KR20060136390A - Recording medium, method of controlling file of the recording medium, and method and apparatus for reproducing the same - Google Patents

Abstract

A recording medium, a method of controlling a file of the recording medium, and a reproduction method and apparatus thereof, wherein the recording medium includes original data files, at least one normal file specifying at least one of the original data files, and playback is performed. At least one data area comprising at least one remote file, possibly specifying at least one local data file to be downloaded from an external source.

Recording media, optical discs, original data files, normal files, remote files, national data files, virtual file systems, playlists, play items,

Description

A recording medium, a method of controlling a file of the recording medium, a reproduction method and a device thereof, and a recording method and a device for reproducing the file.

The present invention relates to a recording medium, and more particularly, to a recording medium, a control method of a file of the recording medium, and a reproduction method and apparatus thereof. Although the present invention is applicable to various fields, in particular, it is suitable for generating a reproduction control file which makes it possible to use a combination of data recorded on a recording medium and data downloaded from the outside, and reproduces the generated reproduction control file. .

BACKGROUND OF THE INVENTION An optical disc is widely used as an optical recording medium capable of recording a large amount of data. Currently, new high-density optical recording media are being developed, such as Blu-ray Discs (hereinafter also referred to as "BDs") for recording and storing a large amount of high definition video and audio data among such optical discs. Today, Blu-ray Discs (BDs), known as next-generation recording media technologies, have been established as next-generation optical recording solutions that, along with many other digital devices, can store a significant amount of data beyond conventional DVDs.

In particular, in the above optical recording and / or reproducing apparatus, the basic functions for recording and / or reproducing the Blu-ray Disc (BD) as well as additional functions considering the combination use with related peripheral digital devices are currently considered. There is. Thus, in general, the optical recording and / or reproducing apparatus should be provided with a function of receiving an external input signal and displaying the received signal or applying the external input signal together with an internal Blu-ray disc (BD) reproduction signal for reproduction. .

However, since a preferred playback (or playback) method for combining the external input signal and the internal Blu-ray Disc (BD) playback signal to play back is not known and known yet, the Blu-ray Disc (BD) -based optical Several limitations exist in the wide development of recording and / or reproducing apparatus. In addition, these limitations cause problems in the field of reproducing the external input signal and the internal Blu-ray disc (BD) reproduction signal as a single reproduction unit.

Accordingly, the present invention relates to a recording medium capable of solving the problems caused by the limitations and disadvantages of the related art, a control method of a file of the recording medium, and a reproduction method and apparatus thereof.

It is an object of the present invention to provide a method and apparatus for reproducing data using a reproduction control file, for example, suitable for a recording medium such as a Blu-ray Disc (BD).

Another object of the present invention is to provide a method for creating a file on an optical disk or at an external source to enable reproduction of data recorded on an optical disk as well as data downloaded from an external source, and normalizing the generated file. It is to provide a systematic method of controlling as the generated information.

It is another object of the present invention to provide an effective method and apparatus for reproducing a recording medium using the generated file.

Partial advantages, objects, and features of the invention will be set forth in part in the description which follows, and in part will be obvious to those skilled in the art upon examination of the following techniques, or practice of the invention You can learn according to. Objects and other advantages of the invention will be realized and obtainable by the structure particularly illustrated in the following description and claims, as well as in the accompanying drawings.

According to the present invention for achieving the above object and other advantages, in the recording medium, at least one normal fie specifying at least one of the original data files and the original data files; And at least one data area including at least one remote file specifying at least one additional data file to be downloaded from an external source for playback. The medium is implemented.

According to another aspect of the present invention, there is provided a method for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files. Reading an original file system comprising a file and a plurality of remote files specifying a plurality of remote data files downloadable from an external source; downloading at least one of the plurality of multinational data files from the external source; And generating download state information indicating whether each of the plurality of data files is in a state of being downloaded from an external source.

According to another aspect of the present invention, there is provided a method of creating a virtual file system for a recording medium, comprising: at least one normal file recorded on the recording medium and specifying at least one of original data files and the original data files Reading an original file system, including downloading at least one partial data file from an external source, and storing the virtual file system according to file information of the original file system and the at least one partial data file. A virtual file system creation method for a recording medium is implemented, comprising the step of generating.

According to another aspect of the present invention, there is provided a method of creating a virtual file system for a recording medium, comprising: at least one normal file recorded on the recording medium and specifying at least one of original data files and the original data files Reading an original file system, including downloading at least one partial data file from an external source, generating a download file system according to file information of the at least one partial data file, and And generating a virtual file system according to the download file system and the original file system.

According to another aspect of the present invention, there is provided a method for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files. Reading an original file system comprising a file and at least one remote file specifying at least one remote data file downloadable from an external source, and downloading the at least one data file from the external source; And a step of selecting one of said at least one remote file, and playing back a local data file designated by said selected prime power file.

According to another aspect of the present invention, there is provided a method for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files. Reading an original file system including the file, downloading at least one locational data file from an external source, and virtual file system in accordance with file information of the original file system and the at least one locational data file. And reproducing the original data files and the at least one partial data file separately or in combination using the virtual file system. Is implemented.

According to another aspect of the present invention, an apparatus for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files; Reading an original file system including the file, downloading at least one data file from an external source, generating a download file system according to file information of the at least one data file, and Generating a virtual file system according to the download file system and the original file system, and reproducing the original data files and the at least one data file separately or in combination using the virtual file system. To include steps A data reproducing method of a recording medium with a gong is implemented.

According to another aspect of the present invention, an apparatus for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files; A microcomputer that reads an original file system including a file and at least one remote file specifying at least one remote data file downloadable from an external source, and the at least one data file downloaded from the external source. A local data storage for storing the data, and a control unit for selecting one of the at least one remote file and generating control signals to enable playback of a data file designated by the selected remote file. Media data The production unit is implemented.

According to another aspect of the present invention, an apparatus for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files; A microcomputer that reads an original file system containing the file, a local data storage storing at least one local data file downloaded from an external source, and file information of the original file system and the at least one universal data file And a control unit for generating a virtual file system according to claim 1, wherein the original data files and the at least one national data file are reproduced individually or in combination using the virtual file system. Data playback The device is implemented.

According to another aspect of the present invention, an apparatus for reproducing data recorded on a recording medium, comprising: at least one normal recorded on the recording medium and specifying at least one of original data files and the original data files; A microcomputer that reads an original file system containing the file, a local data storage storing at least one data file downloaded from an external source, and a download file system in accordance with file information of the at least one data file. And a controller for generating a virtual file system according to the original file system and the download file system, and separately storing the original data files and the at least one data file using the virtual file system. or The data reproduction apparatus of the recording medium, characterized in that the possible play of the sum are implemented.

It is to be understood that the foregoing general description and the following detailed description of the invention are intended for the purpose of description of the invention, as claimed by way of illustration and illustration.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the invention, to illustrate the invention in detail, illustrate embodiments of the invention and, together with the description, explain the principles of the invention. In the drawings,

1 is a schematic diagram of the present invention;

2 is a diagram showing a file structure recorded on an optical disk which is a recording medium according to the present invention;

3 is a diagram showing a data recording structure recorded on an optical disk which is a recording medium according to the present invention;

4A and 4B show an example of an original file system that includes both a normal file and a remote file;

5A and 5B show a file control and playback method according to a first embodiment of the present invention;

6A to 6C show a file control and playback method according to a second embodiment of the present invention;

7A and 7B show an example of an original file system including only normal files,

8 is a diagram showing a file control and playback method according to a third embodiment of the present invention;

9 is a diagram showing a file control and playback method according to a fourth embodiment of the present invention;

10 is a diagram showing file reproduction examples according to the third and fourth embodiments of the present invention;

11 illustrates an optical recording and / or reproducing apparatus according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like or similar elements are denoted by like reference numerals in the drawings. In addition, terms used in the present invention have been selected from the terms generally known and used, but some of the terms mentioned in the present specification have been selected at the discretion of the applicant, and the specific meaning thereof is described in the relevant part of the present specification. Doing. In addition, the present invention should not be understood merely by the terms used, but by the meanings of the terms.

In the present description, " recording medium " refers to all types of media capable of recording data, and broadly includes all types of media such as optical disks, magnetic tapes, and the like, regardless of the recording method. In the following description, an optical disk, in particular a Blu-ray disk (BD), is used as a recording medium proposed in the present invention so as to simplify the description of the present invention. However, it should be understood that the spirit or scope of the invention may equally apply to other forms of recording media.

1 shows a schematic diagram of the present invention showing an example of a combination use between the optical recording and / or reproducing apparatus 10 and peripheral devices. The optical recording and / or reproducing apparatus 10 according to the present invention is an apparatus for recording and / or reproducing optical discs of various standards (or sizes), and an optical disc of a specific standard (for example, a Blu-ray Disc BD). ) Can be designed to record and / or reproduce. As another embodiment, the optical recording and / or reproducing apparatus 10 may be designed to have only a reproducing function without a recording function. However, in this specification, in consideration of the development of the Blu-ray Disc (BD) and the connectivity with the peripheral device, the BD player and the Blu-ray Disc (BD) for playing the Blu-ray Disc (BD)) are recorded and / or Alternatively, a BD recorder to be played back will be described as an example.

The optical recording and / or reproducing apparatus also receives an external input signal, processes the received signal separately from the disc recording and / or reproducing function, and transmits the processing signal to the user through another external display device 20. Has the ability to In this case, there is no limitation on the inputtable external signal, but the most typical forms of the external signal include a digital television (DTV) broadcasting program and the Internet. In particular, since the Internet is a medium that is easily accessible by the public at present, a user can download and use specific data provided on the Internet through the above-described optical recording and / or reproducing apparatus.

Further, in the present invention, the original data is recorded on the optical disc BD loaded in the optical recording and / or reproducing apparatus 10, and the local data downloadable from an external source is related to the original data or the When present independently of an external source, the original data and the local data may be reproduced in combination or independently (ie, by themselves). In particular, for example, a video stream and an audio stream (both Korean) for a film dubbed in Korean are recorded on the optical disc as original data, and an audio stream (English) for the original film in English is used as an international data. When present on the Internet, a user may, if desired, download audio data (English), the local data present on the Internet, to play along with the video stream in the original data, or to play the downloaded local data itself. There is a need to define a relationship between the original data and the locational data to meet the user's demands, and a systematic method for controlling and reproducing the data as desired by the user is required.

As described above, for the sake of simplicity, the signal recorded in the disk is referred to as original data, and the signal existing in the external source is referred to as local data. However, these terms may vary depending on how the data is obtained and are not limited to any particular type of data. Accordingly, the local data generally includes audio data, presentation graphic data, subtitle data, interactive graphic data, and the like. In addition, without limitation to the above-described examples, a combination of original data in an audio stream (English) and local data in a video stream is possible.

In order to meet the needs of the user, a file structure for reproducing both the original data and the positional data is required, which will be described in detail with reference to FIGS. 2 and 3. Referring to FIG. 2, which shows a file structure for controlling information recorded in a disc, the root directory root includes one or more BD directories BDMV. Each BD directory includes an index file 'index.bdmv' and an object file 'MovieObject.bdmv' representing a general file used when interacting with one or more users. In one example, an index file contains data representing an index table that contains various information about a plurality of selectable menus and titles.

Each BD directory includes three file directories containing data to be reproduced and information necessary for reproduction of the data. The file directory contained in each BD directory is a stream directory STREAM, a playlist directory PLAYLIST, and a clip information directory CLIPINF. The stream directory contains audio / video (A / V) stream (hereinafter referred to as "A / V stream") files. In particular, the AV streams '01000.m2ts' and '02000.m2ts' generally have the form of a transport packet of MPEG2 type and have a file extension of "* .m2ts". In addition, the clip information directory CLIPINF includes clip information or clip information files '01000.clpi' and '02000.clpi' that correspond one-to-one with AV stream files (clip files) included in the stream directory, respectively. The clip information file (* .clpi) includes attribute information and timing information of a corresponding stream file (clip file), where the timing information is represented using a presentation time stamp (entry point map). Includes mapping information for mapping a Presentation Time Stamp (PTS) with a Source Packet Number (SPN).

AV streams (* m2ts) and clip information files (* .clpi) paired one-to-one with each other are designated as clips. For example, '01000.clpi' included in the clip information directory CLIPINF includes attribute and timing information of '01000.m2ts' included in the stream directory STREAM, and '01000.clpi' and '01000.m2ts'. 'Constitutes a clip. Hereinafter, a clip corresponding to the original data recorded in the disc is referred to as an "original clip", and a clip corresponding to local data downloadable from an external source (ie, external to the disc) is referred to as an "additional clip".

Referring back to FIG. 2, the playlist directory PLAYLIST includes one or more playlist files (* .mpls), each playlist file (* .mpls) playing the playing time of a particular original clip. At least one PlayItem (PlayItem) that specifies the interval). In particular, the PlayItem contains information that specifies the playback start time (In-Time) and playback end time (Out-Time) of a specific original clip that can be specified by 'Clip_Information_File_name' in the PlayItem. Include. Accordingly, one playlist file (* .mpls) represents a playback unit for playing back a required clip using a combination of one or more PlayItems (PlayItem).

In the present invention, the above-described files (* .mpls, * .clpi, * .m2ts) may be classified into two types according to reproduction of original data and international data. In particular, a file that specifies only original data recorded on the optical disc and is normally accessible is referred to as a "normal file", whereas a file that is inaccessible because it has a designated file not recorded on the optical disc is referred to as a "remote file". It is referred to. This remote file is available only when you have downloaded some data from an external source. In addition, the local data to be downloaded is controlled by a separate download file, which will be described in detail with reference to FIGS. 4A and 4B.

In addition, the above-described file structure is controlled by the file system in the optical disk. In particular, the file system includes information for overall file control, such as the attributes of each file recorded in the optical disc, the location of the files, and the correlation between the files. Modern optical discs generally use a universal disc format (UDF) as the file system. However, the file system is not limited to such a structure, and in particular, the Blu-ray Disc uses a unique blu-ray disc file system (BDFS). Therefore, the file system recorded on the optical disc is referred to as "original file system". In addition, a new file system that is used only for local data created and downloaded from an external source is referred to as a "download file system." Also, another new file system created from an external source and controlling both the download file system and the original file system is referred to as a "virtual file system."

3 is a schematic diagram showing the above-described file structure and the structure of information related to the file system. A disc (disc volume) is a file system information area occupying the innermost part of the disc starting from its inner circumference (or center), an AV system area occupying the outermost part of the disc, and between the file system information area and the stream data area. Contains the database area occupied by. In the file system information area, system information for controlling all data files is recorded. In addition, original data such as audio / video / graphic data is recorded in the AV stream area.

In particular, as described above, the data recorded in the AV stream area in the disc is referred to as "original clip", and the file system recorded in the file system information area is referred to as "original file system". By using the information in the database area, it is possible to select an AV stream to be reproduced and to determine and use an appropriate reproduction method of the selected AV stream. Moreover, the file structure recorded on the optical disc is included in the file system information area. This can be verified by the original file system.

Hereinafter, referring to preferred embodiments of the present invention, a file structure for reproducing both original data and local data, a method for generating a file system for controlling the file structure in an optical disk, and a method for controlling the generated file are described. It will be described in detail. The proposed embodiments can be broadly classified into two types. In particular, referring to FIG. 4A, both normal and remote files may be included in the original file system. 7A, only normal files may be included in the original file system.

4A and 4B show an example of an original file system that includes both a normal file and a remote file. In particular, FIG. 4A shows a file system controlled by the original file system. In this case, the original file system includes both a normal file having the actual data recorded on the optical disk and a remote file which does not actually have the data recorded on the optical disk. The remote file also controls local data downloadable from an external source. As an example, referring to FIG. 4A, a playlist file '33333.mpls' and a plurality of clips '02000.clpi', '03000.clpi', '02000.m2ts', and '03000.m2ts' are remote files. Corresponds to. The remaining files correspond to the normal file where data is normally present. Thus, remote files are only accessible as complete files after the download of corresponding local files.

In the first embodiment of the present invention, since the remote file and the normal file are configured separately on the file system structure, supplementary control information is required. In particular, it is necessary to distinguish and identify each of the remote file and the normal file, and to specify the remote file to download the optional data. In addition, confirmation information for confirming the completion of the download of the local data should also be downloaded. Such control information can be provided while recording control information corresponding to the optical disc. However, when using a read-only optical disk (BD-ROM), information cannot be recorded on the optical disk (BD-ROM). In addition, third information, especially confirmation information indicating the completion of the download, must also be provided and controlled separately from an external source.

4B shows first and second control information identifying the remote file and the normal file and specifying the local data to download. The third control information will be described later in detail with reference to other preferred embodiments (FIGS. 5A and 6A). In particular, FIG. 4B shows an example of a file control table of the file system for controlling the file structure shown in FIG. 4A. This file control table contains categories of "file name", "file type", and "attribute". However, these categories correspond to some of the categories included in the file control table of the file system. The categories shown in FIG. 4B are used to distinguish and identify remote files and normal files according to the present invention.

That is, the attribute is used to distinguish and identify the remote file and the normal file, and this information is referred to as "disc_existence". If 'disc_existence = 1', the file is identified as a normal file. On the other hand, if 'disc_existence = 0', the file is identified as a remote file. In addition, second control information for specifying the local data to download is also required, which is referred to as a "download list".

The download list, which pre-specifies the local data to download, can be configured by using the same file name as the local data to download or by using uniform resource locator (URL) information of the local data existing on the Internet. Could be. When the download list is constructed using the file name, there is an advantage in that it is easy to download the local data having the same file name from any location. In contrast, in the case of constructing a download list using URL information, it is more advantageous in that local data can be downloaded only from a specific URL, thereby providing more reliable local data. In addition, the download list may be recorded in each remote file, or in the case of the download list used for all optical disks, may be included in a separate file. In other words, the download list for a particular remote file may be included in the corresponding remote file or in a separate download list file.

5A and 5B show a file control and playback method according to the first embodiment of the present invention. In particular, FIGS. 5A and 5B show a file control method when an optical disc including an original file system is loaded into the optical recording and / or reproducing apparatus 10 as shown in FIG. 4A. In addition, in the first embodiment of the present invention, only the remote data included in the original file system and the local data designated by the download list can be downloaded.

Thus, Fig. 5A shows an overall file control method, and Fig. 5B shows a method of playing an optical disc using the overall file control method. When the optical disc is loaded into the optical recording and / or reproducing apparatus 10, the file structure is checked from the file system information. After that, the remote files and the normal files are identified and identified, and in the case of the remote file, the download list is checked. Subsequently, one or more local data are downloaded according to the user's request or system command. 5A shows an example in which '33333.mpls', '03000.clpi', and '03000.m2ts' among remote files are completely downloaded, while '02000.clpi' and '02000.m2ts' have not been downloaded yet. Doing.

Accordingly, the optical recording and / or reproducing apparatus 10 controls the completion of the download (corresponding to the third control information described above) by using the confirmation information for confirming the completion of the download, which is referred to as a "download flag. ) ". Here, a download flag "1" indicating completion of download is assigned to the remote files' 33333.mpls', '03000.clpi', and '03000.m2ts' that have been downloaded, whereas the remote files' 02000.clpi that have not been downloaded are allocated. ',' 02000.m2ts' is assigned a download flag "0" to indicate incomplete download. Thus, the system of the optical recording and / or reproducing apparatus 10 can easily recognize the form of the currently downloaded local data.

5B illustrates a file reproduction method using downloaded local data. For example, the initial remote file playlist file '33333.mpls' is accessible only when a new '33333.mpls' file is downloaded from an external source. In addition, the original clip files '01000.clpi' and '01000.m2ts' recorded on the optical disc and the downloaded national clip files '03000.clpi' and '03000.m2ts' can be played using PlayItem. And the final reproduction is controlled by controlling. Therefore, in the first embodiment of the present invention, the optical recording and / or reproducing apparatus 10 includes an original file system included in a remote file recorded on an optical disk, and a memory (indicated by reference numeral 15 in FIG. 11). The downloaded data may be stored using the download list in the list, and thus, final file control may be performed using the download flag.

6A to 6C show a file control and playback method according to a second embodiment of the present invention. In particular, FIGS. 6A and 6B show a file control method when an optical disc including an original file system is loaded into the optical recording and / or reproducing apparatus 10 as shown in FIG. 4A. Further, in the second embodiment of the present invention, both the remote file included in the original file system and the local data specified by the download list, and also the non-specified local data can be downloaded, which is the first aspect of the present invention. The difference is between the embodiment and the second embodiment.

Thus, FIG. 6A illustrates an overall file control method, and FIG. 6B illustrates a virtual file system created using newly downloaded local data and control information. FIG. 6C also shows a method of reproducing an optical disc using the virtual file system. When the optical disc is loaded into the optical recording and / or reproducing apparatus 10, the file structure is checked from the file system information. After that, the remote files and the normal files are identified and identified, and in the case of the remote file, the download list is checked. Subsequently, one or more local data are downloaded according to the user's request or system command. FIG. 6A shows an example in which '33333.mpls', '03000.clpi', and '03000.m2ts' among remote files are completely downloaded, while '02000.clpi' and '02000.m2ts' have not been downloaded yet. Doing. In addition, new files '44444.mpls', '04000.clpi', and '04000.m2ts' are downloaded.

Therefore, the optical recording and / or reproducing apparatus 10 controls the download completion by using the confirmation information for confirming the completion of the download. Here, a download flag "1" indicating completion of download is assigned to the remote files' 33333.mpls', '03000.clpi', and '03000.m2ts' that have been downloaded, whereas the remote files' 02000.clpi that have not been downloaded are allocated. ',' 02000.m2ts' is assigned a download flag "0" to indicate incomplete download. In addition, although newly downloaded files are not included in the original file system, each of the newly downloaded files '44444.mpls', '04000.clpi', and '04000.m2ts' is also assigned a download flag "1". .

6B shows a newly created virtual file system. In order to be able to download and use files not designated by the original file system, in the second embodiment of the present invention, the original file system is read when the optical disc is loaded, and then the virtual file system is loaded when certain local data is downloaded. It is created to control the corresponding original file system and downloaded local file. For example, unlike the original file system, in the newly created virtual file system (shown in FIG. 6B), '33333.mpls', '03000.clpi', '03000.m2ts' are updated, and '44444.mpls' , '04000.clpi' and '04000.m2ts' are newly created, and '22222.mpls', '02000.clpi' and '02000.m2ts' are left as remote files.

6C illustrates a file reproduction method using a virtual file system according to the present invention. For example, the initial remote file playlist file '33333.mpls' is accessible only when a new '33333.mpls' file is downloaded from an external source. In addition, the original clip files '01000.clpi' and '01000.m2ts' recorded on the optical disc and the downloaded national clip files '03000.clpi' and '03000.m2ts' can be played using PlayItem. And the final reproduction is controlled by controlling. Although the playlist file '44444.mpls' is not included in the original original file system, the playlist file '44444.mpls' is newly downloaded and created from an external source. The newly created playlist file '44444.mpls' plays and controls the local clip files '04000.clpi' and '04000.m2ts' downloaded using the playitem.

Therefore, in the second embodiment of the present invention, the optical recording and / or reproducing apparatus 10 includes an original file system included in a remote file recorded on an optical disk, and a memory (indicated by reference numeral 15 in FIG. 11). The downloaded list is stored in the downloaded local data. Thereafter, the virtual file system and the download flag may be updated so that file control can be performed whenever new data is newly downloaded.

7A and 7B show the file system structure of the optical disc according to the present invention, which is an example of an original file system including only normal files. In particular, unlike the example shown in FIG. 4A, the original file system does not include a remote file and does not include a download list. Thus, the user can easily and freely download the desired local data regardless of the original file system. Fig. 7A shows the file structure controlled by the original file system. The original file structure shown is the same as the original file structure shown in FIG. 2 except that all of its files are normal files.

7B shows an example of the local data downloaded in response to a user request or system command. Referring to FIG. 7B, the downloaded files are 'MovieObject.bdmv', '33333.mpls',' 44444.mpls', '03000.clpi', '03000.m2ts',' 04000.clpi ',' 04000.m2ts 'The files are. Here, although 'MovieObject.bdmv' already exists in the initial original file system, it is newly downloaded information for updating. However, the remaining files are new files that are not included in the original original file system.

In particular, 'MovieObject.bdmv' included in the initial original file system is a normal file accessible by itself. However, you will be able to download a new 'MovieObject.bdmv' for updates whenever necessary. This principle can be equally applied to other normal files. In this way, 'MovieObject.bdmv' as a general file is composed of a group of commands for playing a playlist, and may be named as "JavaObject" according to the adopted embodiment.

8 shows a file control and playback method according to a third embodiment of the present invention. In particular, FIG. 8 shows a file control method when an optical disc including an original file system as shown in FIG. 7A is loaded into the optical recording and / or reproducing apparatus 10. 8 illustrates an example of controlling a file by generating a virtual file system by binding the downloaded local data and the original file system. Therefore, in the third embodiment of the present invention, the optical recording and / or reproducing apparatus 10 stores an original file system including only normal files recorded on an optical disk in a memory (denoted by reference numeral 15 in FIG. 11). Save it. Thereafter, each time the new data is downloaded, a virtual file system is created for file control and updated.

9 shows a control method of the high density optical disc according to the fourth embodiment of the present invention. In particular, Fig. 9 shows an example of generating a download file system having only downloaded local data and performing file control together with the above-described original file system recorded on the optical disk. Therefore, in the fourth embodiment of the present invention, the optical recording and / or reproducing apparatus 10 stores only a download file system composed of downloaded local data. Thereafter, the download file system is updated each time the local data is downloaded. In addition, file control of the download file system may be performed in combination with the original file system recorded on the optical disc whenever necessary. Thus, in the case of the fourth embodiment, the download file system and the original file system can be bound together, and the above-described virtual file system can be used to control the bound file system as a single file system.

FIG. 10 illustrates a file reproduction method using one of a virtual file system (shown in FIG. 8) and a download file system (shown in FIG. 9) stored in a memory, according to the third and fourth embodiments of the present invention. For example, playlist files '33333.mpls' and '44444.mpls' are not included in the original original file system, but become accessible in a newly downloaded state from an external source.

In particular, the playlist file '33333.mpls' plays the original clip files '01000.clpi' and '01000.m2ts' recorded on the optical disc, and the downloaded national clip files '03000.clpi' and '03000.m2ts'. Play and control using items. In addition, the playlist file '444444.mpls' plays and controls downloaded clip files '04000.clpi' and '04000.m2ts' using playitems. In addition, the newly downloaded 'MovieObject.bmdv' file allows '33333.mpls' to be played under the conditions of tapping so that the downloaded playlist files '33333.mpls' and '444444.mpls' can be played and controlled. Contains commands to play '444444.mpls' under other specific conditions.

11 is a detailed view of an optical recording and / or reproducing apparatus 10 according to the present invention for reproducing and controlling files in a high density optical disc. The optical recording and / or reproducing apparatus 10 basically comprises a pickup section 11 for reproducing control information including original data and an original file system recorded on an optical disc, and operation of the pickup section 11. The servo 14 for controlling and the recovery signal received from the pickup section 11 restore the desired signal value or modulate the signal to be recorded into a signal that can be recorded on the optical disc, and then modulate the modulated signal into the pickup section 11. The signal processor 13 transmits the signal to the digital signal processor 13 and the microcomputer 16 controls the operations.

In addition, the AV decoder 17 performs final decoding of the output data (that is, the original data and / or the local data) under the control of the controller 12. In addition, in order to perform a function of recording a signal on an optical disc, the AV encoder 18 converts an input signal into a signal of a specific format (for example, an MPEG2 transport stream) under the control of the control unit 12. The converted signal is supplied to the signal processor 13.

The control unit 12 controls all operations of the optical recording and / or reproducing apparatus 10 according to the present invention. In particular, in the case of the first embodiment of the present invention (shown in Fig. 5A), the control unit reads the remote file from the original file system recorded on the optical disk. Thereafter, the control unit 12 downloads the local data associated with the read remote file from an external source and stores the downloaded local data in a memory. Finally, the control unit 12 may control the required file by controlling the data to be reproduced decoded from the AV decoder and control the reproduction.

Alternatively, in the case of the second embodiment (shown in FIG. 6A) and the third embodiment (shown in FIG. 8) of the present invention, the control unit 12 controls a file for controlling the local data and the local data from an external source. Download the information. Thereafter, the control unit 12 binds the downloaded file information with the original file system recorded on the optical disk to generate a virtual file system. Finally, the controller 12 may control the required file by using the file information included in the newly created virtual file system and control the reproduction so as to control the data to be reproduced decoded from the AV decoder.

In addition, in the fourth embodiment (shown in Fig. 9), the control unit 12 downloads the local data and file information for controlling the local data from an external source. Thereafter, the control unit 12 generates a download file system using the downloaded file information, and stores the generated download file system in the memory. Finally, to control the data to be reproduced decoded from the AV decoder, the control unit 12 controls the required file using the file information included in either the stored download file system or the original file system recorded on the optical disk. And control playback.

As apparent from the above, the virtual file system is created separately according to the binding of the download file system and the original file system. Therefore, the memory 15 storing the virtual data system and the download file system as well as the local data may continuously use the stored data in a subsequent process, or the memory 15 may dynamically store the data temporarily. It can also be used as dynamic memory.

As described above, the recording medium, a method of controlling a file of the recording medium, and a reproduction method and apparatus thereof have the following advantages. That is, the original data recorded on the optical disk and the local data downloaded from an external source can be used in combination, so that the efficiency of the product can be increased and the user can easily use the product.

The present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art to which the present invention pertains as can be seen in the appended claims, and such modifications are within the scope of the present invention. Belong.

Claims (23)

In the recording medium, At least one normal file specifying original data files, at least one normal file specifying at least one of the original data files, and at least one remote file specifying at least one data file to be downloaded from an external source for playback; A recording medium comprising at least one data area comprising. The method of claim 1, And further comprising a file system area for storing original file system information including identification information indicating whether each of the at least one normal file and the at least one remote file is a normal file or a remote file. media. 3. The recording medium of claim 2, wherein the file system information area stores a download list that identifies the at least one data file to be downloaded from the external source. A method for reproducing data recorded on a recording medium, A plurality of remote files recorded on the recording medium, the at least one normal file specifying at least one of the original data files and the original data files, and the plurality of remote files specifying a plurality of optional data files downloadable from an external source; Reading the original file system including; Downloading at least one of the plurality of national data files from the external source; Generating download status information indicating whether each of the plurality of national data files is in a downloaded state from an external source. The method of claim 4, wherein And reading original file system information from the recording medium, the original file system information including identification information indicating whether each of the at least one normal file and the plurality of remote files is a normal file or a remote file. Data reproduction method of a recording medium. The method of claim 4, wherein And reading the download list recorded on the recording medium to identify the plurality of data files to be downloaded from an external source. The method of claim 6, Downloading at least one new data file not identified by said download list from said external source. The method of claim 7, wherein And generating a virtual file system including the at least one new data file downloaded from the external source according to file information of the original file system and the at least one new data file. Data playback method. The method of claim 8, And storing the virtual file system in a local data storage. The method of claim 8, Updating the virtual file system when at least one of the undownloaded local data files is downloaded from the external source. In the method for creating a virtual file system for a recording medium, Reading an original file system recorded on the recording medium and including at least one normal file specifying at least one of the original data files and the original data files; Downloading at least one national data file from an external source, And generating a virtual file system according to the file information of the original file system and the at least one locational data file. The method of claim 11, And the file information is also downloaded from the external source. The method of claim 11, And the file information is initially stored in a local data storage prior to the download of the at least one national data file. In the method for creating a virtual file system for a recording medium, Reading an original file system recorded on the recording medium and including at least one normal file specifying at least one of the original data files and the original data files; Downloading at least one national data file from an external source, Generating a download file system according to file information of the at least one data file; And generating a virtual file system according to the download file system and the original file system. The method of claim 14, And the file information is also downloaded from the external source. The method of claim 14, And the file information is initially stored in a local data storage prior to downloading the at least one national data file from the external source. A method for reproducing data recorded on a recording medium, At least one normal file recorded on the recording medium, the at least one normal file specifying at least one of the original data files and the original data files, and at least one remote data at least one remote data downloadable from an external source; Reading the original file system containing the file, Downloading the at least one national data file from the external source; Selecting one of the at least one remote file; And reproducing a local data file designated by the selected power file. The method of claim 17, Generating download status information indicating whether each of the at least one partial data file is in a downloaded state from an external source. A method for reproducing data recorded on a recording medium, Reading an original file system recorded on the recording medium and including at least one normal file specifying at least one of the original data files and the original data files; Downloading at least one national data file from an external source, Creating a virtual file system according to the file information of the original file system and the at least one national data file; And reproducing the original data files and the at least one national data file individually or in combination using the virtual file system. An apparatus for reproducing data recorded on a recording medium, Reading an original file system recorded on the recording medium and including at least one normal file specifying at least one of the original data files and the original data files; Downloading at least one national data file from an external source, Generating a download file system according to file information of the at least one data file; Creating a virtual file system according to the download file system and the original file system; And reproducing the original data files and the at least one locational data file individually or in combination using the virtual file system. An apparatus for reproducing data recorded on a recording medium, At least one normal file recorded on the recording medium, the at least one normal file specifying at least one of the original data files and the original data files, and at least one remote data at least one remote data downloadable from an external source; A microcomputer that reads the original file system containing the file, Local data storage for storing the at least one national data file downloaded from the external source; And a control unit for selecting one of the at least one remote file and generating control signals to enable playback of a local data file designated by the selected remote file. An apparatus for reproducing data recorded on a recording medium, A microcomputer recorded on the recording medium and reading an original file system including at least one normal file specifying at least one of original data files and the original data files; Local data storage for storing at least one local data file downloaded from an external source, And a controller for generating a virtual file system according to the file information of the original file system and the at least one data file, and using the virtual file system with the original data files and the at least one data file. And reproducible individually or in combination. An apparatus for reproducing data recorded on a recording medium, A microcomputer recorded on the recording medium and reading an original file system including at least one normal file specifying at least one of original data files and the original data files; Local data storage for storing at least one local data file downloaded from an external source, And a control unit for generating a download file system according to the file information of the at least one national data file, and generating a virtual file system according to the original file system and the download file system. A data reproducing apparatus of a recording medium, wherein one local data file is reproduced individually or in combination using the virtual file system.

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