JP4044487B2 - Communication equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication device in which an application program is mounted on a communication device platform and displays an image on a display. In particular, it is suitable for portable communication devices such as mobile phones.
[0002]
[Prior art]
In recent years, mobile communication devices such as mobile phones (hereinafter simply referred to as mobile devices) have an image display function, and Java (TM) (in the present specification, (TM) represents a registered trademark). ) And other application programs are being installed. Such an application program may be temporarily stopped.
There are various factors for the temporary stop. In addition to the case of a request from the application program itself, the mobile station program side detects a paused user operation, enters a sleep mode to reduce power consumption, or responds to an incoming call by telephone or e-mail and so on.
[0003]
As an example, a case will be described in which an application program is made resident and a function of displaying a “standby screen” of a mobile device is realized.
In a mobile device, a “standby screen” is displayed on a display such as a liquid crystal display during a waiting period for waiting for an incoming call. A background image generally called “wallpaper” is displayed on the background of the “standby screen”. “Wallpaper” is selected by the user from among a plurality of images incorporated in advance in the mobile device and one or a plurality of images registered by the user. The display of such a “standby screen” with “wallpaper” as a background is realized by a mobile device program (native environment).
On the other hand, during the standby period, an application program that displays a “standby screen” that can display a moving image of a specific display content such as an animation character or change an image according to a user operation is provided. (For example, the specification and drawings of Japanese Patent Application No. 2001-367264).
[0004]
FIG. 7 is an explanatory diagram showing changes in the real screen according to the state of the application program in the prior art.
FIG. 7A shows the real screen 11a in the end state of the application program. An image created by the mobile device program is displayed, and the background image is a “wallpaper” (hereinafter referred to as “native wallpaper”) preset in the mobile device.
FIG. 7B shows a real screen 11b in the activated state of the application program. An image created by the application program is displayed. The above-mentioned “native wallpaper” is not displayed.
FIG. 7C shows a real screen 81 in a pause state of the application program. Similar to FIG. 7A, an image created by the mobile device program is displayed.
When a factor for restarting the application program occurs from the paused state, the screen returns to the real screen 11b shown in FIG.
[0005]
  The application program for displaying the standby screen described above is mainly intended to reflect the user's preference and personality in the “standby screen”. For example, a moving image of a specific character preferred by the user is displayed. However, during a pause,Standby screen display applicationSince the image created by the program is not displayed and the “standby screen” created by the mobile device program is displayed, the screen is not necessarily unified with a specific character.
  As a result, the view of the world created by the application program for displaying the standby screen is broken, and the intention to use this application program is not reflected.
[0006]
The standby mode is indispensable for the standby screen display application program, and the pause mode is indispensable because it is necessary to coexist with the communication function of telephone and e-mail.
Therefore, an image created by the application program for displaying the standby screen may be displayed on the actual screen even when paused. However, due to the independence between the application program and the mobile device program (native environment), such a display cannot be performed with a conventional mobile device.
Even if the application program is not intended for the standby screen display, the image created by the mobile device program is displayed when it is paused, giving the user the impression that the application program has ended. There is an inconvenience of giving.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described circumstances, and can display an image intended by the application program even when the application program is paused. For example, the apparent operating state and world view of the application program can be continued. It is an object of the present invention to provide a communication device that can be used.
[0008]
[Means for Solving the Problems]
  The present invention is the communication device according to the first aspect, in which the application program is mounted on the platform of the communication device, and the display device displays an image.Image storage means for storing a second background image set on the platform side of the communication device;An application program execution control means having at least a function of controlling start, pause, restart, and termination of the application program; andAs background for the incoming call waiting screenWhen the application program is activated by the background image storage means for storing the background image to be displayed and the execution control means of the application program, the display unit displays the first image created by the application program. The display device displays a second image having a background image stored in the background image storage means as a background during at least a part of a period in which the application program is temporarily stopped by the execution control means of the application program. When the application program is activated by the image switching means to be displayed on the screen and the execution control means of the application program,When there is a setting request by the application program,Created by the application programBeforeNo. related to the first image1ofbackgroundimage,Is set in the background image storage meansWhen the application program is terminated by the execution control unit of the application program, the second background image stored in the image storage unit is set in the background image storage unit.Has background image setting means
Is.
  Where1ofbackgroundThe image may be an image at a certain timing of the first image that continues to change, or may be an image that is related to the first image but created separately from the first image. .
  Therefore, even when the application program is paused, an image created by the application program and intended by the application program can be displayed as a background image.
  First1ofbackgroundBecause the image is displayed as a background image, even if the mobile program displays some information while the application program is paused,1ofbackgroundImages can be displayed as much as possible.
  As a result, the application program can be kept in an apparent operation continuation state during at least a part of the paused state, and the world view of the application program can be continued.
[0009]
  AlsoWhen the application program is terminated, the “wallpaper” created by the application program is discarded, so that the world view of the application program can be erased and the copyrighted image remains on the mobile device. Can be prevented.
[0010]
  FurthermoreThe application program is related to the first image and is used as a background image in at least a part of the paused period at an arbitrary timing during startup.1ofbackgroundImages can be set.
[0011]
  Claim2In the invention described in claim 1,1In the communication device described in the above, when the application program is activated by the execution control unit of the application program and the release request is issued by the application program, the background image setting unit stores the image in the image storage unit. The second2ofbackgroundAn image is set in the background image storage means.
  Therefore, the application program sets the background image as a background image in at least a part of the paused period at an arbitrary timing during startup.2ofbackgroundSet the image and1ofbackgroundThe image can be discarded.
[0012]
  Claim3In the described invention, the claim 1Or 2The communication device according to claim 1, further comprising a virtual screen area storage buffer, wherein the execution control means of the application program includes the first image and the first image.1ofbackgroundEach image is supplied from the application program to the image switching unit and the background image setting unit via the virtual screen area storage buffer, and the background image setting unit receives a setting request from the application program. The image held in the virtual screen area storage buffer is1ofbackgroundThis is set in the background image storage means as an image.
  Therefore, the image created by the application program can be set as the background image of the image created by the mobile device program in the virtual screen area while maintaining the independent configuration between the application program and the mobile device program. As a result, the interface between the application program and the mobile device program does not need to be significantly changed from the conventional one.
[0013]
According to a fourth aspect of the present invention, in the communication device according to any one of the first to third aspects, the application program is an application program for displaying an incoming call waiting screen on a display unit during an incoming call waiting period. is there.
  Claim5In the invention described in claim 1,4In the communication device according to any one of the above, the execution control means of the application program is realized by an application execution environment mounted on a platform of the communication device.
  Therefore, independently of the basic functions of the communication device, it is possible to easily incorporate or remove the application program later according to the user's preference. As a result, the world view realized by the application program can be freely set and changed according to the user's preference.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  FIG. 1 is a functional configuration diagram showing an embodiment of the present invention. This is a mobile device in which an application program is mounted on a platform of a communication device, and an image created by an application program such as a Java (TM) application program or a mobile device program is displayed on a display device.
  In the figure, reference numeral 1 denotes an image storage unit which is preset in the mobile device.2ofbackgroundThe image is stored as a background image “native wallpaper”.
  An application program 2 has a display image creation function and a display image provision function for creating and providing an image to be displayed on the display 8 described later. During the activation, the first image displayed on the display 8 and the first image related to the first image are displayed.1ofbackgroundCreate an image as a background image "application wallpaper".
  An application program execution control unit 3 has functions for controlling activation, suspension, resumption, and termination of the application program 2, and an image from the application program 2 is input to a background image setting unit 4 and image switching described later. It has a function of supplying to the platform side such as the unit 6. The application program execution control unit 3 is realized by an application execution environment.
  The native execution control unit 9 performs execution control on the platform side. When the application program execution control unit 3 is notified of, for example, pause or end, the background image setting unit 4 and The image switching unit 6 is controlled. The function of the native execution control unit 9 is realized by a native environment.
  Factors for performing these execution controls may be in the mobile device program as well as in the application program 2 side.
[0015]
  A background image setting unit 4 is created by the application program 2 under the control of the native execution control unit 9 when the application program 2 is activated by the execution control unit 3 of the application program. The first image related to the first image supplied via the unit 3 and displayed on the display 8 described above.1ofbackgroundThe image is set as “application wallpaper” in the background image storage unit 5 described later.
  As a specific example, when there is a request for setting a background image from the application program 2 via the execution control unit 3 and the native execution control unit 9 of the application program,1ofbackgroundWhen an image is set in the background image storage unit 5 and a background image release request is made, the second image stored in the image storage unit 1 is stored.2ofbackgroundThe image is set in the background image storage unit 5.
  On the other hand, when the application program 2 is completed by the execution control unit 3 of the application program, the “native wallpaper” stored in the image storage unit 1 is set in the background image storage unit 5 by the native execution control unit 9.
  When the application program 2 is activated by the application program execution control unit 3, the image switching unit 6 is created by the application program 2 under the control of the native execution control unit 9 and passes through the application program execution control unit 3. The first image supplied in this way is output to the video memory 7, and at least during a period during which the application program 2 is temporarily stopped by the execution control unit 3 of the application program, the native execution control unit 9 Under the control, a second image having the image stored in the background image storage unit 5 as a background image is output to the video memory 7.
  The video memory 7 stores the input image as a real screen and displays it on the display 8.
[0016]
FIG. 2 is an explanatory diagram showing changes in the real screen depending on the state of the application program in the embodiment shown in FIG.
The application program execution control unit 3 is realized by an application execution environment implemented on the platform of the mobile device.
The application program is paused by a user operation pause request, a pause request for a resident application program when another application program is started by a timer, or when there is no key operation for a certain period of time, There are various factors, such as when the case is folded, when the user responds to an incoming event, and it depends on the model or varies depending on the user's settings.
The resume from the paused state is performed, for example, in the case of a user's release operation, when another application program is finished, or when an incoming event response process is finished.
[0017]
In the end state of the application program 2 shown in FIG. 2 (a), the same real screen 11a as in FIG. 7 (a) is displayed, and “native wallpaper” preset by the mobile device program is displayed in the background. The
In the activated state of the application program 2 shown in FIG. 2B, the actual screen 11b created by the application program 2 is displayed as in FIG. 7B.
In the temporary stop state of the application program shown in FIG. 2C, a real screen 11c different from the real screen 11a in FIG. 7C is displayed. That is, the “application wallpaper” stored in the background image storage unit 5 is displayed on the real screen 11 c under the control of the image switching unit 6.
Therefore, even when the application program 2 is in a paused state, a screen intended by the application program 2 can be displayed on the display device 8, so that the world view of the standby screen display application program can be maintained.
When a cause for restarting the application program occurs, the screen returns to the real screen 11b shown in FIG.
When an application program termination factor occurs, the background image is returned to the “native wallpaper” as shown in the real screen 11a shown in FIG.
[0018]
  The image switching unit 6 described above performs switching so that the image created by the mobile device program, FIG. 2C, is actually output to the video memory 7 in the pause state of the application program 2. At that time, since the image stored in the background image storage unit 5 is used as the background portion, the “application wallpaper” created by the application program 2 is displayed.
  When a normal “standby screen” created on the mobile device program side is displayed at the time of suspension, a background image is displayed. Other information such as a clock or calendar may be displayed in front of this background image..
  However, even in the paused state, when a call or e-mail is received, a period during which a notification screen (inquiry screen for users) is displayed, the user makes a call in response to the call, e-mail The background image may not be displayed during a period when the user is reading. Therefore, “application wallpaper” is not always displayed in the paused state.
[0019]
The actual screens 11a to 11c displayed on the display device have been described as one screen as a whole. However, in an actual mobile device, there is a pictogram area used for power status, radio wave status, incoming call notification, etc. at the top of the display screen, and softkey display area at the bottom of the display screen. Both are managed by the mobile device program (native environment). Therefore, an image generated by the application program is displayed in an area between the two.
On the other hand, depending on the model of the mobile device, the “wallpaper” set in advance on the mobile device side may be displayed including the upper and lower portions of the display screen described above. In this case, the display of the above-described power state, soft key, etc. is superimposed on the front surface of “wallpaper”.
[0020]
FIG. 3 is a block diagram showing a hardware configuration of the mobile device according to the embodiment of the present invention.
In the figure, 21 is a CPU (Central Processing Unit) that controls the entire mobile device. A storage unit 22 includes a nonvolatile memory such as a ROM and a flash memory, and a volatile memory such as a DRAM. Various control programs such as a real-time operating system and a native application program, a Java (TM) execution environment program, a Java (TM) Stores application programs and various data.
Reference numeral 23 denotes a display unit including the display 8, and 24 denotes a key input unit.
Reference numeral 25 denotes an antenna. A receiving unit 26 includes a high frequency amplifier, a mixer, an intermediate frequency amplifier, a demodulator, and the like. Reference numeral 27 denotes a transmission unit, which includes a modulator, a mixer, a power amplification unit, and the like. A frequency synthesizer 28 supplies a high-frequency oscillation signal to the mixer of the receiving unit 26 and the transmitting unit 27. A signal processing unit 29 performs audio signal processing and the like. Reference numeral 30 denotes a receiving microphone, and reference numeral 31 denotes a transmitting speaker.
[0021]
In this embodiment, a Java ™ application program can be executed by mounting a Java ™ VM (Virtual Machine) environment on a mobile device having the above-described hardware configuration.
FIG. 4 is a schematic diagram of the software structure of the mobile device 41 that supports the Java (TM) application having the Java (TM) VM function.
A Java (TM) execution environment 43 is mounted on the mobile device platform 42. Then, the Java ™ application program 44 is executed. On the other hand, on the mobile device platform 42, various functions such as mail, web browser, background image setting, etc. using hardware machine language (native code) without using byte codes for Java (TM) virtual machines. A native application program 45 that implements the above is also implemented.
Mobile station platform 42 includes mobile station hardware, a real-time operating system, and device drivers / protocol stacks.
The mobile station platform 42 and the native application program 45 constitute a native environment, and are collectively referred to as a mobile station program in this specification.
[0022]
The Java ™ application execution environment 43 is located in the middleware of the software structure of the mobile device 41 corresponding to the Java ™ application, and is necessary for the execution and management of the upper Java ™ application program and the lower mobile device program. Library and program. Here, Java (TM) 2 Platform Micro Edition (J2ME) for embedded devices is adopted.
The basic part includes a CLDC (Connected, Limited Device Configuration) part, a class library part, and an application management (AM) part.
The CLDC part consists of a virtual machine KVM and a CLDC standard library, and has an execution environment management library specialized for incorporation into the mobile platform.
In the class library section, an extended class library is added to MIDP (Mobile Information Device Profile) which is a standard profile for mobile phones.
An application manager belonging to the application management (AM) unit has a Java ™ application program execution control function and a management function.
In order to use each of the libraries and programs described above, an application manager interface (API) is defined for each.
[0023]
FIG. 5 shows a path until an image created by the Java (TM) application program is displayed as a real screen on the display unit 23 in the mobile device described with reference to FIGS. It is explanatory drawing. In FIG. 5, the Java ™ application program is simply referred to as an application program.
The mobile device platform 42 includes a mobile device virtual screen area (off-screen buffer) 51 and a video memory 53. The mobile device virtual screen area 51 includes an application program area 51a and a mobile machine program area 51b. The video memory 53 stores an image corresponding to the real screen, and the areas 51a and 51b in the mobile device virtual screen area 51 are usually wider than the real screen.
[0024]
Initially, when the Java (TM) application program 44 is in an end state, an image is written into the mobile device program area 51b by the mobile device program, and then the real screen 11a in FIG. 53.
However, the mobile device program area 51b is not necessarily a single storage area. For example, a plurality of storage areas such as a background image storage area and an e-mail storage area may be provided.
However, finally, the image stored in each storage area is selected or superimposed (overlapped) and written on the mobile device program area 51b. Therefore, even if the background image is stored in the dedicated storage area, it will be displayed on the actual screen of the display unit unless the background image is selected and the image displayed on the front surface covers the entire background image. Will be.
Therefore, normally, the “native wallpaper” preset in the mobile device and stored in the image storage unit 52 is used as the background image of the mobile device program area 51b.
[0025]
When the Java (TM) application program 44 is in an activated state, an image created by the Java (TM) application program 44 is displayed for the application program in the mobile device virtual screen area 51 by the Java (TM) application execution environment 43. It is written in the area 51a. The mobile device platform 42 cuts out the real screen 11b of FIG. 2B from the image written in the application program area 51a and transfers it to the video memory 53.
At the same time, when the Java ™ application execution environment 43 receives a “wallpaper setting request” from the Java ™ application program 44, the image “application wallpaper” stored in the application program area 51a at this time is transferred to the mobile device. In order to be written as a background image of the program area 51b, for example, it is transferred to the storage area for the background image.
[0026]
In other words, by passing the image generated and provided by the Java (TM) application program from the virtual screen area for the Java (TM) application in which this image is written to the background image area of the virtual screen for the mobile device program Forcibly change the background image of the mobile device.
Here, the image stored in the application program area 51a as the “application wallpaper” by the Java ™ application program 44 is not necessarily an actual screen (usually a change) displayed during the execution of the Java ™ application program 44. Is not necessarily the image itself at a certain timing.
More specifically, the “application wallpaper” is not necessarily a real screen image when the “wallpaper setting request” is made.
Although there is a content relevance to the actual screen image displayed on the display device, a separate “application wallpaper” is created and temporarily stored in the application program area 51a. It may be set in the program area 51b.
Thus, the application program is created by the interface between the application program area 51a and the mobile station program area 51b in the mobile station virtual screen area 51 while maintaining an independent structure between the application program and the mobile station program. This image can be set as the background image of the image created by the mobile device program.
[0027]
When the Java ™ application program 44 is temporarily stopped, the mobile device platform 42 cuts out a part of the image written in the mobile device program area 51 b as a real screen and transfers it to the video memory 53.
As a result, as shown in FIG. 2C, the video memory 53 is an image created by the mobile device program, but the background image is the same as the image created by the Java (TM) application program 44. Become. That is, even when the Java (TM) application program is paused, the image provided from the Java (TM) application program can be displayed on the real screen.
[0028]
When the Java (TM) application program 44 is terminated, the mobile device program sets the “native wallpaper” stored in the image storage unit 52 as the background image region of the mobile device program region 51b. Restore the background image.
On the other hand, the Java ™ application program 44 can make a “wallpaper release request” after making a “wallpaper setting request” to the Java ™ application execution environment 43 during the startup. If there is a “wallpaper release request”, the Java (TM) application execution environment 43 gives the mobile device program the same as when the Java (TM) application program 44 described above is terminated, as stored in the image storage unit 52. The background image is restored by setting “native wallpaper” in the background image area of the mobile device program area 51b.
Therefore, when the Java (TM) application program ends or when a cancellation request is received, the mobile device program returns the background image to the `` native wallpaper '' preset for the mobile device and displays the actual screen as a video. The data is transferred to the memory 53 and displayed on the display.
[0029]
FIG. 6 shows an operation in which the Java (TM) application execution environment 43 causes the mobile device platform 42 to switch between “native wallpaper” and “application wallpaper” in the mobile device described with reference to FIGS. 3 and 4. It is a flowchart which shows an example.
Description of other processes executed by the Java ™ application execution environment 43 is omitted. Here, “background image” is abbreviated as “wallpaper”.
First, it is assumed that the Java (TM) application program is in an end state. In the initial state of the mobile device, a real screen 11a having “wallpaper” preset on the mobile device is displayed.
Here, some activation factor (for example, the user selects one while looking at the library of the Java ™ application program displayed on the menu screen) occurs.
[0030]
  In S61, the Java ™ application execution environment performs a starting process such as loading a Java ™ application program on the Java ™ VM.
  In S62, the Java (TM) activation state (Active state) is entered, and the Java (TM) compatible mobile device is under the control of the Java (TM) execution environment.
  In S63, the Java ™ application execution environment 43 determines whether or not there is a “wallpaper setting request” from the Java ™ application program. If so, the process proceeds to S64, and if not, the process proceeds to S65.
  In S64, the wallpaper data is passed to the mobile device program. In the mobile device program, the wallpaper data is written in the background image area of the mobile device program area 51b (FIG. 5).
  In S66, it is determined whether or not there is a “wallpaper release request”.8If the process proceeds to S67Proceed with the process.
  In S68, the mobile device that has received the “wallpaper release request” from the Java ™ application program via the Java ™ application execution environment uses the “native wallpaper” set in the mobile device as the mobile device application area 51b. Write to the background image area belonging to (FIG. 5). As a result, the “application wallpaper” is discarded and replaced with “native wallpaper”. When the processing of S68 is completed, the processing is returned to the initial activation state shown in S62.
[0031]
On the other hand, in S67, the Java (TM) application execution environment determines whether there is a “pause request” from the Java (TM) application program or the mobile device program. Performs program pause processing. The Java (TM) application execution environment transitions to the paused state, and the real screen 11c having the “application wallpaper” specified by the Java (TM) application program is displayed.
If there is no “pause request” in S67, the process further proceeds to S70, where it is determined whether or not there is an “end request” from the Java ™ application program or mobile device program. The Java (TM) application program is terminated, and the Java (TM) application execution environment transitions to the terminated state.
In S73, the mobile device program receives the end state of the Java (TM) application execution environment, and uses the “native wallpaper” preset in the mobile device in the background image region of the mobile device program area 51b (FIG. 5). Write. That is, the “application wallpaper” is discarded and replaced with “native wallpaper”. As a result, the real screen 11a shown in FIG. 2A having the “native wallpaper” preset on the mobile device is displayed on the display.
[0032]
If there is no “end request” in S70, the process further proceeds to S72, and the Java (TM) application execution environment determines whether there is a “wallpaper setting request” from the Java (TM) application. If the process does not proceed, the process returns to the “wallpaper release request” presence / absence determination in S66.
In S74, the Java ™ application execution environment passes the background image data newly created by the Java ™ application to the mobile device program. The mobile device program performs a process of writing this wallpaper data in the background image area of the mobile device program area 51b (FIG. 5). Thereafter, the process returns to the “wallpaper release request” determination in S66.
[0033]
The process proceeds when there is no “wallpaper setting request” in S63. In S65, it is determined whether or not there is a “pause request” from the Java (TM) application program or the mobile device program. The process proceeds to S75, and the Java (TM) application program is paused. The Java (TM) application execution environment transitions to a paused state, and a real screen 11a (FIG. 2) having a “native wallpaper” preset on the mobile device is displayed.
In S65, if there is no “pause request”, the process further proceeds to S76 to determine whether or not there is an “end request” from the Java ™ application program or mobile device program. If there is an “end request”, the process proceeds to S77 and the end process is performed. The Java (TM) application execution environment transitions to the end state, and a real screen 11a (FIG. 2) having a “native wallpaper” preset in the mobile device is displayed. On the other hand, if there is no “end request”, the process returns to the activated state in S62.
[0034]
In the suspension processing in S69 and S75 described above, the Java (TM) application execution environment executes the application program while holding the object held by the running Java (TM) application program in the volatile storage area. Stop and transfer control to the mobile program.
When a Java (TM) application execution environment is in a paused state (Paused) in S69 or S75, a restart process is performed when a restart factor occurs.
At the time of resumption, execution of the Java (TM) application program is resumed using the object held by the suspension, and thereafter, the process proceeds to S62 as in the activated state.
On the other hand, in the termination process in S73 or S77, the mobile station program acquires control after performing termination processes such as releasing resources of the application program.
When a new activation factor occurs when the Java ™ application execution environment has been terminated by S71 or S77, the activation process similar to S61 is performed, and the process proceeds to S62.
[0035]
As can be seen from the flowchart described above, the Java (TM) application program 44 creates a new “application wallpaper” along with the “wallpaper setting request” at any time and at any time during startup. It can be provided to the application execution environment, and each time the mobile device program can set a new “application wallpaper”. When the setting is repeated, the previous “wallpaper” is overwritten and discarded.
In addition, if it is running, a “wallpaper release request” can be made to the Java ™ application execution environment any number of times at any time, and it can be returned to “native wallpaper”.
[0036]
In the above description, the Java (TM) application program for displaying the standby screen set to be resident has been described. However, even if the Java (TM) application program is not set to be resident, the background image intended by the Java (TM) application program can be set when the program is paused. As a result, it is possible to give the user the impression that this Java (TM) application program is apparently continuing its operation.
In the above description, an image displayed on one main display has been described. However, some foldable mobile devices have a sub-display on the rear surface of the housing that can be seen even in a folded state. When the case is folded, the sub display can display an image such as a “standby screen” by the Java ™ application program in addition to the image display by the mobile device program. At this time, the Java (TM) application program can be started, paused, resumed, and terminated even when the casing is folded.
Therefore, similarly, an image created by a Java (TM) application program can be displayed as a background image even when the Java (TM) application program is suspended and under the control of the mobile device program. it can.
In addition, in a state where the housing is opened, the Java (TM) application program may display an image on not only the main display but also the sub display.
[0037]
In the above description, a mobile phone compatible with a Java ™ application program has been described as an example. However, even if it is not a Java (TM) application program, it is a communication device that displays an image provided by the application program on the display unit, and if it controls the activation, suspension, etc. of this application program, this The invention can be applied, and the same effects can be obtained.
Specifically, it can be applied to portable devices such as PDA (Personal Digital Assistant) terminals, fixed telephones equipped with a display, and information home appliances such as digital television equipped with a communication function.
In particular, an application program execution environment is implemented on the platform of the communication device, an application program such as Java (TM) is executed on the execution environment of the application program, and the start and suspension of the application program are controlled. The present invention can be applied to various communication devices.
[0038]
【The invention's effect】
As is apparent from the above description, according to the present invention, there is an effect that an image intended by an application can be displayed even in a paused state of the application program.
As a result, even when the application program is paused, it appears to the user that the operation of the application continues.
Therefore, the application program can provide image information to the user even in the paused state, in addition to not giving the impression that the application program has ended apparently in the paused state.
As a result, by devising the contents to be displayed, the range of expression of the application program can be widened.
In particular, since the world view of the application is maintained even in the paused state, the attractiveness of using the application program for displaying the standby screen can be enhanced.
[Brief description of the drawings]
FIG. 1 is a functional configuration diagram showing a first embodiment of the present invention.
FIG. 2 is an explanatory diagram showing changes in the real screen depending on the state of an application program in the embodiment shown in FIG. 1;
FIG. 3 is a block diagram showing a hardware configuration of a mobile device according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of a software structure of an application-compatible mobile device having a virtual machine function.
FIG. 5 is an explanatory diagram showing a route until an image created by an application program is displayed as a real screen on a display device in the mobile device described with reference to FIGS. 3 and 4;
6 is a flowchart showing an example of an operation in which the application execution environment causes the mobile device program to switch between “native wallpaper” and “application wallpaper” in the mobile device described with reference to FIGS. 3 and 4. FIG. is there.
FIG. 7 is an explanatory diagram showing a change in a real screen according to a state of an application program in the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Image storage part, 2 ... Application program, 3 ... Application program execution control part, 4 ... Background image setting part, 5 ... Background image storage part, 6 ... Image switching part, 7 ... Video memory (actual screen), 8 ... Display, 11a to 11c ... Real screen

Claims (5)

An application program is installed on the communication device platform, and the display device displays an image.
Image storage means for storing a second background image set on the platform side of the communication device;
An execution control means for an application program having at least a function of controlling activation, suspension, resumption, and termination of the application program;
Background image storage means for storing a background image to be displayed as a background of an incoming call waiting screen on the display;
When the application program is activated by the execution control means of the application program, the first image created by the application program is displayed on the display unit, and the application program is displayed by the execution control means of the application program. Image switching means for causing the display to display a second image with the background image stored in the background image storage means as a background during at least a part of the paused period;
When the application program is activated by the execution control unit of the application program, when a setting request by the application program, the first related to the first image is created and before SL by the application program set background image to the background image storage means, when said application program is terminated by the execution control means of the application program, the second background image stored in the image storage means in the background image storage means set to, background image setting means,
A communication device comprising: When the application program is activated by the execution control unit of the application program and the release request is issued by the application program, the background image setting unit stores the second background image stored in the image storage unit. Is set in the background image storage means,
The communication device according to claim 1 . A virtual screen area storage buffer;
The application program execution control means sends the first image and the first background image to the image switching means and the background image setting means from the application program via the virtual screen area storage buffer, respectively. Supply
The background image setting means sets the image held in the virtual screen area storage buffer as the first background image in the background image storage means when there is a setting request by the application program.
Communication device according to claim 1 or 2, characterized in that.   The application program is an application program that displays an incoming call waiting screen on a display unit during an incoming call waiting period.
  The communication device according to any one of claims 1 to 3, wherein The application program execution control means is realized by an application execution environment implemented on a platform of a communication device.
The communication device according to any one of claims 1 to 4 , wherein the communication device is characterized in that:

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