KR100737696B1 - Method for managing and reproducing a synchronization between audio data and additional data - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing and reproducing synchronous recording between audio data and supplementary data. By additionally recording additional data such as the data into a plurality of data units, and additionally recording management information for synchronously reproducing the divided and recorded additional data with audio data, for example, a reproduction time length or a reproduction start time, It is a very useful invention that the user can check the lyrics or various additional information on the audio song data so that the user can check the output of the audio song data in synchronism with the continuously reproduced audio song data.

Additional data, real time recording audio management information, split recording, sync, lyrics

Description

Method for managing and reproducing a synchronization between audio data and additional data}

1 shows a configuration of a general optical disk device,

FIG. 2 shows real-time recording audio management (RTR_AMG) information recorded on a rewritable recording medium.

3 illustrates real time recording audio management (RTR_AMG) information according to the present invention;

4 illustrates cell information CI according to the present invention;

5 illustrates a process of reproducing the lyrics data unit SG_L_TXT according to the present invention.

6 illustrates real-time recorded audio management (RTR_AMG) information according to another embodiment of the present invention.

FIG. 7 illustrates a connection relationship between an audio lyrics file information table ALFIT and an audio lyrics file ALF according to another embodiment of the present invention.

※ Explanation of code for main part of drawing

1: Rewritable DVD 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 provides audio data for recording and reproducing additional data such as lyrics data data and user input data recorded together with audio song data on a rewritable recording medium in synchronization with the audio song data. And a method for managing and recording synchronous recording between and additional data.

In general, a recording medium such as a CD (Compact Disk) capable of recording and storing high quality digital audio data is the most widely used digital audio recording medium, and the CD is a device for permanently storing high quality digital audio data. You can save the record.

On the other hand, in recent years, a high-density optical disc (DVD: Digital Versatile Disc) that can record and store high-quality video data or high-quality audio data for a long time has been developed and released, and it is expected to be widely used and commercialized. , Playback-only DVD-ROM, write-once DVD-R, and rewritable DVD-RAM or DVD-RW (DVD-Rewritable), recording formats for recording audio data on DVD-RAM or DVD-RW Standardization work is in progress.

Fig. 1 shows a main configuration of a general optical disc apparatus for recording or reproducing video or audio data on a rewritable recording medium, which is recorded on a rewritable DVD, for example, a DVD-RW 10. An optical pickup 11 for reading out the received signal or for recording the data stream subjected to the recording signal on a rewritable recording medium; A reproduction signal processing unit (12) for processing a reproduction signal of the signal read out from the optical pickup (11); A decoder (13) for decoding and outputting the reproduction signal; A sampler 18 for sampling and converting an analog signal input from the outside into a digital signal, for example, LPCM data; An encoder (17) for encoding the converted and output digital signal by using an amplifier (MPEG) method or an AC-3 method; A recording signal processor (16) for converting the encoded digital data or the LPCM data into a signal of a form suitable for recording; A system controller 14 for controlling the operation of the constituent means in response to a user request; And a memory 15 for storing data necessary for the operation of the system controller.

On the other hand, when an analog audio signal is input to the optical disk device configured as described above, the sampler 18 samples the audio signal at a predetermined frequency, converts the audio signal into digital data, and applies it to the encoder 17. In the encoder 17, the digital data is encoded in a preset format, for example, an amp pack format, and provided to the recording signal processor 16.

Accordingly, the recording signal processing unit 16 converts the encoded compressed audio data into a signal suitable for recording, and records the encoded audio data in the DVD-RW 10, and is already encoded in the amp pack format and then inputted. The compressed audio data is converted into a signal suitable for recording and recorded on the DVD-RW 10. As described above, navigation data for audio data recorded and stored on the DVD-RW 10 is generated and recorded.

FIG. 2 shows real time record audio management (RTR_AMG) information recorded on a rewritable recording medium as navigation data. The real time record audio management (RTR_AMG) information is stored in the DVD-RW (Refer to FIG. 10) Real-time audio management general information (RTR_AMGI), audio file information table (AUDFIT), audio still video file information table (ASVFIT), original program chain information (ORG_PGCI), user-defined as navigation data for audio data recorded in 10). Management information for the program chain information table UD_PGCIT, the text data management TXTDT_MG, and the manufacturing information table MNFIT is recorded.

Meanwhile, the text data management (TXTDT_MG) information may include additional data such as lyrics data for a plurality of audio song data recorded in the DVD-RW 10 and included, for example. The system control unit 14 reads and reproduces any one of the plurality of audio song data stored in the DVD-RW 10, and outputs lyrics data corresponding to the audio song data. After searching and reading on the data management information, the image is reproduced and displayed on the video screen.

Therefore, the user can select and listen to any audio song data he / she wants from among a plurality of audio song data stored in the DVD-RW 10, and can also listen to the lyrics data for the audio song data. You will be able to see text on the screen.

However, additional data such as lyrics data recorded in the text data management (TXTDT_MG) information and the like correspond to the entire audio song data, respectively, and thus are not synchronized in detail. Therefore, a problem arises in that additional data such as lyrics cannot be displayed in accordance with the speed of the reproduced audio tune.

The present invention was created to solve the above problems, and additional data such as Lyric data or user input data corresponding to a plurality of audio song data recorded on a rewritable recording medium are stored. It is an object of the present invention to provide a method of managing and recording a synchronization recording between audio data and supplementary data so that a user can output in synchronization with audio tune data reproduced in real time in detail.

A synchronous recording management method between audio data and additional data according to the present invention comprises the steps of: dividing additional data for audio song data recorded on a rewritable recording medium into a plurality of additional data units; And two steps of recording information for synchronous reproduction with audio song data corresponding to the divided additional data unit, for example, a reproduction time length or a reproduction start time adjacent to the additional data unit. ,

A synchronous reproduction method between audio data and additional data according to the present invention comprises the steps of: searching for an additional data unit in which additional data for audio song data recorded on a rewritable recording medium is divided into a plurality of pieces; And reproducing and outputting said additional data unit according to information for synchronous reproduction with audio song data recorded adjacent to said additional data unit, for example, a reproduction time length or a reproduction start time. do.

Best Mode for Carrying Out the Invention Preferred embodiments of a synchronous recording management and reproduction method between audio data and additional data according to the present invention will be described in detail with reference to the accompanying drawings.

First, in the synchronous recording management method between audio data and additional data according to the present invention, Lyric data or user input data corresponding to audio song data recorded on a rewritable recording medium such as a DVD-RW or the like. The secondary data is divided into a plurality of additional data units, and the recording is performed in association with each part of the audio song data, and the additional data unit is synchronized with the audio song data continuously reproduced by the user in real time. Additional information is recorded to make the recognition possible.

FIG. 3 illustrates real-time recording audio management (RTR_AMG) information according to an embodiment of the present invention. In the real-time recording audio management information, as described above with reference to FIG. 2, real-time audio management general information (RTR_AMGI) is illustrated. , Audio file information table (AUDFIT), audio still video file information table (ASVFIT), original program chain information (ORG_PGCI), user-defined program chain information table (UD_PGCIT), text data management (TXTDT_MG) and manufacturing information table (MNFIT) Management information about the recording is included, but the text data management (TXTDT_MG) information includes position information (ALUI Search Pointer #k) of lyrics data for each song and an item (ALUI #k) where actual lyrics are stored. Each lyrics item is divided into a plurality of additional data units, for example, divided lyrics data units SG_L_TXT # 1 to #n, and the divided lyrics data unit. It includes time information (Time).

On the other hand, the time information (Time), the time information indicating the time duration (Time Duration) that each lyrics data unit (SG_L_TXT) is to be reproduced and output, or the playback start time (Start Time) to be reproduced and outputted the lyrics data unit The time information may be additionally recorded as indicating time information, and the time information may be displayed on a display screen in which the corresponding house data unit adjacently recorded is displayed together with other house data data units, and is distinguished from other house data data units. ) May be additionally recorded as time information for distinguishing and displaying a predetermined character font for a predetermined time.

In addition, as shown in FIG. 3, an identification code (IDCD: ID Code) may be additionally recorded in the lyrics data unit dividedly recorded as described above, and the identification code may include time information in the lyrics data unit. It can be additionally recorded as an identification code to indicate that an additional recording has been made, or additionally recorded as an identification code to indicate whether the type of data recorded in the lyrics data unit is lyrics data or user input data. It can be additionally recorded as an identification code for indicating the type of time information additionally recorded in the lyrics data unit.

As described above, the plurality of lyrics data units additionally recorded with the time information and the identification code, that is, the plurality of lyrics data units corresponding to one audio song, have the text data management information (as shown in FIG. 3). Indicated by a search pointer (Search Pointer) included in the TXTDT_MG, for example, the audio lyrics unit information search pointer (ALUI Search Pointer) is the first lyrics of a plurality of lyrics data units corresponding to one audio song. The start position of data unit is indicated.

On the other hand, in the cell information CI recorded in the original program chain information ORG_PGCI, as shown in FIG. 4, an audio object (AOB) corresponding to the corresponding cell (usually a recorded song and Audio still information unit for searching and reading audio aggregate information search pointer number (AOBI_SRPN) and audio still video unit (ASVU), which is still image data associated with the audio aggregate. The information search pointer number ASVUI_SRPN and the audio lyrics unit information search pointer number ALUI_SPRN indicating the audio lyrics unit information search pointer recorded in the text data management information TXTDT_MG are recorded.

That is, the audio lyrics unit information search pointer number ALUI_SRPN is recorded and recorded in the cell information CI of the original program chain information ORG_PGCI recorded in the real time recording audio management (RTR_MG) information, and the text data management (TXTDT_MG). ), An audio lyrics unit information search pointer corresponding to the audio lyrics unit information search pointer number is recorded, and the lyrics data indicated by the audio lyrics unit information search pointer is divided into a plurality of lyrics data units. It is recorded in the text data management information.

The time information Time and the identification code IDCD described above with reference to FIG. 3 are additionally recorded in the plurality of dividedly recorded lyrics data units.

Therefore, in the system control unit 14 of the optical disk device, when a specific song, that is, an AOB is selected, the audio lyrics unit information search pointer number ALUI_SPRN recorded in the cell information associated with the AOB is searched for and confirmed. The audio lyrics unit information search pointer (ALUI_Search Pointer) corresponding to the unit information search pointer number is retrieved from the text data management (TXTDT_MG) information, and the first lyrics data unit indicated by the audio lyrics unit information search pointer (SG_L_TXT # 1). The starting recording position of) is searched.

And. A series of operations for sequentially reading out and reproducing the lyrics data recorded in the first lyrics data unit (SG_L_TXT # 1) is performed. In this case, the system control unit 14 performs. When the identification code additionally recorded in the lyrics data unit is additionally recorded as an identification code for indicating the type of the time information, for example, by the identification code (IDCD) additionally recorded in the lyrics data unit SG_L_TXT. When the time information Time is determined to be time information indicating a time duration for reproducing and outputting the lyrics data unit SG_L_TXT, as shown in FIG. 5, the audio lyrics data divided into the lyrics data units are illustrated. By sequentially outputting to the screen only for the time specified in the time information field, it is controlled to be partially synchronized with the audio song data continuously reproduced in real time.

In addition, when it is determined by the identification code IDCD that the time information is time information indicating a start time at which the lyrics data unit is to be reproduced and outputted, the elapsed time after the initiation of the corresponding reproducing, When the playback start time of the lyrics data unit is reached, the audio lyrics data separately recorded in the lyrics data unit is reproduced and outputted at that time, thereby controlling to be partially synchronized with the audio song data continuously reproduced in real time.

Therefore, in the system control unit 14, when the identification code is additionally recorded as an identification code indicating the type of time information additionally recorded in the lyrics data unit, the lyrics data reproducing operation corresponding to the type of time information is performed. When the identification code is additionally recorded as an identification code indicating the type of data additionally recorded in the lyrics data unit, the reproduction operation corresponding to the type of the additional data is performed.

When the identification code is additionally recorded as an identification code indicating whether or not the time information is recorded, for example, an identification code indicating that the time information is not additionally recorded, the lyrics separately recorded in the lyrics data unit. A normal lyrics data reproducing operation of sequentially reading and reproducing data is performed.

Meanwhile, the lyrics data unit divided and recorded as described above may be recorded and stored in an additional data file separate from text data management (TXTDT_MG) information recorded in the real time recording audio management information. The detailed description is as follows.

First, FIG. 6 illustrates real-time recorded audio management (RTR_AMG) information according to another embodiment of the present invention. In the real-time recorded audio management information, additional data such as lyrics data or user input data is included in a plurality of additional data. A separate additional data file dividedly recorded in units, for example, an audio lyrics file information table ALFIT for managing a predefined audio lyrics file, may be additionally recorded.

On the other hand, as shown in Fig. 7, the audio lyrics file information table ALFIT includes audio lyrics file information table information ALFITI and audio lyrics file information ALFI, and the audio lyrics file information table is recorded. The information ALFITI includes the number ALFI_Ns information for the audio lyrics file information, the number AL_I_Ns information for the audio lyrics information, and the end address ALFIT_EA information for the audio lyrics file information table. Can be.

The audio lyrics file information ALFI includes general information about audio lyrics file information ALFI_GI and a plurality of audio lyrics unit information search pointers. The audio lyrics unit information search pointer includes corresponding audio. The start address (ALU_SA) and size (ALU_SZ) and lyrics property (L_ATR) information of the lyrics unit are recorded.

And. The start address (ALU_SA) information in the audio lyrics unit information search pointer is a start position of any one audio lyrics unit (ALU) recorded in an audio lyrics file that is separately recorded and managed, for example, an 'AR_Lyric.ARO' file. In the audio lyrics unit ALU, lyrics data corresponding to one piece of audio song data (Lyric Text) is recorded, and the lyrics data includes a plurality of lyrics data units SG_L_TXT # 1 to #k. Divided into.

In addition, as described above, an identification code and time information may be additionally recorded in the plurality of lyrics data units.

Therefore, the audio lyrics unit information search pointer number AULI_SRPN in the cell information CI indicates the audio lyrics unit information search pointer in the audio lyrics file information ALFI, and the audio lyrics unit information search pointer Indicates a recording start position of the audio lyrics unit recorded in the separate audio lyrics file. In the system controller 14, as described above, the audio lyrics unit information search pointer number recorded in the cell information is described. After searching (ALUI_SPRN), the audio lyrics unit information search pointer (ALUI_Search Pointer) corresponding to the audio lyrics unit information processing pointer number is retrieved from the audio lyrics file information ALFI, and the audio lyrics unit information search pointer Indicates the recording start position of the audio lyrics unit, It is retrieved from the file 'AR_Lyric.ARO'.

That is, the audio lyrics unit ALU recorded in the audio lyrics file 'AR_Lyric.ARO' is searched, and eventually the first lyrics data unit SG_L_TXT # 1 divided and recorded in the audio lyrics unit is searched. Based on the identification code and time information additionally recorded in the lyrics data unit, a series of lyrics data reproduction operations for reproducing the dividedly recorded lyrics data unit in synchronization with the audio song data continuously reproduced in real time or for distinguishing and displaying them Will be able to perform

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 synchronous recording management and playback method between the audio data and the additional data according to the present invention as described above, Lyric data or user input data corresponding to a plurality of audio song data recorded and stored on a rewritable recording medium. By additionally recording additional data such as Data) into a plurality of additional data units, and additionally recording management information for controlling reproduction of the divided recorded additional data, the user distinguishes and recognizes in synchronization with audio song data that is reproduced in real time continuously. It is a very useful invention that the user can check the lyrics or additional information on the audio song data more conveniently, so that it can be reproduced or outputted or displayed separately.

Claims (28)

Receiving main data and related auxiliary data and synchronously reproducing the received auxiliary data and main data using predetermined time information; The auxiliary data is composed of a plurality of sub units, The time information is present according to identification information indicating the presence of time information, the time information indicating a presentation time of auxiliary data associated with the main data, The main data and the auxiliary data are reproduced by management information, The management information includes information for connecting the main data and the auxiliary data. The method of claim 1, wherein the time information is information associated with the auxiliary data. The method of claim 1, wherein the main data and the auxiliary data is provided separately, Reading the main data and the auxiliary data, respectively, during the synchronous reproduction; And controlling the synchronization of the auxiliary data by using the time information on the basis of the main data. The method of claim 3, wherein the identification information is provided separately from the main data and the auxiliary data. The data reproduction method according to claim 1, wherein the sub unit includes corresponding time information, and during the synchronous reproduction, each sub unit is reproduced using the corresponding time information. The method of claim 1, wherein each sub unit includes first type information indicating a type of the auxiliary data, and includes reproducing each sub unit according to the first type information during the synchronous reproduction. How to play data. The method of claim 1, wherein the sub unit includes second type information for indicating the type of the time information, and includes reproducing each sub unit according to the second type information during the synchronous reproduction. A data reproduction method characterized by the above-mentioned. 8. The method of claim 7, wherein the second type of information indicates the start time or length of time of the corresponding subunit. Providing auxiliary data related to the main data and reproducing the auxiliary data in synchronization with the main data using predetermined time information; The time information is specified by identification information indicating the presence of time information, The time information is present only when the identification information indicates that the time information exists, Information for connecting the main data and the auxiliary data is provided separately from the main data and the auxiliary data. 10. The method of claim 9, wherein the time information is information related to the auxiliary data. The method of claim 10, wherein the identification information is provided separately from the main data and auxiliary data, The reproducing step includes analyzing the identification information; And determining whether time information exists according to the analysis result. Recovering auxiliary data associated with the main data; Reproducing the restored auxiliary data in a manner synchronized with the main data using predetermined time information, The auxiliary data is reproduced according to specific management information, The management information includes the time information, information indicating a format of the auxiliary data, and information for connecting the main data and the auxiliary data, And the management information is provided separately from the main data and the auxiliary data. The method of claim 12, wherein the time information is information associated with the auxiliary data. The method of claim 12, wherein the management information further includes identification information indicating whether the time information exists. The reproducing step may include determining whether the time information exists based on the identification information; And analyzing the time information when the time information exists, and reproducing the auxiliary data in a form synchronized with the main data according to the analyzed time information. Way. The method of claim 12, wherein the format information indicates whether the auxiliary data is lyrics data or user-defined data. The method of claim 12, wherein the management information further includes first type information for indicating a type of the auxiliary data. And the reproducing step includes reproducing the auxiliary data according to the first type information. The method of claim 12, wherein the management information includes second type information for indicating a type of the time information. And the reproducing step includes reproducing the auxiliary data according to the second type information. 18. The method of claim 17, wherein the second type of information indicates a start time or a length of time of the auxiliary data. The data reproduction method according to claim 12, wherein the management information further includes a start address, size information and attribute information of the auxiliary data. Providing auxiliary data related to the main data, and providing management information related to the auxiliary data, The auxiliary data is composed of a plurality of sub units, The management information includes identification information for indicating the existence of time information, time information existing according to the identification information, and information for connecting the main data and auxiliary data, The auxiliary data is provided separately from the main data. 21. The method of claim 20, wherein the time information is presentation information related to the ancillary data. 22. The method of claim 21, wherein the time information indicates a presentation start time or a presentation length of the auxiliary data. 21. The method of claim 20, wherein the sub unit includes corresponding time information. 21. The method of claim 20, wherein the management information is provided separately from the main data and the auxiliary data. The method of claim 1, wherein the information for connecting the main data and the auxiliary data includes location information indicating a location of the auxiliary data. And reproducing the auxiliary data according to the positional information. The method of claim 9, wherein the information for connecting the main data and the auxiliary data includes location information indicating a location of the auxiliary data. And reproducing the auxiliary data according to the positional information. The method of claim 12, wherein the information for connecting the main data and the auxiliary data includes location information indicating a location of the auxiliary data. And reproducing the auxiliary data according to the positional information. The method of claim 20, wherein the information for connecting the main data and the auxiliary data includes location information indicating a location of the auxiliary data.

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