KR20020009684A - System for providing a virtual screen on a mobile phone - Google Patents

Abstract

PURPOSE: A system for producing a virtual screen of a radio mobile communication terminal is provided to divide a video memory region of a radio mobile terminal having a multi-tasking environment capable of simultaneously executing multiple programs and to shift an image corresponding to a divided memory region. CONSTITUTION: A system for producing a virtual screen of a radio mobile communication terminal includes a key input unit(100) having a shift key for shifting an image displayed on the terminal, and a memory(106) to which a predetermined number of video memory regions is allocated. The system further has a display(108) for displaying an image corresponding to each memory region, and a controller(102) for shifting an image to one of the video memory regions, corresponding to an image shift key signal of the key input unit, to display the image.

Description

System for implementing virtual screen of wireless mobile terminal {SYSTEM FOR PROVIDING A VIRTUAL SCREEN ON A MOBILE PHONE}

The present invention relates to a display implementation method of a wireless mobile communication terminal, and more particularly, to a virtual screen implementation system of a wireless mobile communication terminal.

The display means provided in a typical wireless mobile communication terminal, such as a PDA or a mobile phone, may be configured with an LCD or the like. The display means may provide various services such as a short message service or an Internet service to a user. . In addition, the current wireless mobile communication service usually implements text-oriented services. However, due to the recent development of electronic communication, IMT-2000 can download or execute image files such as GIF and JPEG on the terminal in the future. It is expected to be.

In order to receive various wireless data services applied to multimedia such as IMT-2000, a part to be added in hardware, for example, a wider display means is required. In other words, the current limited display window is insufficient to accommodate a wireless data service that provides various image files. Therefore, there is a need to expand the display window. However, in view of the size of the terminal to expand the display window, there are some limitations, it is expected that there will be a lot of obstacles in providing the service.

The present applicant has focused on the fact that if a mobile terminal adopts a terminal virtual screen that is currently applied in a commercial operating system, for example, UNIX, it can provide a user with a service that does not consider the limitation of the terminal screen size.

Accordingly, the present invention devised in view of the above-described point, and divides the video memory area of the wireless mobile communication terminal having a multitasking environment that can execute a plurality of programs at the same time, the image corresponding to the divided memory area It is an object of the present invention to provide a system for implementing a virtual screen of a wireless mobile communication terminal capable of shifting.

In order to achieve the above object, the present invention provides a system for implementing a virtual screen of a wireless mobile communication terminal having a multitasking environment capable of simultaneously executing a plurality of programs, the shift key for shifting an image displayed on the terminal. Key input means provided; Memory means allocated with a predetermined number of video memory areas; Display means for displaying an image corresponding to each memory area of the memory means; Control means for controlling to display by shifting to one memory area of the plurality of video memory areas assigned to the memory means in response to the image shift key signal of the key input means, the virtual screen implementation system of the wireless mobile communication terminal To provide.

1 is a schematic system block diagram of a wireless mobile communication terminal for implementing a virtual screen according to a preferred embodiment of the present invention;

FIG. 2 is a view showing a video memory area resident on the memory unit of FIG.

3 illustrates a screen area displayed on the display unit of FIG. 1. FIG.

<Explanation of symbols for the main parts of the drawings>

100: key input unit

102: control unit

104: transmitting / receiving unit

106: memory unit

108: display unit

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Prior to the description, the mobile communication terminal according to the present invention has an operating system supporting multitasking or multithreading capable of executing a plurality of programs simultaneously, and displaying the plurality of programs in separate continuous screens. It is characterized by that it can output. In addition, the mobile communication terminal according to the present invention is characterized in that it is particularly applicable to multimedia such as IMT-2000.

1 is a schematic system block diagram of a wireless mobile communication terminal for implementing a virtual screen according to a preferred embodiment of the present invention, which includes a key input unit 100, a control unit 102, a transmitter / receiver unit 104, and a memory unit 106. ) And the display unit 108.

As shown, the key input unit 100 is a key input means provided on the mobile communication terminal, and generates a predetermined key signal by the user's input action. The key input unit 100 may include a shift key (not shown) for shifting an image displayed on the mobile communication terminal to move the screen. That is, the key input unit 100 is used as a means for moving a plurality of consecutive video screens displayed on the wireless mobile communication terminal according to the present invention.

The transmitting / receiving unit 104 receives wireless data from a server through a base station (not shown) or outputs user information data generated at a terminal. Since the transmitter / receiver 104 is the same as that provided in a general mobile communication terminal, a detailed description thereof will be omitted.

The memory unit 106 is a memory means provided in the mobile communication terminal, for example, RAM, which forms respective video memory areas necessary for display on the terminal screen. This video memory area is shown in FIG. As shown in Fig. 2, in the present embodiment, four video memory areas are taken as an example, but less or more video memory areas may be adopted as necessary, which is common in the art. Those who have knowledge will easily know.

The display unit 108 may be configured as display means for displaying an image corresponding to each video memory area of the memory unit 106 described above, for example, an LCD. The screen area displayed through the display unit 108 is illustrated in FIG. 3 and moves to the screen areas of screens # 1, # 2, screen # 3, and screen # 4 according to the key signal of the key input unit 100. FIG. Can be. For example, screen # 1 may allow other programs, such as games, to be enjoyed on screen # 2 while checking stock information.

The control unit 102 according to the present invention is one memory area of the plurality of video memory areas allocated to the memory unit 106 in response to the image shift key signal of the key input unit 100 described above, for example, screen # 1. The memory unit 106 and the display unit 108 are respectively controlled so that they can be displayed by shifting from the area to the screen # 2 area.

As described above, the present invention is implemented so that the output screen of the other running program can be selected and confirmed as the display screen of the wireless mobile communication terminal of the general standard.

Accordingly, the present invention can be confirmed while shifting a plurality of program output screens that are being executed, and thus, it is possible not only to smoothly accommodate various wireless data services provided by a terminal such as IMT-2000 in the future, but also to provide better service benefits to users. It has the effect of increasing sales.

Claims (1)

In a virtual screen implementation system of a wireless mobile communication terminal having a multi-tasking environment that can execute a plurality of programs at the same time, Key input means having a shift key for shifting an image displayed on the terminal; Memory means allocated with a predetermined number of video memory areas; Display means for displaying an image corresponding to each memory area of said memory means; And a control means for controlling the display to shift to one memory area among a plurality of video memory areas allocated to the memory means in response to the image shift key signal of the key input means. Implementation system.