 allows the operations of the main function 124 and the additional function 126 in step 304. As long as the current remaining battery power P10 is larger than the remaining battery power P1, steps 302 to 304 are repeated.

  If it is determined in step 302 that the current battery power remaining amount P10 is not greater than the battery power remaining amount P1, in step 306, the power management unit 122 starts limiting the operation of the additional function 126, and the synthesized voice announcement is made. Alternatively, a warning sound is used to warn that the current battery power remaining amount P10 is not larger than the battery power remaining amount P1 or the additional function 126 cannot be used by the sound circuit 135 and the speaker SPK, and only the operation of the main function 124 is permitted. As an alternative configuration, in step 306, the power management unit 122 determines that the current battery power remaining amount P10 is not greater than the battery power remaining amount P1 by the audio circuit 135 and the speaker SPK without limiting the operation of the additional function 126 or The operation of the main function 124 and the additional function 126 may be permitted only by warning that the additional function cannot be used.

  In step 308, the power management unit 122 makes an inquiry to the battery control unit 120 in step 308 to determine whether the secondary battery 200 is currently being charged. In step 310, the power management unit 122 repeats step 308 until charging is started. If it is determined that the battery is being charged, in step 310, the power management unit 122 determines whether the secondary battery 200 has been fully charged and has reached a predetermined remaining battery power level (for example, P10 = 100%). judge. If it is determined that charging is complete, the procedure returns to step 304. Step 310 is repeated until charging is complete. In this way, the operation of the additional function 126 is limited according to the remaining battery power P10 and the remaining battery power P1 of the secondary battery 200.

  FIG. 5 shows another flowchart for limiting the operation of the additional function 126 executed by the power management unit 122 of the main control unit 120 of the electronic device 100 or 102 of FIG. 1A or 2. Steps 302 to 308 are the same as those in FIG.

  In step 312, the power management unit 122 determines whether or not the remaining battery power P10 of the secondary battery 200 has reached the remaining battery power (for example, P10 = 90%) from which the functional operation restriction is released. If it is determined that the remaining battery power P10 has reached the remaining battery power P8 for which the functional operation restriction is released, the procedure returns to step 304. Step 310 is repeated until the battery power remaining amount P10 reaches the battery power remaining amount of the function operation restriction release.

  6 and 7 show a flowchart of processing for power management of various functions of the mobile electronic device 100 or 102, which is executed by the power management unit 122 of the main control unit 120. FIG. 8A to 8E are flowcharts showing details of the processes A to E in FIG.

  Referring to FIG. 6, when the mobile electronic device 100 or 102 starts the power management screen display process executed by the power management unit 122, the power management unit 122 displays the power management status in step 402. Start processing. In step 404, the power management unit 122 causes the battery power remaining amount detection unit 162 to detect the battery power remaining amount P10, obtains the current battery power remaining amount P10, and starts to restrict the current battery power remaining amount P10. Compare with the remaining battery power P1.

  In step 406, the power management unit 122 determines whether or not the current battery power remaining amount P10 is greater than the battery power remaining amount P1 at which operation restriction is started. When it is determined that the current battery power remaining amount P10 is larger than the battery power remaining amount P1 at which the operation restriction is started (P10> P1), the power management unit 122 sets the current battery power remaining amount P10 and the table in step 408. In accordance with the power consumption of the selected application AP9 in the middle, it is possible to operate with the difference battery amount (P10−P1) obtained by subtracting the battery power remaining amount P1 for starting operation restriction from the current battery power remaining amount P10. The operable time T7 of the application AP9 is calculated, and the operable time T7 is displayed in step 410. In step 422, the power management unit 122 displays the current battery power remaining amount P10. Thereafter, the procedure proceeds to step 506 in FIG.

  If it is determined in step 406 that the remaining battery power P10 is not larger than the remaining battery power P1 for starting operation restriction (P10 ≦ P1), the power management unit 122 in step 412 determines the current remaining battery power P10. The remaining call time T3 that can be used and the remaining standby time T5 that can be used are calculated. In step 414, the operable time T7 of the application is determined to be 0 minutes, and the remaining call that can be used is determined according to the calculation result. The display of the time T3 and the remaining available standby time T5 is changed. Thereafter, the procedure proceeds to Step 422. Thereafter, the procedure proceeds to step 506 in FIG.

  Referring to FIG. 7, in step 506, the power management unit 122 receives input setting information input by the user using the input key 152 and the control key 154. In step 508, the power management unit 122 determines the type of input setting information. If it is determined that the input setting information is the remaining battery power P1 at which the function operation restriction is started, the procedure proceeds to step 512 (FIG. 8A) in which the process A is executed. If it is determined that the input setting information is the set call time T2, the procedure proceeds to step 514 (FIG. 8B) in which the process B is executed. If it is determined that the input setting information is the setting standby time T4, the procedure proceeds to step 516 (FIG. 8C) in which the process C is executed. If it is determined that the input setting information is the remaining operable time T7 of the application, the procedure proceeds to step 518 (FIG. 8D) in which process D is executed. When it is determined that the input setting information is the remaining battery power P8 whose operation restriction has been released, the procedure proceeds to step 520 (FIG. 8E) in which the process E is executed. If it is determined that the input setting information is a change of the application AP9, the procedure proceeds to step 522 in which the process F is executed.

  Referring to FIG. 8A, in step 610, the power management unit 122 compares the current battery power remaining amount P10 with the set or changed battery power remaining amount P1 at the start of operation restriction, and the current battery power remaining amount P10. Is greater than the remaining battery power P1 at which operation restriction starts. When it is determined that the current battery power remaining amount P10 is larger than the battery power remaining amount P1 at which the operation restriction is started (P10> P1), the power management unit 122 operates from the current battery power remaining amount P10 in step 612. The operable time T7 of the operable application is calculated according to the difference battery amount (P10−P1) obtained by subtracting the battery power remaining amount P1 at the start of restriction and the power consumption of the application in the table of FIG. 1B. . In step 614, the power management unit 122 sets the corresponding set call time T2, the set call time according to the battery power remaining amount P1 at the start of operation restriction set or changed and the power consumption of the call function and the incoming call waiting function in the table. The remaining call time T3 within the range of T2, the corresponding set waiting time T4, and the remaining waiting time T5 within the set waiting time T4 are calculated. Further, the power management unit 122 responds to the application according to the difference between the battery power remaining amount P1 at the start of operation restriction of the additional function 126 and the battery power remaining amount P8 at the operation restriction release, and the power consumption of the application as the additional function 126. A set operation time T6 is calculated. In step 620, the power management unit 122 changes the display screen for power management as shown in FIG. 3B. Thereafter, the procedure proceeds to Step 532 in FIG.

  If it is determined in step 610 that the current battery power remaining amount P10 is not greater than the battery power remaining amount P1 at which operation restriction is started (P10 ≦ P1), the power management unit 122 in step 632 The remaining call time T3 and remaining standby time T5 of the currently available call function are calculated according to the amount P10 and the power consumption of the call function and incoming call waiting function in the table. In step 634, the power management unit 122 calculates the corresponding set operation time T6 of the application according to the difference between the remaining battery power P1 at the start of operation restriction and the remaining battery power P8 from the operation restriction release, and the power consumption of the application. To do. In step 640, the power management unit 122 determines that the application operable time T7 is 0 minute. The procedure then proceeds to step 620. Thereafter, the procedure proceeds to Step 532 in FIG.

  Referring to FIG. 8B, in step 602, the power management unit 122 calculates the corresponding remaining battery power P1 for starting operation restriction according to the set or changed set call time T2 and the power consumption of the call function. Steps 610, 632, 640 and 620 are similar to those of FIG. 8A and will not be described again.

  In step 615, the power management unit 122 calculates the set standby time T4 and the remaining standby time T5 according to the calculated battery power remaining amount P1 at the start of the operation restriction and the power consumption of the incoming call waiting function, and further calculates. The set operation time T6 corresponding to the application is calculated according to the difference between the remaining battery power P1 at the start of operation restriction and the remaining battery power P8 at the operation restriction release, and the power consumption of the application.

  In step 635, the power management unit 122 similarly sets a corresponding setting standby according to the battery power remaining amount P1 for starting the operation restriction, the battery power remaining amount P8 for releasing the operation restriction, and the power consumption of the incoming call waiting function and application. The time T4 and the corresponding set operation time T6 of the application are calculated.

  Referring to FIG. 8C, in step 603, the power management unit 122 calculates a corresponding remaining battery power P1 for starting operation restriction according to the set or changed setting standby time T4 and the power consumption of the standby function. Steps 610, 620, 632 and 640 are similar to those of FIG. 8A.

  In step 616, the power management unit 122 responds similarly according to the calculated battery power remaining amount P1 for starting operation restriction, the battery power remaining amount P8 for releasing operation restriction, and the power consumption of the call function and application. The set call time T2, the remaining call time T3, and the corresponding set operation time T6 of the application are calculated.

  In step 636, the power management unit 122 responds similarly according to the calculated battery power remaining amount P1 for starting operation restriction, the battery power remaining amount P8 for releasing operation restriction, and the power consumption of the call function and application. The set call time T2 and the set operation time T6 corresponding to the application are calculated.

  Referring to FIG. 8D, in step 604, the power management unit 122 determines the required remaining battery power P12 (%) according to the remaining operable time T7 of the set or changed application and the power consumption of the application in the table. ) And the current remaining battery power P10 is compared with the required remaining battery power P12. In step 605, the power management unit 122 determines whether or not the current remaining battery power P10 is greater than the required remaining battery power P12 (P10> P12). If it is determined that the current battery power remaining amount P10 is not greater than the required battery power remaining amount P12, in step 608, the power management unit 122 determines that the current remaining battery power amount P10 is the remaining operable time of the application. Display that T7 cannot be secured. Thereafter, the procedure proceeds to Step 532 in FIG.

  If it is determined in step 605 that the current remaining battery power P10 is greater than the required remaining battery power P12 (P10> P12), in step 606, the power management unit 122 determines from the current remaining battery power P10. A new battery power remaining amount P11 at the start of operation restriction equal to the difference (P10−P12) obtained by subtracting the necessary remaining battery power P12 is calculated, and the new battery power remaining amount P11 at the start of operation restriction is used as the original operation restriction. Compare with the remaining battery power P1 of the start. In step 611, the power management unit 122 determines whether or not the battery power remaining amount P11 at the start of the new operation restriction is greater than the original operation restriction start remaining amount P1 (P11> P1). If it is determined that the remaining battery power P11 at the start of the new operation restriction is larger than the remaining battery power P1 at the start of the operation restriction, in step 613, the power management unit 122 determines that the remaining operation possible time T7 of the application Maintain the value of. Thereafter, the procedure proceeds to Step 620. Step 620 is similar to that of FIG. 8A. Thereafter, the procedure proceeds to Step 532 in FIG.

  If it is determined in step 611 that the remaining battery power P11 for starting the new operation restriction is not greater than the original remaining battery power P1 for starting the operation restriction, in step 637, the power management unit 122 starts the new operation restriction. Similarly, the set call time T2, the remaining call time T3, the set waiting time T4, the remaining waiting time T5, and the set operation time T6 of the application are calculated in accordance with the remaining battery power P1 = P11. Thereafter, the procedure proceeds to Step 620. Thereafter, the procedure proceeds to Step 532 in FIG.

  Referring to FIG. 8E, in step 607, the power management unit 122 determines whether the operation restriction release battery power remaining amount P <b> 8 that has been set or changed and the battery power remaining amount P <b> 1 that has started operation restriction, and the power consumption of the application. An application setting operation time T6 is calculated. Thereafter, the procedure proceeds to Step 620. Thereafter, the procedure proceeds to Step 532 in FIG.

  Referring back to FIG. 7, in step 522, the power management unit 122 sets the application AP 9 that has been set or changed, the power consumption of the application in the table, the remaining battery power P <b> 8 for releasing the operation restriction, and the battery for starting the operation restriction. The set operation time T6 of the application and the remaining operable time T7 are calculated according to the difference in the remaining power P1. Thereafter, the procedure proceeds to Step 532.

  In step 532, it is determined whether the user has determined the setting of the current display content displayed on the display 150. If it is determined that the user has determined the setting, in step 534, the power management of the mobile electronic device 102 is performed according to the battery power remaining amount P1 at the start of operation restriction that has been set or changed.

  FIG. 9 shows a change in the power management screen when the battery power remaining amount P1 at the start of the operation restriction is changed by the process A in step 512 of FIG. When the user operates the input key 152 and the control key 154 (FIG. 6, step 402) to call up the display process of the power management screen, the current power management state is displayed on the display 150. FIG. Are displayed (steps 410, 414 and 422). In this case, the current remaining battery power P10 is 60%. The remaining battery power P1 at the start of operation restriction is set to 50% of the fully charged state. Next, in this case, as shown in the screen of FIG. 9 b) when the battery power remaining amount P1 at the start of the operation restriction is changed, for example, in order to lower the operation restriction start level, the user presses the input key 152 and Using the control key 154, the remaining battery power P1 at the start of operation restriction is changed to 40%. Next, the process A (FIG. 8A) of step 512 in FIG. 7 is executed, and as shown in the display after recalculation in FIG. 9C, the set call time T2, the remaining call time T3, and the setting standby The display of time T4, remaining standby time T5, application setting operation time T6, and application remaining operable time T7 is changed.

  FIG. 10 shows another change in the power management screen when the battery power remaining amount P1 at the start of operation restriction is changed by the process A in step 512 of FIG. When the user calls the display process of the power management screen, the initial screen of a) power management of FIG. 10 showing the current power management state is displayed on the display 150. In this case, the current remaining battery power P10 is 40%. The remaining operable time T7 of the application is 0 minute. The remaining battery power P1 at the start of operation restriction is set to 50% of the fully charged state. Next, as shown in the screen of FIG. 10 b) when the battery power remaining amount P1 at the start of operation restriction is changed, the user presses the input key 152 and the control key 154 to lower the operation restriction start level, for example. Is used to change the remaining battery power P1 at the start of operation restriction to 40%. Next, the process A (FIG. 8A) in step 512 in FIG. 7 is executed, and as shown in the display after recalculation in FIG. 10C, the set call time T2, the set standby time T4, and the application The display of the set operation time T6 is changed.

  FIG. 11 shows a change in the power management screen when the set call time T2 is changed by the process B in step 514 of FIG. When the user calls the display process of the power management screen, the initial screen of a) power management in FIG. 11 a showing the current power management state is displayed on the display 150. In this case, the current remaining battery power P10 is 60%. The current set call time T2 is set to 60 minutes. Next, as shown in the screen of FIG. 11 b) when the set call time T2 is changed, for example, in order to shorten the set call time, the user uses the input key 152 and the control key 154 to set the set call time. Change T2 to 40 minutes. Next, processing B in step 514 in FIG. 7 is executed, and as shown in the display after recalculation in FIG. 11, the remaining battery power P1 for starting the operation restriction, the remaining call time T3, the setting The display of the standby time T4, the remaining standby time T5, the application setting operation time T6, and the remaining operable time T7 is changed.

  FIG. 12 shows a change in the power management screen when the remaining operable time T7 of the application (music playback) is changed by the process D in step 516 in FIG. When the user calls the display process of the power management screen, the initial screen of a) power management shown in FIG. In this case, the current remaining battery power P10 is 60%. The remaining operable time T7 of the current application is 20 minutes. Next, as shown in the screen in FIG. 12 b) when the remaining operable time T <b> 7 of the application is changed, the user uses the input key 152 and the control key 154 to play music for 60 minutes, for example. The remaining operable time T7 is changed to 60 minutes. Next, the process D in FIG. 7 is executed, and as shown in the display after c) recalculation in FIG. 12, the remaining battery power P1, the set call time T2, and the remaining call time T3 at which operation restriction starts. The display of the setting standby time T4, the remaining standby time T5, and the application setting operation time T6 is changed.

  FIG. 13 shows a change in the power management screen when the remaining battery power P8 whose operation restriction is released is changed by the process E in step 518 in FIG. When the user calls the display process of the power management screen, the initial screen of a) power management shown in FIG. In this case, the current remaining battery power P10 is 60%. The battery power remaining amount P8 of the operation restriction release is set to 90% of the fully charged state. Next, in this case, as shown in the screen in FIG. 13 b) when the battery power remaining amount P8 for canceling the operation restriction is changed, for example, the application after the operation restriction is started and the charging is further started is accelerated. In order to make it available, the user uses the input key 152 and the control key 154 to change the battery power remaining amount P8 of the operation restriction release to 80%. Next, the process E of FIG. 7 is executed, and the display of the set operation time T6 of the application is changed as shown in c) the display after recalculation in FIG.

  FIG. 14 shows a change in the power management screen when the application AP9 is changed by the process F in step 520 in FIG. When the user calls the display process of the power management screen, the initial screen of a) power management shown in FIG. In this case, the current remaining battery power P10 is 60%. The current application AP9 is set to music playback. Next, in this case, as shown in the screen of FIG. 14 b) when the application AP9 is changed, for example, in order to play a game on the electronic device 100 or 102, the user presses the input key 152 and the control key 154. The application AP9 is changed to the game 1 by using it. Next, the process F of FIG. 7 is executed, and the display of the set operation time T6 and the remaining operable time T7 of the changed application is changed, as shown in c) the display after recalculation in FIG. Is done.

  FIG. 15 shows the distribution of the battery for main functions such as a predetermined call time and incoming call waiting time and other functions of the mobile electronic device 100 or 102 with respect to the remaining battery power P10. According to the embodiment of the present invention, when the battery power remaining amount P10 is gradually decreased by the operation of the main function and other functions in the mobile electronic device 100 or 102 and reaches the battery power remaining amount P1 of the limit start, The remaining battery power remaining amount P10 = P1 can be secured for a predetermined minimum operation time for only the main function, and the remaining power obtained by subtracting the battery power remaining amount P1 from the battery power remaining amount P10 is obtained by the user. Can be freely used for the use of the main function 124 and the additional function 126. Accordingly, it is possible to prevent the user from inadvertently using the battery power for the operation of the main function 124 for the use of the additional function 126.

  The embodiments described above are merely given as typical examples, and it is obvious to those skilled in the art to combine the components of each embodiment, and variations and variations thereof will be apparent to those skilled in the art. Obviously, various modifications may be made to the above-described embodiments without departing from the scope of the invention as set forth in the scope.

Regarding the embodiment including the above examples, the following additional notes are further disclosed.
(Supplementary Note 1) Information processing unit, memory coupled to the information processing unit, a wireless communication unit coupled to the information processing unit, an audio circuit coupled to the information processing unit, display means, and input An electronic device comprising: means; a secondary battery; and a detection means for detecting a remaining power of the secondary battery,
The information processing unit has power management means for managing the power of the secondary battery, main functions such as a call function and an incoming call waiting function, and other additional functions,
When the current remaining power of the secondary battery detected by the detection means is less than or equal to a predetermined threshold, the power management means starts limiting the operation of the additional function,
The power management means calculates the other according to one of the predetermined threshold value of the secondary battery and the set operation time of the main function with respect to the battery power remaining amount of the predetermined threshold value,
The power management means is operable for the main function and for the additional function according to the remaining power level of the secondary battery detected by the detecting means and the remaining battery power level of the predetermined threshold. And
The power management means is configured to display the current remaining power of the secondary battery, the predetermined threshold, the operable time of the main function, and the operable time of the additional function on the display means. An electronic device characterized by
(Supplementary Note 2) When the remaining power level of the secondary battery detected by the detection unit is equal to or lower than the predetermined threshold value, the power management unit is configured to perform the main function according to the remaining battery power level of the predetermined threshold value. The electronic apparatus according to claim 1, wherein the set operation time and the operable time of the main function based on the current remaining power of the secondary battery are calculated and displayed on the display unit. .
(Additional remark 3) The said power management means calculates the said setting operation time of the said main function according to the said predetermined threshold set by the user, It displays on the said display means, It is characterized by the above-mentioned. Electronics.
(Additional remark 4) The said power management means calculates the operation possible time of the said additional function according to the said predetermined | prescribed threshold value set by the user, and the said current power remaining amount, It is characterized by the above-mentioned. The electronic device according to Supplementary Note 1.
(Additional remark 5) The said power management means calculates the said predetermined threshold value according to the said setting operation time of the said main function set by the user, and displays it on the said display means, The additional description 1 characterized by the above-mentioned. Electronics.
(Supplementary Note 6) The power management means calculates the predetermined threshold and the operable time of the additional function according to the set operation time of the main function set by the user and the current remaining power. The electronic device as set forth in appendix 1, wherein the electronic device is displayed on the display means.
(Supplementary Note 7) The power management means calculates the predetermined threshold and the set operation time of the main function according to the operable time of the additional function set by the user and the current remaining power. The electronic device as set forth in appendix 1, wherein the electronic device is displayed on the display means.
(Supplementary note 8) The electronic device according to supplementary note 1, wherein when the additional function is selected, the power management unit calculates an operable time of the additional function and displays the calculated operation time on the display unit.
(Supplementary note 9) The electronic apparatus according to supplementary note 1, wherein at least one of the detection unit, the LED backlight, and the vibrator is stopped while the incoming call waiting function as the main function is in operation.
(Additional remark 10) When the present electric power remaining amount of the said secondary battery detected by the said detection means is below a predetermined threshold value, the said power management means displays on the said display apparatus that the said additional function cannot be used. The electronic apparatus according to appendix 1, wherein:
(Supplementary Note 11) When the current remaining battery power exceeds another threshold to be released from the restriction on the operation of the additional function due to the charging of the secondary battery after the restriction on the operation of the additional function is started. The electronic apparatus according to appendix 1, wherein the power management unit releases the restriction on the operation of the additional function.
(Supplementary Note 12) The power management means may perform the addition according to the remaining power level according to a difference between the predetermined threshold value for starting the restriction of the operation of the additional function and another threshold value for releasing the restriction of the operation of the additional function. The electronic device according to appendix 1, wherein a function setting operation time is calculated and displayed on the display means.
(Supplementary Note 13) An information processing unit, a memory coupled to the information processing unit, a wireless communication unit coupled to the information processing unit, an audio circuit coupled to the information processing unit, a display unit, and an input An electronic device comprising: means; a secondary battery; and a detection means for detecting a remaining power of the secondary battery,
The information processing unit has power management means for managing the power of the secondary battery, main functions such as a call function and an incoming call waiting function, and other additional functions,
When the current remaining power level of the secondary battery detected by the detection unit is a predetermined threshold value or less, the power management unit generates a warning sound,
The power management means calculates the other according to one of the predetermined threshold value of the secondary battery and the set operation time of the main function with respect to the battery power remaining amount of the predetermined threshold value,
The power management means is operable for the main function and for the additional function according to the remaining power level of the secondary battery detected by the detecting means and the remaining battery power level of the predetermined threshold. And
The power management means is configured to display the current remaining power of the secondary battery, the predetermined threshold, the operable time of the main function, and the operable time of the additional function on the display means. An electronic device characterized by

FIG. 1A illustrates a typical mobile electronic device having a rechargeable secondary battery according to an embodiment of the present invention. FIG. 1B shows a table representing the power consumption of each function stored in the memory. FIG. 2 illustrates a mobile electronic device having a secondary battery and a fuel cell according to another embodiment of the present invention. FIG. 3A shows the relationship between the remaining battery power of the secondary battery, which changes with the passage of time, and the start and release of an operation restriction of a certain additional function in order to explain the principle of the present invention. FIG. 3B shows an example of a display screen for power management displayed on the display of the electronic apparatus of FIG. FIG. 4 is a flowchart for limiting the operation of the additional function executed by the power management unit of the main control unit of the electronic device of FIG. FIG. 5 shows another flowchart for limiting the operation of the additional function executed by the power management unit of the main control unit of the electronic device of FIG. 1A or 2. 6 and 7 show a flowchart of processing for power management of various functions of the mobile electronic device, which is executed by the power management unit of the main control unit. (Explained in FIG. 6) 8A to 8E are flowcharts showing details of the processes A to E in FIG. (Explained in Fig. 8A) (Explained in Fig. 8A) (Explained in Fig. 8A) (Explained in Fig. 8A) FIG. 9 shows a change in the power management screen when the battery power remaining amount P1 at the start of the operation restriction is changed by the process A in FIG. FIG. 10 shows another change of the power management screen when the battery power remaining amount P1 at the start of the operation restriction is changed by the process A of FIG. FIG. 11 shows a change in the power management screen when the set call time T2 is changed by the process B in the step of FIG. FIG. 12 shows a change in the power management screen when the remaining operable time T7 of the application is changed by the process D in FIG. FIG. 13 shows a change in the power management screen when the battery power remaining amount P8 whose operation restriction is released is changed by the process E in FIG. FIG. 14 shows a change in the power management screen when the application AP9 is changed by the process F of FIG. FIG. 15 shows the distribution of the battery for the main functions of the mobile electronic device and other functions with respect to the remaining battery power P10.

DESCRIPTION OF SYMBOLS 100 Mobile electronic device 120 Main control part 122 Power supply management part 124 Main functions (call function, incoming call waiting function)
126 Additional functions (applications)
140 Memory 162 Battery level detection unit

Claims (4)

Means for realizing a first function including an incoming call waiting function;
Means for realizing a second function different from the first function;
A storage unit for storing power consumption of the incoming call waiting function;
Means for calculating an incoming call waiting time after starting the restriction of the second function based on a threshold of a remaining power level of a secondary battery for starting the restriction of the second function and power consumption of the incoming call waiting function; Means for displaying the call waiting time calculated in priority;
An electronic device comprising:   When the detected remaining power level of the secondary battery is less than or equal to the threshold value, the calculating means calculates a waiting time for incoming calls according to the detected remaining power level of the secondary battery and displays the received time. The electronic apparatus according to claim 1, wherein the electronic apparatus is displayed.   After the restriction on the second function is started, the calculating means determines whether the remaining power of the secondary battery exceeds another threshold value to be released from the restriction on the second function due to the charging of the secondary battery. The electronic device according to claim 1, wherein whether or not to determine is determined. Means for realizing a first function including an incoming call waiting function;
Means for realizing a second function different from the first function;
A storage unit for storing power consumption of the incoming call waiting function;
Means for calculating an incoming call waiting time after the warning is generated based on a threshold value of a remaining power level of a secondary battery that generates the warning and power consumption of the incoming call waiting function;
Means for displaying the calculated call waiting time;
An electronic device comprising:

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