KR0159021B1 - Lingual study information recording method for compact disc - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recording language learning information of a compact disc, wherein the sub-cue data and N times language learning data are recorded once per second in 13.3 milliseconds (ms) in the general signal area of the compact disc. The recording efficiency was increased, and a compact disc for language learning was realized.

Description

How to record language learning information on a compact disc

1 is a schematic block diagram for performing a language learning information recording method of a compact disc player according to the present invention.

FIG. 2A is a diagram showing a recording format of data recorded on a conventional compact disc,

(b) is a diagram showing a recording format of data recorded on a compact disc according to the present invention.

* Explanation of symbols for main parts of the drawings

1: compact disc 2: pickup

3: preamplifier 4: digital signal processor

5: RAM 6: Digital Filter

7: Digital / Analog Converter 8: Voice Signal Processing Unit

9: display unit 10: microcomputer

The present invention relates to a method for recording language learning information on a compact disc, and more particularly, by alternately recording sub-queue data and language learning data using sub-cue data repeatedly recorded in a general signal area of a compact disc. The present invention relates to a method for recording language learning information of a compact disc, which extends the use range of the compact disc and realizes the compact disc for language learning.

In general, a compact disc has a volume of audio data that can be reproduced for at least one hour on a disc of 12 cm in diameter. Since the high-density voice data recorded in this way is reproduced in a non-contact manner by pickup, the track on which the voice data is recorded is not worn and its life is semi-permanent. In addition, since a large amount of audio data is digitally recorded on the compact disc, no signal deterioration occurs, so the signal-to-noise ratio (S / N ratio) is higher than 90 decibels (dB), which is much higher than that of a conventional disc. The reflective film of aluminum is coated on the part where the voice data is recorded, which shows a very strong property against external impact.

On the other hand, a large amount of voice data and program data indicating various information about the corresponding voice data are simultaneously recorded on the compact disc. That is, a compact disc is generally divided into three areas: a lead in area, a general signal area, and a lead out area. General audio data is recorded in the general signal area and general in the lead in area. Various program data for the audio data recorded in the signal area are recorded. In the lead-out area, program data indicating that all information on the compact disc has been reproduced is recorded. Therefore, the program data for the various voice data in the general signal area selected by the user is detected from the lead-in area to determine the location of the information, and then the pickup is transported to the track on which the information is recorded for playback. Any one of the plurality of audio data recorded in the above can be selectively reproduced.

On the other hand, in the general signal area, sub-Q data indicating information of the voice data currently being reproduced is recorded every 13.3 milliseconds (ms). The 80 bits are used for this sub-queue data and include information on an address, a song number, an index, a time required for corresponding information, and the like. The total time required for the song and other information are detected from the sub-cue data, and the compact disc player analyzes the detected information and displays the information on the display panel, so that the user can recognize the information about the song. .

By the way, the sub-queue data is detected about 75 times per second, and the time information is generally displayed in units of seconds. Therefore, the 80-bit sub-queue data is overwritten by about 6000 bits per second, which causes a problem that a large amount of information is lost in the compact disc.

Accordingly, an object of the present invention is to solve the above-described problem, and an object of the present invention is to efficiently record various information on a compact disc by using sub-cue data that is duplicated and recorded about 75 times per second as language learning data. The present invention provides a method of recording language learning information on a compact disc.

The special object of the present invention for achieving the above object is that of a compact disc which alternately records one sub-cue data and N times of language learning data between the audio data recorded in the general signal area of the compact disc. It is in the method of recording language learning information.

However, here, N is a natural number within 1 to 74.

In the present invention, in the above-described recording method, it is preferable that one sub-queue data and one language learning data are repeatedly recorded.

The language learning data can also be set as subtitle data.

Hereinafter, a preferred embodiment of a language learning information recording method of a compact disc according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a schematic block diagram of a typical compact disc player.

1, a pickup 2 for detecting audio data and program data recorded on the compact disc 1, and a pre-amplification for amplifying the audio data and program data detected at the pickup 2 to a size suitable for signal processing. RAM for temporarily storing program data separated by the amplifier 3, the digital audio data amplified by the preamplifier 3 and the program data, and program data separated by the digital signal processor 4 ( 5) and a digital filter 6 for filtering out noise components among the digital voice data separated by the digital signal processor 4, and for converting pure digital voice data filtered by the digital filter 6 into analog voice data. A voice signal processing section 8 for signal-processing the analog voice data converted by the digital / analog converter 7 and the analog / analog converter 7 and finally outputting the processed signal; Recorded in the program area of the boot disk (1) sub-it consists of the display unit 9, and a preorder microcomputer 10 for controlling each component parts of a signal processing and displaying the cue data and the caption data.

The operation of the present invention having the configuration as described above will be described with reference to FIG.

When the regeneration function is selected by the user, the microcomputer 10 outputs a control signal to the spindle motor (not shown) to drive the spindle motor. When the spindle motor is driven, the compact disc 1 mounted on the shaft axis of the spindle motor is rotated at the same time. As the compact disc 1 is rotated, the program data of the lead-in area and the digital audio data of the general signal area detected by the pickup 2 are applied to the preamplifier 3 and amplified to a predetermined size suitable for signal processing. Here, program data of the lead-in area amplified by the preamplifier 3 is temporarily stored in the RAM 5 through the digital signal processing unit 4. Therefore, various kinds of information of the audio data recorded in the general signal area of the compact disc 1 are detected from the RAM 5 in accordance with the user's selection.

On the other hand, the digital audio data amplified by the preamplifier 3 is supplied to the digital filter 6 after being separated from the program data of the lead-in area through the digital signal processor 4, and the digital filter 6 is applied. The noise component of the voice data is filtered to output only pure voice data. The voice data thus output is converted into analog voice data by the digital-to-analog converter 7 and then signal-processed by the voice signal processor 8 so that the voice signals of the left L and the light R are finally output. do.

On the other hand, as shown in (a) and (b) of FIG. 2, the audio data recorded in the general signal area of the compact disc 1 includes 80-bit sub-queue data and language learning data every 13.3 ms. When only sub-cue data is recorded as in the conventional case, the number, duration, and total time of the song are displayed on the display panel mounted on the compact disc player. When the sub-cue data and the subtitle data are alternately recorded as in the present invention, the subtitles according to the voice data are alternately displayed, as well as the number and duration of the song and the total time required.

That is, the sub-cue data and the subtitle data recorded on the compact disc 1 are detected by the pickup 2, amplified by the preamplifier 3, and then signal-processed by the digital signal processing section 4. The signal-processed sub-cue data and subtitle data are supplied to the display unit 9 via the microcomputer 10 and displayed. At this time, the sub-cue data indicates the number and duration of the song and information on the total time required. Since the duration of the song changes per second, the sub-cue data is alternately recorded up to one time per sub-cue data and about 72 subtitle data. You may.

However, in order for the compact disc player to perform a more efficient recording and reproducing process, for example, it is desirable to record sub-cue data at odd numbers and subtitle data at even numbers. This is because the sub-queue data contains four bits of address data, which indicates the recording position of the voice data. Therefore, it is preferable to detect the sub-queue data in a certain order in order to detect the correct voice data. . In this case, the caption data can be further recorded at a capacity of at least about 3000 bits per second, thereby increasing the recording efficiency of the compact disc.

As described above, according to the language learning information recording method of the compact disc according to the present invention, a part of the sub-cue data repeatedly recorded every 13.3 ms in the general signal area of the compact disc is replaced with subtitle data, thereby making it compact. There is an advantage that a compact disc for language learning can be realized while at the same time realizing the information recording of the disc.

Claims (3)

A method for recording language learning information on a compact disc in which one sub-cue data and N times language learning data are alternately recorded between audio data recorded in a general signal area of the compact disc. In the third stage, N is a natural number within 1 to 74. 2. The method for recording language learning information of a compact disc player according to claim 1, wherein one sub-queue data and one language learning data are repeatedly recorded. The method for recording language learning information of a compact disc player according to claim 1 or 2, wherein the language learning data is subtitle data.