KR100628635B1 - Method for managing image files in a mobile communication terminal - Google Patents

Abstract

The present invention relates to an image file management method in a mobile communication terminal.

The present invention relates to a method of managing an image file photographed through a camera using a file system in a mobile communication terminal, wherein the image file is stored or deleted by a request for storing or deleting the image file. If necessary, setting or changing a link value set in the image file table; When the user displays the image files stored in the memory in a list form through the user interface, displaying the image files arranged in chronological order on the LCD screen with reference to the link value of each image file set in the image file table It is comprised, including the method of doing.

Accordingly, the present invention provides a mobile communication terminal for managing an image file photographed through a camera using a file system, by setting a link value for each image file in an image file table in the file system. By maintaining the relationship between the image files in chronological order regardless of whether they are stored or deleted, even if a new image file is saved after deleting a specific image file, the image files are arranged in chronological order and displayed on the LCD screen. It is effective to manage photo albums.

Description

How to manage image files on mobile devices {METHOD FOR MANAGING IMAGE FILES IN A MOBILE COMMUNICATION TERMINAL}

1 is a diagram illustrating an example of managing an image file using an image file table of a file system in a conventional mobile communication terminal.

Figure 2 is a flow chart showing the operation of the image file management method in the mobile communication terminal of the present invention.

3 is an exemplary view illustrating an example of managing an image file using an image file table of a file system in an image file management method in a mobile communication terminal of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, and more particularly, to a mobile communication terminal managing an image file photographed through a camera using a file system, wherein the link to each image file in an image file table in the file system. By setting a value, the relationship between image files is maintained in chronological order regardless of whether the image files are saved or deleted, so that even if a new image file is saved after deleting a specific image file, the image files are arranged in chronological order and displayed on the LCD screen. The present invention relates to a method for managing image files in a mobile communication terminal capable of displaying and effectively managing a photo album.

A file system is a computer system, a mobile communication terminal, a personal digital assistant (PDA), or a communication device or a mobile device having a storage area for efficiently and systematically performing file management, reading, writing, and searching for a file. It is a defined system, and all operating systems (DOS) such as DOS, Windows, OS / 2, Macintosh, Unix, Linux are equipped with file system, and FAT16, FAT32, NTFS, Linux ext2 of Windows This includes raiserFS and ext3.

In particular, a file system is essential for managing an internal flash memory in an embedded system based on a real-time operating system such as a mobile communication terminal. In the case of managing an image file photographed by a digital camera mounted on a mobile communication terminal using the system, the file system has an index indicating an order of the files and a file name indicating a file name as shown in FIG. An image file table composed of fields such as Filename) and a flag indicating whether a file is used or not is managed to manage storage or deletion of the image file.

That is, when the user selects a function of displaying image files stored in the memory by moving a menu, the file system displays the image files stored in the memory in a list form to the user by referring to the flag of the image file table. For example, when four image files having file names 'pic0.jpg' to 'pic3.jpg' are stored as shown in FIG. 1, a flag corresponding to indexes '0' to '3' is set to 'N' in the image file table. 'Indicates that the index is unavailable, and the rest of the image files that are not saved are marked' Y 'to indicate that they are available.

At this time, if the image file corresponding to the file name 'pic0.jpg' of index '2' is deleted by the user, 'NULL' indicating that there is no file name in the file name field of index '2' in the image file table is displayed. And the flag is displayed as 'Y', so when the user selects the album view function to display the image file stored in the memory, the file system refers to the flag of the image file table, indexes '0', '1' and The file names 'pic0.jpg', 'pic1.jpg', and 'pic3.jpg' corresponding to '3' are displayed on the LCD screen.

Subsequently, when an image file corresponding to the file name 'pic4.jpg' is stored, the file system sequentially checks the flag of the image file table and places the file name 'pic4.jpg in the first index marked with the flag' Y '. 'And change the flag to' N ', when deleting a specific image file and storing a new image file, the new image file is inserted in the location where the deleted image file was located on the image file table. do.

Therefore, when the user selects the album view function to display the image file stored in the memory, the file system in the file name 'pic0.jpg', 'pic1.jpg', 'pic4.jpg', 'pic3.jpg' By displaying on the LCD screen, the image files stored in the memory are displayed in the index order of the image file table, not in the form of a list in the stored order, so that the most recently taken image file is mixed with the old image file. Due to this problem, it was difficult for the user to manage image files.

Accordingly, the present invention has been proposed to solve the above-mentioned problems, and in the mobile communication terminal for managing an image file photographed through a camera using a file system, an image file table in the file system The purpose is to provide a method to set the link value for each image file in order to maintain the relationship between the image files in chronological order regardless of whether the image file is stored or deleted.

In order to achieve the above object, the present invention provides a method of managing an image file photographed through a camera using a file system in a mobile communication terminal, wherein the file system is requested to be stored or deleted by the image file. Setting or changing a link value set in the image file table when storing or deleting the corresponding image file; When the user displays the image files stored in the memory in a list form through the user interface, displaying the image files arranged in chronological order on the LCD screen with reference to the link value of each image file set in the image file table Characterized in that.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a flowchart illustrating an operation of an image file management method in a mobile communication terminal according to the present invention. As shown in FIG. 2, a mobile communication terminal manages an image file photographed through a camera using a file system. A method comprising: setting or changing a link value set in an image file table when storing or deleting a corresponding image file in a file system by a request for storing or deleting an image file (S20, S21); When the user selects the album view function to display the image files stored in the memory in the form of a list through the user interface, the image files arranged in chronological order are referred to by referring to the link value of each image file set in the image file table. It comprises a step (S22, S23) displayed on the screen.

The present invention through the above configuration, in the mobile communication terminal for managing the image file taken through the camera by the file system for managing the flash memory (Flash Memory), each image file in the image file table in the file system By setting the link value for and maintaining the relationship between the image files in chronological order, even if a new image file is stored after deleting a specific image file, the image files are arranged and displayed in chronological order.

The mobile communication terminal to which the present invention is applied is an embedded system based on a real-time operating system, and manages a flash memory in which image files and the like are stored by a file system. Assuming that a digital camera is mounted, the image file refers to a file in a format such as a Joint Photographic Coding Experts Group (JPEG), a Graphics Interchange Format (GIF), or the like.

The file system manages storage or deletion of an image file photographed by a digital camera using an image file table, wherein the image file table indicates an order of image files as shown in FIG. 3. It consists of fields such as an index, a file name indicating the name of an image file, a flag indicating whether an index is used, and a link value indicating a time sequence in which the image file is stored. According to the present invention, the link value field has, as its value, an index of another image file stored after the image file is stored in order to indicate a time sequence in which a specific image file is stored.

For example, if the file system saves files in memory in the order of 'pic0.jpg', 'pic1.jpg', 'pic2.jpg', and 'pic3.jpg', the file corresponding to index '0' The link value of the name 'pic0.jpg' becomes '1' corresponding to the index of the later stored file name 'pic1.jpg', and the link value of the file name 'pic1.jpg' corresponding to index '1' is The link value of the file name 'pic3.jpg' corresponding to index '3' is '2', and since the file has nothing stored after the file, the link value is '-1' indicating that there is no file. do.

Subsequently, when the user selects the album view function to display the image files stored in the memory in the form of a list through the user interface, the file system is arranged in chronological order by referring to the link value of each image file set in the image file table. The main control unit (for example, MSM (Mobile Station Modem), etc.) in charge of overall control in the terminal controls other functional blocks so that the image file is transferred to the LCD screen and displayed in a list form.

When a mobile communication terminal manages an image file photographed through a camera using a file system, a user may store or delete an image file of a predetermined format photographed by the camera through a key input of a keypad. If the request is made (S20), the file system sets or changes the link value set in the image file table when the image file is stored or deleted by the request (S21).

In other words, if there is a request to save an image file, save the image file in memory, and then link it to the image file table in the image file table for the earliest index number in the file system with the flag of the image file table marked as 'Y'. As described above, the file name and the flag corresponding to each index number are set according to the order of storing as described above, and the index number of another image file stored after the corresponding image file is stored as each link value is set.

For example, if there is another image file stored after the corresponding image file is stored, the index number of the other image file becomes the link value of the image file, and if there is no other image file, the link value defaults to '-1' indicates that nothing is stored in the file.

If there is a request to delete an image file, the image file is deleted from the file system and the link value associated with the image file is changed. For example, if the file name 'pic2.jpg' is deleted, the index '2' 'NULL' indicates that there is no file in the file name, 'Y' indicates that the index is available, and since there is no image file stored after the image file, the link value is After that, a file name, a flag, and a link value corresponding to the index number in which the corresponding image file is set are reset by setting to '-1' indicating that there is no stored file.

At this time, the link value of the other image file corresponding to the upper index number of the corresponding image file should be changed. In the case of the index '1' which is another image file, the image file is stored when the image file of index '2' is deleted. Since the image file stored thereafter must be changed from index '2' to index '3', the link value of index '1' is changed to '3'.

In addition, if a new image file is saved after deleting a specific image file, for example, if the file name 'pic4.jpg' is newly stored, the file system sequentially checks the flag of the image file table and the flag is' The file name 'pic4.jpg' is registered to the earliest index number indicated by Y '. In the present invention, the file name' pic4.jpg 'is set to the file name of the index' 2 'which is currently empty and the index number is fast. , Flag is changed to 'N' and link value is set to '-1' indicating that there is no image file stored after the image file.

At this time, since the file name 'pic4.jpg' is newly stored at index '2', the image number corresponding to the most recently stored index number among the image files stored before the 'pic4.jpg' at index '2' is stored. The link value of index '3' corresponding to the image file should be changed. In the case of the index '3' which was stored most recently, the image file stored after the image file is nothing but the currently stored index '2'. Since it becomes 'pic4.jpg', the link value should be changed from '-1' to '2'.

On the other hand, when the user selects the album view function to display the image files stored in the memory in the form of a list through the user interface (S22), the file system refers to the link value of each image file set in the image file table and the corresponding link value. The image files are transferred to the LCD screen according to the order of S, in which the image files transferred to the LCD screen are arranged in chronological order (S23).

That is, as shown in the first image file table of FIG. 3, when the image files are sequentially stored in the order of 'pic0.jpg', 'pic1.jpg', 'pic2.jpg', and 'pic3.jpg', in the file system, Among the indices with the flag set to 'N', 'pic0.jpg', 'pic1.jpg', 'pic2.jpg', and 'pic3.jpg' are delivered to the LCD screen in the order of the link value. Similarly, when the image file 'pic2.jpg' is deleted, 'pic0.jpg' having the smallest link value is the first index among the indexes whose flag is set to 'N', and the index corresponding to the link value of 'pic0.jpg'. 'Pic1.jpg' of '1' is the second, and 'pic3.jpg' of index '3', which corresponds to the link value of 'pic1.jpg', is transferred to the LCD third, and 'pic0.jpg' is displayed on the LCD. ',' pic1.jpg ',' pic3.jpg 'are displayed in the order.

When the image file 'pic4.jpg' is newly stored after deleting the image file 'pic2.jpg' like the third image file table, 'pic0.' Having the smallest link value among the indices whose flag is set to 'N'. jpg 'is first,' pic1.jpg 'of index' 1 'corresponding to link value of' pic0.jpg 'is second, and' pic3. 'of index' 3 'corresponding to link value of' pic1.jpg 'is second. jpg 'is the third, and' pic4.jpg 'of index' 2 'corresponding to the link value of' pic3.jpg 'is transferred to the LCD fourth, and' pic0.jpg 'and' pic1.jpg 'are displayed on the LCD. followed by 'pic3.jpg' and then 'pic4.jpg'.

As described above, the present invention provides a mobile communication terminal for managing an image file photographed through a camera using a file system, wherein the link value for each image file is stored in an image file table in the file system. By setting and maintaining the relationship between image files in chronological order regardless of whether they are saved or deleted, even if a new image file is saved after deleting a specific image file, the image files are arranged in chronological order and displayed on the LCD screen. As a result, the user can effectively manage the photo album.

Claims (6)

In a method of managing an image file photographed through a camera using a file system in a mobile communication terminal, the image file is stored or deleted in the file system by a request for storing or deleting the image file. Setting or changing a link value set in the file table; When the user displays the image files stored in the memory in a list form through the user interface, displaying the image files arranged in chronological order on the LCD screen with reference to the link value of each image file set in the image file table Image file management method in a mobile communication terminal, characterized in that. The image file table of claim 1, wherein the image file table includes an index indicating an order of image files, a file name indicating a name of an image file, a flag indicating whether an index is used, and an image file. The image file management method of the mobile communication terminal characterized by consisting of a link value (Link) indicating the time sequence. The image file management method of claim 2, wherein the link value has an index of another image file stored after a specific image file is stored as the value. The method of claim 1, wherein the setting or changing the link value set in the image file table comprises: when a request for storing the image file is stored, after storing the image file in memory, the flag of the image file table is 'Y'. Set the file name and flag corresponding to each index number according to the order in which each image file is stored with respect to the earliest index number indicated by, and if the other image file is stored after the specific image file is stored, And setting the link value of the specific image file as an index number of the image file or setting the link value to a value indicating that there is no file stored thereafter. The method of claim 1, wherein the setting or changing the link value set in the image file table comprises: in response to a request for deleting an image file, deleting a corresponding image file and then deleting a corresponding image file, and a file name corresponding to the set index number. And resetting the flag and the link value, and then changing the link value of the other image file corresponding to the upper index number of the corresponding image file. The image file table of claim 1, wherein the setting or changing the link value set in the image file table comprises: storing another image file after deleting a specific image file and storing the other image file in a memory; Set the filename indicated by the other image file and the flag indicated by the 'N' at the earliest index number where the flag of 'Y' is displayed, and set the link value to indicate that there is no other image file stored after the other image file is stored. And then set a link value of the image file corresponding to the most recently stored index number.

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