KR20020022143A - Disc identifying method for optical disc reader/writer - Google Patents

Abstract

A disc discrimination method in an optical recorder according to the present invention comprises the steps of: acquiring TOC information of an inserted disc; Grasping, from the obtained TOC information, attribute information of a file recorded on the inserted disc; And determining the type of the inserted disc by using the identified attribute information of the file.

Here, in the case where the extension of the file recorded on the inserted disc is 'mp3', the file is determined to be a file in which the MP3 (MP3) songs are stored, and when the extension of the file recorded on the inserted disc is 'wav', The file is identified as a file containing audio songs.

In addition, a disc discrimination method in an optical recorder according to the present invention comprises the steps of: acquiring TOC information of an inserted disc; Grasping, from the obtained TOC information, attribute information of a file recorded on the inserted disc; Acquiring the header information of the file when the file extension of the file recorded on the inserted disc is 'mp3' as a result of identifying the attribute information of the recorded file; Determining, from the obtained header information of the file, whether the file constitutes a normal MP3 stream; And if the file constitutes a normal MP3 stream, determining the file as a file containing MP3 songs, and determining the inserted disc as a disc containing MP3 songs.

Description

Disc identification method for optical disc reader / writer

The present invention relates to an optical recorder, and in particular, the type of a disc inserted into the optical recorder is determined as an audio file / song recording disc, MP3 (MP3) file / song recording disc, general data file / song recording disc, and the like. The present invention relates to a disc discrimination method of an optical recording / reproducing apparatus capable of performing normal reproduction of files / songs recorded on the inserted disc.

Today, audio compact discs have become an essential audio medium, with the popularity of compact disc players, which has gained tremendous popularity due to the excellent sound quality. Also, with the spread of portable compact disc players, music recorded on compact discs can be heard on the go.

On the other hand, due to the appearance of a double deck audio compact disc player / recorder, anyone can record their own voice or other compact disc music on a blank compact disc at home without the aid of a computer. You can make your own compact disc.

In addition, with the spread of the Internet environment, music using a computer is conveniently made available through a file in the form of MP3 (one of the high-quality audio compression techniques defined by MPEG1). The MP3 file / song can be downloaded and used through a network such as the Internet. Accordingly, there is a wide spread of portable MP3 files / song players capable of playing such MP3 files / songs.

On the other hand, thanks to the activation of the use of MP3 files / songs, studies on the optical recording player that can reproduce the existing audio files / songs and MP3 files / songs in one device is actively progressed.

However, these MP3 files / songs and the existing audio files / songs have different configurations. Therefore, in order to reproduce the files / songs recorded on the disc into which the optical recorder is inserted, the files stored on the inserted disc / The composition of the song should be understood, and the playback process should be performed according to the type of disc inserted.

The present invention has been created in view of the above circumstances, and the type of disc to be inserted into the optical record player is determined as an audio file / song recording disc, MP3 file / song recording disc, general data file recording disc, and the like. It is an object of the present invention to provide a disc discrimination method in an optical recording / reproducing apparatus capable of normally performing reproduction of files / songs contained in a recorded disc.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram schematically showing the configuration of an optical recorder capable of reproducing an MP3 file / song in accordance with the present invention.

2 is a flowchart showing a process of determining the type of disc to be inserted in the optical recorder employing the disc discrimination method in the optical recorder according to the present invention.

FIG. 3 is a flowchart illustrating a process of discriminating plain text data and MP3 data contained in an incoming disc in an optical record player employing the disc discrimination method in the optical record player according to the present invention. FIG.

<Explanation of symbols for main parts of the drawings>

101 ... disc 102 ... disc determination unit

103 ... micom 104 ... audio playback section

105 ... MP3 playback section 106 ... Output section

Disc discrimining method in the optical recorder according to the present invention to achieve the above object,

(a) acquiring Table Of Content (TOC) information of the inserted disc;

(b) identifying, from the obtained TOC information, attribute information of a file recorded on the inserted disc; And

and (c) determining the type of the inserted disc by using the attribute information of the file identified in step (b).

Here, in the step (b), in identifying the attribute information of the file recorded on the inserted disc, the attribute is identified using the extension information of the stored file from the TOC information obtained from the inserted disc. There is this.

If the extension of the file recorded on the inserted disc is 'mp3', the file is determined to be a file containing MP3 (MP3) songs, and if the extension of the file recorded on the inserted disc is 'wav', The feature is that the file is identified as a file containing audio songs.

In addition, in order to achieve the above another object, the disc discrimination method in the optical recorder according to the present invention,

(i) acquiring Table Of Content (TOC) information of the inserted disc;

(j) identifying the attribute information of the file recorded on the inserted disc from the obtained TOC information;

(k) acquiring the header information of the file when the file extension of the file recorded on the inserted disc is 'mp3' as a result of identifying the attribute information of the recorded file;

(l) determining, from the header information of the obtained file, whether the file constitutes a normal MP3 stream; And

(m) As a result of the determination in step (l), when the file constitutes a normal MP3 stream, the file is identified as a file containing MP3 songs, and the inserted disc is determined as a disc containing MP3 songs. The feature is that it comprises a step.

Here, when the determination result in step (l) indicates that the file does not constitute a normal MP3 stream, the file is identified as a file that contains plain text data. .

According to the present invention as described above, the type of disc to be inserted into the optical recorder is determined as an audio file / song recording disc, an MP3 file / song recording disc, a general data file recording disc, and the like. There is an advantage in that the playback on the normal can be performed.

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

1 is a block diagram schematically showing the configuration of an optical recorder capable of reproducing MP3 files / songs according to the present invention.

Referring to FIG. 1, an optical recording / reproducing apparatus capable of reproducing a general MP3 file / song includes a disc 101 to be inserted, a disc discrimination unit 102 to grasp attributes of the file / song contained in the disc 101; , The microcomputer 103 performing overall control, the audio reproducing unit 104 reproducing the audio file / song transmitted from the disc determining unit 102, and the MP3 file / s transmitted from the disc determining unit 102. And an output unit 106 for outputting signals reproduced from the audio reproducing unit 104 and the MP3 reproducing unit 105.

Next, a process of determining the type of the disc to be inserted in the optical recorder having the above configuration will be described with reference to FIG. 2 is a flowchart illustrating a process of determining the type of disc to be inserted in the optical recorder employing the disc discrimination method in the optical recorder according to the present invention.

First, the disc discrimination unit (see 102 in FIG. 1) of the optical recorder acquires TOC (Table Of Content) information of the inserted disc 101 (step 201). Here, the TOC means information in which the attributes of the files / songs recorded on the disc, the number of files / songs, the playing time of each file / song, the address information of each file / song, etc. are recorded.

On the other hand, the disc discrimination unit 102, which has acquired the TOC information of the disc inserted in step 201, grasps the attribute information of the file / song contained in the disc 101 inserted from the obtained TOC information (step 202). .

Here, in determining the attribute information of the file / song recorded in the inserted disc 101, the disc discrimination unit 102 obtains the extension information of the recorded file / song from the TOC information obtained from the inserted disc 101. To identify its properties.

For example, when the extension of a file / song recorded on the inserted disc 101 is 'mp3', the disc discrimination unit 102 determines the file / song as a file / song including an MP3 song, and the MP3 playback unit. The signal is reproduced via 105.

In addition, when the extension of a file / song recorded on the inserted disc 101 is 'wav', the disc discrimination unit 102 determines the file / song as a file containing audio songs, and the audio reproducing unit 104 Play the signal through).

As described above, the disc determining unit 102 determines the type of the inserted disc 101 by using the identified attribute information of the file / song, and stores the file / file recorded by a reproducing method suitable for the inserted disc 101. The song can be played normally (step 203).

On the other hand, when the TOC information of the inserted disc is obtained and the type of disc is determined using the attribute information of the file / song recorded on the disc from the TOC information, The file / song may not be played back normally.

In the case where the file / song attribute is recorded in MP3, the process of reproducing the file recorded on the disc will be described with reference to FIG. 3 is a flowchart illustrating a process of discriminating plain text data and MP3 data contained in an incoming disc in an optical record player employing the disc discrimination method in the optical record player according to the present invention.

First, the disc discrimination unit (see 102 in FIG. 1) of the optical recorder acquires TOC information of the inserted disc 101 (step 301). Then, from the TOC information obtained from the inserted disc 101, the attribute information of the file / song contained in the inserted disc 101 is grasped (step 302).

At this time, when the attribute information of the file / song recorded in the step 302 is checked, when the extension of the file / song recorded on the inserted disc is 'mp3', the header information of the file / song is obtained (step 303). In this case, the information on the header of the file / song may be performed by the disc determining unit 102 or by the MP3 reproducing unit 105 according to the design of the optical recorder.

For example, the disc discrimination unit 102 transmits the file / song to the MP3 playback unit 105 to reproduce the file / song if the extension of the recorded file / song is 'mp3' as a result of the determination in step 302. Accordingly, the MP3 playback unit 105 may be implemented to obtain header information for the file / song transmitted to play.

On the other hand, the optical recorder judges from the header information of the file / song obtained in step 303 whether the file / song header information constitutes a normal MP3 stream (step 304).

At this time, when the determination result in step 304, if the header information of the recorded file / song constitutes a normal MP3 stream, the file / song is determined to be a file / song containing the MP3 song, and the inserted disc 101 Is identified as the disk containing the MP3 song (step 305).

In the case where the MP3 playback unit 105 determines whether the MP3 file / song is normal through the header information of the file / song recorded in the MP3 playback unit 105, the determination operation is performed while the other MP3 song is played.

In addition, even when the file / song to be judged is not a normal MP3 file / song, the judgment operation is performed in one second of a few minutes, and because it skips playback of the song and plays the next song, When viewed in the overall playback environment, it can be designed so as not to affect the playback of MP3 files / songs.

On the other hand, when the determination result in step 304, if the header information of the recorded file / song does not constitute a normal MP3 stream, it is determined that the file / song is a file / song containing the text data (text data) (Step 306).

Accordingly, the audio reproducing unit 104 or the MP3 reproducing unit 105 skips the file / song without reproducing it and reproduces another file / song.

As described above, according to the disc discrimination method of the optical recorder according to the present invention, the type of disc to be inserted into the optical recorder is determined as an audio recording disk, an MP3 recording disk, a general data recording disk, or the like. There is an advantage that the reproduction of the file contained in the inserted disc can be normally performed.

Claims (6)

(a) acquiring Table Of Content (TOC) information of the inserted disc; (b) identifying, from the obtained TOC information, attribute information of a file recorded on the inserted disc; And and (c) determining the type of the inserted disc using the attribute information of the file identified in step (b). The method of claim 1, In the step (b), in determining the attribute information of the file recorded on the inserted disc, the attribute is identified using the extension information of the recorded file from the TOC information obtained from the inserted disc. Disc discrimination method in the player. The method of claim 2, The file discrimination method of the optical recording and reproducing apparatus, characterized in that the file is recorded as an MP3 (MP3) file when the file extension of the file recorded on the inserted disc is 'mp3'. The method of claim 2, If the extension of the file recorded on the inserted disc is "wav", the disc is discriminated as a file containing audio songs. (i) acquiring Table Of Content (TOC) information of the inserted disc; (j) identifying the attribute information of the file recorded on the inserted disc from the obtained TOC information; (k) acquiring the header information of the file when the file extension of the file recorded on the inserted disc is 'mp3' as a result of identifying the attribute information of the recorded file; (l) determining, from the header information of the obtained file, whether the file constitutes a normal MP3 stream; And (m) As a result of the determination in step (l), when the file constitutes a normal MP3 stream, the file is identified as a file containing MP3 songs, and the inserted disc is determined as a disc containing MP3 songs. Disc discrimination method in the optical recorder, characterized in that it comprises a step of. The method of claim 5, As a result of the determination in step (l), when the file does not constitute a normal MP3 stream, the file is discriminated as a file in which plain text data is stored. Disk determination method.