KR20080055574A - Medium, method and apparatus for storing data, and method and apparatus for reproducing data - Google Patents

Abstract

A medium, a method and an apparatus for storing data, and a method and an apparatus for reproducing data are provided to control operation of a pickup, a signal processing part, a servo, and an interactive module by a microcomputer in order to play various interactive contents effectively and obtain backward-compatibility between reproducing apparatuses. A control part(12) controls a storage part to store content units and menu information in a medium. A servo(14) controls operation of a pickup(11). A signal processing part(13) modulates a signal to be recorded into a signal recordable in a recording media. An interactive module(15) processes an interactive object. A microcomputer(16) controls the operations of the pickup, the signal processing part, the servo, and the interactive module. Data is read from a recording medium(30), the interactive module, and a storage(19) according to the control of the control part. A clip AV stream and the management information on the clip AV stream are recorded in the recording medium. An AV decoder(17) includes a video decoder, an audio decoder, a subtitle decoder, and an interactive decoder.

Description

Medium, method and apparatus for storing data, and method and apparatus for reproducing data {Medium, method and apparatus for storing data, and method and apparatus for reproducing data}

Figure 1 is shown to aid the conceptual understanding of the present invention, it is shown to show an example of the integrated use between the optical recording and playback device and peripherals.

2 conceptually illustrates the relationship between the recording medium of the present invention and an apparatus for recording and reproducing the recording medium.

3 shows one embodiment of the overall configuration of an optical recording and reproducing apparatus.

4 shows a recording structure of data recorded on the recording medium of the present invention.

5 is shown to help conceptually understand the title reproduction of the present invention.

Fig. 6 shows an example of reproduction of the interactive content by the level B recording / playback apparatus.

7 shows an example of reproduction of interactive content by the optical recording and reproducing apparatus of the present invention.

8 to 13 illustrate embodiments of menus generated by the optical recording and reproducing apparatus of the present invention using information for A / V reproduction.

14 to 18 show embodiments of the reproduction management information including information used by the optical recording and reproducing apparatus of the present invention to reproduce the interactive content without executing the interactive object.

20 shows an example in which interactive content is reproduced in the optical recording and reproducing apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

11 pickup 12 controller

13 signal processing unit 14 servo

15: interactive module 16: microcomputer

17: AV decoder 18: AV encoder

19: storage

The present invention relates to a medium, a data storage method and apparatus, and a data reproduction method and apparatus.

As a recording medium, an optical disk capable of recording a large amount of data is widely used. In particular, new high-density recording media that can record and store high-quality video data and high-quality audio data for a long time, such as Blu-ray Disc (BD) and High-Definition DVD (HD-DVD: High Definition) Digital Versatile Disc) is being developed.

In addition, the development of the high-density recording medium provides a function of networking with the outside of the recording medium, integrated reproducing function of the recording medium and data stored outside the recording medium. In addition, it is possible to provide data in which the interactivity with the user remarkably exceeds the existing recording medium.

Recently, development of an optical recording and reproducing apparatus capable of reproducing data in the high density recording medium and data existing outside the recording medium has been in progress. However, it is true that the development is difficult due to the linkage between the optical recording and reproducing apparatus and the peripheral period, and the specification related to the high density recording medium being not fully completed.

The present invention was created in view of the above circumstances, and provides a method and apparatus for generating content, a method and apparatus for playing the content, and a method and apparatus for storing the content, including data which guarantees interactivity with a user. The purpose is to provide.

In order to achieve the above object, the present invention provides one or more content units; And

Provided is a medium comprising menu information used to create a menu listing at least one of the one or more content units, without executing an interactive application.

In addition, the present invention generates menu information used to generate one or more content units, a menu listing at least one of the one or more content units without execution of an interactive application, the one or more content units and the It provides a data storage method characterized by storing the menu information.

The present invention also provides a storage unit for storing data in a medium; And generate menu information used to generate a menu listing one or more content units and at least one of the one or more content units without executing an interactive application, and control the storage to control the one or more content units and the menu information. It provides a data storage device comprising a control unit for storing in the medium.

The present invention also includes an embodiment in which the menu information includes data type information indicating whether the menu unit can reproduce the content unit without executing the interactive application.

In addition, the present invention includes an embodiment in which the menu information further includes path information of a file including a representative image of the content unit.

The present invention also includes an embodiment in which the menu information further includes detailed description information about the content unit.

The present invention also includes an embodiment in which the menu information further includes device condition information indicating a capability of the device capable of playing the content unit.

The present invention also includes an embodiment in which the menu information further includes path information of a file including a still image to be reproduced together with the audio data when the content unit is an audio content unit composed of audio data.

The invention also encompasses embodiments in which the content unit is a title or chapter.

In addition, the present invention analyzes the reproduction management information for one or more content units to generate a menu listing at least one of the content units based on the reproduction management information, wherein the reproduction management information is executed without executing an interactive application. And menu information used to generate the menu.

The present invention also provides a reproduction unit for reproducing data; And a controller configured to analyze playback management information of at least one content unit and to generate a menu for listing at least one of the content units based on the playback management information, wherein the playback management information is executed without executing an interactive application. And menu information used to generate the menu.

The present invention also provides an embodiment in which the menu generation confirms, from the menu information, data type information indicating whether the listed content unit can be reproduced without executing the interactive application, and generates the menu to include the data type information. It includes.

In addition, the present invention is characterized in that the path information of the file storing the representative image of the listed content unit from the menu information to reproduce the representative image, characterized in that to generate the menu to include the representative image Provided is a method for reproducing data.

The present invention also provides a reproduction unit for reproducing data; And a controller configured to analyze playback management information of at least one content unit and to generate a menu for listing at least one of the content units based on the playback management information, wherein the playback management information is executed without executing an interactive application. And menu information used to generate the menu.

In addition, the present invention includes an embodiment of confirming detailed information on the listed content unit from the menu information and displaying the detailed description information together with the menu.

In addition, the present invention is to compare the performance of the playback device with the device condition information defined for each content unit in the menu information, the menu generation to identify the content unit that can be reproduced by the playback device of the one or more content units, And an apparatus for generating a device menu for listing content units that can be reproduced by the playback device.

In addition, when the listed content unit is an audio content unit composed of audio data, the path information of the file including the still image to be reproduced together with the audio data is checked from the menu information, and the audio data is stored in the still content unit. Includes an embodiment for playing with images.

In addition, the present invention provides at least one content unit; And providing playback management information for the one or more content units for each performance of the playback apparatus, wherein the performance of the playback apparatus is classified according to whether the interactive application can be processed.

The present invention also includes an embodiment in which the medium includes first playback management information for a playback device that cannot process an interactive application and second playback management information for a playback device that can process the interactive application. .

The present invention also includes an embodiment in which the first reproduction management information includes menu information used to generate a menu for listing at least one of the one or more contents without executing the interactive application.

In addition, the present invention generates the performance management information for each of the one or more content units and the one or more content units, and stores the one or more content units and the reproduction management information for each performance, wherein the performance management information is interactive A first storage management information for a playback apparatus that cannot process an application and a second playback management information for a playback apparatus that can process the interactive application are provided.

The present invention also provides a storage unit for storing data in a medium; And a control unit for generating performance management information for each performance in one or more content units and the one or more content units, and controlling the storage to store the one or more content units and the performance management information for each performance. The management information provides a data storage device comprising first playback management information for a playback device that cannot process an interactive application and second playback management information for a playback device that can process the interactive application. .

In addition, the present invention provides at least one content unit; And reproducing management information of the content unit for each performance of the reproducing apparatus, and selecting reproducing management information that matches the performance of the reproducing apparatus from among the first and second reproducing management information for one or more content units. And reproduce at least one of the one or more content units based on the selected reproduction management information, wherein the first reproduction management information is reproduction management information for a reproduction device that cannot process an interactive application, and the second reproduction management The information provides a data reproducing method, characterized in that the reproduction management information for a reproducing apparatus capable of processing the interactive application.

The present invention also provides a reproduction unit for reproducing data; And selecting playback management information corresponding to the performance of the playback apparatus from among the first playback management information and the second playback management information for one or more content units, and controlling the playback unit to control the playback unit based on the selected playback management information. And a control unit configured to play back at least one of the content units, wherein the first playback management information is playback management information for a playback device that cannot process an interactive application, and the second playback management information may process the interactive application. Provided is a data reproducing apparatus, which is reproducing management information for a reproducing apparatus.

In addition, the present invention provides at least one content unit; And playback management information for the one or more content units for each version of a playback device, wherein the version-specific playback management information is used to create a menu listing at least one of the one or more content units without executing an interactive application. A medium is provided which includes first playback management information for a playback device that cannot interpret menu information and second playback management information for a playback device that can interpret the menu information.

In addition, the present invention generates one or more content unit and the reproduction management information for each version of the one or more content units, and stores the one or more content unit and the reproduction management information for each version, wherein the reproduction management information for each version is the First playback management information for a playback device that cannot interpret menu information used to create a menu listing at least one of one or more content units without executing an interactive application, and a playback device that can interpret the menu information It provides a data storage method comprising a second playback management information for.

The present invention also provides a storage unit for storing data in a medium; And generating reproduction management information for each of the one or more content units and the one or more content units, and controlling the storage unit to store the one or more content units and the reproduction management information for each of the versions on the medium. The management information includes first reproduction management information for a playback device that cannot interpret menu information used to generate a menu listing at least one of the one or more content units without execution of an interactive application, and to interpret the menu information. It provides a data storage device comprising a second playback management information for the playback device capable of.

Also, the present invention selects one or more content units and playback management information for the one or more content units from the first playback management information and the second playback management information for the playback management information that matches the version of the playback device. A menu used to reproduce at least one of the one or more content units based on the selected reproduction management information, wherein the first reproduction management information is used to generate a menu listing the at least one content unit without executing an interactive application; And playback management information for a playback device that is unable to interpret information, and wherein the second playback management information is playback management information for a playback device that can interpret the menu information.

The present invention also provides a reproduction unit for reproducing data; And select playback management information corresponding to a version of a playback device from among the first playback management information and the second playback management information for one or more content units and playback management information for the one or more content units, and selecting the playback management information. And a control unit controlling the playback unit based on the information to play back at least one of the one or more content units, wherein the first playback management information generates a menu listing the at least one content unit without executing an interactive application. Playback management information for a playback device that cannot interpret menu information used for the playback; and wherein the second playback management information is playback management information for a playback device that can interpret the menu information. to provide.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail. Note that the same reference numerals are used to refer to the same elements in each drawing, even if they are shown in different drawings. In addition, since the terms used below are named for convenience of description, it is obvious that other terms indicating the same function may be replaced with the other terms.

In the present invention, a recording medium is a medium on which data is recorded, for example, a "CD" "DVD", "Blu-ray Disc (BD)", "HD-DVD", "Near Field Recording (NFR) disk". And the like may be the recording medium of the present invention.

In addition, in the present invention, the term "presentation object" refers to a kind of execution unit. The expression object is executed by the optical recording and reproducing apparatus, and is provided to or connected to the optical recording and reproducing apparatus 10 to be described with reference to FIG. , Subtitles, etc. As a result, the user experiences various contents intended by the content provider by each expression object executed in the optical recording / reproducing apparatus 10. Each representation object is contained in a file, archive data, or the like, respectively, and recorded on a recording medium or downloaded to an optical recording / reproducing apparatus through various communication means.

In this regard, in the present invention, for convenience of explanation, the expression object is an A / V object (Audio / Video object) that does not largely support the interaction with the user, and interactive functions such as browsing and searching to the user (browse It is classified as an interactive object (also called an interactive application) that supports (also referred to as a) function. The A / V object may include video, audio, simple image, picture image, and the like, and the interactive object may include various button images, texts, and sound effects that are displayed on the screen for interactivity with the user. have. Various button images, texts, sound effects, etc. of the interactive object may be provided as a menu to a user.

In addition, in the present invention, "resource" refers to a file, archive data, etc. constituting an expression object. The optical recording and reproducing apparatus 10 of the present invention provides the expression object to the user by reproducing the resource.

In addition, in the present invention, "reprodution" refers to an operation of reading data stored in a disk, storage, and the like, and is used as a concept including execution of a stored computer program, output and duplication of stored data, and the like.

In addition, in the present invention, the term "Title" refers to a reproduction unit that forms an interface with a user as one complete content unit. Each title may be divided into one or more chapters, may be selected by a title menu, or may be indicated using a title number. Each title is linked with specific navigation data, and files constituting an expression object related to the title are reproduced according to a command or a program related to the navigation data.

In relation to the following, titles that support seamless multi-angle, multi-story, language credits, director cuts, and the like among titles in which high-definition video data recorded by MPEG compression method recorded in a disc are described as "Movie Title". ) " In addition, an interactive program (e.g., iHD, etc.) that enables high interactivity that supports update of a title in a disc or connectivity with a network among titles in which high-definition video data by MPEG compression is recorded. Titles containing data consisting of Java programs, etc.) are called "interactive titles".

In relation to this, it is noted that, in addition to the title, if the user is a playback unit that forms an interface through a menu or the like, the content unit can be used. For example, chapters, scenes, playback paths for each angle may be the content unit.

In addition, in the present invention, "content" means data provided by an author or a content provider of a recording medium as a content constituting a title. In the present invention, the content is largely defined by the standard content and the standard content in which the content defined in the existing recording medium is extended for high-resolution video, high-quality audio and some new functions. It can be divided into interactive content that extends the video and audio to be realized and realizes greater interactivity. Interactive titles, chapters, scenes, subtitles, etc., including the interactive object may be classified as interactive content, and titles, chapters, scenes, subtitles, etc., not included in the interactive object may be classified as standard content.

In this regard, a content provider of interactive content may control the playback of the interactive content using an interactive object. In addition, the content provider may control the screen configuration by the expression objects of the interactive content through the interactive object when the interactive content is displayed on the screen. The interactive object may be used to play the interactive content and to control a user operation. For example, the user can input a command such as fast playback or chapter playback to the optical recording / reproducing apparatus through a button or the like displayed on the screen by executing the interactive object.

In this regard, the recording medium of the present invention may store only one type of content, or both, of standard content and interactive content. However, the present invention relates to the reproduction of interactive content that provides high interactivity with a user. Therefore, in the present invention, the recording medium is a recording medium containing interactive content.

In addition, in the present invention, "storage" is a kind of storage means provided or connected to the optical recording / reproducing apparatus 10, and means an element that a user can arbitrarily store and utilize necessary information and data. Data with persistence can be stored in storage. Examples of storage currently used generally include a flash memory provided in the optical recording / reproducing apparatus 10, and another one connectable to and removable from the optical recording / reproducing apparatus 10 is a USB memory, an HDD memory or a memory. Cards. Storage is also used as a means for storing data associated with the recording medium, the data stored in the storage associated with the recording medium is generally data downloaded from the outside. In this regard, it is also possible for data to be read directly from the record carrier and stored in the storage.

1 is shown to help conceptual understanding of the present invention, and is shown to show an example of the integrated use between the optical recording / reproducing apparatus 10 and a peripheral device.

In this regard, the "optical recording and reproducing apparatus 10" of the present invention is a device capable of recording or reproducing optical discs of various standards, and according to design, specific specifications (for example, CD, BD, HD-DVD, etc.) Only optical discs can be recorded and reproduced. It is also possible to replay without recording. It is already well known that the "optical recording and reproducing apparatus 10" of the present invention can be a "drive" that can be embedded in a computer or the like.

In addition to the function of recording and reproducing the optical disc 30, the optical recording and reproducing apparatus 10 according to the present invention receives an external input signal and processes the signal, and then outputs or connects to the optical recording and reproducing apparatus 10. 20) (eg, a screen, a speaker, etc.) to the user. In this case, there is no particular limitation on the external signal that can be input, but digital broadcasting and the Internet will be representative external input signals. In particular, in the case of the Internet, a medium that is easily accessible to everyone at present. As a result, specific data on the Internet can be downloaded and utilized through the optical recording and reproducing apparatus 10.

2 conceptually illustrates the relationship between the recording medium of the present invention and an apparatus for recording and reproducing the recording medium.

With the development of high density recording media, networking, and communication technologies, it has become possible to provide data whose interactivity with the user significantly exceeds the existing recording media. However, in order to reproduce the data providing high interactivity with the user, it is required that the optical recording / reproducing apparatus 10 be provided with a high speed processor, a large memory and a complex program. .

For example, in order to reproduce interactive content using an iHD program, the performance of the central processing unit of the optical recording / reproducing apparatus is required to be 1 GHz or more, and a high speed graphics processor is required. In addition, more than 512MB of DRAM is required to implement the functions by the interactive content, and more than 256MB of flash memory is required to implement the program memory and the storage function. In addition, the optical recording and reproducing apparatus needs to implement a complex program having a code size of 64MB in order to reproduce the interactive content. Hereinafter, a part of the optical recording and reproducing apparatus 10 that processes data related to the interactive function of the interactive content will be described as an interactive module.

In relation to this, the optical recording and reproducing apparatus 10 has different performances according to a processor, a memory, a program, and the like provided in the optical recording and reproducing apparatus 10. For example, low-cost, low-power products such as portable devices (eg, cell phones, PDAs, etc.) typically have slower processors, lower memory, and simpler programs than PCs. As a result, low cost / low power products such as portable devices have difficulty in applying interactive modules requiring high speed processors, high capacity memory, and complex programs. Therefore, depending on the performance of the optical recording / reproducing apparatus, it may occur that interactive content cannot be reproduced.

However, the user may wish to execute even basic expression objects (eg, audio, video objects, etc.) even if the interactive function is not implemented. Or, among the interactive functions of the interactive content, only some functions that can be implemented by a low speed processor, a low memory, and a simple program may be desired to be executed.

In this regard, the present invention will be described below by exemplifying a case in which the interactive content is recorded or reproduced using data other than data related to the interactive function for convenience of description. However, according to the performance of the optical recording and reproducing apparatus, the present invention may be applied in the same manner even when only some of the interactive functions are implemented, not the entire interactive functions. In addition, hereinafter, a playback apparatus having no interactive module capable of processing interactive objects is referred to as a level A recording and playback apparatus 10a, and a playback apparatus having the interactive module is referred to as a level B recording and playback apparatus 10b. . As the performance of the optical recording and reproducing apparatus develops, a new level of recording and reproducing apparatus can of course be defined.

When the optical disc 30 on which the interactive content is recorded is loaded into the level B recording and reproducing apparatus 10b, an interactive module provided in the level B recording and reproducing apparatus 10b processes the interactive object to process the interactive content. Can play. On the other hand, when the optical disc 30 is loaded into the level A recording and reproducing apparatus 10a, the level A recording and reproducing apparatus 10a cannot process the interactive object and thus cannot reproduce the entire interactive content. Cases may occur. In this regard, the interactive object will be described in more detail with reference to FIG. 5.

An object of the present invention is to reproduce A / V data associated with an interactive function even in the level A recording and reproducing apparatus 10a. To this end, the present invention provides an optical recording and reproducing apparatus that reproduces or records the interactive content by using data other than data related to the interactive function or implements only some interactive functions.

In this regard, it is common for new standards to be established in accordance with the development of new recording media, devices, contents, and the like. For example, in accordance with the development of the recording medium of the present invention in which interactive content is recorded, standards relating to reproduction or recording of the interactive content are established. Then, at the time of enactment of the standard, it is common to develop a recording and reproducing apparatus suitable for this. For example, if a standard relating to the complete recording and reproduction of the interactive content is established, the optical recording and reproducing apparatus must be developed in accordance with the established standard. However, due to production costs, production difficulties, etc., there may be cases in which the optical recording / reproducing apparatus does not include an interactive module, such as the level A recording / reproducing apparatus 10a, in which case the level A recording / reproducing apparatus 10a Can not play interactive content according to the existing standard.

Therefore, in order for the Level A recording and reproducing apparatus 10a to reproduce the interactive content using only data or some interactive functions other than the data related to the interactive function according to the present invention, a new standard for recording or reproducing the interactive content is newly established. Or extend existing specifications. In addition, instead of the menu provided by the interactive object, the specification needs to be extended so that the optical recording / reproducing apparatus can provide the user with a menu in a form intended by the content provider without executing the interactive object. In this case, the recording and reproducing apparatus (hereinafter referred to as the second recording and reproducing apparatus) produced according to the newly established or expanded standard is produced to reproduce the interactive content according to the newly established or extended standard. This is called forward compatibility. In addition, it is preferable that the interactive content according to the newly enacted or extended standard can be reproduced in a recording / reproducing apparatus (hereinafter, referred to as a first recording / reproducing apparatus) produced according to an existing standard. This is called backward compatibility.

2, the interactive content is recorded on a recording medium and provided to an optical recording / reproducing apparatus. However, the present invention is also provided when the interactive content is provided to the optical recording / reproducing apparatus from a storage or a server. It can be applied as well. However, hereinafter, for the convenience of description, the case where the interactive content is recorded on the recording medium will be described as an example.

FIG. 3 shows an embodiment of the overall configuration of the optical recording / reproducing apparatus 10, showing a level B recording apparatus 10b including an interactive module.

First, the pickup 11 for reproducing the reproduction management information including the original data and the reproduction management file information recorded on the recording medium, the servo 14 for controlling the operation of the pickup 11, and the reproduction received from the pickup 11; A signal processor 13 for restoring a signal to a desired signal value, or modulating and transmitting a signal to be recorded into a signal recorded on a recording medium, an interactive module 15 for processing an interactive object, and the pickup 11 The microcomputer 16 which controls the operations of the signal processor 13, the servo 14, and the interactive module 15 is basically configured.

In relation to this, the pickup 11, the servo 14, the signal processing unit 13, the interactive module 15, and the microcomputer 16 are also referred to as recording / reproducing units, and the recording / reproducing unit can be configured as a single product. In view of the reproduction, the recording / reproducing section reads data from the recording medium 30, the interactive module 15, or the storage 19 under the control of the microcomputer and / or the control unit 12 and provides it to the AV decoder 17b. . In other words, the recording and reproducing section serves as a reproducing section for reading data from the viewpoint of reproduction. In terms of recording, the recording and reproducing section is a recording section which receives the signal encoded by the AV encoder 18 and records the clip AV stream and the reproduction management information for the clip AV stream on the optical disc 30.

In addition, the controller 12 is responsible for the control of the entire component in the optical recording and playback device 10, and in particular with respect to the playback of the interactive content, forms an interface (interface) with the user, and included in the interactive content The interactive object controls the reproduction of the presentation objects in the interactive content. In addition, by executing the interactive object, data existing outside the recording medium is downloaded and stored in the storage 19.

In this regard, the controller 12 and the microcomputer 16 may be provided separately to operate. In addition, the functions of the controller 12 and the microcomputer 16 may be integrated to operate as one control unit. Hereinafter, for convenience of description, the controller 12 and / or the microcomputer 16 will be collectively described as a controller. The controller may be composed of a program (software) and / or hardware provided in the optical recording / reproducing apparatus 10.

The AV decoder 17 finally decodes the data provided from the optical disc 30, the storage 19, and the server to the user under control of the controller, and the AV decoder 17 according to the type of data. It may be composed of a plurality of decoders. For example, the AV decoder 17 may include a video decoder for decoding a video object, an audio decoder for decoding an audio object, a subtitle decoder for decoding a subtitle, an interactive decoder for decoding an interactive object, and the like. It may include.

In addition, the AV encoder 18 converts an input signal into a signal of a specific format, for example, an MPEG-2 (MPEG2) transport stream, under the control of a controller, in order to perform a function of recording a signal on an optical disk. It is provided to (13).

In addition, as described with reference to FIG. 2, the interactive module 15 is a space for processing various types of information related to the interactive object, and includes a memory (not shown) or a processor (not shown) provided or connected to the optical recording / reproducing apparatus 10. It is constructed using city. It is also possible that the interactive module 15 is configured as part of the controller. In relation to this, since the level A recording and reproducing apparatus 10a does not include the interactive module 15, there is a problem that the information related to the interactive object cannot be processed.

4 illustrates a recording structure of data recorded on a recording medium of the present invention, and the recording medium of the present invention may store only one or both types of content of standard content and interactive content.

Specifically, the recording medium of the present invention has a logical structure of volume space, title set information, and interactive content. The volume structure includes a volume and file structure allocated for system information for managing the entire recording medium, and a disc data zone allocated for data in a high density recording medium format. It also consists of Disc others zones for video applications on different record carriers. The disc data zone includes a title set information area in which all reproduction management information of titles recorded on the recording medium is recorded, and an interactive content area in which actual title data is recorded.

In relation to this, the disc data zone may be divided into a stream area in which stream data is recorded and a reproduction management area in which reproduction management information of the stream is recorded. As a result, the recording medium recording structure shown in FIG. 4 is just one embodiment, and it will be apparent that the volume structure of the recording medium may be used differently according to the specifications of the respective recording media.

FIG. 5 is a diagram to help conceptual understanding of title reproduction according to the present invention, and illustrates a relationship between title reproduction management information and expression objects constituting the title.

Titles of the present invention can be largely divided into titles composed only of interactive objects, titles composed only of A / V objects such as video and / or audio objects, titles composed of interactive objects, and A / V objects. Hereinafter, a title composed only of A / V objects is called a movie title, and a title including an interactive object is called an interactive title. A plurality of titles may be recorded on the recording medium of the present invention, and the plurality of titles may be all movie titles, all interactive titles, some movie titles, and some interactive titles.

A movie title and an interactive title will be described in detail with reference to FIG. 5, which illustrates a case where a movie title and an interactive title are mixed and recorded. Title 1 (Title 1) is composed of one chapter (Chapter 1; Ch 1), which is represented by the execution of the interactive object. Title 2 is divided into three chapters, and Chapter 1 (Ch 1) is divided into Primary Audio / Video Object (PA / V) and Secondary Audio / Video Object (Secondary Audio / Video Object; Sub-A / V), which is represented by the execution of the interactive object, and Chapter 2 (Chapter 2) is represented by the execution of the main audio / video object and the interactive object, and Chapter 3 (Chapter 3). Ch 3) is represented as a Substitute Audio / Video Object (Substitute-A / V) that replaces the Main Audio / Video Object and the Audio / Video Stream in the Main Audio / Video Object. Title 3 is divided into two chapters, and chapter 1 (Ch 1) is the main audio / video object (PA / V), the sub audio / video object (Sub-A / V), and the interactive subtitle object ( Subtitle) and the execution of the interactive object (Interactive), and chapter 2 (Ch 2) is represented by the execution of the main audio / video object (PA / V) and the interactive object (Interactive). Title 4 consists of one chapter Ch 1, which is represented by the execution of the main audio / video object P-A / V. Title 1 and Title 3 correspond to interactive titles, and Title 2 and Title 4 correspond to movie titles.

In relation to this, the main audio / video object in the present invention refers to one or more time maps and main audio streams and / or main video used to convert the presentation time of the presentation object into the address of the presentation unit in each presentation object. An expression object containing a stream. The main audio / video object may comprise sub audio and / or video played with the main audio and / or video stream. The sub audio and / or video stream may be provided as a separate sub audio / video object without being included in the main audio / video object.

Also, in the present invention, a sub audio / video object is a representation object including one or more timemaps and an audio and / or video stream to be played along with the main audio and / or video stream in the main audio / video object.

In the present invention, the alternative audio / video object is also a representation object including one or more timemaps and audio and / or video streams that replace the main audio and / or video streams in the main audio / video object.

In this regard, the interactive object of the present invention is an expression object including an interactive function to be implemented during the playback of a title, and the interactive object includes an initialization information file for implementing the interactive function. The initialization information file includes a representation information file representing a style, a timing, a layout, and the like in which the interactive object is reproduced on a screen, and a user input event or optical recording of a reproduction sequence, graphics, etc. of the representation object on the screen. It consists of a control file used for controlling by a playback event or the like of the playback apparatus 10. Hereinafter, the initialization information file will be referred to as a manifest file, the expression information file as a markup file, and the control file as a script file. The manifest file, markup file, and script file are described by a specific markup language (e.g., 'extensible mark up language') that can be decoded by the optical recording / reproducing apparatus 10. and recorded on a recording medium or provided to the optical recording / reproducing apparatus 10 from an external server.

For example, the interactive object of the present invention is an interactive navigation such as a manifest file, a markup file (s) that includes content / style / timing / layout information, and a script file (s). Element, and interactive playback elements such as image file (s), effect audio file (s), font file (s), and the like. The interactive navigation and interactive playback elements can be organized into interactive objects by one manifest file and can be located in one or more resource files. The resource file may be stored on a record carrier, located on storage 19 or an external server, or multiplexed onto a video / audio object on the record carrier.

In this regard, in the present invention, navigation elements such as markup files, script files, etc., which constitute an interactive object, various image files (image file (s)), effect audio files (s), font files ( Interactive playback elements such as font file (s)) are collectively called interactive data.

In addition, the interactive object may include, as a subset, an interactive subtitle object synchronized with video. The interactive subtitle object may include a markup file, a font file, and an image file for a subtitle including a manifest file, content, style, timing, and layout information for the subtitle. The interactive subtitle may replace a subpicture object displayed on the subpicture plane.

In relation to this, in the present invention, the term "plane" refers to a conceptual model for explaining an overlaying process of expression objects displayed on a screen. The plane model makes it possible to independently control a main video object, a sub video object, a sub picture or an interactive subtitle object, and an interactive object.

Referring back to FIG. 5, the playback order of each chapter constituting the title 1, 2, 3 or 4 and the playback information between the respective expression objects are provided by a playlist. The playlist provides reproduction information between the playback objects by mapping the presentation objects onto a title timeline allocated to each title. The playlist may be recorded on the recording medium in the form of a playlist file or provided to the optical recording / playback apparatus 10 from an external server. In this regard, the playlist file can be described by a specific markup language (e.g., 'extensible mark up language') which can be decoded by the optical record / playback apparatus 10. have. The titles 1 to 4 may be referred to as one title set managed by the playlist file.

In relation to FIG. 5, one playlist is provided for four titles as an example, but one playlist may be provided for each title.

Specifically, taking the title 1 as an example, the optical recording / reproducing apparatus 10 uses the location information (e.g., URI) described in the playlist to represent the interactive object constituting the title 1. Read the manifest file to start the execution of the initial markup file indicated in the manifest file.

As another example, in order to reproduce the chapter 1 of the title 2, the optical recording / reproducing apparatus 10 uses the position information described in the playlist, and the manifest file and the main file of the interactive object constituting the chapter 1 Read the timemap included in the sub audio / video object, execute the initial markup file indicated in the manifest file, and access and play the main and sub audio / video streams referred to by the time map.

As another example, in order to reproduce chapter 1 of the title 3, the optical recording / reproducing apparatus uses the position information described in the playlist to generate a manifest file of an interactive object constituting the chapter 1, an interactive subtitle object. Read the time map included in the manifest file for the subtitle and the main and sub audio / video objects, execute the initial markup files indicated in the manifest file and the manifest file for the subtitle, Access and play sub audio / video streams.

As another example, in order to reproduce chapter 1 of the title 4, the optical recording / reproducing apparatus 10 is included in the main audio / video object constituting the chapter 1 by using the position information described in the playlist. Read the timemap and access and play the main audio and / or video stream indicated by the timemap.

Referring to FIG. 2 described above, the level B recording / playback apparatus 10b includes a recording medium recording only an interactive title (hereinafter, referred to as a first type recording medium) and a recording medium recording only a movie title (hereinafter referred to as a second type recording medium). In addition, the recording medium (hereinafter, the third type recording medium) in which both the interactive title and the movie title are recorded can be played back. In other words, all of Titles 1 to 4 can be played back. However, the level A recording / reproducing apparatus 10a can reproduce the second type recording medium, but since the interactive module for processing data related to the interactive function of the interactive title is not provided, the level A recording and reproducing apparatus 10a can reproduce the first type and the third type recording medium. If not, it can happen. In the present invention, the optical recording / reproducing apparatus enables recording or reproducing of titles using A / V objects such as audio and video, regardless of the type of title (s) recorded on the recording medium.

FIG. 6 shows an example of reproduction of interactive content by the level B recording / playback apparatus 10b. Among the expression objects, the expression objects provided to the user through the screen are represented in respective planes, and their sizes are shown. And the position is adjusted to be combined into one image, and output on the screen.

Referring to FIG. 6, a sub video stream of sub audio / video objects is displayed on the sub video plane 110, and a sub video stream of main audio / video objects is displayed on the main video plane 120, and the sub picture data is displayed as sub picture data. The configured subtitles are displayed in the subpicture plane 130 and the interactive objects are displayed in the interactive graphics plane 140. The controller adjusts the size and / or position of the sub video plane, the main video plane 120, the sub picture plane 130, and the interactive graphic plane 140, and outputs the image to the screen in the form of one image 150. do.

In relation to the main video object, the sub video object and the subtitle object, the interactive object may be output as a single image 150 together with the interactive object. Information for specifying a size and position in the interactive plane 140, that is, information for specifying a layout is included.

Interactive objects provide graphical image (s) on the graphics and subpicture planes that overlie the main video and sub video planes, while providing interaction between the user and playback of A / V objects. Graphic images and text images included in the interactive object may also display features of titles, chapters, A / V objects, and the like. Therefore, the user can set the selection and end of the title to be played, the playback order between the titles, and the like by using the interactive object displayed on the screen, and can check the characteristics or attributes of the title, chapter or A / V object. have.

In this regard, the level A recording / playback apparatus 10a does not have an interactive module and thus cannot execute the interactive object. The present invention enables the interactive content to be played back, except for the interactive object, so that an A / V object of the interactive content can be provided to a user without a high speed processor, a large memory, and a complex program.

FIG. 7 illustrates an example of reproduction of interactive content by the optical recording / reproducing apparatus of the present invention. Among the expression objects described in FIG. 6, the interactive object is not executed and is not displayed on the interactive graphic plane 140. In the case of the level A recording and reproducing apparatus 10a, the interactive graphic plane 140 may not be provided.

In addition, even if the resources used by the interactive object are reproduced so that the interactive object is displayed on the interactive graphic plane 140, the level A recording / reproducing apparatus 10a includes an interactive module for processing search information included in the interactive object. 15) There is no. Accordingly, the level A recording and reproducing apparatus 10a cannot combine the sub video, main video, and subtitle objects with the interactive graphic plane 140.

The optical recording / reproducing apparatus of the present invention is a representation displayed on the sub video plane 110, the main video plane 120 and the sub picture plane 130 without executing the interactive object in order to provide an A / V object to the user. Only objects are output as one image 160 on the screen. In some cases, only the main video may be played without the sub video, or the sub video may not be output on the screen even if the main video is played.

In relation to this, since the level A recording and reproducing apparatus 10a cannot execute the interactive object, there is a problem in that the menu provided through the interactive object cannot be reproduced. As a result, a user may not be able to select a menu, and thus a title in the recording medium may not be reproduced. Accordingly, the present invention allows the optical recording / reproducing apparatus to create a menu using the A / V object, and provide the generated menu to the user. The optical recording / reproducing apparatus may output the generated menu on a screen in the form of a graphical user interface (GUI) so that a user can select content to be reproduced. Hereinafter, a menu created by the optical recording dispute apparatus for reproducing an expression object except for an interactive object will be described as an apparatus menu. Such menus generated by the optical recording and reproducing apparatus are also called player menus, mimic menus, simple menus, and the like.

In this regard, the present invention sets the information to be used for the generation of the device menu to data above the interactive object so that the optical recording / reproducing apparatus can generate the device menu without the interactive object. For example, a title name, a representative image of a title, a description of a title, an attribute of data constituting a title, and a level of a playback device capable of playing a title can be set in the playlist. The optical recording and reproducing apparatus of the present invention can generate the device menu as intended by the content provider with reference to the playlist. Further, according to the present invention, the user can experience the same device menu even if the optical recording / reproducing apparatus is different, so that the content can be easily played back.

In addition, in the case of interactive content, a playback order, a playback mode, and the like between titles in a recording medium may be defined by an interactive function included in the interactive object. However, since the level A recording and reproducing apparatus 10a cannot execute the interactive object, there is a problem that the level A recording and reproducing apparatus 10a does not know the reproduction order of the title (s) in the recording medium. Accordingly, the present invention sets the playback order, playback mode, etc. of the titles to be reproduced in the data above the interactive object so that the optical recording / reproducing apparatus can know the playback order, playback mode, etc. between the titles without the interactive objects. For example, if the playlist describes the playback order or playback mode of the titles managed by the playlist, the optical recording / reproducing apparatus can play back the titles in the playback order set in the playlist. As a result, the user can experience the same interactive content with other optical recording / reproducing apparatuses for the same interactive content.

Hereinafter, the present invention will be described in detail by referring to various types of information used for reproducing interactive content without execution of the interactive object by the optical recording and reproducing apparatus of the present invention as information for A / V reproduction. In the present invention, the A / V playback information is also used as menu information used to generate the device menu.

8 to 13 illustrate embodiments of menus generated by the optical recording and reproducing apparatus of the present invention using information for A / V reproduction. Hereinafter, the recording medium includes four titles (Titles 1 to 4), title1 is an interactive object, title2 is an A / V object and a interactive object, title3 is an interactive object, and the interactive object. An example is a case where a title composed of A / V objects that cannot be played without a title, and Title 4 is a title composed of A / V objects including only audio data.

First, the A / V reproduction information of the present invention may include information (hereinafter referred to as content attribute information) indicating the attribute of the content constituting the title. In the present invention, the content property information includes information indicating whether a title includes an interactive object or not, and information indicating whether audio and / or video data in the title can be reproduced without executing the interactive object (hereinafter, A / V). Data type (AV DataType) information). The content provider sets the A / V data type for each title so that the optical recording / reproducing apparatus can know the title that can be reproduced without executing the interactive object.

In relation to this, in the case of a title composed of black video that does not contain substantial AV data, it is possible for the content provider to set the A / V data type in the content attribute information of the title as a title that cannot be played without executing the interactive object. .

The optical recording and reproducing apparatus of the present invention can check the information for A / V reproduction to know the property of the content constituting the title. For example, the content provider may display an A / V data type of Title 1 as a title consisting only of interactive objects in the playlist, and include an AV object that may play the A / V data type of Title 2 without an interactive object. A / V data type of Title 3 can be displayed as a title including an AV object that cannot be played without an interactive object, and A / V data type of Title 4 can be displayed as a title composed without an interactive object. have. The optical recording and reproducing apparatus of the present invention can generate and provide a device menu to a user based on the A / V data type displayed in the playlist. In addition, the optical recording and reproducing apparatus may put information on a title in the device menu based on the playlist.

In relation to this, in the case of Title1 and Title3, since they cannot be reproduced without the execution of the interactive object, the actual audio and / or video data desired by the user is not output even if the Title1 or Title3 is reproduced. The optical recording and reproducing apparatus of the present invention, on the basis of the A / V reproduction information, enables the user to efficiently determine the title to be reproduced, so that the information on the title to which the actual audio and / or video data is not output is added to the device menu. Can be included.

In this regard, the information for A / V reproduction of the present invention may include a reproduction order of titles to be reproduced. The optical recording and reproducing apparatus can check the reproduction order from the reproduction management information for the titles and list them in the device menu according to the reproduction order. For example, if the content provider has set the playback order of the titles 1 to 4 to be played in order from the titles 1 to 4 in the playlist, the optical recording / reproducing apparatus plays back the titles 1 to 4 without executing an interactive object. You can see the order. It is a matter of course that a device menu listing titles may be generated using the reproduction order.

8 to 10 illustrate embodiments of displaying titles in a recording medium in a device menu when the recording medium includes titles that cannot be reproduced without executing an interactive object.

Referring to Fig. 8, the optical recording and reproducing apparatus of the present invention lists the titles 1 and 3 together with other titles in the title list on the device menu together without the execution of the interactive object, and the title 1 or the title list in the title list. It is possible to indicate that the title 1 or 3 cannot be reproduced, such as "There are no reproducible A / V data" near 3 ("There are no reproducible A / V data"). The indication “There are no reproducible A / V data” may be displayed on the screen when the user selects the title 1 or 3.

In this regard, even for an auxiliary title such as Title 4, information ("Audio Title") consisting of A / V objects including only audio data may be included in the device menu to facilitate user selection. have.

Referring to Fig. 9, the optical recording and reproducing apparatus of the present invention lists the titles 1 and 3 together with other titles on the title list on the device menu, and displays the titles 1 and 3 separately from the other titles. For example, titles 2 and 4, which can be played without executing an interactive object, may be displayed in the title list in black bold, and titles 1 and 3 may be displayed in gray. When the user selects playback of the title 1 or 3, the optical recording / reproducing apparatus outputs a black screen without any display, or displays the "prohibited display" of the title 1 or 3 on the screen and plays the title. You can't. It is also possible that the user cannot select the titles 2 and 4 at all.

In this regard, the optical recording / reproducing apparatus can determine that the title 4 composed only of the audio data is an audio title based on the A / V data type. If the optical recording and reproducing apparatus does not reproduce the audio title, the optical recording and reproducing apparatus lists the title 4 with other titles on the title list on the device menu and displays the title 4 separately from the other titles (not shown). If the title 4 is selected, a black screen or a "prohibition of indication" may be displayed on the screen and the title 4 may not be played back.

Referring to Fig. 10, the optical recording and reproducing apparatus of the present invention does not list the titles 1 and 3 which cannot be reproduced on the title list on the device menu. That is, only titles 2 and 4 including playable A / V objects will be listed in the title list.

In relation to this, when the optical recording and reproducing apparatus is a device which does not reproduce a title composed only of audio data, the optical recording and reproducing apparatus does not list the title 4 in the title list on the device menu so that the user cannot select the title 4. It may be (not shown).

In addition, the information for A / V reproduction of the present invention may include information indicating the level of the optical recording / reproducing apparatus in which content can be reproduced. The content provider can set the level of the optical recording / reproducing apparatus capable of playing the title in the playlist while constructing the title. The optical recording and reproducing apparatus can compare the level of the title and the level of the optical recording and reproducing apparatus to determine whether the title can be reproduced. By using the level information for each title according to the present invention, it is advantageous that the optical recording and reproducing apparatus easily creates and manages a device menu.

For example, the content provider may set the level of the titles 2 and 4, which can be played without the interactive module, to level A, and set the level of the titles 1 and 3, which can be played without the interactive module, to the level B. Level A indicates that it can be reproduced in an optical recording / reproducing apparatus having a level above level A, and level B indicates that it can be reproduced in an optical recording / reproducing apparatus having a level of level B or higher. Thus, the level B playback apparatus 10b described in FIG. 2 can play all of the titles 1 to 4, but the level A playback apparatus 10a described in FIG. 2 can play only the titles 1 and 3. FIG.

In relation to this, titles that cannot be reproduced by the optical recording / reproducing apparatus may be displayed on the device menu generated by the optical recording medium in the same manner as the embodiments described with reference to FIGS. 8 to 10.

11 illustrates an embodiment of a device menu created based on information describing content according to the present invention.

The interactive object of the present invention may include information such as a chapter, a title, and the like, such as an image or text indicating the content or component of the content. When the interactive object is executed, information describing chapters, titles, etc. is provided to the user, so that the user can use it to select content to play. As a result, when the interactive object is not executed, information to be used to select content to be played may not be provided to the user. Therefore, the present invention sets the content description information describing the content as the reproduction management information, so that the optical recording and reproducing apparatus can generate a device menu including the description of the content.

For example, suppose a content provider records audio / video data and a title having a playback time of "2:00:42" on a recording medium. The content provider may call the title of the title "Lake House" and record the title as reproduction management information of the title. The representative image of the title may be recorded on the recording medium, and a path and file name indicating the position of the representative image may be recorded as the reproduction management information. The reproduction management information may include information for describing the title, such as a runtime of the title. For example, various pieces of information, such as information indicating whether a title is a main title or a supplementary title, aspect ratio of the title, supported audio, genre, detailed description, etc., may be used. It can be used as.

Referring to FIG. 11, the optical recording / reproducing apparatus may generate a device menu based on A / V reproduction information including the content description information. For example, when a device menu listing four titles in a recording medium is displayed on the screen 20, the displayed device menu includes a representative image of each title, a playback time, whether it is a main title, an A / V data type, and the like. Etc. may be displayed. For example, in the case of the lake house title, the optical recording and reproducing apparatus may confirm that the title name to be displayed in the reproduction management information of the lake house title is "lake house" and display the title name in the device menu. have. In addition, the position of the representative image may be confirmed from the path and file name displayed in the reproduction management information, and the representative image may be reproduced and displayed on the device menu. It is also possible that the playing time "2:00:42" of the lake house title is displayed in the device menu. In addition, the A / V data type of the lake house title may be checked and displayed on the screen 20 by displaying it as a symbol in the device menu. In this regard, the representative image may exist as a separate file from the resource of the interactive object, but may be reused by designating the path and file name of the resource of the interactive object.

In addition, when the user requests a detailed description of a specific title, the optical recording / reproducing apparatus of the present invention may display the detailed description of the specific title on the screen 20 based on the content description information. For example, for a title whose title is "Winter Season", when the user requests detailed description from the optical recording / reproducing apparatus, the optical recording / reproducing apparatus is based on the content description information. Detailed information about may be displayed on the screen 20.

The recording medium of the present invention may include a title in which the main video and the sub video are played together so that the sub video is displayed in the main video. For example, during the playback of a movie or documentary, it is possible to provide the user with a director's comment or episode about the shooting process. The video showing the comment or episode corresponds to the sub video. This is also called the "PiP (Picture in Picture)" function. The optical recording / reproducing apparatus can identify which title is a PiP title including sub video through the above-described A / V data type. For example, suppose that a content provider records a title including a main video and an auxiliary video, having a playing time of "0:15:00" and a title of "Rainy Season" on a recording medium. Referring to FIG. 11, the optical recording and reproducing apparatus has a title name of "Rainey season", a playing time of "0:15:00", and a title of PiP title. It can be confirmed and displayed on the device menu and output on the screen 20. In addition, it is also possible to check the position of the representative image of the Rainy season title from the path and file name displayed in the reproduction management information, to reproduce the representative image and display it on the device menu for output.

In this regard, the interactive object has position and size information of the sub video for the implementation of the PiP function. When the interactive object is executed, as described with reference to FIG. 6, each plane is adjusted in size and position to be merged. If the interactive object is not executed, information on the position and size of the sub video may not be provided, and an error may occur when the optical recording / reproducing apparatus implements the PiP function. Therefore, the present invention allows the information on the position and size of the sub video of the PiP title to be included in the reproduction management information of the PiP title. The position information of the sub video may be given as a horizontal position and a vertical position, for example, "SubVideoPositionX" and "SubVideoPositionY" in which the sub video is displayed from a specific reference point of the main video plane 120. The size information of the sub video may be given as a horizontal size and a vertical size of the sub video, for example, "SubVideoSizeX" and "SubVideoSizeY". Alternatively, the ratio of the sub video size to the size of the main video may be given, for example, "× 1, x1 / 2, x1 / 4, x1.5", or the like.

The recording medium of the present invention may also include an audio title composed of audio data. The optical recording and reproducing apparatus of the present invention can identify which title is an audio title through the above-described A / V data type. For example, let's say a content provider is composed of audio data, and records a title having a playback time of "0:05:32" and a title of "Autumn Season" on a recording medium. Referring to Fig. 11, the optical recording / reproducing apparatus indicates that the title name is "Autumn season" from the reproduction management information for the autumn season title, that the playback time is "0:05:32", and that the title is an audio title. It can be confirmed and displayed on the device menu and output on the screen 20. In addition, it is also possible to confirm the position of the representative image of the autumn season title from the path and file name displayed in the reproduction management information, and to reproduce the representative image and display it on the device menu for output.

Relatedly, referring to FIG. 12, which illustrates the playback relationship between an audio title and a still image, a content provider may provide one or more still images for the autumn season title. According to the present invention, the content provider may store the path and file name of the still image file in the reproduction management information of the autumn season title so that the still image may be displayed on the screen 20 without executing the interactive object. The optical recording and reproducing apparatus may provide the user with the still image along with the audio during the autumn season title reproduction section based on the reproduction management information.

The title of the present invention may be a multi-angle title having a different presentation path for each angle, or may include a plurality of subtitles or audio data to be reproduced together with the title. However, when the interactive object is not executed, detailed information on the angle, audio, subtitle, etc. of the title to be reproduced is not reproduced by the user. Accordingly, the present invention includes information on elements that allow a user to have a different experience with respect to one title, such as angle, audio, subtitle, and the like, into information for A / V playback by including in the reproduction management information of the title. Use it. The subtitle will be described below by way of example.

Referring to FIG. 13, a content provider records subtitles for the deaf and hard-of-hearing (SDH), sub video, and Korean subtitles for one title. Recording on a medium, and subtitle detailed information about the subtitles on the recording medium as reproduction management information of the title. The optical recording and reproducing apparatus may identify the reproduction management information, generate a device menu including the subtitle detailed information, and display the same on the screen 20. The user can select a subtitle to be played through the subtitle detail information included in the device menu.

14 to 19 show an embodiment of the reproduction management information including information used by the optical recording and reproducing apparatus of the present invention to reproduce the interactive content without executing the interactive object. Hereinafter, the reproduction management information will be referred to as a playlist, and a case in which the playlist manages reproduction of one or more titles will be described as an example.

Referring to FIG. 14, a playlist may include titleset information as reproduction management information for all titles. The titleset information may include title information, first played title information, information of application (s) related to execution of the playlist, and the like. The title information, which is reproduction management information for each title, defines the reproduction order of the chapter (s) constituting the title, the type of expression objects included in the title, their reproduction relations, and the like. The present invention places the above-mentioned A / V reproduction information in the title information so that the A / V object constituting the title can be reproduced without executing the interactive object.

In more detail, the title information is an A / V data type indicating the type of data constituting the title, the association of the data with the interactive object, whether the data can be reproduced without executing the interactive object, and the like. Information 210. In this regard, the A / V data type information 210 may be defined for each chapter included in the title.

In addition, the title information may include representative image (Thumbnail) information 220 for designating a representative image of the title. The representative image information 220 will indicate a location where actual data of the representative image is stored. The actual data may be a file storing a representative image used by the interactive object or a file existing separately for A / V playback.

In addition, the title information may include text description information 230 describing the title as text. The text description information 230 may include various description information about the title, such as a play time, a summary of the title, a director, a producer, an actor, and supported audio. Referring to FIG. 11, for example, when the title 1 is a winter season title, the optical recording / reproducing apparatus uses the information provided by the content provider to the text description information 230 based on the text description information 230. The device menu may be included or a detailed description to be provided to the user may be displayed on the screen 20.

In addition, the title information may include device condition ("ApparatusCondition") information 240 that defines a condition of a recording or reproducing apparatus capable of playing the title. The device condition information 240 may include, for example, level ("Level") information defining a level of an optical recording / reproducing apparatus capable of playing the title. 2 and 5, when Title1 is composed of only the interactive object, the content provider may set the level in the device condition information 240 of Title1 information for Title1 to "B". An optical recording and reproducing apparatus having a level "B" or higher may reproduce the title1, but a reproducing apparatus having a level below the level "B", for example, the level A recording and reproducing apparatus 10a may select the title1. Will not play.

In addition, the title information may include still image ("StillImage") information 250 to be reproduced together with the audio title when the title is an audio title. The still image information 250 may be a path, a file name, etc. of a file storing the still image.

In addition, the title information may include next title (“NextTitle”) information 260 indicating a title to be played next to the title. The next title information 260 may be defined for each level of the optical recording and reproducing apparatus. For example, a content provider may include a title1 composed of interactive objects on a recording medium, a title2 composed of A / V objects and interactive objects, a title3 composed of interactive objects and A / V objects that cannot be played without the interactive objects, and Assume that you record title 4 consisting of A / V objects containing only audio data. The content provider sets the title 4 to be played next by the recording / playback apparatus 10a having level A (" Level A ") in the next title information 260 in the title information for Title 2, and level B (" The recording / playback apparatus 10b having Level B ") can set the title to be reproduced next to Title3. Therefore, the optical recording and reproducing apparatus can know the reproduction order of the titles that match its level by using the next title information 260.

In this regard, a title reproduction order ("TitleReproductionMode") or title reproduction mode ("TitleReproductionMode") information (not shown) defining a reproduction order or reproduction mode of titles managed by the playlist may be included in the playlist. The title reproduction order ("TitleReproductionMode") or title reproduction mode ("TitleReproductionMode") information may be defined for each level of the optical recording and reproducing apparatus. Therefore, the optical recording and reproducing apparatus can know the reproduction order or reproduction mode between the titles managed by the playlist without executing the interactive object by analyzing the playlist. In relation to this, when one playlist is defined for one title, information on managing the playlist will include the reproduction order and the reproduction mode information of the titles.

FIG. 15 illustrates a case where A / V reproduction information according to the present invention is included as title content ("TitleContent") information in titleset ("TitleSet") information which is higher information of title information. A case in which A / V reproduction information according to the present invention is included as title set property ("TitleSetProperty") information separately from title set information is shown.

14 to 15 define one or more new management information fields representing A / V reproduction information of the present invention, and include the new management information fields in the existing management information. The new version of the optical recording and reproducing apparatus manufactured according to the previous standard, which defines the new management information field, is called a first recording and reproducing apparatus, and the new version of the optical recording and reproducing manufactured to the standard defining the new management information field. Let the device be a second recording and reproducing device. Since the second recording and reproducing apparatus is manufactured in accordance with the new standard, the second recording and reproducing apparatus can reproduce the recording medium according to the new standard, and the first recording and reproducing apparatus uses only the management information defined in the existing standard other than the new management information field. The recording medium can be reproduced. As a result, the recording medium according to the embodiments of FIGS. 14 to 16 can be reproduced on the first recording medium, thereby ensuring backward compatibility. In addition, since the new management information field needs to be added to the title information, the titleset information or the playlist, the information for each A / V playback can be clearly displayed in the playlist, and the field definition is not complicated.

FIG. 17 illustrates a case in which A / V reproduction information according to the present invention is included as "Description" information in title information. The description information is defined by a content provider in addition to A / V reproduction information. Additional information (AdditionalInfo ") 270 for describing additional information may be further included. The embodiment of FIG. 17 may include A / V reproduction information of the present invention in a description information field which is one management information field. In this regard, all of the A / V reproduction information fields are defined and at least one A / V reproduction information is stored in the corresponding fields.

In this regard, the first recording and reproducing apparatus can reproduce the interactive content using existing title information other than the description information, and the second recording and reproducing apparatus can reproduce the interactive content using the description information and the existing title information. As a result, the interactive content according to the embodiment of FIG. 17 can be reproduced in the first recording / reproducing apparatus, thereby ensuring backward compatibility.

18 shows a case where management information used for each level of the optical recording / reproducing apparatus is separately present. Referring to FIG. 18, the Playlist A file is a playlist file for the Level A recording and playback device 10a, and the Playlist B file is a playlist file for the Level B recording and playback device 10b. Playlist C is a playlist file for a recording and playback apparatus of a new level. The new level recording and reproducing apparatus means an optical recording and reproducing apparatus at a level different from the levels A and B defined in the future according to the development of interactive contents, devices, and devices. Since the level A, level B, and new level optical recording / reproducing apparatus have different ranges of contents that can be played back, the playlists A to C files will define data to be reproduced differently according to levels.

Referring to Titles 1 to 4 described with reference to Fig. 14, for example, the content provider records a Playlist A file on the recording medium that manages reproduction of Title 2 and Title 4 for the Level A recording and playback apparatus 10a, For the level B recording / playback apparatus 10b, a playlist B file managing the reproduction of titles 1 to 4 may be recorded on the recording medium. In this regard, the Playlist A file may include information for A / V playback to be used to create a device menu. In this case, the level A recording and reproducing apparatus 10a may generate and provide a device menu to the user based on the A / V reproduction information. Alternatively, the content provider may generate a menu to be provided to the user through the level A recording / playback apparatus 10a, record it on the recording medium, and store the reproduction information of the menu in the playlist A file. In this case, the level A recording and reproducing apparatus 10a may provide the user with a menu recorded on the recording medium.

The optical recording and reproducing apparatus loaded with the recording medium on which the playlists A to C are recorded will play the contents of the recording medium by playing a playlist file corresponding to its level. Thus, the recording medium is reproduced in all of the level A, the level B, and the recording and reproducing apparatus of the new level to ensure backward compatibility.

In this regard, a method of dividing the playlists A to C files should be defined so that the optical recording and reproducing apparatus can identify the playlist file corresponding to its level. The playlist files may be classified using a file extension of each playlist file. For example, the content provider may store the playlist A file as "xxxxx.xpl" and store the playlist B and C files as "xxxxx.plA" and "xxxxx.plC", respectively. The recording and reproducing apparatuses of the level A, the level B, and the new level can determine the playlist file according to the file extension of the playlist files only. The optical recording and reproducing apparatus reproduces the data defined in the determined playlist file.

Alternatively, the playlist files may be distinguished by using the same file extension and different file names of the respective playless files. For example, the content provider may store the playlist A, B, and C files as "xxx_A.xp1", "xxx_B.xpl", and "xxx_C.xpl", respectively. The recording and reproducing apparatuses of the level A, the level B, and the new level can determine the playlist file according to the file names of the playlist files.

Alternatively, a new field for dividing the playlist into levels may be introduced into a playlist, for example, a level ("Level") field, and the apparatus may execute the playlist in the level field. The recording and reproducing apparatuses of the level A, the level B, and the new level may check the level field in each playlist file and determine a playlist file corresponding thereto.

Fig. 19 shows a case where management information used for each optical recording / reproducing apparatus is separately present. Referring to Fig. 19, the Playlist 1 file is a playlist file for the first recording and reproducing apparatus, which is an optical recording and reproducing apparatus manufactured in accordance with the previous standard, and the Playlist 2 file is in accordance with the new standard of the present invention. A playlist file for the second recording and reproducing apparatus, which is an optical recording and reproducing apparatus, is a playlist file for a new type of recording and reproducing apparatus. The new type of recording and reproducing apparatus means an optical recording and reproducing apparatus manufactured in accordance with another version of the standard defined in the future.

The optical recording and reproducing apparatus loaded with the recording medium on which the playlists 1 to 3 are recorded will play the playlist file suitable for itself to play the contents in the recording medium. Thus, the recording medium is reproduced in all of the first, second and new types of recording and reproducing apparatuses, thereby ensuring backward compatibility.

In this regard, a method of dividing the playlist 1 to 3 files should be defined so that the optical recording and reproducing apparatus can identify the playlist file to be used. The playlist files may be classified using a file extension of each playlist file. For example, the content provider may store the playlist1 file as "xxxxx.xpl" and store the playlist2 and 3 files as "xxxxx.pl2" and "xxxxx.pl3", respectively. The first, second and new types of recording / playback apparatuses may determine only playlist files corresponding to the file extensions of the playlist files, and reproduce the interactive content in the recording medium by playing the determined playlist file.

Alternatively, the playlist files may be distinguished by using the same file extension and different file names of the respective playless files. For example, the content provider may store the playlists 1, 2, and 3 files as "xxx_01.xp1", "xxx_02.xpl", and "xxx_03.xpl", respectively. The first, second and new types of recording and reproducing apparatuses may determine playlist files corresponding to only the file names of the playlist files, and play the interactive playlist in the recording medium by playing the determined playlist file.

Alternatively, a new field for classifying a playlist in a playlist, for example, an Apparatus field may be introduced to store a device for executing the playlist in the device field. The first, second and new types of recording / playback apparatuses may check the device field in each playlist file to determine a playlist file corresponding thereto, and play the determined playlist file to display interactive content in the recording medium. Just play it.

In this regard, since the playlist2 file will contain the above-mentioned A / V reproduction information, the second recording / reproducing apparatus reproduces only data related to the interactive function of the interactive content using the A / V reproduction information. It may be. Of course, the above-described device menu can be generated and provided to the user based on the A / V reproduction information.

In relation to this, the various A / V reproducing information described in FIG. 14 is equally applicable to FIGS. 15 to 19. Therefore, in order to avoid duplication of explanation, it will be clear from FIG. 15 to FIG. 19 that description of the above various A / V reproduction information is omitted.

20 shows an example in which interactive content is reproduced in the optical recording and reproducing apparatus of the present invention.

When the optical recording and reproducing apparatus loads the recording medium on which the interactive content is recorded, the optical recording and reproducing apparatus analyzes the playlist (S101) and checks the information for A / V reproduction of the present invention (S102). The control unit of the optical recording and reproducing apparatus generates a device menu based on the A / V reproduction information (S103). The controller may store the generated device menu in a memory for reuse of the device menu and enhancement of interactivity. The device menu is displayed on the screen 20 after a user's request or completion of playback of the current title (S104). The device menu may be generated so that various information is displayed according to the A / V playback information in the playless, and a user may play back titles to be played from titles listed in the device menu using the information displayed in the device menu. Can be selected. When the optical recording and reproducing apparatus is the level A recording and reproducing apparatus 10a, the level A recording and reproducing apparatus is one of data constituting the title selected by the user, for example, data not related to an interactive function, for example, constituting the title. The resources constituting the A / V object among the expression objects are reproduced and output to the screen 20 (S105).

The optical recording and reproducing apparatus may continuously reproduce the titles listed in the device menu in accordance with the reproduction mode or reproduction order set in the playlist. In this case, the optical recording and reproducing apparatus will display the device menu on the screen 20 at the request of the user.

If the first playback title (also referred to as "First Play Title") among the titles recorded on the recording medium is a movie title composed of A / V objects, the level A even if the user does not select the first playback title through the device menu. The recording and reproducing apparatus 10a may automatically reproduce the first reproduced title. However, when the first playback title is an interactive title, resources used by A / V objects among the expression objects constituting the first playback title will be played and output on the screen 20.

If there is legal data that must be legally provided to the user in connection with the reproduction of the recording medium, the legal data may be output on the screen 20 together with or after the end of the original playback title. It may be.

20 is only an example for explaining the use of A / V reproduction information in the present invention. Accordingly, the optical recording / reproducing apparatus may generate the device menu during the initialization of the recording medium, or may generate the menu when the user requests the menu.

Regarding the present invention, the present invention has been described with reference to the reproduction of the title recorded on the recording medium, but the title stored in the storage 19, the title downloaded from the server, or the title and / or recorded on the recording medium. Alternatively, the present invention can be similarly applied to a case in which titles stored in the storage 19 and titles downloaded from the server are mixed and played together.

In addition, although the present invention has been described using the title as an example, it will be apparent that the present invention may be equally applied to a scene, a chapter, a subtitle, an audio, an angle, and the like of the title.

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

According to the medium, data storage method and apparatus, and data reproduction method and apparatus according to the present invention, it is possible to effectively reproduce interactive content even in a device having a limited processor and memory. Accordingly, the content provider may provide more various contents to the user, and the user may experience the interactive content on various devices.

Furthermore, the present invention has the advantage of ensuring backward compatibility between the existing playback apparatus and the playback apparatus according to the present invention.

Claims (40)

One or more content units; And And menu information used to generate a menu listing at least one of the one or more content units, without executing an interactive application. The method of claim 1, And the menu information includes data type information indicating whether the content unit can be played back without executing the interactive application. The method of claim 1, The menu information may further include path information of a file including a representative image of the content unit. The method of claim 1, And the menu information further includes detailed information about the content unit. The method of claim 1, And the menu information further includes device condition information indicating a capability of a device capable of playing the content unit. The method of claim 1, And the menu information further includes path information of a file including a still image to be reproduced together with the audio data when the content unit is an audio content unit composed of audio data. The method of claim 1, And the content unit is a title or chapter. Create one or more content units, Generate menu information used to create a menu listing at least one of the one or more content units without executing an interactive application, And storing the one or more content units and the menu information. The method of claim 8, And the menu information is generated to include data type information indicating whether the content unit can be reproduced without executing the interactive application. The method of claim 8, And the menu information is generated to include path information of a file including a representative image of the unit. The method of claim 8, The menu information is generated to include detailed description information of the content unit. The method of claim 8, And when the menu information and the content unit are audio content units composed of audio data, include the path information of a file including a still image to be reproduced together with the audio data. A storage unit for storing data in a medium; And Generating menu information used to generate a menu listing one or more content units and at least one of the one or more content units without executing an interactive application, and controlling the storage unit to control the one or more content units and the menu information; And a control unit for storing in the medium. The method of claim 13, And the control unit generates the menu information to include data type information indicating whether the content unit can be reproduced without executing the interactive application. The method of claim 13, And the control unit generates the menu information to include path information of a file including a representative image of the content unit. The method of claim 13, And the control unit includes the menu information to include detailed description information of the content unit. The method of claim 13, If the content unit is an audio content unit composed of audio data, the controller generates the menu information to include path information of a file including a still image to be reproduced together with the audio data. . Analyze playback management information for one or more content units, Generate a menu listing at least one of the content units based on the reproduction management information; And the reproduction management information includes menu information used to generate the menu without executing the interactive application. The method of claim 18, The menu generation, Confirming from the menu information data type information indicating whether the listed content unit can be reproduced without executing the interactive application, And generating the menu to include the data type information. The method of claim 18, The menu generation, Reconstructing the representative image by checking path information of a file storing the representative image of the listed content unit from the menu information; And generating the menu to include the representative image. The method of claim 18, Checking detailed description information of the listed content unit from the menu information, And displaying the detailed information together with the menu. The method of claim 18, The menu generation, Comparing the device condition information defined for each content unit in the menu information with the performance of the playback device to identify a content unit that can be played by the playback device among the one or more content units, And a device menu that lists the content units that can be played back by the playback device. The method of claim 18, If the listed content unit is an audio content unit composed of audio data, check path information of a file including a still image to be reproduced together with the audio data from the menu information. And reproducing the audio data together with the still image. A reproducing unit for reproducing data; And And a controller configured to analyze playback management information of at least one content unit and to generate a menu for listing at least one of the content units based on the playback management information. And the reproduction management information includes menu information used to generate the menu without executing the interactive application. One or more content units; And Includes playback management information for the one or more content units for each performance of the playback device, And the performance of the playback apparatus is classified according to whether the interactive application can be processed. The method of claim 25, And the medium includes first playback management information for a playback device that cannot process an interactive application and second playback management information for a playback device that can process the interactive application. The method of claim 26, And the first reproduction management information includes menu information used to generate a menu for listing at least one of the one or more contents without executing the interactive application. Generating performance management information for each of at least one content unit and the at least one content unit, Storing the one or more content units and the reproduction management information for each performance; The playback management information for each performance may include first playback management information for a playback device that cannot process an interactive application and second playback management information for a playback device that can process the interactive application. Way. The method of claim 28, And the first reproduction management information is generated to include menu information used to generate a menu listing at least one of the one or more contents without executing the interactive application. A storage unit for storing data in a medium; And A control unit for generating play management information for each performance in one or more content units and the one or more content units, and controlling the storage to store the one or more content units and the play management information for each performance. The playback management information for each performance may include first playback management information for a playback device that cannot process an interactive application and second playback management information for a playback device that can process the interactive application. Device. The method of claim 30, The control unit generates the first reproduction management information to include menu information used to generate a menu for listing at least one of the one or more contents without executing the interactive application. One or more content units; And And the playback management information for the content unit for each performance of the playback device. Selecting playback management information that matches the performance of the playback apparatus from among the first playback management information and the second playback management information for the one or more content units, Reproduce at least one of the one or more content units based on the selected reproduction management information; The first playback management information is playback management information for a playback device that cannot process an interactive application, and the second playback management information is playback management information for a playback device that can process the interactive application. How to play data. The method of claim 32, If the selected reproduction management information is the first reproduction management information, And a menu listing at least one of the one or more content units based on the menu information in the first reproduction management information without executing the interactive application. A reproducing unit for reproducing data; And From the first playback management information and the second playback management information for one or more content units, playback management information matching the performance of the playback apparatus is selected, and the playback unit is controlled to control the one or more contents based on the selected playback management information. A control unit for playing at least one of the units, The first playback management information is playback management information for a playback device that cannot process an interactive application, and the second playback management information is playback management information for a playback device that can process the interactive application. Data playback device. The method of claim 34, wherein If the playback device is a playback device that cannot process the interactive application, And the control unit generates a menu listing the at least one content unit without executing the interactive application based on the menu information in the first reproduction management information. One or more content units; And Includes playback management information for the at least one content unit for each version of a playback device, The version-specific playback management information includes first playback management information for a playback device that cannot interpret menu information used to generate a menu listing at least one of the one or more content units without executing an interactive application, and the menu; And second reproduction management information for a reproduction apparatus capable of interpreting the information. Generate version-specific playback management information for one or more content units and the one or more content units, Storing the one or more content units and the reproduction management information for each version; The version-specific playback management information includes first playback management information for a playback device that cannot interpret menu information used to generate a menu listing at least one of the one or more content units without executing an interactive application, and the menu. And second reproduction management information for a reproduction device capable of interpreting the information. A storage unit for storing data in a medium; And Generating at least one content unit and playback management information for each version of the at least one content unit, and controlling the storage unit to store the at least one content unit and playback management information for each version on the medium, The version-specific playback management information includes first playback management information for a playback device that cannot interpret menu information used to generate a menu listing at least one of the one or more content units without executing an interactive application, and the menu; And second reproduction management information for a reproduction apparatus capable of interpreting the information. Selecting playback management information corresponding to a version of a playback device from among first playback management information and second playback management information for one or more content units and playback management information for the one or more content units, Reproduce at least one of the one or more content units based on the selected reproduction management information; The first reproduction management information is reproduction management information for a reproduction device that cannot interpret menu information used to generate a menu listing the at least one content unit without executing an interactive application, and the second reproduction management information Is reproduction management information for a reproduction device capable of interpreting the menu information. A reproducing unit for reproducing data; And Selecting playback management information corresponding to a version of a playback device from among first playback management information and second playback management information for one or more content units and playback management information for the one or more content units, and selecting the playback management information. And a controller for controlling at least one of the one or more content units to control the playback unit on the basis of The first reproduction management information is reproduction management information for a reproduction device that cannot interpret menu information used to generate a menu listing the at least one content unit without executing an interactive application, and the second reproduction management information Is reproduction management information for a reproduction device capable of interpreting the menu information.

Images