KR20030061948A - : Apparatus storing information and method for controlling the File using its - Google Patents

Abstract

PURPOSE: An apparatus for storing information and a method for managing a file using the same are provided to prevent an increase of a file access time by executing a file defragmenter without user's operation. CONSTITUTION: A file system of an HDD(Hard Disk Drive) adds a temporary FAT(File Allocation Table) area to the HDD and stored audio and video data in the HDD through repetitive recording and erasure(401-402). It is confirmed whether a system is in a playing state or in an idle state(403). If so, a C file recorded at a non-successive space to execute a file defragmenter is confirmed(404). A successive space larger than the C file is secured at a data area of the HDD(405). An address corresponding to the successive space at the data area is stored in the temporary FAT area(406). It is judged whether data is duplicated to the secured successive space(407). If so, the stored C file is removed(408). The corresponding area of the C file at the temporary FAT area is duplicated to an FAT area(409).

Description

Apparatus storing information and method for controlling the File using its}

The present invention relates to an information storage device, a file management method using the same, and a computer-readable recording medium having recorded thereon a program for realizing the method.

Recently, video recorders using hard disks (hereinafter referred to as "HDDs") have emerged to store and play video and audio.

The HDD has a constant angular velocity (CAV) method in which all tracks are separated from each other, so that the access time of data is faster than that of the CD (CLV) that uses the constant liner velocity (CLV) method. Due to this, it is useful for video recording that requires a large amount of data storage.

In addition, the HDD may cause fragmentation of the file due to repeated recording and erasing of data, and the defragmentation of the file according to such fragmentation will be described with reference to the accompanying drawings.

1A and 1B illustrate a process of defragmenting a file in a general information storage device.

As shown in Figs. 1A and 1B, the HDD is largely divided into a FAT (File Allocation Table) area and a data area.

Here, the FAT area is a table for recording the address of the data area. The FAT area stores a plurality of sectors constituting the data area into one cluster and stores them in addresses such as 12 bits, 16 bits, and 32 bits.

Therefore, when the user repeats recording and erasing on the HDD, as shown in FIG. 1A, files A and B are stored in a contiguous space, but there may be a file C that is not stored continuously. As unsaved files grow, the time to access them increases.

Therefore, if a file is defragmented by a user's manipulation, file C occupies a continuous storage space as shown in FIG. 1B.

That is, as described above, the video recorder using the HDD repeats recording and erasing by the user. As a result, the HDD causes fragmentation, and to solve this problem, the file manipulation collection is performed. There is a need to do it.

However, the user of the video recorder using HDD recognizes the video recorder as a home appliance rather than the concept of a computer, so even if there is a function for file defragmentation, the user does not perform the file manipulation collection in a timely manner, thereby increasing data access time. There was a problem.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, information storage device for reducing the access time by automatically defragmenting the file in the video recorder using the HDD without the user's operation and the file using the same It is an object of the present invention to provide a computer-readable recording medium recording a management method and a program for realizing the method.

1A and 1B illustrate a file defragmentation process in a general information storage device.

2 is an exemplary configuration diagram of a file management system using an information storage device according to the present invention.

3A to 3C are diagrams illustrating a file defragmentation process in the information storage device according to the present invention.

4 is a flowchart illustrating a file management method using an information storage device according to the present invention;

※ Explanation of code for main part of drawing

210: HDD (Hard Disc Drive) 220: HDD Controller

230: memory 240: A / V recording processing unit

250: main controller 260: A / V playback processing unit

270 display unit

The present invention for achieving the above object, in the information storage device for storing a large amount of video and audio data including a FAT (File Allocation Table) area and a data (Data) area, the same format as the FAT area It further comprises a temporary FAT area for temporarily copying the address of the data according to the file defragmentation.

Meanwhile, the present invention provides a file management method applied to a file management system using an information storage device, comprising: a first step of adding a temporary FAT area having the same format as a FAT (File Allocation Table) area; A second step of storing image data and audio data by repetitive recording and erasing, and when the current mode is in playback or in IDLE state, identifying a file that is not continuously stored in the stored data; A third step of securing contiguous storage space equal to or larger than the identified file size and recording the address of the secured storage space in the temporary FAT area added in the first step; Copying the file into the secured continuous storage space and erasing the corresponding storage space of the file in the FAT area; And a fifth step of copying the address of the file recorded in the temporary FAT area to the FAT area and erasing the temporary FAT area.

On the other hand, the present invention, the file management using the information storage device, the first function of adding a temporary FAT area having the same format as the FAT (File Allocation Table) area to the system equipped with a processor; A second function of storing image data and audio data by repetitive recording and erasing, and checking a file which is not continuously stored in the stored data when the current mode is playing or in an IDLE state; A third function for securing a contiguous storage space equal to or larger than the identified file size and recording the address of the secured storage space in a temporary FAT area added in the first function; A fourth function of copying the file into the secured continuous storage space and erasing the corresponding storage space of the file in the FAT area; And a computer readable recording medium having recorded thereon a program for realizing a fifth function of copying an address of a file recorded in a temporary FAT area to a FAT area and erasing the temporary FAT area.

Hereinafter, exemplary embodiments of an information storage device and a file management method using the same according to the present invention will be described in detail with reference to the accompanying drawings.

2 is an exemplary configuration diagram of a file management system using an information storage device according to the present invention.

As shown in FIG. 2, reference numeral 210 denotes an HDD, 220 denotes an HDD controller, 230 denotes a memory, 240 denotes an A / V recording processor, 250 denotes a main controller, 260 denotes an A / V playback processor, and 270 denotes a display unit. .

The HDD 210 adds a temporary FAT area to perform defragmentation along with the FAT area and the data area.

The temporary FAT area has the same format as the FAT area, and under the control of the HDD controller 220, temporarily stores the address of the contiguous space secured in the data area, and stores the defragmented file in the secured data area. When copied, erase the temporarily stored address.

The HDD controller 220 reads or writes data stored in the HDD under the control of the main controller 250. In particular, the HDD controller 220 examines the FAT area of the HDD 210 to store data, thereby checking the FAT area. The controller transmits the address of the empty space to store the data to the main controller 250.

The A / V recording processor 240 processes the video and audio signals input from the outside and continuously stores them in the empty space of the HDD through the system bus and the controller 220.

The A / V playback processor 260 receives a playback command to the HDD controller 220 under the control of the main controller 250, and transfers data stored in the HDD 210 through the HDD controller 220 and the data bus. Receives signal processing, and the signal processed image is provided to the display unit 270.

3A to 3C are diagrams illustrating a file defragmentation process in the information storage device according to the present invention.

When a large amount of A / V data is stored in the HDD, if repeated recording and erasing is performed, as shown in FIG. 3A, files A and B are stored in a normal continuous space, but file C is not continuously stored. Will not.

The HDD allocates a temporary FAT area together with a FAT area and a data area.

Therefore, when the system is playing or in the IDLE state, the user automatically defragments the file without manipulation, which is illustrated in FIG. 3B.

In other words, if the recording and erasing are repeated, the file C is one file but the storage space is not continuous. To store this file C in contiguous space, free up contiguous storage space above file C in the free data area. Data is copied to the secured blank area, and the address of the data is stored in a temporary FAT area.

3C shows the state after performing the file fragment collection, and shows the storage state of the optimized data.

That is, when copying of data is completed, the area corresponding to file C is cleared from the original FAT area to recognize the data area occupied by file C as empty space. Then, if the area corresponding to file C in the temporary FAT area is copied to the original FAT area, the fragmented file C occupies a continuous data area.

4 is a flowchart illustrating a file management method using an information storage device according to the present invention.

As shown in FIG. 4, first, a temporary FAT area for defragmentation is added to the HDD file system in addition to the existing FAT area (401), and A / V data is repeatedly recorded and erased on the HDD. Save (402).

Then, it is checked whether the system is playing or IDLE state (403).

As a result of checking in step 403, if the system is not playing or not in the IDLE state, the process returns to step 402 of performing repeated recording and erasing and repeats the loop.

On the other hand, as a result of checking in step 403, when the system is playing or in the IDLE state, the file C recorded in the non-contiguous space among the file information recorded in the HDD for file defragmentation is checked (404). After contiguous space of the file C size or more identified in the data area of the HDD is secured (405), an address corresponding to the contiguous space in the secured data area is stored in the temporary FAT area (406).

In operation 405, it is determined whether data copying is completed in the continuous space secured in operation 405. As a result of the determination in step 407, if the data is not copied to the contiguous contiguous free space, the loop ends as an error state.

As a result of the determination in step 407, when copying of data to the secured contiguous empty space is completed, the file C stored in the FAT area is erased (408).

Thereafter, the corresponding area of the file C is copied from the temporary FAT area to the FAT area (409).

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

The information storage device and the file management method using the same as described above, by defragmenting a file without the user's operation to defragment the file generated by repeated recording and erasing when storing a large amount of A / V data on the HDD It is a useful invention that can prevent an increase in file access time in advance.

Claims (4)

An information storage device for storing a large amount of video and audio data, including a FAT (File Allocation Table) area and a Data area, Temporary FAT area for temporarily copying the address of data according to file defragmentation having the same format as the FAT area Information storage device comprising a. The method of claim 1, The temporary FAT area is An information storage device, characterized in that the temporary storage of the address of the data area that has secured a continuous storage space larger than the size of the file for defragmentation. In the file management method applied to a file management system using an information storage device, A first step of adding a temporary FAT area having the same format as a File Allocation Table (FAT) area; A second step of storing image data and audio data by repetitive recording and erasing, and when the current mode is in playback or in IDLE state, identifying a file that is not continuously stored in the stored data; A third step of securing contiguous storage space equal to or larger than the identified file size and recording the address of the secured storage space in the temporary FAT area added in the first step; Copying the file into the secured continuous storage space and erasing the corresponding storage space of the file in the FAT area; And The fifth step of copying the address of the file recorded in the temporary FAT area to the FAT area and erasing the temporary FAT area File management method using an information storage device comprising a. In a system having a processor for file management using an information storage device, A first function of adding a temporary FAT area having the same format as a FAT (File Allocation Table) area; A second function of storing image data and audio data by repetitive recording and erasing, and checking a file which is not continuously stored in the stored data when the current mode is playing or in an IDLE state; A third function for securing a contiguous storage space equal to or larger than the identified file size and recording the address of the secured storage space in a temporary FAT area added in the first function; A fourth function of copying the file into the secured continuous storage space and erasing the corresponding storage space of the file in the FAT area; And Fifth function for copying address of file recorded in temporary FAT area to FAT area and erasing temporary FAT area A computer-readable recording medium having recorded thereon a program for realizing this.