KR100745262B1 - Method for recording and managing audio data on rewritable medium - Google Patents

Abstract

The present invention relates to an audio data recording management method of a rewritable recording medium, comprising: a rewritable recording medium in which tracks of audio data recorded with temporal continuity are recorded and stored; Setting step 1; And generating and recording the set reproduction mode on management information for logically managing the tracks, wherein the recording mode is a recording unit of audio data recorded on a rewritable recording medium such as a DVD-RAM. By reading and playing tracks in various playback modes, or by allowing the user to arbitrarily set the number of playbacks, a plurality of tracks managed by a playlist are randomly played in a user's desired playback order, or tracks that have already been played are repeated. It is a very useful invention that it is possible to perform a shuffle regeneration operation to prevent reproduction, and to replay the reproduction number of times by the user.

DVD RAM, Playlist Search Pointer, Random Play Mode, Shuffle Play Mode, Play Count

Description

Method for recording and managing audio data on rewritable medium}             

1 shows a configuration of a general optical disk device,

2 and 3 illustrate general audio data management information.

4 shows audio data management information generated and recorded by the audio data recording management method according to the present invention;

5 and 6 illustrate an audio selection menu screen according to the present invention.

Fig. 7 shows a playback order for audio tracks reproduced by the audio data recording management method according to the present invention.

※ Explanation of code for main part of drawing

1: DVD-RAM 2: Optical Pickup (P / U)

3: record signal processor 4: encoder (Encoder)

5: Sampler 6: System Control

7 memory 8 playback signal processing unit

9: Decoder

The present invention relates to a method of recording and managing audio data on a rewritable recording medium such as a DVD-RAM.

First, a recording medium capable of recording and storing high quality digital audio data, such as an optical disc such as a compact disc (CD), is the most widely used digital audio recording medium currently used. It is possible to record and store digital audio data permanently. Recently, Digital Versatile Disc (DVD), a large-capacity and high-density optical disc capable of recording and storing high-definition video data for a long time, has been developed and released. In the case of DVD, not only high-quality digital audio data but also high-definition video data can be recorded and stored, such as DVD-ROM for playback, DVD-R that can be written once, and DVD-RAM that can be rewritten. .

Meanwhile, the rewritable recording medium, particularly the DVD-RAM, is a high-density optical disc that is currently undergoing specific standardization, and when a rewritable recording medium such as a DVD-RAM is developed and released and is commonly used, a user may want to move his / her video data. In addition, the audio data can be recorded for a long time. A method of recording and managing audio data on a rewritable recording medium such as the DVD-RAM will be described below.

First, FIG. 1 shows a partial configuration of an optical disk apparatus to which a general audio data recording management method is applied. The optical disk apparatus reads a signal recorded on a rewritable recording medium such as a DVD-RAM 1, Or an optical pickup 2 for recording an input signal processed data stream from the outside; A reproduction signal processing unit (8) for processing reproduction signals of the signals read out from the optical pickup (2); A decoder (9) for decoding the reproduction signal and outputting the original audio data; A sampler 5 for sampling and converting an analog signal received from an external source into digital data; An encoder (4) for encoding the converted and output digital data by using an amplifier (MPEG) method, an LPCM method, an AC-3 method, or the like; A recording signal processor (3) for converting the encoded digital data into a format suitable for recording to process a recording signal; A system controller (6) for controlling the operation of the constituent means in response to a user request; And a memory 7 for storing data necessary for the operation of the system controller.

In the sampler 5 of the optical disk device configured as described above, the analog audio signal received from the outside is sampled at a predetermined frequency, converted into digital audio data, and then output to the encoder 4, and the encoder 4 In the digital audio data which is converted and output is encoded in various ways, and output to the recording signal processor 3,

Accordingly, the recording signal processing unit 3 records and stores the encoded audio data on the rewritable recording medium 1, wherein the recorded audio data is a track unit that is a recording unit having a temporal continuity. The track is a logical recording unit different from a track, which is a physical recording area commonly referred to as an optical disc. The track may correspond to one track when copied from a disc recording medium such as a CD or a DVD. It can also correspond to one piece of audio when recorded through a microphone, broadcast, etc., and is typically used as a logical recording unit corresponding to one piece of audio, while audio data is recorded on a rewritable recording medium. When recording again or deleting or editing some of the recorded and stored audio data, as shown in FIG. The tracks are divided into a number of tracks (TK1, TK2 ...), while the plurality of tracks are controlled by a play list (PL: Play List), which is one of management information for managing and controlling the reproduction operation of recorded audio data. Managed in list form.

On the other hand, program chain information (PGC: Program Chain) generated corresponding to the play list includes a plurality of playback control information (Cell1, Cell2) in which recording start positions, recording end positions, and the like, of the logical partitioned track-specific audio data are recorded and managed. As information on the connection order of ..., the following describes an audio data reproducing operation for reproducing a track of audio data divided and recorded as described above.

First, FIG. 3 illustrates a configuration of real time recording audio management information (RTR_AMGI), and the real time recording audio management information includes an audio management information management table (AMGI_MAT) and A playlist search pointer table (PL_SRPT: PL_Search Pointer Table) includes a field (PL_SRPTI) in which information about a playlist search pointer table is recorded, and a plurality of playlist pointers (PL_SRP # 1). And a field in which 2 ... are recorded, and the playlist search pointer PL_SRP includes a playlist type (PL_TY: PL Type); Program chain number (PGCN); Play list creation time information (PL_CREATE_TM); Primary Text Information (PRM_TXTI), Information Table Text Search Pointer Number (IT_TXT_SRPN); And representative picture information (REP_PICTI: Representative Picture Information). In the system controller 6, when any one playlist search pointer recorded in the real-time recorded audio management information is selected from a user, The program chain number (PGCN) recorded in the selected playlist search pointer is searched, and the playback control information (Cell) of the program chain corresponding to the searched number is searched. The positional information on the audio data recording start position and the recording end position is recorded and recorded, so that the track of the playlist selected by the user is read out and played back sequentially.

However, as described above, since the tracks of the playlist are simply read-out sequentially, various play modes for the tracks of the playlist, for example, randomly accessing the tracks, are read out and played out in sequence. Or a user request for allowing the user to arbitrarily set various playback modes such as randomly reading and playing the tracks while shuffling such that the already played tracks are not repeatedly played. It is expected that there will be a need, but there is no solution yet, so the solution is urgently needed.

Accordingly, the present invention has been made to solve the above-described problems, and includes a playback mode in which a user arbitrarily sets tracks which are recording units of audio data recorded on a rewritable recording medium such as a DVD-RAM. According to the number of times of playback, there is provided an audio data recording management method of a rewritable recording medium that can be read out and reproduced in various playback modes such as sequential playback, random playback or shuffle playback, and repeated playback by the number of playbacks, The purpose is.

Audio data recording management method of a rewritable recording medium according to the present invention for achieving the above object is a track of the audio data in a rewritable recording medium in which tracks of audio data recorded with temporal continuity are recorded and stored. Setting a play mode for the children; And generating and recording the set reproduction mode on management information for logically managing the tracks.

Hereinafter, a preferred embodiment of an audio data recording management method of a rewritable recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 4 illustrates a configuration of real time recording audio management information (RTR_AMGI) generated and recorded by the audio data recording management method according to the present invention. The real time recording audio management information described above with reference to FIG. As described above, an audio management information management table AMGI_MAT and a playlist search pointer table PL_SRPT are included. In the playlist search pointer table, a field PL_SRPTI in which information about a playlist search pointer table is recorded, And a field in which a plurality of playlist search pointers (PL_SRP # 1,2 ...) are recorded. The playlist search pointer (PL_SRP) includes a playlist type (PL_TY); Program chain number (PGCN); Play list creation time information (PL_CREATE_TM); Main text information (PRM_TXTI); Information table text search pointer number (IT_TXT_SRPN); And Play Mode information for the user to arbitrarily set the playback order for the plurality of tracks TK1, TK2 .. managed by the play list PL, in addition to the representative video information REP_PICTI information. And loop count information for the user to arbitrarily set the number of reproduction of tracks to be read out and reproduced according to the reproduction mode information.

On the other hand, the play mode information arbitrarily set by the user includes a sequential play mode for sequentially reading out and playing back a plurality of tracks managed by the play list, and randomly accessing the tracks. Random Play mode for reading and playing in a predetermined play order, and Shuffle Play for randomly reading and playing the tracks while shuffling so that already played tracks of the tracks are not repeatedly played. The mode can be selectively recorded, and the play mode information and the play count information for reading out and playing back a plurality of tracks by the track-by-track playback order arbitrarily set by the user as described above are stored in the play list search pointer PL_SRP. Audio recording management method for recording management and audio data reproduction operation accordingly, The explanation is as follows.

First, the sampler 5 of the optical disk device samples the analog audio signal received from the outside at a predetermined frequency, converts the digital audio data into digital audio data, and outputs the result to the encoder 4. The encoder 4 converts the output. Since the digital audio data is encoded in various ways and output to the recording signal processing unit 3, the recording signal processing unit 3 records and stores the encoded audio data on the rewritable recording medium 1. At this time, the system control unit 6 transfers the play mode information and the number of play times set by the user to the play list search pointers PL_SRP # 1,2 ... of the real-time recorded audio management information RTR_AMGI. The playback order for the plurality of tracks TK1, TK2 .. managed by the playback list PL by recording management is stored in the playback mode information arbitrarily set by the user. Therefore, the playback operation can be performed sequentially, randomly, or shuffledly reproduced, and the number of times of reproduction of the tracks read and reproduced as described above can be repeatedly reproduced as many times as the number of times corresponding to the number of times of playback. Control.

For example, the system controller 6 searches for the real-time recorded audio management information (RTR_AMGI) described above in order to allow the user to check or arbitrarily set the playback mode and the number of times of playback. As shown in Fig. 5, a selection menu screen for the plurality of play list search pointers PL_SRP recorded and managed in the search pointer table PL_SRPT is displayed on the screen.

Subsequently, when the user selects and designates any one playlist search pointer, for example, the first playlist search pointer PL_SRP 1, the user searches for the first program chain PGC 1 corresponding thereto. The reproduction mode information and the reproduction frequency information recorded and managed by the first reproduction list search pointer are searched to display the searched corresponding information on the detailed menu screen as shown in FIG.

That is, the user variably sets or confirms the play mode for the three tracks TK1, TK2, and TK3 of the first play list corresponding to the first program chain, the play order for each track, and the play count thereof. Will be displayed on the screen.

Accordingly, the user can check the playback mode for the first program chain corresponding to the first playlist search pointer selected by the user through the detailed menu screen, and as shown in FIG. 6, the playback mode is randomly selected. It is possible to variably set the play, shuffle play or sequential play modes, and to set the play order for each track variably. For example, three tracks TK1 and TK2 of the first play list PL1 can be set. Sets the playback order of the first track TK1 first among the TK3, sets the playback order of the third track TK3 second, and the last order of playback of the first track TK1. At the same time, the number of times of reproduction of the tracks can be set to two.

In this case, as shown in Fig. 7, the system controller 6 reads and reproduces the second track of the first play list PL 1 first, and then plays the third track second. And a random reproducing operation of reading out and reproducing the first track to the third and last track, and controlling the reproducing operation so that the random reproducing operation is repeatedly performed twice in succession.

On the other hand, when the user variably sets the playback mode for the first program chain to shuffle play through the detailed menu screen shown in FIG. 6 and specifies that the third track is not repeatedly played, the system control unit ( In 6), after the second track of the first play list PL1 is first read out and played back, the third track is played secondly, and then the first track is read out and played back last and third randomly. If the playback operation is to be performed, but the playback is repeated two times consecutively, after the second track is read out and played back, the shuffle playback operation of playing the first track immediately after the third track is shuffled is performed. The playback operation is controlled as much as possible.

Therefore, the user arbitrarily variably sets the playback order for a plurality of tracks logically partitioned and managed by the playlist, and sets the playback mode to various playback modes such as sequential playback, random playback, or shuffle playback, The number of times of reproduction can be specified arbitrarily.

For reference, the real-time recording audio management information (RTR_AMGI) including the play mode information and the play count information is temporarily stored in the memory 7 of the optical disk device when the rewritable recording medium is inserted into the optical disk device. And the reproduction mode information and the number of reproduction times, which are variably set by the user, are recorded and stored on the rewritable recording medium so that the reproduction mode information and reproduction, which are variably set by the user, even when the rewritable recording medium is discharged from the optical disk device The recovery information can be recognized and confirmed by another optical disk device.

Above, preferred embodiments of the present invention described above are disclosed for the purpose of illustration, those skilled in the art will be able to change, replace or add through the spirit and scope of the present invention disclosed in the appended claims.

In the audio data recording management method of a rewritable recording medium according to the present invention as described above, tracks, which are recording units of audio data recorded on a rewritable recording medium such as a DVD-RAM, are read and reproduced in various reproduction modes. Or by allowing the user to arbitrarily set the number of times of playback, the shuffle play operation for randomly playing a plurality of tracks managed by the playlist in the order of the user's desired playback, or for preventing already played tracks from being repeatedly played. It is a very useful invention that can be carried out, and that the number of times of reproduction can be repeatedly reproduced by the number of times set by the user.

Claims (8)

In a recording medium in which tracks of audio data recorded with temporal continuity are recorded and stored, Setting the number of reproductions together with a reproduction mode for the tracks of the audio data; And And generating and recording the set reproduction mode on the management information of the audio data. delete The method of claim 1, And said step 2 generates and records the set reproduction mode and the number of reproductions thereof on the management information of the audio data. The method of claim 1, And the reproduction mode is a random play mode in which the tracks are randomly accessed for reading and reproducing. The method of claim 1, And the playback mode is a shuffle play mode that randomly reads and reproduces corresponding tracks while shuffling so that already played tracks of the tracks are not repeatedly played. The method of claim 1, And the reproduction mode is a sequential playback mode for sequentially reading out and reproducing the tracks. The method of claim 1, And the management information is play list search pointer information for logically managing the tracks. The method of claim 3, wherein And said step 2 records information on the reproduction mode and the number of reproduction times in the management information recording area.

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