KR101012214B1 - Method and system for providing web service in mobile communication unit - Google Patents

Abstract

The present invention provides a compressed image by requesting a browser server to provide a desired web page according to a user's selection input, receiving a compressed image to enable interlacing and progressive rendering of the web page provided by the browser server. A mobile communication terminal that extends and displays the stretched image; When a web page request is received from the mobile communication terminal, the web browser is executed, the web page of the web server is accessed, the rendered web page is rendered, and the resulting image is compressed for interlacing and progressive rendering. A web service providing system of a mobile communication terminal having a browser server for transmitting to a mobile communication terminal and a web service providing method of a mobile communication terminal implemented in the system.

Description

Method and system for providing web service of mobile communication terminal {Method and system for providing web service in mobile communication unit}

The present invention relates to a method and a system for providing a web service of a mobile communication terminal. More specifically, the present invention relates to a mobile communication terminal through an interlacing method, a progressive rendering method, and a dynamic region update method. A method and system for providing a web service.

Recently, with the development of wireless internet technology, mobile communication terminals such as mobile phones can be provided with web services. As such, the currently available mobile Internet web browser technology is largely divided into two ways.

First, parse and download html, css, image files, etc. in the same way as a general personal computer, and then go through a full-browsing method that directly renders the screen and parses and renders them on the server. There is a web viewer (web viewer) method of transmitting.

Since the web viewer method does not handle complex parsing and rendering processes in the mobile terminal, the initial loading speed is in the spotlight. However, in the case of the conventional web viewer method, there is a problem that there are many unnecessary image transmissions because the thumbnail and chunk images are separated and unnecessarily large because the images are compared in units of chucks. There is a problem that the image is transmitted.

That is, in the conventional web viewer method, as shown in FIG. 1, when the mobile communication terminal 2 requests a desired web page, the browser server 1 captures an image for the web page and has a small thumbnail. The image is transmitted, and the mobile communication terminal 2 displays the received thumbnail image on the screen. Accordingly, the user can recognize the approximate screen. Then, while the user is viewing the thumbnail image, the browser server 1 captures and sends each chunked image (blocked image in dashed line in FIG. 2) for the web page as shown in FIG. After receiving the chuck image, the communication terminal 2 combines the chuck images and displays them on the screen. Accordingly, the user can see a clear screen.

Therefore, two separate files, that is, a thumbnail file and a chuck image file, must be transmitted from the browser server 1 to the mobile communication terminal 2, thereby increasing the amount of image transmission, and the user can only use a very blurry thumbnail image and a clear chuck image. The problem is that only two steps are visible.

Also, in the related art, after the chuck image is transmitted from the browser server 1 as shown in FIG. 2 and displayed on the screen of the mobile communication terminal 2, the mobile communication terminal 2 shows the chuck image as viewed by the user as shown in FIG. Asks the browser server 1 if has changed. Accordingly, the browser server 1 captures an image of the web page again and transmits the changed chuck image to the mobile communication terminal 2 when the chuck image is different from the previous image as shown in FIG.

Therefore, since the comparison of the changed image with respect to the web page is made in the browser server 1, the mobile communication terminal 2 has a hassle to inquire the browser server 1 whether the chuck image has changed. In addition, since the browser server 1 transmits the changed image in units of chuck images, there is a problem that an image larger than the actual changed image is transmitted.

The present invention has been invented to solve the above-mentioned conventional problems, and through the interlacing method and progressive rendering method to secure the same user convenience as the existing web viewer with one image instead of several images. It is an object of the present invention to provide a method and system for providing a web service of a mobile communication terminal capable of transmitting a smaller image than a conventional method by updating only a changing image region through a dynamic region update method. .

In order to achieve the above object, a web service providing system of a mobile communication terminal according to the present invention requests a browser server to provide a desired web page according to a user's selection input, and provides a web page provided by the browser server. A mobile communication terminal which receives the compressed image to enable interlacing and progressive rendering, expands the compressed image and displays the stretched image; When a web page request is received from the mobile communication terminal, the web browser is executed, the web page of the web server is accessed, the rendered web page is rendered, and the resulting image is compressed for interlacing and progressive rendering. And a browser server for transmitting to a mobile communication terminal.

Here, the mobile communication terminal periodically provides the display screen area information of the web page displayed on the display unit and the position information of the cursor to the browser server; When the browser server receives the cursor position information and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen, and then compares the previous web page image with the latest web page image to check whether there is an area where the image has changed. And transmits an image of the changed area and its location information to the mobile communication terminal. The mobile communication terminal updates and displays the web page displayed on the display unit by replacing the existing image with the change region image based on the position information of the image of the changed region when the image and the position information of the changed region are provided in the browser server. It is desirable to.

When the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen, sets an image comparison area larger than the display screen area of the mobile communication terminal, and displays the previous web page image. And the recent web page image, check whether there is an area where the image has changed in the image comparison area, and transmit the image and the location information of the changed area to the mobile communication terminal.

When the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen and sets an image comparison area larger than the display screen area of the mobile communication terminal. Set the comparison area by moving the cursor toward the direction of movement of the cursor, check whether there is an area where the image has changed within the set image comparison area with respect to the previous webpage image and the latest webpage image, and display the image and the position information of the changed area. It may be transmitted to the mobile communication terminal.

In order to achieve the above object, a web service providing method of a mobile communication terminal according to the present invention includes a first step of requesting a browser server to provide a desired web page according to a user's selection input in a mobile communication terminal; When the browser server receives the web page request from the mobile terminal, it executes the web browser, accesses the web page of the web server, renders the received web page screen, and as a result, enables the interlacing and progressive rendering of the image. Compressing and transmitting the compressed data to the mobile communication terminal; And a third step of receiving the compressed image of the corresponding web page provided by the browser server in the mobile communication terminal, decompressing the compressed image, and displaying the expanded image by interlacing and progressive rendering.

According to an aspect of the present invention, there is provided a web service providing method of a mobile communication terminal, comprising: a fourth step of periodically providing display screen area information of a web page displayed on a display unit and position information of a cursor to a browser server in a mobile communication terminal; When the browser server receives the cursor position information and the display screen area information from the mobile communication terminal, image the latest web page screen, and then compare the previous web page image with the latest web page image to check whether there is an area where the image has changed. A fifth step of transmitting the image of the changed area and its location information to the mobile communication terminal; When the mobile communication terminal provides the image and the location information of the changed area in the browser server, the web page displayed on the display is updated by replacing the existing image with the changing area image based on the location information of the image of the changed area. It further comprises a sixth step.

Here, when the browser server receives the cursor position information and the display screen area information from the mobile communication terminal in the fifth step, image the latest web page screen and set an image comparison area larger than the display screen area of the mobile communication terminal. The previous web page image and the latest web page image may be checked whether there is an area where the image has changed in the image comparison area, and the image and the location information of the changed area may be transmitted to the mobile communication terminal.

In the fifth step, when the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, image the latest web page screen and set an image comparison area larger than the display screen area of the mobile communication terminal. Set the image comparison area by moving the cursor toward the direction of movement of the cursor, and check whether there is an area where the image has changed within the set image comparison area with respect to the previous web page image and the latest web page image, and the image and the position of the changed area. Information may be transmitted to the mobile communication terminal.

The position information of the cursor may be absolute coordinates of the cursor, and the display screen area information may be displayed as an upper left absolute coordinate and a lower right absolute coordinate, or an upper right absolute coordinate and a lower left absolute coordinate.

In addition, the location information of the changed region is preferably represented by the absolute position reference point of the changed image, the width of the changed image, and the height of the changed image. The absolute position reference point of the changed image may be any one of an upper left absolute coordinate, an upper right absolute coordinate, a lower left absolute coordinate, and a lower right absolute coordinate of the changed image.

According to the present invention configured as described above, the interlacing method and the progressive rendering method can reduce the amount of images transmitted while ensuring the same user convenience as the existing web viewer with one image instead of several images, and also dynamic By updating only the image area that is changed through the area update method, a smaller image can be transmitted than the existing method, thereby reducing the amount of transmitted images. This reduces traffic for the network and allows web pages to load faster at the user.

Hereinafter, a web service providing method and system of a mobile communication terminal according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a block diagram of a web page providing system of a mobile communication terminal according to a preferred embodiment of the present invention.

As shown in the figure, the web page providing system of the mobile communication terminal according to the present invention, the mobile communication terminal 10, the base station 20, the base station controller 30, the PSDN (Public Switched Data Network) (40) , A browser server 50, and Internet web servers 60_1 to 60_n; Here, since the base station 20, the base station controller 30, the PSDN 40 and the Internet web server (60_1 ~ 60_n) is a known configuration, description thereof will be omitted.

The mobile communication terminal 10 is a mobile communication terminal such as a mobile phone that allows a user to request a desired web page via the wireless Internet, receive a web page screen from the mobile communication network, and display it on a display of a small screen.

The mobile communication terminal 10 may be a portable communication, such as voice communication and data communication, such as wireless Internet, and can be portable, and the configuration thereof, as shown in Figure 2, the control unit 11, mobile The communication unit 12, the key input unit 13, the display unit 14, the memory unit 15, and the pointing unit 16 are included.

The key input unit 13 includes input keys for inputting numbers and letters, function keys for selecting a function, and cursor movement keys and cursors for moving a cursor displayed on a web page screen through wireless Internet. It is configured to include a cursor selection key for selecting. The key input unit 13 may further include a touch panel installed to overlap the display unit 14 to recognize a user's pressing operation.

The display unit 14 includes a liquid crystal display, for example, to display letters and numbers or to display a function menu screen under the control of the control unit 11, and to display a web page or the like through the wireless Internet.

The mobile communication unit 12 is a configuration for transmitting and receiving voice and data with a mobile communication network system, for example, code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), and WCDMA ( A communication channel is formed by a wideband code division multiple access, a wireless broadband method, and the like to communicate with a mobile communication network system.

The memory unit 15 stores programs for controlling a general operation of the mobile communication terminal, and temporarily stores data generated while executing the programs.

The pointing unit 16 checks the position of the cursor displayed on the display unit 14 when the web page via the wireless Internet is displayed on the display unit 14.

The control unit 11 controls to request a desired web page to the browser server 50 of the mobile communication network through the mobile communication unit 12 according to the user's selection, and the corresponding web provided from the browser server 50 of the mobile communication network. Receives a compressed image to enable interlacing and progressive rendering of the page, and expands the compressed image and controls the display unit 14 to display a clear screen gradually according to the transmission amount.

The controller 11 periodically checks the position of the cursor identified by the pointing unit 16 and the display screen area of the web page displayed on the display unit 14, and periodically checks the position information and the display screen area information of the cursor. It is provided to the browser server 50 of the mobile communication network. Accordingly, if there is an area changed in the corresponding display screen area, an image and location information of the area changed in the browser server 50 are provided, and accordingly, the control unit 11 is provided in the change area provided in the browser server 50. On the basis of the positional information of the image, the control unit is configured to update and display the web page displayed on the display unit 14 by replacing the existing image with the change region image.

On the other hand, when the browser server 50 receives a web page request from the mobile communication terminal 10, it executes a web browser, accesses the web page of the web server, renders the received web page screen, and then The resulting image is compressed to enable interlacing and progressive rendering, and then transmitted to the mobile communication terminal 10.

Here, the "progressive rendering" of the image is a technique for showing to the user as much as received without waiting until all the images are transmitted. Simple progressive rendering shows the image from top to bottom. Currently, it supports progressive rendering in a variety of image formats, including GIF, PNG, and JPEG2000. In addition, "interlacing" refers to storing an image so that a low resolution image is shown first and an increasingly high resolution image is displayed. Such a progressive rendering method can be transmitted as a single image file without a separate image file, and as the amount of images downloaded increases, a clear image is composed, so that a better screen can be shown to the user.

In addition, when the browser server 50 receives the cursor position information and the display screen area information from the mobile communication terminal 10, the browser server 50 accesses the web page of the corresponding web server again, images the received web page screen, and then transfers the image. The web page image is compared with the new web page image to check whether there is an area where the image has changed, and the image and location information of the changed area are extracted. Thereafter, the browser server 50 transmits the changed area image and its location information to the mobile communication terminal 10.

In addition, when the browser server 50 receives the cursor position information and the display screen area information from the mobile communication terminal 10, the browser server 50 accesses the web page of the corresponding web server again and images the received web page screen. As shown in FIG. 11, an image comparison area larger than the display screen area of the mobile communication terminal 10 is set, and whether there is an area where the image is changed in the image comparison area with respect to the previous web page image and the new web page image. For example, the image of the changed area and its location information may be extracted. Here, setting the image comparison area may reduce the load on the browser server for image comparison. In addition, the image comparison area is set larger than the area that the user is viewing, and compared and transmitted to the mobile communication terminal so that the user can see the recently changed image even if the user moves the screen at a predetermined level.

In addition, when the browser server 50 periodically receives the position information of the cursor and the display screen area information from the mobile communication terminal 10, the browser server 50 accesses the web page of the corresponding web server again and images the received web page screen. As shown in FIG. 12, an image comparison area larger than the display screen area of the mobile communication terminal 10 is set. In this case, the image comparison area is moved toward the direction of movement of the cursor, and the image is compared with the previous web page image and the new web page image. It may be checked whether there is an area where the image has changed in the comparison area, and an image and location information of the changed area may be extracted. Here, the movement direction of the cursor is detected by the browser server based on the position of the cursor periodically transmitted by the mobile communication terminal. When the cursor moves in a specific direction, there is a high probability that the cursor will move in that direction in the future, thereby moving the image comparison area in the direction in which the cursor moves. Moving the cursor quickly moves the image comparison area a lot, and moving it slowly moves it a little. After a certain period of time with the cursor still, the image comparison area does not move.

Here, the position information of the cursor is displayed in absolute coordinates of the cursor, and the display screen area information is displayed in upper left absolute coordinates and lower right absolute coordinates, or in upper right absolute coordinates and lower left absolute coordinates. That is, FIG. 10 is a view for explaining an example in which the display screen area information is displayed as the upper left absolute coordinate and the lower right absolute coordinate, where the absolute coordinate of the cursor is (490,460), and the upper left absolute coordinate is ( 320,200, and the lower right absolute coordinate is (670,580). Accordingly, the position information of the cursor and the display screen area information transmitted to the browser server become (320, 200, 670, 580, 490, 460).

In addition, the position information on the changed area may be displayed as an absolute position reference point, a width, and a height of the changed image. The absolute position reference point of the changed image may be any one of an upper left absolute coordinate, an upper right absolute coordinate, a lower left absolute coordinate, and a lower right absolute coordinate of the changed image. In the example of FIG. 9, the absolute position reference point of the changed image is indicated by (300,200), which is the upper left absolute coordinate of the changed image, and has a width of 400 and a height of 100. Accordingly, the location information on the changed area becomes (300, 200, 400, 100).

Next, the web service providing procedure of the mobile communication terminal according to the present invention will be described in detail with reference to FIG.

The mobile communication terminal 10 requests the browser server 50 to provide the desired web page requested by the user (step S1).

When the web server request is received from the mobile communication terminal 10, the browser server 50 executes a web browser, accesses a web page of the web server, renders the received web page screen, and then interlaces the resulting image. And compression to allow progressive rendering (step S2).

Thereafter, the browser server 50 transmits the compressed image to the corresponding mobile communication terminal 10 (step S3).

The mobile communication terminal 10 receives the compressed image to enable interlacing and progressive rendering of the web page, expands the compressed image, and displays a clear screen on the display unit gradually according to the transmission amount (step S4).

Thereafter, the mobile communication terminal 10 periodically checks the position of the cursor identified by the pointing unit and the display screen area of the corresponding web page displayed on the display unit, and periodically checks the position information of the cursor and the display screen area information of the browser server ( 50) (steps S5 to S6).

When the browser server 50 receives the cursor position information and the display screen area information from the mobile communication terminal 10, the browser server 50 accesses the web page of the corresponding web server again, images the received web page screen, and then transfers the previous web page. The image is compared with the new web page image to check whether there is an area where the image has changed, and the image and the location information of the changed area are extracted (step S7).

Thereafter, the browser server 50 transmits the changed area image and its location information to the mobile communication terminal 10 (step S8).

When the image and the location information of the changed area is provided by the browser server 50, the mobile communication terminal 10 based on the location information of the image of the change area provided by the browser server 50, the existing image Is replaced with the change area image to update and display the web page displayed on the display unit 14 (step S9).

As described above, according to the present invention, an interlacing method and a progressive rendering method can reduce the amount of images transmitted while ensuring the same user convenience as an existing web viewer with one image instead of several images, and also provide a dynamic range. By updating only the image area that is changed through the update method, a smaller image can be transmitted than the existing method, thereby reducing the amount of image transmitted. This reduces traffic for the network and allows web pages to load faster at the user.

Meanwhile, in the above embodiment, when the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, the browser server accesses the web server to receive the web page and image the web page. Although the image was compared with the new web page image, it is not necessary to receive the web page in synchronization with the reception of the cursor position information and the display screen area information. You can also update the webpage periodically.

On the other hand, the present invention is not limited to the above-described specific embodiments and can be carried out by variously modified and modified within the scope not departing from the gist of the present invention. If such changes and modifications fall within the scope of the appended claims, it will be obvious that they belong to the present invention.

1 to 3 are diagrams for explaining a web service providing procedure of a conventional mobile communication terminal.

4 is a system configuration diagram showing a web service providing system of a mobile communication terminal according to the present invention.

5 is a block diagram of a mobile communication terminal according to the present invention.

6 is a diagram illustrating a web page providing procedure in a web service providing system of a mobile communication terminal according to the present invention.

7 to 12 are diagrams for explaining a web service providing procedure of a mobile communication terminal.

<Description of Symbols for Main Parts of Drawings>

10: mobile communication terminal 11: control unit

12: mobile communication unit 13: key input unit

14: display section 15: memory section

16: pointing unit 20: base station

30: base station controller 40: PSDN

50: browser server 60_1 ~ 60_n: internet web server

Claims (14)

Ask the browser server to provide the desired web page according to the user's selection input, and expand the compressed image by receiving the compressed image to enable interlacing and progressive rendering of the web page provided by the browser server. A mobile communication terminal for displaying the image; When a web page request is received from the mobile communication terminal, the web browser is executed, the web page of the web server is accessed, the rendered web page is rendered, and the resulting image is compressed for interlacing and progressive rendering. Web service providing system of a mobile communication terminal, characterized in that it comprises a browser server for transmitting to the mobile communication terminal. The method of claim 1, The mobile communication terminal periodically provides the display screen area information of the web page displayed on the display unit and the cursor position information to the browser server, When the browser server receives the cursor position information and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen, and then compares the previous web page image with the latest web page image to check whether there is an area where the image has changed. And transmits an image of the changed area and its location information to the mobile communication terminal. The mobile communication terminal updates and displays the web page displayed on the display unit by replacing the existing image with the change region image based on the position information of the image of the changed region when the image and the position information of the changed region are provided in the browser server. Web service providing system of a mobile communication terminal, characterized in that. The method of claim 2, When the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen and then within the size of any one of the previous web page image and the latest web page image. Set an image comparison area that is larger than the display screen area of and check whether there is an area where the image has changed within the image comparison area with respect to the previous webpage image and the latest webpage image, and move the image and its position information on the changed area. Web service providing system of a mobile communication terminal, characterized in that the transmission to the communication terminal. The method of claim 2, When the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, the browser server images the latest web page screen and then within the size of any one of the previous web page image and the latest web page image. Set an image comparison area that is larger than the display screen area of, but set the image comparison area by moving the image comparison area toward the direction of movement of the cursor, and whether there is an area where the image has changed within the set image comparison area for the previous web page image and the latest web page image. And confirming and transmitting the image of the changed area and its location information to the mobile communication terminal. The method according to any one of claims 2 to 4, The position information of the cursor is absolute coordinates of the cursor, and the display screen area information is displayed as an upper left absolute coordinate and a lower right absolute coordinate, or is displayed as an upper right absolute coordinate and a lower left absolute coordinate. Web service provisioning system. The method according to any one of claims 2 to 4, The location information of the changed area is represented by the absolute position reference point of the changed image, the width of the changed image, and the height of the changed image Web service providing system of the mobile communication terminal. The method of claim 6, The absolute position reference point of the changed image is any one of the upper left absolute coordinates, the upper right absolute coordinates, the lower left absolute coordinates and the lower right absolute coordinates of the changed image web service providing system of the mobile communication terminal. Requesting, by the mobile communication terminal, the browser server to provide a desired web page according to a user's selection input; When the browser server receives the web page request from the mobile terminal, it executes the web browser, accesses the web page of the web server, renders the received web page screen, and as a result, enables the interlacing and progressive rendering of the image. Compressing and transmitting the compressed data to the mobile communication terminal; And a third step of receiving a compressed image of a corresponding web page provided from a browser server by the mobile communication terminal to expand the compressed image and display the stretched image by interlacing and progressive rendering. Method of providing web service of communication terminal. The method of claim 8, A fourth step of periodically providing display screen area information of a web page displayed on a display unit and cursor position information in a mobile communication terminal to a browser server; When the browser server receives the cursor position information and the display screen area information from the mobile communication terminal, image the latest web page screen, and then compare the previous web page image with the latest web page image to check whether there is an area where the image has changed. A fifth step of transmitting the image of the changed area and its location information to the mobile communication terminal; When the mobile communication terminal provides the image and the location information of the changed area in the browser server, the web page displayed on the display is updated by replacing the existing image with the changing area image based on the location information of the image of the changed area. The web service providing method of the mobile communication terminal further comprising a sixth step. 10. The method of claim 9, In the fifth step, when the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, image the latest web page screen and then move within the size of any one of the previous web page image and the latest web page image. Set an image comparison area larger than the display screen area of the communication terminal, check whether there is an area where the image has changed within the image comparison area with respect to the previous web page image and the latest web page image, and display the image and the location information of the changed area. Web service providing method of a mobile communication terminal, characterized in that the transmission to the mobile communication terminal. 10. The method of claim 9, In the fifth step, when the browser server receives the position information of the cursor and the display screen area information from the mobile communication terminal, image the latest web page screen and then move within the size of any one of the previous web page image and the latest web page image. An image comparison area larger than the display screen area of the communication terminal is set, but the image comparison area is set by moving toward the direction of movement of the cursor, and the area where the image is changed within the image comparison area set for the previous web page image and the latest web page image. Checking whether there is, and transmitting the image and the position information of the changed area to the mobile communication terminal, Web service providing method of a mobile communication terminal. The method according to any one of claims 9 to 11, The position information of the cursor is absolute coordinates of the cursor, and the display screen area information is displayed as an upper left absolute coordinate and a lower right absolute coordinate, or is displayed as an upper right absolute coordinate and a lower left absolute coordinate. To provide your web services. The method according to any one of claims 9 to 11, The location information of the changed area is represented by the absolute position reference point of the changed image, the width of the changed image, and the height of the changed image Web service providing method of the mobile communication terminal. The method of claim 13, The absolute position reference point of the changed image is any one of the upper left absolute coordinates, the upper right absolute coordinates, the lower left absolute coordinates and the lower right absolute coordinates of the changed image web service providing method of the mobile communication terminal.

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