KR101481523B1 - Apparatus and Method for reproducing recording medium, and recording medium - Google Patents

Abstract

A recording medium playback apparatus and a method thereof are disclosed. The external device interface reads AV data and reproduction management information recorded on the recording medium. The processing unit detects the auxiliary data from the external resource based on the reproduction management information and processes the detected auxiliary data in accordance with the reproduction state of the AV data recorded on the recording medium. According to the recording medium playback apparatus and method of the present invention, it is possible to play AV data existing outside the recording medium in the course of playing back the AV data recorded on the recording medium, so that the viewer can enjoy the trailer image of the latest movie, And the latest image such as the latest movie poster can be viewed in real time. The producer or the movie producer who has made the recording medium can view the advertisement image or image such as the product advertisement image, the movie advertisement image and the latest HD-DVD title in real time HD-DVD and Blu-ray titles can be lowered, thereby enabling viewers to purchase DVDs, HD-DVDs, and Blu-ray titles at affordable prices. Can be purchased.

Recording medium, AV data, playback, DVD, HD-DVD, advertisement

Description

[0001] The present invention relates to a recording medium reproducing apparatus, a recording medium reproducing method, and a recording medium,

More particularly, the present invention relates to a recording medium playback apparatus that reads playback management information recorded on a recording medium and reproduces AV data recorded on the recording medium based on playback management information, and a recording medium playback apparatus and method thereof .

An optical disk capable of recording a large amount of data as a recording medium is widely used. In recent years, a new high-density recording medium such as a high-density digital versatile disc (HD-DVD) and a high-definition digital versatile disc (BD) capable of recording and storing high-quality video data and high- : Blu-ray Disc) are being developed.

In particular, HD-DVD is a high-definition DVD based on Toshiba's and NEC's Advanced Optical Disc (AOD) technology as the next generation DVD standard. Single layer HD-DVDs can store 15GB of data, dual layer HD-DVDs can store 30GB, and HD-DVDs have 4 to 7 times the storage capacity of existing DVDs. In addition, because HD-DVD can store large capacity using 405nm wavelength blue laser, existing 480p DVD can not support resolution of high definition television (HDTV) with resolution of 1,080i / p, Resolution can be provided.

The high-density recording medium, which is a next generation recording medium technology, is a next-generation optical recording solution capable of providing data that significantly surpasses conventional DVDs, and has recently been developed along with other digital devices. In addition, development of an optical recording and reproducing apparatus using a high-density recording medium standard has been started.

With the development of the high-density recording medium and the optical recording and reproducing apparatus, it is possible to record titles having various attribute data as contents, for example, Advanced Content based on XML, and Titles enabling high interactivity based on Java platform And reproduction are also becoming possible.

However, it is a fact that it is difficult to develop a completed optical recording / reproducing apparatus because the specification of a high density recording medium is not fully completed yet.

Particularly, the optical recording and reproducing apparatus should take into consideration not only a basic function of recording and reproducing a high density recording medium, but also an additional function considering the integrated use of the peripheral related digital apparatus. In general, it is considered that a function of receiving an external input signal, controlling the reproduction by using it or using it, or reproducing the external input signal by using the contents recorded on the high density recording medium together.

However, in the current high-density recording medium-related standards, there are no standardized specifications for achieving the above-mentioned additional functions, and therefore, there is a great limitation in developing an optical recording and reproducing apparatus based on a full-scale high-density recording medium.

SUMMARY OF THE INVENTION The present invention provides a recording medium playback apparatus capable of playing back AV data existing outside a recording medium such as an online advertisement and a trailer introduction video of a new movie in the process of reproducing AV data recorded on a recording medium, .

Another object of the present invention is to provide a method and apparatus for reproducing AV data recorded on a recording medium, which can be provided in real time by a maker of a recording medium, And to provide a recording medium playback apparatus and method therefor.

According to another aspect of the present invention, there is provided a recording medium reproducing apparatus capable of reproducing AV data existing outside a recording medium in accordance with reproduction management information recorded on a recording medium in a process of reproducing AV data recorded on the recording medium, Method.

Another object of the present invention is to provide a recording medium playback apparatus and method capable of playing back AV data existing outside a recording medium without affecting the playback process of the AV data recorded on the recording medium .

It is another object of the present invention to provide a method and apparatus for recording AV data on a recording medium such as an online advertisement designated by a manufacturer who produced the recording medium without affecting the reproduction process of the AV data recorded on the recording medium, There is provided a computer-readable recording medium storing a code for causing a computer capable of reproducing existing AV data to be recorded.

According to an aspect of the present invention, there is provided a recording medium reproducing apparatus comprising: an external device interface for reading AV data and reproduction management information recorded on a recording medium; And a processor for detecting auxiliary data from an external resource based on the reproduction management information and for processing the detected auxiliary data in accordance with the reproduction state of the AV data. Here, the playback state of the AV data includes a playback ready state, a playback stop state, and a playback end state.

Preferably, the processing unit confirms the reproduction state of the AV data on the basis of the reproduction management information or the user input signal.

Preferably, the processing unit stores the detected auxiliary data and processes the stored auxiliary data to be reproduced.

According to another aspect of the present invention, there is provided a recording medium playback method including: reading playback management information from a recording medium; Detecting auxiliary data from an external resource based on the reproduction management information; A confirming step of confirming the reproduction state of the AV data recorded on the recording medium; And reproducing the detected auxiliary data when the reproduction state of the AV data is the reproduction ready state, the reproduction interrupted state, or the reproduction end state.

Preferably, the recording medium reproducing method according to the present invention further includes storing the detected auxiliary data.

Preferably, in the checking step, the reproduction state of the AV data is confirmed based on the reproduction management information or the user input signal.

According to another aspect of the present invention, there is provided a recording medium including: a stream area for recording AV data; And a management information area in which reproduction management information is recorded, wherein the reproduction management information detects an auxiliary data from an external resource and executes the application for controlling the reproduction in accordance with the reproduction state of the AV data . ≪ / RTI >

Preferably, the reproduction management information further includes information for detecting the auxiliary data.

According to the recording medium playback apparatus and method of the present invention, AV data existing outside the recording medium can be played back in the process of playing back the AV data recorded on the recording medium, so that the viewer can enjoy the trailer video of the latest movie, The latest image such as the latest image such as video and the latest movie poster can be viewed in real time and the producer or the movie producer who has made the recording medium can view the advertisement image or image such as the product advertisement image, HD-DVD and Blu-ray titles can be lowered, so viewers can enjoy DVDs, HD-DVDs, Blu-ray Discs Titles can be purchased.

Further, since the reproduction state of the AV data recorded on the recording medium is confirmed based on the reproduction management information or the user input signal recorded on the recording medium and the AV data existing outside the recording medium is reproduced according to the reproduction state, It is possible to reproduce the AV data existing outside the recording medium without affecting the reproduction process of the AV data and to prevent the reproduction delay of the AV data recorded on the recording medium due to the trailer image of the latest movie and the reproduction of the online advertisement image, It is possible to maximize the viewing satisfaction.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The structure and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical ideas and the core structure and operation of the present invention are not limited thereby.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, it is to be understood that the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and on the contents of the present invention throughout.

1 is a block diagram showing an embodiment of an integrated use between a recording medium reproducing apparatus and a peripheral device according to the present invention.

Referring to FIG. 1, a recording medium reproducing apparatus 10 according to the present invention can record or reproduce optical discs of various standards. Depending on the design, only an optical disc of a specific standard (for example, HD-DVD) can be recorded and reproduced, and it is also possible to make only the reproduction possible except recording. It is a matter of fact that the recording medium reproducing apparatus 10 according to the present invention can be a "drive"

The recording medium reproducing apparatus 10 according to the present invention receives the external input signal, processes the received external input signal, and transmits the signal to the user through the display 20 . In this case, there is no particular limitation on the input external input signal. For example, digital broadcasting (DTV) and Internet (Internet) will be exemplary external input signals. Particularly, in the case of the Internet, it is possible for anyone to easily access specific data on the Internet through the recording medium reproducing apparatus 10 as a medium which can be readily accessed by anyone. In the case where main data is recorded on the loaded optical disc and auxiliary data associated with the main data exists in an external source such as the Internet, The playback apparatus 10 can seek efficient playback by integrating main data and auxiliary data.

The signal recorded in the recording medium 30 is referred to as "main data ", and the signal present outside the recording medium 30 is referred to as" auxiliary data " However, the "main data" and the "auxiliary data" are classified according to the method of acquiring the data, and the main data and the auxiliary data are not necessarily limited to the specific data. Accordingly, for example, the auxiliary data generally includes audio, image, presentation graphics (PG), text subtitle, interactive graphics (IG) . However, the present invention is not limited to the above-described example, and any data associated with the main data existing outside the recording medium 30 may be auxiliary data.

Specifically, for example, a video stream and an audio stream (for example, Korean) for a specific movie are recorded in the main data recorded in the recording medium 30 and recorded on the recording medium 30 with auxiliary data on the Internet. (For example, English) for a video stream of a specific movie recorded in main data in the main data, the user downloads the audio stream (English), auxiliary data on the Internet, There may be a request to play together. While the "main data" is not output to the display 20, the recording medium reproducing apparatus 10 can download the video stream on the Internet and output it to the display 20 as auxiliary data. That is, the recording medium reproducing apparatus 10 can simultaneously reproduce the auxiliary data with the main data, and selectively output the auxiliary data and the main data. To this end, the recording medium reproducing apparatus 10 performs a systematic function of managing and reproducing the main data and the auxiliary data according to the device status such as the reproduction status and the user's request.

2 is a block diagram showing a preferred embodiment of the internal structure of a recording medium reproducing apparatus according to the present invention.

2, a recording medium reproducing apparatus 10 according to the present invention includes a processing unit 11, an external device interface 12, a device interface 13, a network interface 14, and a user interface 15 .

The external device interface 12 reads and outputs the AV data and the reproduction management information recorded in the recording medium 30. The processing unit 11 can write data to the recording medium 30 through the external device interface 12. [ The recording medium 30 includes a semiconductor memory such as a disk or a memory card including a CD-ROM, a CD-R (-RW), a DVD-ROM (-R / Point. The external device interface 12 can read data recorded in the recording medium 30 even if the data recorded in the recording medium 30 is recorded in a device other than the recording medium reproducing device 10 . AV data refers to all or some of video, audio, subtitles, or information necessary for reproducing them.

The term "reproduction management file" means management data for reproducing data recorded in the recording medium 30 and data existing outside the recording medium 30. [ In particular, HD-DVD is also referred to as "PlayList" for example. A more detailed description of the reproduction management information in conjunction with the entire file structure will be described later with reference to FIG. 5 and FIG. In this context, the term "PlayList" in the present invention refers to playback management information, and it is obvious that the playback management information can be used in different terms in recording media of other standards than HD-DVD. It should be apparent, however, that the present invention also falls within the technical scope of the present invention.

The playback management information may also include application code / data. Here, the application code refers to all or a part of the information necessary for executing the application, and may be an application program.

Also, integrated AV data or playback management information having meaning is defined as content. The content is composed of the whole files constituting the AV data corresponding to one title, the program files constituting one game or application, and the entire data files, for example.

The "PlayList" can be viewed as a constituent component of the HD-DVD advanced content. Here, HD-DVD advanced content is a content that supports the title maker to organize his / her menu screen in an arbitrary form, and includes functions such as PIP (Picture in Picture), Setup screen, representative screen, bookmark, Can be provided. In addition, HD-DVD advanced content can also provide functions such as U-Control and IME (In Movie Experience).

For example, the HD-DVD advanced content may include a Playlist, an Advanced Application, a Primary Video Set, a Secondary Video Set, an Advanced Subtitle, and a Configuration File.

The network interface 14 can download and output data from the external resource 40 connected to the network 17 via the network 17. [ Here, the network 17 may be a wired or wireless Internet network. The external resource 40 is an information communication device capable of data communication such as a general PC, a server device, and the like.

The user interface 15 is connected to the input device 19 and the display 20. The processing unit 11 outputs AV data or the like to the display 20 through the user interface 15 to view the AV data to the user. The user request input from the input device 19 is transmitted to the processing unit 11 through the user interface 15. [ Here, the input device 19 may be a device mounted on the recording medium playback apparatus 10, or may be a remote controller for wirelessly transmitting a user request signal.

The device interface 13 can read data from the storage unit 50 and output the data or write the data output from the processing unit 11 to the storage unit 50. [ That is, the processing unit 11 may store the auxiliary data downloaded from the external resource 40 through the network interface 14 in the storage unit 50. Here, the storage unit 50 may be an internal or external hard disk, or may be a memory such as SRAM, DRAM, or the like.

The processing unit 11 can play back the AV data or execute the application through the data output from the external device interface 12, the device interface 13, the network interface 14 and the user interface 15. [

The processing unit 11 also detects the auxiliary data from the external resource 40 based on the reproduction management information read by the external device interface 12. [ For example, the reproduction management information read by the external device interface 12 may be a URL (uniform resource locator) for downloading auxiliary data. As another example, the reproduction management information read by the external device interface 12 may be the IP address of the external resource 40 providing the URL information for downloading the auxiliary data and the port number of the Web listener of the external resource 40 have. In this case, when the recording medium playback apparatus 10 accesses the external resource 40 through the http protocol using the IP address and / or the port number of the Web listener of the external resource 40, And provides URL information on the data to the recording medium playback apparatus 10. [ Then, the recording medium playback apparatus 10 can receive the URL information provided by the external resource 40, and can detect the auxiliary data from the external resource 40 based on the received URL information.

Further, the processing section 11 processes the detected auxiliary data in accordance with the reproduction state of the AV data recorded on the recording medium 30. That is, the processing unit 11 confirms the non-reproduction state of the AV data recorded on the recording medium 30 and if the state is not reproduced, the processing unit 11 displays the auxiliary data through the user interface 15 on the display 20 To display the auxiliary data to the user. The reproduction state of AV data recorded on the recording medium 30 includes a reproduction ready state, a reproduction state, a reproduction stop state, and a reproduction completion state. The reproduction ready state refers to a state in which the recording medium reproducing apparatus 10 prepares for reproduction of the AV data recorded on the recording medium 30 and the reproducing state refers to a state in which the recording medium reproducing apparatus 10 records the AV data on the recording medium 30 And outputs the recorded AV data to the display 20. The reproduction stop state is a state in which reproduction is stopped and the reproduction end state is a state in which the reproduction of the AV data recorded on the recording medium 30 is completed in the reproduction state or the reproduction end request is inputted from the input device 19 . Therefore, the reproduction ready state, the reproduction stop state, and the reproduction end state correspond to a state in which the AV data recorded on the recording medium 30 is not reproduced.

The processing unit 11 also confirms the reproduction state of the AV data recorded on the recording medium 30 on the basis of the reproduction management information or the user input signal read by the external device interface 12. [ Here, the user input signal means a user request signal input from the input device 19. [ For example, the processing unit 11 can check the time for preparing the reproduction of the AV data recorded on the recording medium 30 based on the reproduction management information read by the external device interface 12, and grasp the reproduction ready state. As another example, the processing unit 11 can grasp the state in which the power of the recording medium reproducing apparatus 10 is turned on as a state ready for reproduction. As another example, the processing section 11 can grasp the case where the playback interruption request is input from the input device 19 in the playback state as the playback interruption state. Here, the case where the playback interruption request is input from the input device 19 and there is no input of the user input signal for a preset time can be grasped as the playback interruption state. As another example, the processing unit 11 can grasp the case where the reproduction end request is input from the input device 19 as the reproduction end state. As another example, the processing unit 11 can recognize the case where a tray open request is input from the input device 19 as a reproduction end state.

The processing unit 11 may also store the auxiliary data detected from the external resource 40 in the storage unit 50. [ When the reproduction state of the AV data recorded in the recording medium 30 is the reproduction ready state, the reproduction stop state and the reproduction end state, the processing unit 11 outputs the auxiliary data stored in the storage unit 50 And reproduced. Especially when auxiliary data is stored in the storage unit 50, even when the power of the recording medium reproducing apparatus 10 is turned on or when a tray open request is inputted from the input device 19, ) Can be made to reproduce the auxiliary data.

3 is a block diagram showing a preferred embodiment of an external recording medium of the recording medium reproducing apparatus according to the present invention and a configuration for processing data.

3, the recording medium reproducing apparatus 300 includes a recording and reproducing section 310, a processing section 320, and a storage section 330. The recording and playback section 310 is a component corresponding to the external device interface 12 of the recording medium playback apparatus 10 and the processing section 320 is a component corresponding to the processing section 11 of the recording medium playback apparatus 10 And the storage unit 330 is a component corresponding to the storage unit 50 of the recording medium playback apparatus 10.

The recording and playback section 310 reads data from the recording medium 30 or the storage section 330 under the control of the processing section 320 and provides the data to the processing section 320 from the viewpoint of reproduction. That is, the recording and playback section 310 serves as a playback section that reads data from the viewpoint of playback. From the viewpoint of recording, the recording and playback section 310 receives the signal encoded by the processing section 320 and becomes a recording section for recording video, audio data, and the like on the recording medium 30. [ To this end, the recording and playback unit 310 includes a pickup 311, a server 312, a signal processing unit 313, and a microcomputer 314.

The pickup 311 reads the AV data and the reproduction management information recorded on the recording medium 30 from the recording medium 30. To this end, the pickup 311 may perform focusing and tracking, and may incorporate an actuator for performing focusing and tracking.

The servo 312 controls the operation of the pickup 311. That is, the servo 312 controls the focusing and tracking of the pickup 311 so that the reproducing signal associated with the AV data or the reproduction management information requested by the recording medium reproducing apparatus 300 can be read out from the recording medium 30.

The signal processing unit 313 reconstructs the reproduction signal received from the pickup 311 to a desired signal value or modulates the signal to be recorded into a signal to be recorded on the recording medium 30 and outputs the modulated signal to the pickup 311 . That is, the signal processing unit 313 restores the AV data received from the pickup 311 or the reproduction signal associated with the reproduction management information, and outputs the restored signal to the processing unit 320. [

The microcomputer 314 controls the operation of the signal processor 313. Here, the function of the microcomputer 314 may be performed by the processing unit 320. [

The processing unit 320 processes the AV data output from the recording and playback unit 310 to be reproduced or detects the auxiliary data from the external resource 40 based on the reproduction management information and processes the detected auxiliary data. To this end, the processing unit 320 includes a control unit 321, an AV decoder 322, and an AV encoder 323.

The control unit 321 separates the AV data and playback management information output from the recording and playback unit 310 and outputs the AV data to the AV decoder 322. [ Here, the control unit 321 may control the output of the AV data or the operation of the AV decoder 322 according to a signal input from the input device 19. For example, when the reproduction end request is input from the input device 19, the control section 321 can stop the output of the AV data or stop the operation of the AV decoder 322. [

Further, the control unit 321 parses the reproduction management information and extracts information for detecting the auxiliary data from the external resource 40 included in the reproduction management information. The control unit 321 detects auxiliary data from the external resource 40 based on the extracted information. The control unit 321 may also store the detected auxiliary data in the storage unit 330. FIG.

The control unit 321 processes the detected auxiliary data in accordance with the AV data reproduction state output from the recording and playback unit 310. [ The control unit 321 outputs the auxiliary data to the AV decoder 322 and outputs the auxiliary data to the AV decoder 322. In this case, when the AV data reproducing state output from the recording / reproducing unit 310 is in the reproduction ready state, . The control unit 321 can also grasp the AV data playback state output from the recording and playback unit 310 based on the playback management information output from the recording and playback unit 310 or the user input signal input from the input device 19 .

Here, the controller 321 and the microcomputer 314 may be provided separately. It is also possible that the functions of the control unit 321 and the microcomputer 314 are integrated to operate as a single unit.

The AV decoder 322 decodes the AV data or the auxiliary data output by the control unit 321 and outputs the decoded AV data or auxiliary data. That is, the AV decoder 322 finally decodes the AV data or the auxiliary data, which is the output data outputted by the control unit 321 under the control of the control unit 321, and outputs it to the display 20 through the user interface 15.

The AV encoder 323 converts an input signal into a signal of a specific format, for example, an MPEG2 transport stream under the control of the controller 321 for performing a function of recording a signal on the recording medium 30, 313).

Fig. 4 is a block diagram showing a configuration of a preferred embodiment of the processing unit shown in Fig. 2. Fig.

The processing unit 400 is a component corresponding to the processing unit 11 of the recording medium playback apparatus 10 and includes a loader 410, a controller 420, a native engine 430, an AV engine AV Engine 440, a Playlist Engine 450, an Advanced Application Engine 460, an Advanced Subtitle Engine 470, and an Image Decoder 480 Respectively.

The loader 410 can read the content recorded on the recording medium 30 and write it to the storage unit 50 or output it to the control unit 420. [ Then, the loader 410 can receive the load command from the content and execute the load processing. Here, the content refers to an application executed by a code included in the reproduction management information recorded on the recording medium 30.

The control unit 420 checks whether the recording medium 30 is a DVD or an HD-DVD based on the content output by the loader 410. [ When the recording medium 30 is a DVD, the control unit 420 outputs the content output by the loader 410 to the native engine 430. [ If the recording medium 30 is an HD-DVD, the control unit 420 outputs the content output by the loader 410 to the playlist engine 450. [

The native engine 430 outputs the content output by the control unit 420 to the AV engine 440. The AV engine 440 decodes the content output by the control unit 420 and reproduces the content on the screen 406. Here, the screen 406 is a component corresponding to the display 20 of the recording medium playback apparatus 10.

The playlist engine 450 parses the content output by the controller 420 and extracts image data, AV data excluding an image, an Advanced Application file, an Advanced Subtilte file, and playlist information. The playlist engine 450 converts the image data, the AV data, the Advanced Application file, and the Advance Subtil file into the image decoder 480, the AV engine 440, the advanced application engine 460, (470).

The playlist engine 450 further parses the reproduction management information thus calculated to extract information for detecting auxiliary data from the external resource 40. [ Then, the playlist engine 450 detects auxiliary data from the external resource 40 based on the extracted information. Here, the playlist engine 450 may store the detected auxiliary data in the storage unit 50. [

Then, the playlist engine 450 processes the detected auxiliary data in accordance with the extracted AV data reproduction state. When the extracted AV data reproduction state is the reproduction ready state, the reproduction stop state, or the reproduction end state, the playlist engine 450 outputs the auxiliary data to the AV engine 440 or the image decoder 480 so that the auxiliary data is reproduced . Also, the playlist engine 450 can grasp the AV data reproduction state extracted based on the extracted reproduction management information or the input signal output from the key handler (402).

Here, the key handler 402 receives a user request signal input by a viewer or a user through the input device 19 from a key receiver 401, converts the user request signal into a user input signal, . The key receiver 401 may be implemented as a light receiving unit and the input device 19 may transmit a user request signal input by a user to a key receiver by infrared rays, And outputs the encoded user request signal to the control unit 420. The control unit 420 receives the user request signal, The control unit 420 outputs the user input signal output by the key handler 402 to the playlist engine 450.

The advanced application engine 460 parses the Advanced Application file to generate a menu screen and displays the generated menu screen on the screen 406.

The Advanced Sub Title Engine 470 parses the Advanced Subtilte file including the subtitle related information and displays the subtitle on the screen 406. The Advanced Sub Title Engine 470 can display the subtitles on the screen 406 by changing design such as character size, font, color, font size, etc. according to the information included in the Advanced Subtilte file.

The AV engine 440 outputs AV data or auxiliary data output from the native engine 430 or the playlist engine 450 to the screen 406 so as to be decoded and reproduced. That is, the AV engine 440 finally decodes the AV data or the auxiliary data, which is the output data output by the native engine 430 or the playlist engine 450, and outputs the AV data or auxiliary data to the stream 406.

The image decoder 480 decodes the image data among the AV data or the auxiliary data output by the playlist engine 450 and outputs the decoded image data. That is, the image decoder 480 receives the image data from the AV data or the auxiliary data, which is the data output from the playlist engine 450, and finally decodes the image data and outputs the decoded image data to the screen 406.

5 is a diagram illustrating a structure of a playlist file according to an embodiment of the present invention.

5, the playlist file 500 includes a Configuration element 510, a MediaAttributeList element 520, and a TitleSet element 530. [ The configuration element 510 has information such as a size of a streaming buffer, a main color of a main video, and the like. The MediaAttributeList element 520 has video information such as codec, aspect ratio, resolution, and bitrate, and audio information such as codec, sample rate, and bitrate.

The TitleSet element 530 includes a FirstPlayTitle element 531, an onlineContent element 533, a Title element 535, and a PlaylistApplication element 537. The FirstPlayTitle element 531 has information on the first play title and is played before the first title. The first play title element 531 plays a logo clip or the like of a movie clips company.

The Title element 535 has information such as video information, audio information, caption information, and chapter list of each Title.

6 is a conceptual diagram showing a relationship between a Title element and a clip.

Referring to FIG. 6, the tile element 535 includes PrimaryAudioVideoClip 551, SecondaryAudioVideoClip 552, SubstituteAudioVideoClip 553, SubstituteAudioClip 554, Advanced SubtitleSegment 555, ApplicationSegment 556. The PrimaryAudioVideoClip 551 has clip information 611, 612, and 613 for AV data. The clip information 611, 612, and 613 includes information for reproducing the specific AV stream 621, 622, and 623 recorded on the recording medium 30. That is, the AV stream # 1 621 is reproduced by the clip information # 1 611 and the AV stream # 2 622 reproduced by the clip information # 2 612 is reproduced by the clip information # 3 613 AV stream # 3 623 is reproduced.

The PlaylistApplication element 537 has information on the URL position and the resource position of the playlist.

FIG. 7 illustrates a structure of a playlist file according to another embodiment of the present invention, and FIG. 8 illustrates a specification of an example of a playlist schema according to the present invention.

7 and 8, the OnlineContent element 533 includes information for detecting the auxiliary data from the external resource 40 and information for reproducing the auxiliary data. For example, the OnlineContent element 533 is added (810) to the TitleSet element 530 of the HD-DVD Playlist schema and has an OnlineContentType (820).

Each attribute and element of the OnlineContentType 820 has a contentType 710 as an attribute, and a slideContentType 720 and a videoContentType 740 as elements.

If we look at each attribute and element of slideContentType (720), we have interval (721) as attribute and image (722) as element. image 722 again has url 731, mimeValue 732, width 733, and height 734 as sub-attributes.

image 722 represents a slide image for preview. The image of the slide appears several times without limitation. Here, image 722 may be one or a plurality of images.

The URL 731 is a string defining the address or protocol of the resource as the url Type 830, and can use the format defined in IETF RFC 2396: "Uniform Resource Identifiers (URI): Generic Syntax". That is, the url 731 is an example having information for detecting an image which is auxiliary data from the external resource 40. [

mimeValue (732) indicates the resource type and can provide the type defined in IETF RFC 2046: "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types" in the form of a string. That is, mimeValue (732) indicates the type of the image, which is auxiliary data, and indicates, for example, image types such as pnp, gif, jpg, and tif.

The width 733 represents the horizontal size of the image, and the height 734 represents the vertical size of the image.

The interval 721 indicates the time at which each image 722 is reproduced on the screen. That is, the image 722 is displayed on the screen for the time specified in the interval 721, and then passed to the next image.

The videoContentType 740 indicates a video stream, and has url 741 and mimeValue 745 as attributes. url (741) is a string defining the address or protocol of the resource as the url Type (830), and can use the format defined in IETF RFC 2396: "Uniform Resource Identifiers (URI): Generic Syntax". Namely, the url 741 is an example having information for detecting the video stream which is the auxiliary data from the external resource 40.

mimeValue (745) indicates the resource type and can provide the type defined in IETF RFC 2046: "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types" in the form of a string. Namely, mimeValue 745 indicates a type of video stream which is auxiliary data, and indicates a video stream type such as mpeg, avi, mov, swf, and the like.

9 is a diagram showing a preferred embodiment of a data recording structure recorded on a recording medium according to the present invention.

9, starting from an inner circumference (or center), a disc volume is divided into a file system information area (file system information area) occupying the innermost portion, An AV stream area 930 occupying the outmost portion and a database area 920 occupying a space between the file system information area 910 and the AV stream area 930 do. In the file system information area 910, system information for managing the entire file is recorded. In addition, AV data such as audio / video / graphics are recorded in the AV stream area 930. As described above, data recorded in the AV stream area 930 can be named as main data.

The reproduction management information is recorded in the database area 920. Here, the reproduction management information recorded in the file database area 920 includes a code for detecting ancillary data from the external resource 30 and for executing an application for controlling the reproduction of the ancillary data detected according to the reproduction state of the main data do. The reproduction management information recorded in the database area 920 may further include information for detecting auxiliary data from the external resource 30. [

Therefore, the recording medium playback apparatus 10 can select the AV data that need to be played back based on the information in the database area 920, and determine the playback method of the selected AV data.

FIG. 10 is a flowchart illustrating a process of performing a preferred embodiment of a recording medium reproducing apparatus according to the present invention.

Referring to FIG. 10, the external device interface 12 reads the reproduction management information from the recording medium 30 (S1000). The processing unit 11 detects the auxiliary data from the external resource 40 based on the reproduction management information (S1010). The processing unit 11 stores the detected auxiliary data in the storage unit 50 (S1020). Then, the processing unit 11 confirms the reproduction state of the main data (S1030). The processing unit 11 can confirm the reproduction state of the main data based on the reproduction management information read from the recording medium 30 by the external device interface 12 or the user input signal inputted from the user interface 15. [

The processing unit 11 stores the screen value currently displayed on the display 20 in the storage unit 50 in step S1040. The processing unit 11 outputs the detected auxiliary data to the user interface 15 (S1050). The processing unit 11 confirms whether the user input signal is inputted from the user interface 15 (S1060).

When a user input signal is input from the user interface 15, the processing unit 11 outputs the screen value stored in the storage unit 10 to the user interface 15 so that the screen value is displayed on the display 20 (S1070).

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer apparatus is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing an embodiment of an integrated use between a recording medium reproducing apparatus and a peripheral device according to the present invention; Fig.

2 is a block diagram showing a preferred embodiment of the internal structure of a recording medium reproducing apparatus according to the present invention.

FIG. 3 is a block diagram showing an embodiment of the present invention for an external recording medium and a configuration for processing data of the recording medium reproducing apparatus according to the present invention. FIG.

Fig. 4 is a block diagram showing the configuration of a preferred embodiment of the processing unit shown in Fig. 2;

5 is a diagram illustrating a structure of a playlist file according to an embodiment of the present invention.

6 is a conceptual diagram showing a relationship between a Title element and a clip,

7 is a diagram illustrating a structure of a playlist file according to another embodiment of the present invention.

Figure 8 illustrates a specification of an example of a playlist schema according to the present invention,

9 is a view showing a data recording structure recorded on a recording medium according to the present invention,

FIG. 10 is a flowchart illustrating a process of performing a preferred embodiment of a recording medium reproducing apparatus according to the present invention.

Claims (9)

An external device interface for reading AV data and reproduction management information recorded on a recording medium; And And a processing unit for detecting auxiliary data from an external resource based on the reproduction management information and for processing the detected auxiliary data in accordance with the reproduction state of the AV data, Wherein the reproduction management information includes an onlineContent element having information for detecting the auxiliary data and information for reproducing the auxiliary data from the external resource. The method according to claim 1, Wherein the playback state of the AV data includes at least one of a playback ready state, a playback stop state, and a playback end state. The method according to claim 1, Wherein the processing unit confirms the reproduction state of the AV data based on the reproduction management information or the user input signal. The method according to claim 1, Wherein the processing unit stores the detected auxiliary data and processes the stored auxiliary data to be reproduced. Reading reproduction management information from a recording medium; Detecting auxiliary data from an external resource based on the reproduction management information; A confirming step of confirming the reproduction state of the AV data recorded on the recording medium; And And reproducing the detected auxiliary data when the reproduction state of the AV data is one of a reproduction ready state, a reproduction stop state and a reproduction end state, Wherein the reproduction management information includes an onlineContent element having information for detecting the auxiliary data and information for reproducing the auxiliary data from the external resource. 6. The method of claim 5, Further comprising the step of storing the detected auxiliary data. 6. The method of claim 5, In the checking step, Wherein the reproduction state of the AV data is confirmed based on the reproduction management information or the user input signal. A stream area in which AV data is recorded; And And a management information area in which reproduction management information is recorded, The reproduction management information includes: And a program for detecting an auxiliary data from an external resource and executing an application for controlling reproduction of the detected auxiliary data in accordance with the reproduction state of the AV data. 9. The method of claim 8, Wherein the reproduction management information further includes information for detecting the auxiliary data.

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