KR20010066401A - A compression and restoring method of data in Korean - Google Patents

Abstract

PURPOSE: A method for compression and recovery of Korean character data is provided to perform effectively compression and recovery of all data using Korean character by outputting a code word + prefix code of code stream. CONSTITUTION: A format of a file is classified to compress and a dictionary is initialized. An index table/housing table is generated about a compression code. A compression is performed by a process outputting a code word + prefix code of code stream. A format of a file is classified to recover and the dictionary is initialized. It is confirmed if a character word is in the dictionary. In case the character word is in the dictionary, a code word is output and replaced with a prefix, and prefix new data are added to the dictionary. In case the character word isn't in the dictionary, a code stream is replaced with a prefix, and a prefix + code word is output to a character stream and the output is added to the dictionary.

Description

A compression and restoring method of data in Korean}

The present invention relates to a method for compressing and restoring Hangul data, and in particular, it has excellent compatibility with programs for compressing existing data, compresses and restores, as well as compresses and compresses a compressed file directly by e-mail or by splitting. The present invention relates to a method for compressing and restoring Hangul data, which can be efficiently used for compressing or restoring all data using Hangul by having functions such as searching and treating damaged files.

In general, it is well known that as the number of homes and workplaces using computers increases, almost all information is stored as files for computers.

In addition, since the data is stored as a digital signal in which the data of "0" or "1" is combined, the capacity of the data of information consisting only of letters is not so large. It can save a large amount of files, but in case of digital information based on audio signal or picture or color combination, its capacity is so large that not only one diskette can be used, but also the remaining storage of computer In many cases, it can't be saved in an area.

Therefore, Winzip, which can compress or restore general data, is proposed and used.

However, in the conventional method of compressing and restoring data, it can be compressed while supporting only a zip file. When restoring a format other than zip, a program to execute another format must always exist. It can only be used for menus, and it can't convert files in a compressed state, and can only be executed after files have been installed normally while being restored in a compressed state. There was a downside.

Therefore, the present invention has excellent compatibility with programs for compressing existing data, and not only compresses and restores, but also compresses and compresses a compressed file directly by e-mail or splits it. It is an object of the present invention to provide a method for compressing and restoring Hangul data that can be efficiently used for compressing or restoring all data using Hangul.

In order to achieve the above object, the present invention first inserts a compressed CD or the like into a CD ROM driver of a computer and instructs the program to be read. Reading the stored data,

Displaying the initial screen of reading the data of the CD through the CD ROM driver and asking whether the user wants to install the program;

When the user clicks the button of the installation to install the program, the program reads and restores the compressed program stored in the CD and saves it to the address designated by the user.

When the user inputs a file of data to be compressed, classifying the file type and classifying the file by type,

Compressing the files of the separated types;

Initializing the dictionary of the compressed file and reading and importing the file to be compressed of the character stream;

Creating an index table in memory after creating an index table / housing table for the compression code;

Storing the coded data in the code stream after storing the index number for the compressed code;

Re-initializing the dictionary, checking if there is any data to compress in the character stream,

If there is no more data to compress in the character stream, the compression is performed by the steps of outputting the codeword + prefix code of the code stream and then ending it.

When the user inputs a file of data to be restored, classifying the file type and classifying the file by type;

Compressing the files of the separated types;

Initializing the dictionary of the compressed file and reading and importing the first code of the code stream,

Outputting a character word of the character stream and replacing the prefix word with the character word;

Reading the character word located next to the code stream to check if the imported character word is in the dictionary,

if it is in a dictionary, outputting codewords imported into the character stream and replacing them with prefixes,

Reading and importing new data from the codeword, adding the prefix new data to the dictionary,

If it is not in the dictionary, read and import the prefix and replace the code stream with the prefix,

Compress all the data using Hangul by outputting the prefix + codeword to the character stream, adding the output to the dictionary, and then restoring it by checking if there is more data to interpret in the code stream. It can also be used efficiently for restoration.

1 is a flow chart illustrating a process of compressing data of the present invention.

2 is a flowchart illustrating a process of restoring data of the present invention.

3 is a schematic diagram showing a menu of the present invention automatic release editor.

4 is a schematic diagram showing a menu of the present invention compressed file segmentation.

Figure 5 is a schematic diagram showing the menu of the present invention Zip file inspection / treatment.

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

The present invention is characterized in that the process of compressing or reproducing data while storing a file rather than a hardware configuration,

First, the program for compressing and restoring inserts a compressed CD into the CD ROM driver of the computer (step 1) and then instructs the program to read (step 2). Read (step 3).

Displaying the initial screen reading the data of the CD through the CD ROM driver, asking whether the user wants to install the program (step 4), and when the user clicks the install button to install the program (step 5). In addition, the program compressed and stored in the CD is read, restored, and stored in the address designated by the user (step 6).

If the user inputs a file of data to be compressed while storing a program for compressing or restoring the data as described above (step 7), it is determined whether or not the file to be compressed can be distinguished (step 8). ) If not possible, display the error and exit (step 19). If the file can be classified, classify the file type into ARJ, ARC, GZIP, LHA, LZH, PAK. The RAR, TAR, ZIP, and ZOO are classified by types (step 9).

The files of the separated types are compressed in the form of "LZW" (step 10), the dictionary of the compressed files is initialized (step 11), and the files to be compressed of the character stream are read (step 12).

After creating an index table / housing table for the compression code (step 13), create an index table in memory (step 14).

After storing the index number for the compressed code (step 15), the coded data is output from the code stream (step 16).

Check if there is more data to compress in the character stream (step 17), and if so, start again from initializing the dictionary, while if there are no more data to compress in the character stream, the prefix of the codeword + code stream Compression is performed by the steps of outputting the code) and ending (step 18).

The compressed file can be made into an auto-execution file (.exe). This can be done by selecting the menu of the self-extracting edit menu as shown in FIG. 3 (step 20) and inputting the zip file and the Exe location and display title. This can be useful for creating files like setup.exe (step 21).

If the compressed file cannot be stored on a single diskette, the compressed file division menu as shown in FIG. 4 is selected (step 22), and the size of the compressed file can be divided and stored (step 23). .

If the menu of Zip file check / repair as shown in Fig. 5 is selected (step 24), the compressed file can be scanned and the file can be recovered when the file is damaged and saved under a new name (step 25).

On the other hand, when the user wants to restore the data compressed by the above compression process, if a file of data is input (step 31), it is possible to determine whether the file to be compressed can be distinguished (step 32). If not, an error is displayed and then terminated (step 33). If the files can be distinguished, the file types are classified and ARJ, ARC, GZIP, LHA, LZH, PAK. The RAR, TAR, ZIP, and ZOO are classified by types (step 34).

Compress the above distinct types of files into a form such as "LZW" (step 35), initialize the dictionary of the compressed file (step 36), and then read and import the first code of the code stream (step 37). ).

The character word of the character stream is output (step 38) and the prefix word is replaced with the character word (step 39).

The character word located next to the code stream is read to check whether the imported character word is in the dictionary (step 41).

If it is in the dictionary, the codeword taken into the character stream is output (step 42) and replaced with the prefix (step 43).

Read and import the new data from the codeword (step 44) and add the prefix new data to the dictionary (step 45).

If it is not in the dictionary in step 41 above, the prefix is read and retrieved (step 46) and the code stream is replaced with the prefix (step 47).

Output the prefix + codeword to the character stream, add the output to the dictionary (step 48), and then perform the restoration by checking whether there is more data to interpret in the code stream (step 49). .

According to the method of compressing and restoring Korean data according to the present invention, when a file to be compressed is input, the file type is classified and compressed, the dictionary is initialized, the file to be compressed of the character stream is imported, and an index table for the compression code is obtained. Create a housing table, create an index table in memory,

Compression is performed by storing the index number for the compression code and outputting the coded data from the code stream, checking whether there is more data to compress, and outputting the prefix code of the codeword + code stream,

After inputting the file of the data to be restored, classify the file type, compress the file, initialize the dictionary, output the character word of the character stream for the first code of the code stream, replace the prefix word with the character word, and then Taking the character word of and checking if it is in the dictionary,

If it's in a dictionary, it prints the codeword imported into the character stream and replaces it with the prefix, gets the new data from the codeword, adds the prefix new data to the dictionary,

If it is not in the above dictionary, read and import the prefix, replace the code stream with the prefix, output the prefix + code word to the character stream, and add the output to the dictionary to see if there is more data to interpret in the code stream. By restoring the data, all the data using Hangul can be efficiently used for compression or restoration.

Claims (2)

The program for compressing and restoring has saved the compressed CD on your computer. When the user inputs a file of data to be compressed, classifying the file type and classifying the file by type, Compressing the files of the separated types; Initializing the dictionary of the compressed file and reading and importing the file to be compressed of the character stream; Creating an index table in memory after creating an index table / housing table for the compression code; Storing the coded data in the code stream after storing the index number for the compressed code; Re-initializing the dictionary, checking if there is any data to compress in the character stream, If there is no more data to be compressed in the character stream, the method of compressing Korean data is performed by the steps of outputting a codeword + prefix code of the code stream and ending. When the user inputs a file of data to be restored, classifying the file type and classifying the file by type; Compressing the files of the separated types; Initializing the dictionary of the compressed file and reading and importing the first code of the code stream, Outputting a character word of the character stream and replacing the prefix word with the character word; Reading the character word located next to the code stream to check if the imported character word is in the dictionary, if it is in a dictionary, outputting codewords imported into the character stream and replacing them with prefixes, Reading and importing new data from the codeword, adding the prefix new data to the dictionary, If it is not in the dictionary, read and import the prefix and replace the code stream with the prefix, A method of restoring Hangul data in which a prefix + code word is output to a character stream, adding output to the dictionary, and then restoring whether there is more data to be interpreted in the code stream.