KR20010001790A - Language training method and system using a digital data - Google Patents

Abstract

PURPOSE: A system for studying languages using digital data is provided to improve the language study's effectiveness by storing the language study information in a CD-ROM as digital data, enabling a user to select and download the sections of the necessary data onto a memory card, and replaying the data in a portable digital audio process device, and to prevent unauthorized duplication of the CD-ROM data. CONSTITUTION: A system for studying languages using digital data is composed of selection, decode, and output. A language study CD-ROM's classified digital audio data files are displayed on a monitor and a user selects desired data sections with a mouse or a keyboard. The selected data is downloaded and transmitted to a PC's decoder. The decoder decodes the data in accordance to the specified regulations and outputs the decoded data to a memory writer. The output data is written on the memory writer's memory card, which is a flash memory that capacitates repeated data input. The memory card is attached to a digital data process device's slot, such as an MP3 player, and transmits the digital audio file data to the device's micro computer. The digital audio signals are output as audio signals through an audio amplifier in accordance to a functional key input department's operations.

Description

Language training method and system using a digital data}

The present invention stores digital learning data in a CD-ROM, and downloads the digital learning data stored in the CD-ROM by using a PC CD-ROM driver to selectively download as much section learning data as desired into a memory card. The present invention relates to a language learning method and a system using digital data that can be repeatedly reproduced by a user.

The genuine tape market, which stores language learning data or music data using magnetic tape as a magnetic recording medium and sells it, is at risk of its existence due to unauthorized duplication using duplexers that can be easily obtained anywhere.

In the case of an audio tape that simply records and reproduces audio signals of language learning data or music data, it is difficult to implement a special copy protection device on the tape, so the unauthorized copying is left alone.

On the contrary, in the case of recording the language learning data or the music data together with the image on the video tape, the technique of reducing the reproduction sound quality and the image quality of the copy tape significantly by causing the video synchronization signal to be disturbed or the audio tracking to be collapsed during the unauthorized copying. Through this, unauthorized copying can be prevented. In addition, unauthorized copying can be prevented by scrambled and recorded video signals recorded on a video tape and restoring the signals reproduced therein back to the descrambler.

However, such an unauthorized copy protection device on a videotape can be decoded and reproduced without difficulty with a little expert help, so it is not a complete unauthorized copy protection device.

On the other hand, recently, a technique for compressing, storing and playing back language learning data or music data on a CD-ROM capable of storing a large amount of data has been proposed. In this way, compressed data such as learning programs or music programs stored in a CD-ROM can be easily copied and stored on a hard disk or another CD-ROM via a PC, and thus, its security is hardly guaranteed.

An object of the present invention is to store the learning content in the CD-ROM as digital data, and to download the digital learning data stored in the CD-ROM using only the CD-ROM driver of the PC selectively download the desired section learning data to the memory card portable digital audio The present invention provides a language learning system and a language learning method which can improve the language learning efficiency by allowing the processing apparatus to be repeatedly reproduced.

Another object of the present invention is to provide a language learning system and a language learning method which can prevent unauthorized copying of language learning program data stored in a CD-ROM.

1 is a block diagram of a language learning system according to the present invention.

2 is a block diagram of a digital data file of the present invention.

3 is a flowchart illustrating a process of downloading and reproducing language learning data according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: CD ROM 20: PC main body

21 CDROM Driver 22 Parallel Interface

23: monitor 24: key input device

30: decryptor 31: memory writer

32: memory card 40: digital data processing device

41: microcomputer 42: function key input unit

43: display 44: amplifier

45: slot

The present invention for achieving the above object is a first step of reading the entire data list of the CD-ROM containing the encrypted learning data through the CD-ROM driver of the PC, and a second designation of the desired learning interval from the entire CD-ROM data And a third step of downloading the learning data of the designated section and decrypting it with an encryption decoder, a fourth step of storing the decrypted learning data in a memory card using a memory writer, and digital learning data contained in the memory card. A language learning method using digital data including a fifth step of processing the key input and outputting the audio signal; A magnetic recording medium in which learning data is encrypted, a magnetic recording medium driver inside the PC for driving the magnetic recording medium, and an encryption code for downloading and decrypting digital learning data of designated sections or files among the learning contents of the magnetic recording medium. A language learning system comprising a decoder, a memory writer for recording the decrypted digital learning data on a memory card, and a digital audio processing apparatus having the memory card storing a predetermined amount of digital learning data by the memory writer as a database; It is characterized by.

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

1 is a block diagram of a language learning system using digital data or a digital file of the present invention. Here, the CD ROM 10, which is a kind of magnetic recording medium, stores digital language learning data in the form of an audio file. Such CD recording data is encrypted according to certain rules.

The PC main body 20 is equipped with a CD ROM driver 21 for reading encrypted digital data on the CD ROM. The digital data of the CD ROM 10 read by the CD ROM driver 21 is The file unit or the list unit is arranged to be output through the monitor 22.

At the same time, the encrypted digital data contained in the CD ROM 10 output through the parallel interface 22 is configured to be provided to the decryptor 30.

The PC main body 20 includes a key input device 24 including a keyboard and a mouse for determining a learning data section (or file) to be downloaded, and a file or a list of digital data contained in a CD-ROM, a magnetic recording medium. It has a monitor 23 for display.

The decoder 30 downloads the digital data corresponding to the address or the list of the digital data file specified by the key input device such as a mouse from the PC main body 20, and encrypts the data in the CD ROM. It is configured to be provided to the memory writer 31 having a multimedia card which is a memory device for storing the decrypted digital data after decrypting using the reverse protocol of the used protocol.

The predetermined amount of digital data or the file transmitted to the memory writer 31 is configured to be sequentially stored in the memory card 32 mounted in the memory writer 31. The memory card 32 in which the digital data is suited is The data is interfaced to the digital data processing device 40 so as to reproduce and output digital data stored in the memory card for a predetermined time.

At this time, a certain amount of learning data downloaded to the memory card is assigned a separate ID, and the ID of the data in the memory card assigned to the learning data is read by a digital data processing device for reproducing and outputting the ID of the digital data processing device itself. Can be configured to check whether

The digital data includes a compressed digital audio file format, and the digital data processing device 40 includes a digital audio file reproducing apparatus. The digital audio file player may be an MP3 player.

The digital data processing device (MP3 player) 40 processes slots 45 for interfacing learning audio data stored as digital data in the memory card 32, and processes digital data in the form of audio files input through the slots. A microcomputer 41 for converting and outputting a voice signal into a voice signal, a function key input unit 42 for selecting a function related to playback control of an audio file on the micom side, and amplifying a voice signal processed and output from the micom headphone And an amplifier 44 for outputting to the terminal.

The microcomputer 41 is configured to display the caption text data file stored in the digital audio file externally as caption information in synchronization with a voice signal of a digital audio (for example, MP3) file output through a voice output device. The display 43 may be further provided.

Referring to the operation of the present invention configured as described above are as follows.

First, the digital audio file recorded in the CD-ROM as learning data includes size information of caption text data, size information of digital audio file data, caption text data, and digital audio file data. That is, as shown in Fig. 2, the size (n Bytes) of the text data, the size (m Bytes) of the digital audio data such as MP3, the text data (I am boy ...), and the digital audio data such as MP3 ( xx yy zz ...) constitutes one file per sentence unit.

Therefore, if an arbitrary digital audio file address is specified among the digital compressed files stored in the CD-ROM, the caption text data and the digital audio data of the digital audio file are selected.

When caption text data and digital audio data are recorded on a CD-ROM, they are encoded according to a predetermined rule.

As a method of encrypting digital data for learning or music in a CD-ROM, a unique number (ID) can be assigned to each CD-ROM produced, and the digital audio file data can be encrypted using this unique number. For example, if you encrypt the original digital audio data on the CD-ROM based on the 4 Bytes hexadecimal unique number (ID = 22 73 91 24), you can do the following:

Original data: 1 2 3 4 56 78 90 ab cd ef f0 12 34

+ 22 73 91 24 22 73 91 24 22 73 91 ...

Encrypted data: = 34 a7 e7 9c b2 1e 5e 13 12 85 c5

The above-mentioned encrypted digital data (34 a7 e7 9c b2 1e 5e 13 12 85 c5 ...) is applied to the production of the CD-ROM. The digital data contained in the ROM can be read from and played back.

The digital (audio) data file encrypted on the CD-ROM may be decrypted by the decoder 30 having the same ID as that of the CD-ROM as follows.

Encrypted data: 34 a7 e7 9c b2 1e 5e 13 12 85 c5

-22 73 91 24 22 73 91 24 22 73 91 ...

Original data: = 1 2 3 4 56 78 90 ab cd ef f0 12 34

The original digital data (1 2 3 4 56 78 90 ab cd ef f 0 12 34 ...) decrypted as described above is recorded in the memory card 32 in the memory writer 31. At this time, the digital data downloaded to the memory card 32 has a separate ID in a file form or a predetermined area. Such a separate memory card ID is given by the memory writer when the digital data encrypted by the memory writer 31 is decrypted and then downloaded to the memory card 32.

3 is a flowchart illustrating a language learning method using digital data in the form of an audio file according to the present invention.

As referred to herein, in order to download a certain amount of data files from the learning data recorded on the CD-ROM to the memory card, first, a form or file form in which the digital data for learning is fixed in the CD-ROM driver 21 of the PC main body 20 is used. Drive by inserting the encrypted CD ROM (1).

Accordingly, a list of digital data audio files contained in the corresponding CD-ROM is displayed on the monitor 23. The user designates and downloads a data section (or file) of a desired portion using a mouse or a keyboard, which is a key input device 24. When executed, the digital file or digital data of the designated unit is transmitted to the decryption device 30, which is an independent device, through the parallel interface 22 of the PC main body 20.

On the decryptor 30 side, the encrypted digital (audio file) data downloaded from the PC main body 20 is decrypted according to the agreed rules and output to the memory writer 31 side. At this time, the decryption is decoded using the same ID assigned to the decryptor when the encryption of the digital audio file uses the ID as described above.

That is, since the data encrypted in the CD-ROM 10 is not necessarily decrypted unless it is made by the decryptor 30 having the same ID as the CD-ROM, the data contained in the CD-ROM is securely secured. It will be maintained.

The decrypted digital data input to the memory writer 31 is written to the memory card 32 in the memory writer. The memory card 32 may be a flash memory capable of repeatedly rewriting data.

The memory card 32, which downloads and stores digital data of an arbitrary section, is mounted in the slot 45 of the digital data processing device 40 such as an MP3 player, and is connected to the microcomputer 41 in the digital data processing device. The file data is transmitted, and the digital audio signal is processed by the microcomputer 41 according to the operation of the function key input unit 42 of the digital data processing apparatus by the user, and is output as an audio signal through the audio amplifier 44. .

In addition, the text data corresponding to the audio (or music) output of the digital audio file is output as a caption for the caption through the display 43 which may be provided on one side of the digital data processing apparatus 40.

Synchronization of the audio output of the digital data file with the caption data corresponding to the audio data is based on a character data file of n Bytes designated by m Bytes having size information of digital audio (MP3) data as shown in FIG. You can easily match them by finding them.

As described above, in the present invention, when a large amount of learning data is to be used for learning language, music, etc. using a CD-ROM compressed and stored as a digital data file, only the desired section and amount of data are downloaded to the memory card and then portable. By reproducing in a digital data processing device such as an MP3 player, the user can learn anytime, anywhere, anytime, anywhere, depending on the user's will, thereby improving learning efficiency.

In addition, the present invention encrypts the learning program data contained in the CD-ROM, and the decryption of the encrypted learning program data is decrypted only through a dedicated decoder to be downloaded to the memory card learning program developer and learning CD ROM producer according to unauthorized copying Has the effect of preventing the victim from involuntary damage.

In addition, the present invention can output the caption information corresponding to the audio output on the display when the learning data of a specific section on the CD-ROM downloaded to the memory card is reproduced in the digital data processing apparatus can improve the language learning effect have.

Claims (10)

A first step of reading the entire digital data file list of the CD-ROM in which the training data is encrypted through the CD-ROM driver of the PC; a second step of designating the desired learning files among the entire digital data files of the CD-ROM; The third step of downloading the learning data of the specified files to decrypt the encryption, the fourth step of storing the decrypted learning data in the memory card using the memory writer, and the digital learning data contained in the memory card to the function selection key input And a fifth step of outputting an audio signal by processing according to the above. The language learning method using digital data according to claim 1, wherein the encryption of the learning data recorded on the CD-ROM and the decryption of the decryptor use the same ID. The language learning method using digital data according to claim 1, wherein the digital data file contained in the CD-ROM is written in sentence units. 4. The digital audio file according to claim 3, wherein the sentence-based digital audio file includes size information of caption text data, size information of digital audio file data, caption text data, and digital audio file data. Language learning method used. The language learning method using digital data according to any one of claims 1 to 4, wherein the digital data protocol is MP3. PC unit 20 having a magnetic recording medium in which digital audio learning data is encoded, a magnetic recording medium driver for driving the magnetic recording medium, and digital data contained in the magnetic recording medium output from the PC body. Or a decoder 30 for downloading and decrypting a code in a designated section unit, a memory writer 31 for storing a digital card decrypted by the decoder and giving a separate ID to the memory card 32; The digital audio file using a digital audio file, characterized in that it comprises a digital data processing device 40 for outputting the learning audio signal after checking the memory card ID using a predetermined amount of digital audio file data stored in the memory card as a database Learning system. 7. The language learning system using digital data according to claim 6, wherein the magnetic recording medium is a CD ROM. The language learning system using digital data according to claim 6, wherein the digital data processing device (40) is an MP3 player. The MP3 player of claim 8, wherein the MP3 player processes a digital data file input through the slot 45 for interfacing the learning data stored in the memory card 32 as a digital data file, and converts the digital data file into an audio signal. A microcomputer 41, a function key input unit 42 for selecting a function related to reproduction of an audio file on the micom side, and an amplifier for amplifying and outputting an audio signal processed and output from the microcomputer to a headphone terminal ( Language learning system using digital data, characterized in that it comprises a 44). 10. The apparatus of claim 9, wherein the microcomputer 41 is further equipped with a display 43 for displaying the caption text data file to the outside as caption information in synchronization with the audio signal of the MP3 file output through the audio output device. Language learning system using digital data, characterized in that.