JP2005242631A - Application switching method, application switching system, and cellular phone equipped with the system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system that realizes application switching depending on a battery residual capacity in an information processing device, such as a cellular phone, for executing a continuously operated application for game or media reproduction, by introducing application operation succession information. <P>SOLUTION: In the information processing device that has battery residual capacity monitoring means, application storing means for storing a plurality of applications operable for the same purpose, application selection table storing means storing a table of the applications stored in the application storing means in association with battery residual capacity, and means for storing application operation succession information, and that operates the application continuously, when the battery residual capacity decreases, the operated application is switched to the application depending on the battery residual capacity, which can reduce the power consumption of the information processing device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an application switching method and an application switching device that are mounted on a battery-operated mobile phone, an electronic notebook, a video recording / playback device, and the like.

An information processing apparatus that operates on a battery is required to reduce power consumption, reduce battery consumption, and extend the usage time of the apparatus as much as possible. In order to perform processing so as not to impair the operability and performance of the device while reducing power consumption, conventional information processing devices prepare multiple processes according to the remaining battery level in advance, and the remaining battery level A process to be used is selected from a plurality of processes according to the method (see Patent Document 1). Also, a device that sets the work end target time, lowers the brightness of the backlight of the display device so that the process continues until the work end target time based on the current remaining battery level and power consumption, or performs processing There is also an information processing apparatus that performs power saving settings such as lowering the operating frequency (see Patent Document 2).
JP 2002-2222033 A JP 11-259183 A

  In recent years, applications that operate continuously without interruption, such as media playback of Java (registered trademark) application games and video streams, are being installed in information processing apparatuses represented by mobile phones.

  However, when playing media such as games and video streams continuously, even if multiple applications of the same purpose are prepared according to the battery level of the device, the continuity of operation is changed when switching applications. It will be lost. In order to maintain continuity, when playing back these media, the application cannot be switched and the battery is used up quickly.

  Here, in order to make the battery last longer, a means for reducing the performance of the information processing apparatus according to the remaining battery power and power consumption can be considered. However, if the above measures are applied to media such as games that are important for the user, the operation speed of the application will change, and the main applications such as music playback and video playback will be interrupted. was there.

  Furthermore, in media playback applications, etc., in which images, sounds, etc. are played back in combination, whether the quality of image playback or the quality of audio playback should be prioritized when the battery level of the device decreases. Depends on user preference.

  The present invention has been made in view of the above circumstances, and in an information processing apparatus such as a mobile phone that executes an application that operates continuously, such as playing a game or media, by introducing operation transfer information of the application. An object of the present invention is to provide an apparatus that realizes application switching according to the remaining battery level. In addition, another object of the present invention is to provide an apparatus that realizes application switching according to user preferences by setting an application according to the remaining battery level for each user.

  The application switching apparatus and method according to the present invention are a switching apparatus and method including an application operation takeover information storage unit, an application selection table storage unit, an application selection unit, and an application switching unit. Here, the application operation takeover information storage unit is a portion for storing application operation takeover information necessary for taking over operations between a plurality of applications. The application selection table storage unit is a part that stores an application selection table in which battery remaining amount information, application ID, and type of application operation takeover information are associated with each other. An application selection part is a part which selects the application according to battery remaining amount information based on the said application selection table and the said application operation | movement takeover information. The application switching unit is a part that switches from the running application to the application selected by the application selection unit.

  In the application switching device according to another invention, the application switching unit is separated into an application switching control unit and an application switching setting unit. Among these, the application switching control unit is a part that executes application switching by ending the running application and starting the application selected by the application selecting unit. The application switching setting unit is a part that receives the application switching instruction from the application switching control unit and performs switching setting of the application operation handover information to the application operation transfer information storage unit.

  In the application switching device according to another invention, the application switching unit includes the application switching control unit, the application switching setting unit, a system clock unit, and an application switching synchronization unit. Among these, the system clock part is a part for storing the reproduction time of the application switching device. The application switching synchronization unit is a part that monitors the system clock unit and sends an application switching synchronization instruction to the application switching control unit.

  An application switching device according to another invention includes a battery remaining amount monitoring unit, the application storage unit, the application operation takeover information storage unit, the application selection table storage unit, the application selection unit, and the application. And a switching unit. Among these, the said battery remaining amount monitoring part is a part which possesses battery remaining amount information by monitoring a battery part regularly. The application selection table storage unit stores an application selection table in which the battery remaining amount information monitored by the battery remaining amount monitoring unit, the application ID, and the type of application operation takeover information are associated with each other. It is characterized by.

  The application switching device according to another invention may include a pointer indicating an address of a medium played by the application and a playback time of the medium played by the application in the application takeover information stored in the application operation takeover information storage unit. And is included.

  An application switching apparatus according to another invention is characterized in that the application selection table storage unit has application switching destination information for specifying an application switching destination.

  According to another aspect of the present invention, there is provided an application switching apparatus including a user application selection unit having a function of transmitting an application switching command from a user to the application selection unit.

  An application switching apparatus according to another invention includes an application selection table update unit that updates the table stored in the application selection table storage part.

  In addition, the application switching device according to another invention receives an instruction from a user, and determines one application selection table among the plurality of application selection tables stored in the application selection table storage unit. It has a user detection unit for detecting a user.

  An application switching apparatus according to another invention includes an application switching condition storage unit and an application operation monitoring unit.

  Among these, the application switching condition storage unit is a part that stores a switching condition to another application for each application stored in the application selection table storage unit. The application operation monitoring unit is a part that controls the application not to be switched until the currently used application satisfies the switching condition stored in the application switching condition storage unit.

  An application switching device according to another invention has an application operation takeover information transmission unit that receives an instruction from the application switching unit and transmits the application operation takeover information to the outside, and the application selection table storage unit includes: It has a table associating the remaining battery level with the destination device.

  An application switching apparatus according to another invention has an application transmission confirmation unit that displays a transmission destination of the application operation takeover information transmission unit.

  An application switching apparatus according to another invention includes an application takeover information receiving unit that receives the application operation takeover information from the outside.

  An application switching device according to another invention has an application reception confirmation unit that displays information of a transmission source when receiving the application operation takeover information.

  In addition, a mobile phone equipped with the application switching device according to the present invention can automatically switch a plurality of color video playback applications according to the remaining battery level.

  In an information processing apparatus in which an application continuously operates according to the present invention, when the remaining battery level of the apparatus decreases, the application is switched to an application with less battery consumption according to the remaining battery level during the operation of the application. Can do. Therefore, the power consumption of the information processing apparatus can be reduced.

  In addition, for example, it is assumed that a plurality of information processing apparatuses that are connected via a network and are equipped with the application switching apparatus according to the present invention are used. In such a situation, when the remaining battery level of one device is low, the same media is played using another device. In the application switching device according to the present invention, the application operation is performed. Since only the takeover information needs to be sent to another device, it is possible to immediately reproduce the same media on the other device. Therefore, application switching without impairing the user's feeling of use is possible.

  In addition, the application switching device according to the present invention can designate the order in which applications are switched in accordance with the remaining battery level. Therefore, it is possible to switch to an application according to the remaining battery level without impairing the user's feeling of use.

  In addition, it is possible to set application switching for each user according to the remaining battery level. Therefore, it is possible to set the power saving of the information processing apparatus giving priority to the function required by the user.

  Embodiments of the present invention will be described below.

(Embodiment 1)
Embodiment 1 of the present invention will be described with reference to FIGS.

  The application switching device according to the first embodiment of the present invention includes a battery unit 101, a battery remaining amount monitoring unit 102, an application storage unit 103, an application selection table storage unit 104, an application operation takeover information storage unit 105, an application selection unit 106, An application switching unit 107, an application command input unit 108, an application activation unit 109, and an application end unit 110 are included. Each part will be described below.

  The battery unit 101 supplies power to the entire information processing apparatus in which the application switching apparatus is incorporated.

  The battery remaining amount monitoring unit 102 performs polling with respect to the battery unit 101 at a constant cycle, receives an electric signal returned from the battery unit 101, and reads the remaining battery level, thereby monitoring the remaining battery level. Further, the battery remaining amount monitoring unit 102 has means for sending information on the remaining battery level to the application selecting unit 106.

  The application storage unit 103 includes a plurality of applications 111, 112, 113, 114,... Operating for the same purpose.

  As shown in FIG. 2, the application selection table storage unit 104 always stores a table associating application categories, application IDs, battery remaining amount information, and application operation takeover information types. It is assumed that the application selection table storage unit 104 according to the first embodiment does not change.

  Here, typical examples of the application category include a moving image reproduction application, an audio reproduction application, or a multi-function application such as a browser. Here, however, all application categories are video playback applications.

  The application ID is an ID for distinguishing applications of the same purpose stored in the application selection table storage unit 104. Here, the ID of the application 111 is “A”, the ID of the application 112 is “B”, the ID of the application 113 is “C”, and the ID of the application 114 is “D”. Since the application category is a moving image reproduction application, the application 111 is a color image & stereo sound, the application 112 is a color image & monaural sound, the application 113 is a monochrome image & monaural sound, and the application 114 is a dummy moving image without sound. Each image is an application for reproducing.

  The battery remaining amount information is information indicating an appropriate battery remaining amount range for reproducing each application. As shown in FIG. 2, the application 111 is set to 100 to 50%, the application 112 is set to 50 to 30%, the application 113 is set to 30 to 20%, and the application 114 is set to 20 to 0%. There may be a plurality of applications corresponding to one battery level (eg, the actual battery level is 40%, the battery level information for the application 112 is 60 to 30%, and the application 113 is Battery level information of 50 to 20%).

  The type of application operation takeover information indicates what information is actually necessary when switching between applications. Here, the types of application operation takeover information are constituted by three types of playback stream pointers, playback times, and application IDs of the respective applications. The type of application operation takeover information is common to each application as shown in FIG. 2, and does not change.

  The application operation takeover information storage unit 105 is a part where application operation takeover information is actually stored. Here, a playback stream pointer, a playback time, and an application ID are stored. The application operation transfer information stored in the application operation transfer information storage unit 105 is updated as needed according to the operation of the application.

  Here, the playback stream pointer and playback time stored in the application operation transfer information storage unit 105 will be described. The playback stream pointer indicates the address of media (for example, a movie, animation, etc.) that the application plays. The playback time is not a playback time in the entire system of the application switching device, but a single played media that indicates which part of a single media having a certain playback time is currently being played. It is the playback time inside. When there is no medium being played back, the playback time is 0.

  The application selection unit 106 selects an application corresponding to the remaining battery level by referring to the application selection table storage unit 104 based on the remaining battery level information sent from the remaining battery level monitoring unit 102. Then, the application selection unit 106 compares the application selected according to the remaining battery level with the running application, and when it is necessary to perform application switching, the application switching unit 107 displays the selected application. Instruct to switch to.

  The application switching unit 107 has means for switching from the running application to the switching destination application selected by the application selection unit 106.

  The application command input unit 108 receives a command for starting an application from the user, and instructs the application startup unit 109 to start the application. The application command input unit 108 receives a command to end the application from the user. Means for instructing 110.

  The application activation unit 109 has means for executing an application activation instruction from the application command input unit 108. Furthermore, the application activation unit 109 acquires the type of application operation takeover information of the application to be activated from the application selection table storage unit 104, and obtains only the application operation takeover information corresponding to the type of application operation takeover information acquired here as an application. Means for storing in the operation takeover information storage unit 105.

  The application end unit 110 includes a unit that executes an application end instruction from the application command input unit 108 and a unit that deletes the application operation takeover information of the running application from the application operation takeover information storage unit 105.

  Next, FIG. 1, FIG. 2, FIG. 8, FIG. 9 and FIG. 9 show operations at the time of application startup, switching (switching from application 111 to application 112), and termination of the application switching device according to the present embodiment. This will be described with reference to the flowchart shown in FIG.

  First, the operation of the application switching apparatus according to the present embodiment when the user instructs activation of the application 111 will be described with reference to the flowcharts of FIGS. 1, 2, and 8. The application command input unit 108 illustrated in FIG. 1 instructs the application activation unit 109 to activate the application 111 instructed by the user (S801). The application activation command by the user is issued via an input device such as a key, a touch panel, or a mouse in the information processing apparatus in which the application switching device according to the present embodiment is incorporated.

  When an application and media activation instruction is transmitted from the application command input unit 108, the application activation unit 109 activates the application 111 designated by the user (S802). At the same time, the application activation unit 109 acquires the type of application operation takeover information of the application 111 from the application selection table storage unit 104. Here, as shown in FIG. 2, the playback stream pointer, playback time, and application ID stored in the application selection table storage unit 104 are the types of application operation takeover information to be acquired.

  Therefore, the application activation unit 109 acquires the application ID “A” for the application 111 from the application selection table storage unit 104 and stores the application ID “A” in the application operation takeover information storage unit 105.

  Next, storage of the playback time and playback stream pointer in addition to the application ID among the types of application operation takeover information shown in the table of FIG. 2 will be described. The playback time and playback stream pointer are stored when the user commands playback or change of media, as in the case of playback of an application. The user sends a media playback command or change command to the application command input unit 108. Upon receiving this command, the application command input unit 108 sends a media playback instruction or a media change command to the application activation unit 109. At this time, the application command input unit 108 passes the address of the media to be played back or the media after the change, and the playback time (0 if not specified) to the application launch unit 109. Then, the application activation unit 109 refers to the application selection table storage unit 104, and in the example of the table in FIG. 2, a playback stream pointer indicating a media address and a playback time are necessary as application operation takeover information. The application operation takeover information is stored in the application operation takeover information storage unit 105.

  As described above, the application activation unit 109 actually activates the application and media that the user has instructed to activate in response to the application activation instruction and the media activation instruction from the user. Then, necessary application operation transfer information (application ID in the case of application activation, reproduction time and reproduction stream pointer in the case of activation of media) is stored in the application operation transfer information storage unit 105. In this way, all application operation takeover information of the application 111 is stored in the application operation takeover information storage unit 105 (S803).

  Next, the operation of the application switching device will be described. The operating application is the application 111, and the remaining battery level at that time is 40%. In this case, according to the application selection table in FIG. 2, it is understood that it is necessary to switch the application from the application 111 to the application 112. Therefore, hereinafter, the operation of the application switching apparatus according to the first embodiment when switching from the application 111 to the application 112 will be described with reference to the flowcharts of FIG. 1, FIG. 2, and FIG.

  The battery remaining amount monitoring unit 102 shown in FIG. 1 detects the remaining battery level by polling the battery unit 101 (S901). Then, the remaining battery level monitoring unit 102 sends the remaining battery level to the application selection unit 106.

  Next, the application selection unit 106 detects the application ID of the application operation takeover information stored in the application operation takeover information storage unit 105, that is, the application ID of the currently operating application (S902). The application selection unit 106 has an application ID “A” because the currently operating application is the application 111. However, if the application operation takeover information (application ID) is not stored in the application operation takeover information storage unit 105, the processing returns to S901 as can be seen from the flowchart of FIG. 9 (S903).

  Further, the application selection unit 106 refers to the application selection table storage unit 104 based on the application ID of the currently operating application, and stores battery remaining amount information (battery remaining amount) corresponding to the currently operating application ID. Range) is acquired (S904). Here, since the application ID of the currently operating application is “A”, the battery remaining amount information (battery remaining amount range) of 100 to 80% is acquired.

  The application selection unit 106 determines whether or not the battery remaining amount sent from the battery remaining amount monitoring unit 102 in the process of S901 is included in the battery remaining amount information (battery remaining amount range) acquired in the process of S904. Check (S905). If the remaining battery level sent from the remaining battery level monitoring unit 102 is included in the remaining battery level information (battery level range) acquired in S904, the currently running application and the current remaining battery level are displayed. It is considered that the application corresponding to the amount matches. Here, the remaining battery level sent from the remaining battery level monitoring unit 102 is 40%, and the remaining battery level information (battery remaining range) acquired in S904 is 100% to 80%. That the current application and the application corresponding to the current battery level do not match.

  If the two applications match, there is no need to switch between applications. Therefore, the execution of the current application operation is continued, and the process returns to S901. When the two applications are different from each other, the application selection unit 106 refers to the application selection table storage unit 104 and acquires the application ID of the switching destination application according to the remaining battery level. Here, since the two applications are different from each other, the application selection unit 106 acquires the application ID “B” corresponding to the remaining battery level 40%. Then, the application selection unit 106 gives an application switching instruction by sending the acquired application ID to the application switching unit 107 (S906). Here, the application selection unit 106 sends the application ID “B” to the application switching unit 107.

  When the application ID is sent from the application selection unit 106, the application switching unit 107 temporarily stops the currently operating application, here, the application 111, and is simultaneously stored in the application operation takeover information storage unit 105. The playback time operation is stopped (S907). Next, the application switching unit 107 activates the application 112 stored in the application storage unit 103 (S908). Next, the application switching unit 107 temporarily stops the application 112 (S909). Next, the application switching unit 107 cancels the application ID “A” of the application 111 stored in the application operation takeover information storage unit 105, and instead uses the application ID “B” of the activated application 112 as the application operation takeover information. The data is stored in the storage unit 105 (S910). Then, the application switching unit 107 cancels the suspension of the application 112 (S911), the media (video) playback operation of the application 112 starts, and at the same time, the playback time stored in the application operation takeover information storage unit 105 is set. Resume operation. Finally, the application switching unit 107 ends the application 111 (S912).

  As described above, the application switching apparatus according to the present embodiment temporarily switches the application 111 before switching to the application 112 after temporarily stopping the application 111 before switching.

  Next, the operation of the application switching apparatus according to the first embodiment when the application 111 is terminated will be described with reference to the flowchart of FIG.

  The application command input unit 108 sends to the application end unit 110 an instruction to end the running application transmitted from the user (S1001). The end instruction by the user is performed via an input device such as a key, a touch panel, and a mouse in the information processing apparatus in which the application switching apparatus according to the present embodiment is incorporated, as in the case of the start instruction. The application end unit 110 ends the application 111 designated by the application end instruction (S1002). Then, the application end unit 110 deletes all the operation takeover information stored in the application operation takeover information storage unit 105 (S1003).

  In the application switching device according to the first embodiment, it is possible to switch to an application according to the remaining battery level during the operation of the application, and thus it is possible to reduce the power consumption of the information processing device.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.

  The components of the application switching device according to Embodiment 2 of the present invention are the same as those of the application switching device according to Embodiment 1 except for the application switching unit 107. The difference from the first embodiment is that the application switching unit is divided into an application switching control unit 301 and an application switching setting unit 302. Therefore, the operation of starting and ending the application is the same as that of the first embodiment. Therefore, here, using FIG. 2 and FIG. 3, the application selection unit 106 sends an ID “B” of the application 112 to the application switching control unit 301, thereby instructing switching from the application 111 to the application 112. Only the operation after the processing will be described.

  First, the application switching control unit 301 instructs the application switching setting unit 302 to switch from the application 111 to the application 112 by sending the application ID “B” of the application 112.

  Then, the application switching control unit 301 temporarily stops the application 111 (S907). At the same time, the application switching setting unit 302 stops the operation at the reproduction time stored in the application operation takeover information storage unit 105. Thereafter, the application switching control unit 301 activates the application 112 (S908) and pauses it (S909), thereby preparing the application 112 for reproduction.

  Further, the application switching setting unit 302 deletes the application ID “A” of the application 111 from the application operation takeover information storage unit 105 and sets the application ID “B” of the application 112 transmitted from the application switching control unit 301 to the application operation. It is set in the takeover information storage unit 105 (S910). Then, the application switching setting unit 302 issues a setting completion instruction to the application switching control unit 301. Upon receiving the setting completion instruction, the application switching control unit 301 cancels the temporary suspension of the application 112 (S911). At the same time, the application switching setting unit 302 restarts the operation at the reproduction time stored in the application operation takeover information storage unit 105. Finally, the application switching control unit 301 ends the application 111 (S912).

  By using such a method, it is possible to switch to an application according to the remaining battery level during the operation of the application, as in the application switching apparatus according to the first embodiment, thereby reducing the power consumption of the information processing apparatus. It is possible.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG.

  The application switching device according to the embodiment of the present invention is configured similarly to the application switching device according to the first or second embodiment. As shown in FIG. 4, the application switching unit of the application switching apparatus according to the present embodiment is divided into an application switching control unit 301, an application switching setting unit 302, an application switching synchronization unit 401, and a system clock storage unit 402.

  Also in the present embodiment, processing up to the application selection unit 106 in application activation and termination or application switching is the same as in the first or second embodiment. Therefore, also in this case, only the operation after the application selection unit 106 instructs the switching from the application 111 to the application 112 by sending the ID “B” of the application 112 to the application switching control unit 301. This will be described with reference to FIGS.

  First, the application switching control unit 301 instructs the application switching setting unit 302 to switch from the application 111 to the application 112 by sending the application ID “B” of the application 112. Thereafter, the application switching control unit 301 activates the application 112 (S908) and pauses it (S909), thereby preparing the application 112 for reproduction. Here, the difference from Embodiments 1 and 2 is that the application switching control unit 301 pauses the application 111, or the application switching setting unit 302 operates at the playback time stored in the application operation takeover information storage unit 105. Is not performed (S907 is not performed).

  Next, the application switching setting unit 302 that has received an application switching instruction from the application switching control unit 301 obtains the current system time T from the system clock storage unit 402. Note that the current time T of the system used here is the time of the entire system including the application switching device, and the current time T of the system advances irrespective of the operating application and the reproduced media. On the other hand, since the current time stored in the application operation takeover information storage unit 105 is determined for each medium, it is a time different from the current time T used here.

  Then, the application switching setting unit 302 adds a predetermined time T ′, which is sufficient time for application switching, to the current time T. Then, the application switching setting unit 302 deletes the application ID “A” of the application 111 from the application operation takeover information storage unit 105 and uses the application ID “B” of the application 112 transmitted from the application switching control unit 301 as the application operation. It is set in the takeover information storage unit 105 (S910). Thereafter, the application switching setting unit 302 notifies the application switching synchronization unit 401 that the setting is completed by sending time T + T ′ to the application switching synchronization unit 401.

  Upon receiving the notification of the completion of setting, the application switching synchronization unit 401 monitors the system clock storage unit 402 by polling the system clock storage unit 402. Then, at the timing when the playback time of the system becomes time T + T ′ sent from the application switching setting unit 302, the application switching synchronization unit 401 sends a synchronization timing instruction to the application switching control unit 301 to the application switching control unit 301. Send.

  In accordance with this instruction, the application switching control unit 301 releases the temporary stop of the application 112 (S911) and ends the application 111 (S912). By performing application synchronization in such a procedure, it is possible to temporarily stop playback of media such as a moving image or stop the playback time stored in the application operation takeover information storage unit 105 in the middle of the application. Switching operation is possible. Therefore, switching from the application 111 to the application 112 can be performed without further discomfort.

(Embodiment 4)
Embodiment 4 of the present invention will be described with reference to FIG.

  The application switching apparatus according to the fourth embodiment of the present invention is configured in the same manner as the application switching apparatus according to the first embodiment. FIG. 5 shows an example of an application selection table stored in the application selection table storage unit 104 according to the fourth embodiment. The application selection table in FIG. 5 differs from the application selection table in FIG. 2 used in the first to third embodiments of the present invention in that a switching destination application ID is included. The application selection unit 106 selects an application according to the remaining battery level based on the application selection table according to the fourth embodiment. A specific example is shown below.

  For example, it is assumed that the remaining battery level sent from the remaining battery level monitoring unit 102 is 25% due to the rapid battery consumption while the application 111 is operating. The application selection unit 106 needs to switch applications because the remaining battery level of 25% is not included in the remaining battery level information (battery level range) 100 to 80% corresponding to the currently operating application. Judge that there is. At this time, the application selection unit 106 in the application switching device according to the first to third embodiments simply selects an application according to the remaining battery level 25% (selects the application ID “C” of the application 113). On the other hand, the application selection unit 106 in the application switching device according to the fourth embodiment first refers to the switching destination application ID corresponding to the running application (application 111). According to FIG. 5, the switching destination application ID includes “up” ID, “down” ID, and two types of application IDs for each application. The application ID of “up” is an application ID used when the current remaining battery level is higher than the remaining battery level information (battery level range) corresponding to the running application. "Is the application ID that is used when the current remaining battery level is lower than the remaining battery level information (battery level range) corresponding to the running application. Here, the current battery level is 25%, and the battery level information (battery level range) corresponding to the running application 111 is 100 to 50%. The application ID “B” of “down” is selected. Therefore, switching from the application 111 to the application 112 is performed. Since it is periodically determined whether or not the application needs to be switched, if the remaining battery level remains 25% at the next determination timing, the application 112 is switched to the application 113 at that time. Is called.

  The application switching device according to the fourth embodiment can perform stepwise application selection by adding the switching destination application ID to the application selection table storage unit 104. Therefore, it is possible to switch applications according to the remaining battery level without impairing the user's feeling of use.

(Embodiment 5)
A fifth embodiment of the present invention will be described with reference to FIGS.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment will be described.

  The application switching apparatus according to the present embodiment shown in FIG. 6 is obtained by adding a user application selection unit 601 to the application switching apparatus according to the first embodiment. When there are a plurality of applications corresponding to certain battery remaining amount information (battery remaining amount range), the user application selecting unit 601 determines which application should be selected from among the plurality of applications. The unit 107 can be commanded. Further, the user can instruct switching of the application at an arbitrary timing through the user application selection unit 601 regardless of the remaining battery level. A specific example of the application switching operation will be described below with reference to FIGS. FIG. 7 is an example of an application selection table stored in the application selection table storage unit 104 according to the fifth embodiment. Here, the ID of the application 111 is “A”, the ID of the application 112 is “B”, the ID of the application 113 is “C”, the ID of the application 114 is “D”, and the ID of the application 115 is “E”. To do.

  It is assumed that the application selection table of FIG. 7 is stored in the application selection table storage unit 104, the remaining battery level is 40%, and the application 111 is operating. That is, the application selection unit 106 needs to select one of the two applications 112 and 113 corresponding to the remaining battery level of 40%. In such a case, the application selection unit 106 sends the application IDs “B” and “C” of the two applications 112 and 113 to the user application selection unit 601. Then, the user application selection unit 601 informs the user that one application among a plurality of applications should be selected, and the user selects an application. Interaction with the user is performed via an input device such as a display device and keys or a touch panel. The user application selection unit 601 that has received a command from the user in this way instructs application switching by sending the application ID of the selected application to the application switching unit 107 instead of the application selection unit.

  In the application selection table of FIG. 7, there are two applications, the application 112 and the application 113, that are reproduced when the battery remaining amount information (battery remaining amount range) is 50 to 30%. There is no limit on the number of applications corresponding to (battery remaining range).

  In addition, the user can select in advance which application should be selected from among a plurality of application candidates, and can notify the user application selection unit 601 of it. For example, the user application selection unit 601 can be notified that the application to be used is always the application 113 among the applications 112 and 113.

  Furthermore, the user can select an application that he / she wants to use at any timing and switch the application regardless of the remaining battery level. In this case, the user application selection unit 601 sends the application ID of the application designated by the user to the application switching unit 107 to forcibly switch the application. In this case, the user application selection unit 601 instructs the application switching unit 107 to stop the operation of the application switching unit 107. The application switching unit 107 whose operation has been forcibly stopped does not perform the processing of S907 to S912 in the flowchart of FIG. For this reason, the application switching apparatus according to the fifth embodiment ignores the processes of S907 to S912 and ends the application switching process, so that the application is not actually switched. Next, the operation of the switching unit 107 is not performed until the user sends a command for restarting the operation of the application switching unit 107 to the user application selection unit 601.

  In this way, in an environment where an application specified by the user is operating, the remaining battery level at that time is included in the remaining battery level information (battery remaining range) stored in the application selection table storage unit. Even if not, the user can set the user application selection unit 601 so as not to switch to another application. That is, the user can play back an application he / she wants to play at an arbitrary timing.

  Therefore, the application switching device according to the fifth embodiment not only realizes the power saving setting by switching the application according to the remaining battery level but also prioritizes the function required by the user, that is, according to the user's preference. Application switching.

(Embodiment 6)
A sixth embodiment of the present invention will be described with reference to FIG.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment will be described.

  The application switching device according to the present embodiment shown in FIG. 11 is a device in which an application selection table updating unit 1101 is added to the application switching device according to the first embodiment. The application selection table update unit 1101 has a function of updating the contents of the application selection table stored in the application selection table storage unit 104.

  A specific example will be described with reference to FIG. For example, assume that a user frequently selects a medium that requires high computing power for color moving image playback when a moving image playback application is executed. In such a case, by quickly switching from a color video playback application to a monochrome video playback application, color video playback can be suppressed, and power consumption can be saved. Therefore, the playback time of the video playback application can be extended. Therefore, an application selection table update unit 1101 that can change the item of battery remaining amount information (battery remaining amount range) in the application selection table of FIG. 2 is added to this apparatus.

  When the application category is a moving image reproduction application, the application selection table update unit 1101 periodically refers to the medium being reproduced and checks the reproduction frequency for each medium. Further, the application selection table updating unit 1101 acquires in advance information on the power consumption for each medium when the application 112 operates. Then, the application selection table updating unit 1101 corresponds to the application 112 in FIG. 2 when the medium having the highest reproduction frequency consumes more power when the application 112 is operating than the other media. The remaining battery information (battery remaining range) 50-30% and the remaining battery information (battery remaining range) 30-20% corresponding to the application 113 are 50-40% and 40-20% respectively. So that the application selection table is automatically updated. That is, the application selection table update unit 1101 creates an application selection table in which the boundary of the remaining battery level information (battery remaining range) existing between two applications is changed (the boundary is 30% → 20%), Update. When the remaining battery level gradually decreases, comparing before and after updating the table, the timing for switching to the application 113 that consumes less power than before updating is earlier after updating the table. Therefore, the usage time of the application can be further increased.

(Embodiment 7)
A seventh embodiment of the present invention will be described with reference to FIG.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment will be described.

  The application switching apparatus according to the present embodiment shown in FIG. 12 is obtained by adding a user detection unit 1201 to the application switching apparatus according to the first embodiment as shown in FIG. The user detection unit 1201 has a function of detecting who the current user is. Hereinafter, the realization means will be described.

  First, an application selection table for each user is stored in advance in the application selection table storage unit. Then, a plurality of user names are displayed on a display device, and the user selects a user name corresponding to himself / herself from among the displayed user names using an input device operated with a touch panel, a mouse or a key. To do. The user detection unit 1201 receives selection from the user, detects who the user is, and selects one table from among a plurality of application selection tables stored in the application selection table storage unit 104. Therefore, the application selection table storage unit 104 stores only one application selection table selected by the user. Subsequent processing is the same as that of the application switching apparatus according to the first embodiment.

  By using the user detection unit 1201 as in the application switching device according to the present embodiment, application switching according to the remaining battery level can be set for each user. Therefore, it is possible to set the power saving of the information processing apparatus with priority given to the function required for each user, that is, according to the user's preference.

(Embodiment 8)
An eighth embodiment of the present invention will be described with reference to FIGS.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment are described.

  The application switching device according to the present embodiment shown in FIG. 13 is obtained by adding an application switching condition storage unit 1301 and an application operation monitoring unit 1302 to the application switching device according to the first embodiment. The application switching condition storage unit 1301 has a function of storing a switching condition for another application for each application stored in the application storage unit 103. In addition, the application operation monitoring unit 1302 determines whether the running application satisfies the application switching condition stored in the application switching condition storage unit 1301 by monitoring the application switching condition storage unit 1301 by polling. It has a function. That is, the application switching unit 107 cannot switch applications until the application operation monitoring unit 1302 satisfies the application switching condition.

  Referring to FIG. 9, when the application selection unit 106 determines that the active application and the switching destination application are different and sends the application ID of the switching destination application to the application switching unit 107 (S906), In the application switching device according to the first embodiment, the application switching unit 107 always switches applications. However, in the application switching device according to the eighth embodiment, the application switching unit 107 further refers to the application operation monitoring unit 1302 when the running application and the switching destination application are different. The application switching unit 107 determines whether application switching can be performed by referring to the application operation monitoring unit 1302. When application switching cannot be performed because the application switching condition is not satisfied, the battery remaining amount detection process (S901) by the battery remaining amount monitoring unit 102 is performed in a feedback manner.

  Hereinafter, a specific method for determining the application switching condition will be described. For example, when one medium such as a movie is composed of a plurality of scenes, if the application is switched during the playback of the scene, the user feels unnatural when switching the application. In such a case, first, all the scene change times are registered. A condition that permits application switching only when the application playback time matches the scene change time is stored in the application switching condition storage unit 1301 as an application switching condition. Then, the application operation monitoring unit 1302 refers to the application playback time and the application switching condition stored in the application operation takeover information storage unit 105 to determine whether or not application switching is possible, and displays the determination result. Tell the application switching unit 107. Therefore, the application is not switched except at the scene change.

  As described above, the application switching apparatus according to the present embodiment can perform application switching timing by switching scenes of a video stream. It is generally considered that even if the application changes in switching scenes, the user feels less uncomfortable. Therefore, the application switching device according to the present embodiment enables application switching with less discomfort.

(Embodiment 9)
A ninth embodiment of the present invention will be described with reference to FIGS.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment are described.

  The application switching apparatus according to the present embodiment shown in FIG. 14 is obtained by adding an application operation takeover information transmission unit 1401 to the application switching apparatus according to the first embodiment. The application operation takeover information transmission unit 1401 has means for transmitting the application operation takeover information stored in the application operation takeover information storage unit 105 to the outside.

  The application selection table storage unit 104 stores an application selection table associated with a transmission destination instead of the application ID. When the application selection unit 106 selects a transmission destination instead of the application ID in the application selection table, the application switching unit 107 transmits the application operation takeover information by informing the application operation takeover information transmission unit 1401 of the transmission destination. Instruct.

  For example, when the moving image playback application is executed on the information device A using the application selection table of FIG. 2, the application switching device according to the ninth embodiment uses the application 114 that plays back the audio dummy moving image. Instead of the application ID “D”, the ID “E” indicating the destination device B is regarded as the application ID. The application switching apparatus according to the ninth embodiment stores the application ID “E” in the application selection table storage unit 104 in advance. Then, when the remaining battery level of the device A becomes less than 20%, the application switching unit 107 sends the application ID “E” corresponding to the destination device B to the application operation takeover information transmitting unit 1401. The application operation takeover information transmission unit 1401 determines that the destination of the application operation takeover information is the device B corresponding to the application ID “E”. At the same time, according to FIG. 2, the application switching unit 107 acquires the application operation takeover information including the application ID, the reproduction time, and the reproduction stream pointer of the application currently operating from the application operation takeover information storage unit 105, and It is sent to the operation takeover information transmission unit 1401. In this way, the application switching device according to the ninth embodiment can send the application operation takeover information to the device B, and takes over the operation of the application by using another device B when the battery of the device A is exhausted. It becomes possible.

(Embodiment 10)
A tenth embodiment of the present invention will be described with reference to FIG.

  Parts having the same configuration as those of the application switching apparatus according to the ninth embodiment are denoted by the same reference numerals, description thereof is omitted, and constituent parts unique to the present embodiment will be described.

  The application switching apparatus according to the present embodiment shown in FIG. 15 is obtained by adding an application transmission confirmation unit 1501 to the application switching apparatus according to the ninth embodiment. The application transmission confirmation unit 1501 has a function of displaying the transmission destination of the application operation takeover information transmission unit 1401.

  For example, when taking over the operation from the device A to the device B, the application switching unit 107 sends the application operation takeover information stored in the application operation takeover information storage unit 105 to the application operation takeover information transmission unit 1401. The destination device name “device B” is sent to the application operation takeover information transmission unit 1401 to the application transmission confirmation unit 1501. Then, at the same time as the application operation takeover information transmission unit 1401 transmits the application operation takeover information to the device B, the application transmission confirmation unit 1501 displays the destination device name “device B” on the display device of the device A. When an application transmission process is sent using means such as wireless communication, as typified by a mobile phone, the user confirms the destination application by the application switching device to which the application transmission confirmation unit 1501 is added. Can do. In particular, the application switching device according to the tenth embodiment has an effect of specifying the operation takeover destination when a large number of application takeover destination devices are prepared.

(Embodiment 11)
Application operation takeover information receiving section 1601 will be described with reference to FIG. 16 for Embodiment 11 of the present invention for receiving application operation takeover information from the outside.

  Parts having the same configuration as those of the application switching apparatus according to the first embodiment are denoted by the same reference numerals, description thereof is omitted, and components unique to the present embodiment are described.

  The application switching apparatus according to the present embodiment shown in FIG. 16 is obtained by adding an application operation takeover information receiving unit 1601 to the application switching apparatus according to the first embodiment. The application includes a means for instructing the application switching unit 107 to switch the application by sending the received information to the application switching unit 107.

  For example, when the operation transfer from the device A to the device B is performed, the application operation transfer information receiving unit 1601 of the device B receives the application operation transfer information from the device A. Then, the application operation takeover information receiving unit 1601 sends the application operation takeover information to the application operation takeover information storage unit 105 to the application switching unit 107, thereby instructing the application switching unit 107 to perform application switching. Upon receiving the application switching instruction, the application switching unit 107 switches the application in the same manner as the application switching unit 107 in the application switching apparatus according to the first embodiment. As described above, the application executed on the external device is the device on which the application switching device according to the present embodiment is mounted, and the operation is resumed.

  By performing the above operation, when an application running on another information device becomes unable to operate due to a low battery level, the processing is transferred to the information device on which this embodiment has been performed. The operation of the application can be continued.

(Embodiment 12)
Embodiment 12 of the present invention will be described with reference to FIG.

  Parts having the same configuration as those of the application switching apparatus of the eleventh embodiment are denoted by the same reference numerals, description thereof is omitted, and constituent parts unique to the present embodiment will be described.

  The application switching apparatus according to the twelfth embodiment shown in FIG. 17 is obtained by adding an application reception confirmation unit 1701 to the application switching apparatus according to the eleventh embodiment. The application reception confirmation unit 1701 has means for displaying information on the transmission source of the application operation takeover information received by the application operation takeover information receiving unit 1601.

  For example, when the operation transfer from the device A to the device B is performed, the application operation transfer information receiving unit 1601 of the device B receives the application operation transfer information from the device A. At the same time, information that the transmission source is the device A is received by wireless or the like. Then, the application operation takeover information receiving unit 1601 sends the application operation takeover information and the transmission source information to the application switching unit 107. The application switching unit 107 receives the application operation takeover information from the application operation takeover information receiving unit 1601 and then executes application switching. At the same time, the application switching unit 107 sends the transmission source information to the application reception confirmation unit 1701, thereby Notify that it was received reliably. The application reception confirmation unit 1701 receives the notification from the application switching unit 107 and indicates to the outside that the operation of the application has been taken over from the device A via the display device.

  As described above, the application switching device according to the present embodiment has an effect that an erroneous transmission can be found by specifying a transmission source of an application received using wireless means.

(Embodiment 13)
In the thirteenth embodiment, the application switching apparatus according to the first embodiment is mounted on a mobile phone. A thirteenth embodiment of the present invention will be described below with reference to FIG.

  The switch 1802 shown in FIG. 18 can be switched by the control unit 1801 and switches and connects the transmission unit 1803 and the reception unit 1804 to the antenna 1812. Normally, the antenna 1812 and the reception unit 1804 are connected to each other, and transmission is performed. Sometimes the antenna 1812 and the transmitter 1803 are connected. When a transmission signal is input from the encoding / decoding unit 1805, the transmission unit 1803 transmits a signal from the antenna 1812 via the switch 1802. When receiving the signal from the antenna 1812 via the switch 1802, the receiving unit 1804 amplifies the received signal with a predetermined amplification factor, and sends the amplified signal to the encoding / decoding unit 1805. The encoding / decoding unit 1805 expands the signal input from the reception unit 1804, outputs the expanded digital audio signal to the audio conversion unit 1806, and compresses the digital audio data input from the audio conversion unit 1806. Then, the compressed signal is transmitted to the encoder / decoder 1805. The audio conversion unit 1806 includes an A / D converter and a D / A converter, converts digital audio data input from the encoding / decoding unit 1805 into an analog audio signal, and outputs the analog audio signal to the microphone speaker 1807. At the same time, the analog audio signal input from the microphone 1808 is converted into digital audio data and output to the encoding / decoding unit 1805.

  The control unit 1801 includes a CPU and the like, controls operations of each unit, and displays information such as a telephone number and characters input from the key input unit 1809 on the liquid crystal display unit 1810. Similarly, the control unit 1801 sends commands such as application activation / termination input by the user from the key input unit 1809 to the application command input unit 108 in the application switching device. Further, the control unit 1801 has a function of notifying by the ringer speaker 1811 indicating that an incoming call has been received. Also, upon receiving a switching instruction from the application switching unit 107, the control unit 1801 causes the liquid crystal display unit 1810 to display application switching actually. In addition, the control unit 1801 stores media such as characters, sounds, still images, and moving images received from other devices and servers through the antenna 1812 in the nonvolatile memory 1813.

  Hereinafter, the operation of the mobile phone in which the application apparatus according to the thirteenth embodiment is mounted at the time of starting the application 111, switching from the application 111 to the application 112, and ending the application 111 will be described with reference to FIGS. Will be described. It is assumed that the moving image reproduction medium is stored in the nonvolatile memory 1813.

  First, activation of the application 111 will be described. When the user commands activation of the application 111 through the key input unit 1809 or the like, the key input unit 1809 sends a command to activate the application 111 to the control unit 1801. Thereafter, the control unit 1801 reads the address of the medium to be reproduced from the nonvolatile memory 1813 in which the medium is stored, and sends the address of the medium to be reproduced to the application command input unit 108. The application command input unit 108 sends an address of media to be played back to the application activation unit 109 to instruct activation of the application. Then, the application activation unit 109 extracts the application 111 stored in the application storage unit 103 and sends the application 111 to the control unit 1801. Thereafter, the application activation unit 109 stores a reproduction stream pointer indicating the address of the medium to be reproduced in the application operation takeover information storage unit 105. Finally, the control unit 1801 reproduces the moving image media stored in the non-volatile memory 1813 using the application 111, displays it on the liquid crystal display unit 1810, and causes the ringer speaker 1811 to output sound.

  Next, the operation at the time of application switching from the application 111 to the application 112 will be described. Since the operation until the application switching unit 107 receives an application switching instruction from the application selection unit 106 is exactly the same as the operation of the application switching device according to the first embodiment, only the subsequent processing will be described. When the application switching unit 107 receives an instruction to switch to the application 112 by sending the application ID “B” of the application 112 from the application selecting unit 106, the application switching unit 107 sends the application 111 to the control unit 1801. Instruct to pause. Then, the control unit 1801 pauses the application 111 being played back, and causes the liquid crystal display unit 1810 to display the stopped moving image media. Thereafter, the application switching unit 107 temporarily stops the operation at the reproduction time stored in the application operation takeover information storage unit 105. Next, the application switching unit 107 sends the application 112 stored in the application storage unit 103 to the control unit 1801. Then, the control unit 1801 uses the application 112 to play the same media as before switching, display the same on the liquid crystal display unit 1810, and output the sound to the ringer speaker 1811. At the same time, the application switching unit 107 resumes the operation at the reproduction time stored in the application operation takeover information storage unit 105 from the time at which it was temporarily stopped.

  Finally, the application end operation of the application 112 will be described. When the user commands the termination of the application 112 through the key input unit 1809 or the like, the key input unit 1809 sends a termination command for the application 112 to the control unit 1801, and the control unit 1801 terminates the application command input unit 108. Send instructions. The application command input unit 108 instructs the application end unit 110 to end the application, and the application end unit 110 instructs the control unit 1801 to end the application 111. Next, the control unit 1801 actually terminates the application 111 and stops displaying the media and application displayed on the liquid crystal display unit 1810. Further, the application end unit 110 deletes all application operation takeover information stored in the application operation takeover information storage unit 105.

  A mobile phone equipped with the application switching device according to the thirteenth embodiment as described above has a function of switching an application for reproducing media in addition to functions such as conventional voice call and data transmission / reception. .

  The application switching apparatus according to the present invention can be applied to an information processing apparatus in which an application operates continuously.

  When the battery level of the information processing device decreases, the application is switched to the application corresponding to the battery level during the operation of the application, thus reducing the power consumption of the information processing device. By specifying the order in which applications are switched, there is an effect of switching to an application according to the remaining battery level without impairing the user's feeling of use, and by setting application switching for each user according to the remaining battery level It has the effect of enabling power-saving settings for information processing devices that prioritize the functions required by the user. In addition, when the remaining battery power is reduced, the application processing can be taken over on other information processing devices. It has the effect of reducing user work interruptions due to low battery levels, and is a continuous operation such as playing games and media. It is useful as a power saving device of the information processing apparatus or the like using the battery such as a mobile phone to perform the publication.

The figure which shows the application switching apparatus of Embodiment 1 The figure which shows the example of the application selection table of Embodiment 1. The figure which shows the application switching apparatus of Embodiment 2 The figure which shows the application switching apparatus of Embodiment 3 The figure which shows the example of the application selection table of Embodiment 4. The figure which shows the application switching apparatus of Embodiment 5 The figure which shows the example of the application selection table of Embodiment 5. Flow chart at the time of starting the application of the present invention Flowchart at the time of application switching of the present invention Flow chart at the end of the application of the present invention The figure which shows the application switching apparatus of Embodiment 6 The figure which shows the application switching apparatus of Embodiment 7 The figure which shows the application switching apparatus of Embodiment 8 The figure which shows the application switching apparatus of Embodiment 9 The figure which shows the application switching device of Embodiment 10 The figure which shows the application switching apparatus of Embodiment 11 The figure which shows the application switching apparatus of Embodiment 12 A diagram showing a mobile phone (embodiment 13) equipped with an application switching device

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Battery part 102 Battery remaining charge monitoring part 103 Application storage part 104 Application selection table storage part 105 Application operation takeover information storage part 106 Application selection part 107 Application switching part 108 Application command input part 109 Application starting part 110 Application termination part 111-114 Application ID
DESCRIPTION OF SYMBOLS 301 Application switching control part 302 Application switching setting part 401 Application switching synchronization part 402 System clock storage part 601 User application selection part 1101 Application selection table update part 1201 User detection part 1301 Application switching condition storage part 1302 Application operation monitoring part 1401 Application operation takeover 1401 Information transmission unit 1501 Application transmission confirmation unit 1601 Application operation takeover information reception unit 1701 Application reception confirmation unit 1801 Control unit (CPU)
1802 Switch 1803 Transmitter 1804 Receiver 1805 Encoder / Decoder 1806 Audio Converter 1807 Microphone Speaker 1808 Microphone 1809 Key Input Unit 1810 Liquid Crystal Display Unit 1811 Ringer Speaker 1812 Antenna 1813 Nonvolatile Memory

Claims (16)

Storing application operation takeover information necessary for taking over operation between a plurality of applications;
Storing a table associating battery remaining amount information, application ID, and type of application operation takeover information;
Using the application operation takeover information and the table, selecting an application to be operated next according to the remaining battery level;
Switching from an operating application to the application selected in the selecting step;
An application switching method comprising: An application operation takeover information storage unit for storing application operation takeover information necessary for taking over operations between a plurality of applications;
An application selection table storage unit that stores an application selection table that associates battery remaining amount information, application ID, and type of application operation takeover information;
Based on the application selection table and the application operation takeover information stored in the application operation takeover information storage unit,
An application selection unit that selects an application to be operated next in accordance with the remaining battery information;
An application switching unit that performs switching from the running application to the application selected by the application selection unit;
An application switching device comprising: The application switching device according to claim 2, wherein
The application switching unit
An application switching control unit that executes application switching by ending the operating application and starting the application selected by the application selection unit;
In response to an application switching instruction from the application switching control unit, an application switching setting unit configured to perform switching setting of the application operation takeover information for the application operation takeover information storage unit;
An application switching device comprising: The application switching device according to claim 3, wherein
The application switching unit
The application switching control unit;
The application switching setting unit;
A system clock unit for storing the reproduction time of the application switching device;
An application switching synchronization unit that monitors the system clock unit and sends an application switching synchronization timing instruction to the application switching control unit to the application switching control unit;
An application switching device comprising: A battery remaining amount monitoring unit, the application storage unit, the application operation takeover information storage unit, the application selection table storage unit, the application selection unit, and the application switching unit,
An application switching device comprising:
The battery remaining capacity monitoring unit possesses the remaining battery level by periodically monitoring the battery unit,
The application selection table storage unit stores an application selection table in which the battery remaining amount information monitored by the battery remaining amount monitoring unit, the application ID, and the type of the application operation takeover information are associated with each other. Features
The application switching device according to claim 2. In the application takeover information stored in the application operation takeover information storage unit,
A pointer to the address of the media that the application plays, and
Playback time of media played by the application, and
Is included,
The application switching device according to claim 2. The application selection table storage unit includes application switching destination information for specifying an application switching destination,
The application switching device according to claim 2. 8. The application switching device according to claim 2, further comprising a user application selection unit having a function of transmitting an application switching instruction from a user to the application selection unit. Updating the table stored in the application selection table storage unit, having an application selection table update unit;
The application switching device according to claim 2, wherein Receiving a command from a user, and having a user detection unit for detecting a user by determining one application selection table among the plurality of application selection tables stored in the application selection table storage unit;
The application switching device according to claim 2, wherein For each application stored in the application selection table storage unit, an application switching condition storage unit that stores a switching condition to another application;
An application operation monitoring unit that controls not to perform application switching until the currently used application satisfies the switching condition stored in the application switching condition storage unit;
The application switching device according to claim 2, wherein Receiving an instruction from the application switching unit, and having an application operation takeover information transmission unit for transmitting the application operation takeover information to the outside,
The application selection table storage unit has a table associating the remaining battery level with a destination device,
The application switching device according to claim 2, wherein Displaying the transmission destination of the application operation takeover information transmission unit, having an application transmission confirmation unit,
The application switching device according to claim 12. Receiving the application operation takeover information from the outside, having an application takeover information receiving unit;
8. The application switching device according to claim 2, wherein When receiving the application operation takeover information, it has an application reception confirmation unit that displays information of a transmission source,
The application switching device according to claim 14. A mobile phone equipped with the application switching device according to any one of claims 2 to 15 and capable of automatically switching a plurality of color video playback applications in accordance with a remaining battery level.

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