KR20040026884A - Method for providing an additional information for MP3 file - Google Patents

Abstract

PURPOSE: A method for offering additional information for an MP3(MPEG level 3) file is provided to quickly offer the addition information for the MP3 file and play the MP3 file by detecting/proving only the additional information corresponding to an item selected from a user. CONSTITUTION: If the user requests an addition information menu through a key input part, a microcomputer displays an addition information menu screen of a GUI(Graphic User Interface) mode on an OSD(On Screen Display)(S11). If the user selects the desired item, the microcomputer stores the selected item in a memory(S12). The microcomputer detects the addition information and the position information for each song from the navigation information of an optical disc, and stores the information in the memory by matching the information with a song number(S22). The microcomputer displays the additional information linked with the song number on the OSD by reading the addition information in the memory(S23).

Description

How to provide additional information about MP3 file {Method for providing an additional information for MP3 file}

The present invention relates to a method for providing additional information on an MP3 file recorded on an optical disc.

In general, when recording MP3 music files on an optical disc (e.g., CD), about 170 songs or more can be recorded.

When an optical disc on which a plurality of MP3 music files is recorded is inserted or mounted, or when there is a play request (or a search request) for the optical disc, all the songs recorded on the optical disc (or a specific song requested to be played or a searched song). ) Detects the additional information and provides it to the user.

The additional information is recorded in a 'Tag' section at the rear of each MP3 music file recorded on the optical disk. That is, as shown in FIG. 1, a 'Tag' section has a title of 30 bytes each. A field, an artist name field, an album name field, a comment field, a four-byte year field, and a one-byte genre field are recorded.

However, in the conventional method for providing additional information on the MP3 file as described above, all additional information (125 bytes or more, song name, artist name, album name, comment, year, genre) for the song is provided. Since it takes a lot of time to read from the optical disc, decode it, store it, and display it, unnecessarily, the playback operation may be unnecessarily delayed. In this case, the user needs additional information (for example, a song name and a singer name). It is difficult to grasp the bay quickly, and in the related art, a large capacity memory must be provided in order to detect and store all the additional information on the songs recorded on the optical disc.

Accordingly, the present invention was created to solve the above problems, and provides only the additional information corresponding to the item selected by the user from among the additional information on the MP3 file, thereby providing additional information on the MP3 file and providing a reproduction operation. The purpose is to provide a method of providing additional information on MP3 files to make this quick.

Fig. 1 shows the data format of the 'tag' section at the end of the MP3 music file.

2 is a block diagram of an embodiment of an optical disk device in which a method of providing additional information on an MP3 file according to the present invention is implemented.

3 is a flowchart of a preferred embodiment of a method of providing additional information for an MP3 file according to the present invention;

4 shows an example of additional information items selected and designated by the user on the additional information menu screen;

FIG. 5 shows the data format of the 'Primary Volume Descriptor' area of the 'Header' section at the head of the MP3 music file.

6 illustrates an example of providing additional information corresponding to an additional information item selected and selected by a user.

※ Explanation of code for main part of drawing

10 optical disc 11: spindle motor

20: Optical pickup 30: R / F part

40: digital signal processor 50: amplifier decoder

60: servo unit 61: drive unit

70: microcomputer 71: memory

80: key input unit 90: OSD

According to an aspect of the present invention, there is provided a method of providing additional information on an MP3 file, including: a first step of reproducing data including additional information from an inserted storage medium; A second step of detecting and storing additional information corresponding to a predetermined additional information item from additional information of the reproduced data; And a third step of providing the detected stored additional information.

Hereinafter, an embodiment of a method of providing additional information on an MP3 file according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of an embodiment of an optical disk apparatus in which the method for providing additional information on an MP3 file according to the present invention is implemented. The spindle motor 11 drives the optical disk 10 to rotate. An optical pickup 20 for reading out a recording signal on the optical disc 10; An R / F unit 30 for filtering the signal detected by the optical pickup 20 and outputting it as a binary signal; A digital signal processor (40) for restoring and outputting the binary signal to original data with its clock synchronized to the binary signal; An amplifier decoder 50 for decoding the song data restored by the digital signal processor 40 into an audible music signal; A drive unit 61 for driving a spindle motor 11 for rotating the optical pickup 20 and the optical disc 10; A servo unit 60 controlling the driving of the drive unit 61 from the tracking error signal T.E and the focusing error signal F.E output from the optical pickup 20 and the rotational speed of the optical disc 10; A memory 71 for storing a user-selected additional information item and start position information of each song; A key input unit 80 for inputting data such as selection of additional information item selection by a user; And a microcomputer 70 for controlling and performing a reproducing operation or the like with respect to the optical disc 10.

3 is a flowchart illustrating a preferred embodiment of a method for providing additional information of an MP3 file according to the present invention. Hereinafter, the method of providing additional information of FIG. 3 according to the present invention will be described in detail with reference to FIG. 2. Explain.

First, when the user requests the 'additional information menu' through the key input unit 80 (S10), the microcomputer 70 is a graphical user interface (GUI) scheme as illustrated in FIG. The additional information menu screen is displayed and displayed on the OSD 90 (S11). Accordingly, the user selects a desired additional information item on the additional information menu screen displayed on the OSD 90 through the key input unit 80. (Field name) is selected and specified, as shown in FIG.

When the user selects the desired additional information item as described above, the microcomputer 70 stores the selected additional information item (for example, title and artist name) in the memory 71 to store the selected additional information item. It will be remembered (S12).

In this state, when the optical disc 10 in which a plurality of MP3 music files are recorded is inserted and mounted (or a play request for the optical disc 10) (S20), the microcomputer 70 is connected to the optical disc ( 10) to play all the songs (or playback requested songs) recorded on the optical disc 10. At this time, since the navigation information, which is the reproduction control information for all the songs, is recorded on the optical disc 10, the micom 70 Can detect the starting position information of each song from the navigation information.

Therefore, the microcomputer 70 searches for each song from the optical disc 10 based on the start position information of each song, and sequentially plays the retrieved songs, and at the rear end of each of the songs being played. From the additional information recorded in the 'Tag' unit, the microcomputer 70 detects additional information items stored in the memory 71 according to a user's selection, that is, for each song. Only information on the name of the song and the name of the singer is detected.

The micom 70 detects not only the additional information but also the position information of each song. For this purpose, the micom 70 includes a 'header' at the head of the reproduced song. Primary Volume Descriptor 'area to detect information recorded in the' Volume Set Size ',' Volume Sequence Number ',' Logical Block Size ', and' Path Table Size 'fields in the' Primary Volume Descriptor 'area, respectively. .

Since the detected information is decoded by the amplifier decoder 50 and applied to the microcomputer 70, the microcomputer 70 detects additional information (song name and artist name) and location information of each song (S21). The microcomputer 70 stores the location information and additional information (song name and singer name) for each song in one-to-one correspondence with the corresponding song number (S22). ).

In addition, the microcomputer 70 reads additional information about each song (or a song requested to be played or a song requested to be searched) from the memory 71 and associates with the corresponding song number on the OSD 90. The output is displayed (S23), an example of which is shown in FIG.

In this way, the user can quickly grasp desired additional information about the song, that is, the song name and singer name of the song.

Unlike the above embodiment, when the user sets the additional information items, for example, the name of the song and the name of the singer, which are most needed by the user for the MP3 music file, the user, as described above, Even if the additional information item is not selected, the microcomputer 70 detects, stores, and provides only additional information (for example, a song name and a singer name) corresponding to a preset additional information item among the additional information about each song. It may be.

The above-described preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art can improve, change, and substitute various other embodiments within the technical spirit and scope of the present invention disclosed in the appended claims below. Or addition may be possible.

The additional information providing method for the MP3 file according to the present invention as described above uses a large-capacity memory because only the additional information corresponding to the item selected by the user is detected and stored among the additional information on the MP3 file recorded on the optical disc. Since it is not necessary to reduce the unit cost of the device, and by detecting only the additional information corresponding to the item selected by the user as described above, the detection operation of the additional information is performed quickly, and thus, the provision and reproduction of the additional information can be performed quickly. It is a very useful invention to be made.

Claims (10)

A first step of reproducing data including additional information from an inserted storage medium; A second step of detecting and storing additional information corresponding to a predetermined additional information item from additional information of the reproduced data; And And a third step of providing the detected and stored additional information. The method of claim 1, The additional information item designated in the second step is an item selected and selected by a user among a plurality of items of the additional information. The method of claim 1, The second step, the additional information providing method for the MP3 file, characterized in that also detects and stores the location information of the data. The method of claim 3, The additional information is detected from a tag section of the data, and the location information is detected from a header section. The method of claim 1, The additional information includes song information such as title (Title), artist name (Artist), genre (Genre), etc. The additional information providing method for the MP3 file. The method of claim 5, The additional information item previously designated in the second step is a song name and a singer name. A first step of reproducing data including additional information from an inserted storage medium; A second step of detecting and reproducing additional information corresponding to a predetermined additional information item from the additional information of the reproduced data; And And a third step of providing the additional information to be detected and reproduced. The method of claim 7, wherein The predetermined additional information item of the second step is an item selected by the user among a plurality of items of the additional information. The method of claim 8, The additional information is an additional information providing method for an MP3 file, characterized in that the detection from the tag (Tag) portion of the data. A first step of reproducing data including additional information from an inserted storage medium; A second step of detecting only additional information corresponding to a predetermined additional information item among the additional information in the reproduced data; And And a third step of decoding the detected additional information in a predetermined manner and outputting the displayed additional information on a screen.