KR100654611B1 - Method for storing and reading data in mobile phone - Google Patents

Abstract

The present invention separates the resources and executable code provided in the mobile communication terminal and stores them in the same area of the NAND memory, thereby copying only the executable code to the SDRAM when booting the executable code and preventing data from being copied to the SDRAM. A storage and reading method is provided, wherein all execution programs and resources of a mobile communication terminal are stored in an execution code area, and the execution code area is divided into first and second areas, and the execution program and resources are respectively constructed in the first and second operations. It is characterized in that separated in the second area and stored.

Mobile communication, terminal, data, storage, reading

Description

Method for storing and reading data in mobile phone}             

1 is an exemplary view illustrating a data storage method of a conventional mobile communication terminal.

2 is a block diagram of a mobile communication terminal to which the present invention is applied.

3A and 3B are exemplary views illustrating a data storage method of a mobile communication terminal according to the present invention.

4 is a flowchart illustrating a data storage and reading method in a mobile communication terminal according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: keypad 30: NAND memory

40: control unit 50: SDRAM

60: LCD screen 70: radio frequency processing unit

80: speaker

The present invention relates to a method for storing and reading data in a mobile communication terminal, and in particular, separates a resource from an execution code, stores the same in a NAND memory, and searches for and reads a storage location of a resource through a predetermined reference table. A method of storing and reading data that may come.

Recently, as the wireless communication technology is highly developed, various services are provided through a mobile communication terminal. For example, the mobile communication terminal provides services such as voice call, text and voice message transmission, and wireless internet, which are basic wireless communication services. do. In addition, the mobile communication terminal stores various information, for example, a game, a ringtone, music, and a telephone number, and provides the information to the user. In order to store such information, the mobile communication terminal has a NAND memory and an SDRAM therein.

A method of storing a variety of information in a NAND memory by a conventional mobile communication terminal having such a function will be described with reference to FIG. 1 as follows.

As shown in FIG. 1, the conventional mobile communication terminal stores an executable program and data by dividing the NAND memory 10 provided therein into two regions, namely, an execution code region 11 and a file region 12. do.

The execution code area 11 stores an execution program for controlling all functions of the mobile communication terminal, and the file area 12 stores resources and various data. Here, resources are data that is set when manufacturing a product, and support pictures, melodies, and ringtones.

In order to provide the stored data to the user, the conventional mobile communication terminal first executes the execution program stored in the execution code area 11. At this time, when the conventional mobile communication terminal boots the execution program of the execution code region 11, the execution program is copied to the SDRAM, and at the same time, the resources and various data of the file region 12 are also copied to the SDRAM. )do.

However, in this case, although only the execution program is to be copied, the resources of the file area 12 are unnecessarily copied to the SDRAM, thereby reducing the storage area of the SDRAM.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a data storage method capable of separating resources and executable codes provided in a mobile communication terminal and storing them in the same area of the NAND memory.

According to the present invention, a resource and execution code are separated and stored in the same area of a NAND memory of a mobile communication terminal, thereby copying only the execution code to the SDRAM when booting the execution code and preventing data from being copied to the SDRAM. To provide.                         

The present invention provides a data storage method capable of preventing the memory area from being used unnecessarily by copying only the execution code to the SDRAM when the mobile communication terminal boots the execution code.

The present invention provides a data reading method in which a location of a resource stored separately from an execution code in a NAND memory of a mobile communication terminal can be easily searched with reference to a predetermined reference table.

In order to achieve the above object, the present invention provides a mobile communication terminal having a NAND memory including an execution code region and a file region, wherein both the execution program and the resources of the mobile communication terminal are stored in the execution code region. The code area is divided into a first area and a second area, and the execution program and the resources are separately stored in the first and second areas.

The present invention relates to a method for reading an execution program and a resource stored separately in a first area and a second area divided by an execution code area of a NAND memory provided in a mobile communication terminal. A first step of calculating a storage location of specific data with reference to a reference table stored in the second area; A second step of checking whether there is a bad block among the previous blocks of the block to which the calculated storage location belongs, and how many bad blocks there are; A third step of reading specific data of a resource from the calculated position if there is no bad block as a result of the checking; And if there is at least one bad block, after calculating the number of pages of the bad block, adding the number of pages of the bad block and the position of the calculated specific data to calculate and calculate a storage position of the specific data. The fourth step of reading a specific data in the.

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

2 is a block diagram of a mobile communication terminal to which the present invention is applied.

Referring to FIG. 2, the mobile communication terminal includes a keypad 20 for inputting a data storage and reading command and various user commands, and a NNND memory 30 for storing execution programs and resources. And a controller 40 for controlling data storage and reading of the NAND memory 30 according to a user's instruction input through the keypad 20, and controlling a call and transmission of various information, and the controller 40. An SDRAM 50 to which data stored in the NAND memory 30 is copied to the NAND memory 30 upon booting up, and a liquid crystal display (LCD) for displaying text and image information transmitted by the control unit 40 ( 60) and a radio frequency processing unit converting the baseband signal transmitted by the control unit 40 into a high frequency signal and transmitting it to the outside, and converting the high frequency signal received through a base station or the like into a baseband signal and connecting it to the control unit 40. 70, with control And a speaker 80 for outputting sound signals to an external delivered by 40. The

In the mobile communication terminal having such a configuration, the present invention proposes a method of storing data in the NAND memory 30 and reading the same, which will be described in more detail.

In general, the NAND memory 30 is divided into the execution code area 11 and the file area as described with reference to FIG. 1 to store data such as resources. However, when the data is stored in this way, the control unit 11 executes the execution program. Since the resources of the file area 12 along with the executable program are also copied to the SDRAM 50 at the time of booting into the execution code area 11 for reading, in the present invention, the execution code and resources are stored in the same area. By separating and storing, it is intended to prevent a resource or the like from being copied to the SDRAM 50 at boot time of the execution program. Here, as described above, resources are data that are set in advance when the product is manufactured, and are data for supporting preset functions such as pictures, melodies, and ringtones after the mobile communication terminal is booted by the execution program.

To this end, the NAND memory 30 of the mobile communication terminal according to the present invention is largely divided into an execution code region 31 and a file region 32 as shown in FIG. 3A, but again, the execution code region 31 includes two regions; That is, the first region 31-1 storing the execution program and the second region 31-2 storing the resources are separated.

The storage area of the NAND memory 30 is again divided into blocks, and each block includes 32 pages.

For example, as shown in FIG. 3B, the second area 31-2 of the execution code area 31 is divided into n blocks, and each of these blocks is composed of 32 pages.

The resource is stored in the second area 31-2 of the NAND memory 30 having the above structure, and the resource is located at a predetermined position of a specific page of any block in the second area 31-2 according to the size of the data. It is stored from a byte in a specific byte of a specific page of the same block as the block or the next block. For example, either data in a resource is stored from 4 bytes of 2 pages of 1 block to 5 bytes of 5 pages of 2 blocks.

Thus, since the resource is separated from the execution program and stored in the second area 31-2 of the execution code area 31, according to the present invention, when the control unit 40 tries to read the resource, the data is more accurately and quickly. The reference table as shown in Table 1 is stored in the second area 31-2 of the NAND memory 30 so that the storage location can be retrieved.

     music     Wallpapers      . . .      Ringtone        One     shanty     Summer landscape      . . .     melody        2     Changbu Tayeong     Autumn landscape      . . .     Horn        . . .        . . .        . . .        . . .        . . .        n     Brier     snow man      . . .      March

[Table 1] is a reference table for quickly and accurately searching the location of data of resources stored in the second area 31-2 of the NAND memory 30. For example, the controller 40 If you want to read the resource "Summer Scenery", knowing the location of "Singing Song and Brier" stored in the location before "Summer Scenery", you can calculate the location where the "Summer Scenery" stored in the next location is stored quickly and accurately. That is, the controller 40 refers to the reference table, calculates the location where the "summer landscape" is stored, reads the "summer landscape" from the calculated position and displays it on the LCD screen 60.

Here, if a bad block occurs among the blocks of the second area 31-2, since the data is not stored in the bad block, the storage position of the "summer landscape" calculated by the controller 40 is transferred. If there is a bad block, the "summer landscape" is stored at the position calculated by multiplying the number of bad blocks by 32 (the number of pages in one block). This is because data to be stored in the block in which the bad block is located is not stored in the bad block, and the storage location is pushed back by 32 pages constituting the bad block.

In this way, a program for calculating the location of the resource is embedded in the mobile communication terminal, and the controller 40 reads the resource and provides it to the user through the process shown in FIG. 4 according to the program.

4 is a flowchart illustrating a data storage and reading method in a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 4, first, when the mobile terminal is manufactured, as shown in FIG. 3A, the execution program and the resource are separated and stored in the execution code area, and when the specific data of the stored resource is read, the storage position of the data is calculated. A " reference table " for use is created in the form as shown in [Table 1] and stored in the same area as the storage area of the resource (S401).

As described above, when a user instructs a user to press a key of the keypad 20 to output specific data of the resource on the liquid crystal display 60 in the state where the resource is stored in the mobile communication terminal (S402), the mobile communication terminal may have a predetermined value. The storage location of the data indicated by the user is calculated with reference to the reference table (S403). At this time, the mobile communication terminal specifies the block of the same block or the next block from the byte at a certain position of a specific page of any block of the second area 31-2 of the NAND memory 30. Make sure that up to a certain byte of the page is stored.

When the storage location of the specific data of the resource is calculated in this way, the mobile communication terminal checks whether there are bad blocks among the previous blocks of the block to which the calculated page belongs and if there are how many bad blocks (S404).

If there is no bad block as a result of the check, the mobile communication terminal reads the specific data of the resource from the storage location calculated in the calculation process (S403) (S405). Here, the mobile communication terminal displays the read data according to the user's instructions on the LCD screen 60 or outputs through the speaker 80, or transmits the data to the outside through the radio frequency processor 70.

If there are two bad blocks, the mobile communication terminal calculates that the number of pages of the two bad blocks is 64 (S406). Here, since each block of the second area 31-2 of the NAND memory 30 has 32 pages, the number of pages included in the two blocks adds up to 64 pages. That is, if there are n bad blocks, the total number of pages constituting the n bad blocks is n multiplied by 32.

In addition, the mobile communication terminal adds 64, which is the total number of pages constituting the two bad blocks and the storage position value of the data calculated in the calculation process (S403), and confirms that the position value is the storage position of the specific data to be read (S407). In operation S408, specific data of the resource stored in the calculated position is read. Here, the mobile communication terminal displays the read data according to the user's instructions on the LCD screen 60 or outputs through the speaker 80, or transmits the data to the outside through the radio frequency processor 70.

As described above, according to the present invention, since the execution program and the resource are separately stored in the execution code area, even if the mobile communication terminal boots the execution program, the resource is not copied to the SDRAM and the location of the resource stored in the execution code area. Is calculated by referring to a reference table, so that resources can be read quickly and accurately.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, according to the present invention, by separating the resource and the execution code provided in the mobile communication terminal in the same area of the NAND memory, only the execution code is copied to the SDRAM when the execution code is booted, and the resources are copied to the SDRAM. This prevents the memory area from being used unnecessarily.

Claims (6)

A mobile communication terminal having a NAND memory comprising an execution code area and a file area, Store both the execution program and resources of the mobile communication terminal in an execution code area; Divide the execution code area into first and second areas, Execution programs and resources are separately stored in the first and second regions, And the resource is data supporting a preset function of the mobile communication terminal. The method of claim 1, And a reference table for retrieving a data location of a resource is stored in a second area of the NAND memory. The method according to claim 1 or 2, According to the size of the data, the resource is moved from a byte at a certain position of a specific page of a block in the second area to a specific byte of a specific page of the same block as the block or a block located next to the moving block. Data storage method of communication terminal. In the method of reading an executable program and resources stored separately in the first and second areas divided by the execution code area of the NAND memory provided in the mobile communication terminal, A first step of calculating a storage location of specific data by referring to a reference table stored in the second area to read specific data of a resource indicated by a user; A second step of checking whether there is a bad block among the previous blocks of the block to which the calculated storage location belongs, and how many bad blocks there are; A third step of reading specific data of a resource from the calculated position if there is no bad block as a result of the checking; And If there is at least one bad block as a result of the checking, after calculating the number of pages of the bad block, the number of pages of the bad block and the calculated position of the specific data are added to calculate and calculate the storage position of the specific data. Fourth step to read specific data Data reading method of a mobile communication terminal comprising a. The method of claim 4, wherein In the first step or the fourth step, The calculated storage position of the specific data ranges from a byte at a predetermined position of a specific page of one block in the second area to a specific byte of a specific page of the same block as the block or the next block according to the size of the data. Data reading method of a mobile communication terminal, characterized in that stored. The method of claim 4, wherein In the fourth step, And multiplying the number of bad blocks by 32, the number of pages of each block, and calculating all the number of pages of at least one bad block.

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