KR100678017B1 - Method for changing data unit - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of changing a data unit. For example, in various types of optical disc devices such as DVD recorders, titles, chapters, etc., which are separately managed by navigation information of an optical disc, By changing the hierarchical level of the first data unit and the second data unit having the same different hierarchical level two or more times in succession according to a user's request, the user wants to change the data unit to another hierarchical level. It is a very useful invention that it is possible to change to a data unit of an appropriate level, so that any chapter desired by the user can be changed to a new title, or a title desired by the user can be easily changed to a chapter in any other title.

Disc recorder, hierarchical level, data unit, title, chapter, navigation information, OSD screen

Description

How to change data unit {Method for changing data unit}

1 shows a configuration of a general optical disk device,

Fig. 2 shows an embodiment of titles and chapters which are recorded and managed on a general optical disc.

3 illustrates an embodiment of an OSD screen output and displayed according to the present invention.

4 illustrates an embodiment in which a chapter is changed to a title by a data unit changing method according to the present invention.

5 is a view showing another embodiment of an OSD screen output displayed according to the present invention;

6 illustrates an embodiment in which a title is changed to a chapter by a data unit changing method according to the present invention.

FIG. 7 illustrates an embodiment in which chapters are copied and changed into titles by a data unit change method according to another embodiment of the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDR system 13: micom

14: OSD generator 15: memory

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of changing a data unit. For example, in various types of optical disc devices such as DVD recorders, titles, chapters, etc., which are separately managed by navigation information of an optical disc, A method of changing a data unit for enabling a user to change a first data unit and a second data unit having the same different hierarchical level to a data unit of another hierarchical level desired by a user.

In general, an optical disc apparatus capable of recording and reproducing high quality video data and high quality audio data for a long time, for example, a DVD recorder, has an optical disc 10, an optical pickup 11, and a VDR as shown in FIG. (Video Disc Record) system 12, microcomputer 13, OSD generator 14, memory 15, and the like.

In the meantime, the microcomputer 13 operates and controls the VDR system 12 according to a user's request, processes and encodes a video and audio signal input from the outside, and records the same on the optical disc 10. A series of data recording operations are performed. At this time, video and audio data recorded on the optical disc 10 are recorded and managed as titles recorded with temporal continuity, as shown in FIG.

In addition, the microcomputer 13 sets a chapter for randomly accessing a recording position in the title according to a user's request. Titles and chapters managed as described above are shown in FIG. 2. As described above, recording management is performed as navigation information in the lead-in area.

For example, as shown in FIG. 2, the first title information Title # 1_Info of the navigation information includes recording start / end position information Rec_S / E_Position, chapter number information, and The first to third chapter information (Chapter # 1_Info to Chapter # 3_Info) is recorded and recorded, and the second title information (Title # 2_Info) includes recording start / end position information, chapter number information, and first and first information. Two chapter information (Chapter # 2_Info, Chapter # 2_Info) may be included and recorded.

In addition, the microcomputer 13 operates and controls the OSD generating unit 14 according to a user's request, so that title list information for the first title and the second title is changed to an OSD screen. When the user selects and designates an arbitrary title or chapter through the OS screen of the title list, the user can quickly search for the corresponding recording position by referring to the corresponding title information or chapter information. And playback.

However, if the user wants to change any one title to a chapter or to change any one chapter to a title, the title and the chapter, as described above, record management at different hierarchical levels. Therefore, it is impossible to simply change the information, but there is no effective solution for this.

Accordingly, the present invention was created in view of the above problems and circumstances, and includes, for example, a first having different hierarchical levels, such as title and chapter, which are separately managed by navigation information of an optical disc. By changing the hierarchical level of the data unit and the second data unit two or more times in succession according to a user's request, the user can easily change the desired data unit to a data unit of another hierarchical level. It is an object of the present invention to provide a method of changing a data unit.

A data unit change method according to the present invention for achieving the above object is a data unit change method for mutually changing a first data unit and a second data unit having a hierarchical level different from the first data unit. Receiving a user input for requesting a hierarchical level change of the first data unit or the second data unit; And performing two or more consecutive operations for changing the hierarchical level of the first data unit or the second data unit according to the received user input.

In addition, the first data unit and the second data unit are titles and chapters having different hierarchical levels on the navigation information, and the user input is received through an OSD screen capable of a user interface, and the ODS screen And a navigation information for selecting and specifying the first data unit and the second data unit, and a user selection menu item for requesting a hierarchical level change.

Hereinafter, exemplary embodiments of a data unit change method according to the present invention will be described in detail with reference to the accompanying drawings.

First, the data unit changing method according to the present invention can be applied not only to a DVD-Recorder configured as described above with reference to FIG. 1, but also to various other optical disc devices. In the microcomputer 13 of the applied optical disk device, when a user requests a data unit change operation, the microcomputer 13 searches for navigation information of the optical disk 10 and operates the OSD generator 14 to control the operation. In this case, the OSD image including information on data units having different hierarchical levels and a user selection menu item for requesting a hierarchical level change is displayed.

For example, as described above with reference to FIG. 2, recording management is performed by a first title (Title # 1) having three chapters set in the data area of the optical disc and a second title (Title # 2) having two chapters set therein. In this case, as shown in FIG. 3, in the OSD screen, first to third chapters are displayed in association with the first title, and first and second chapters are displayed in association with the second title.

In addition, the OS screen includes a menu item for changing a chapter to a new title and a menu item for changing a title to a chapter including the user interface.

In addition, the microcomputer 13 selects a menu item (Chapter to New Title) for designating to change the chapter to a new title while the user selects the first chapter in the first title through the OS screen. In case of selection input, after changing the first chapter (Chapter # 1) included in the first title (Title # 1) to a new third title (Title # 3), as shown in FIG. 3 Title information (Title # 3_Info) is generated and recorded.

Meanwhile, the third title information includes recording start / end position information corresponding to the first chapter in the first title selected by the user, chapter number information (for example, one), and first chapter information (Chapter # 1_Info). In this case, the microcomputer 13 generates and records new third title information and continuously changes the first title information (Title # 1_Info).

That is, as shown in Fig. 4, the recording start / end position information recorded in the first title information is new recording start / end position information (Rec_S / E_Position ') corresponding to the remaining recording positions except for the third title. The number of chapters is changed to new chapter number information (Number of Chapter ').

Then, the hierarchical level changing operation of changing the previous second chapter information and the third chapter information into new first chapter information CP # 1'_Info and second chapter information CP # 2'_Info, respectively, is performed. Since the first chapter of the first title selected by the user is changed to a new third title, the previous first title information and the chapter information are appropriately changed and managed.

On the other hand, in the microcomputer 13, as shown in FIG. 5, a user selects a first title (Title # 1) and a second chapter (Chapter # 2) included in the second title through the OS screen. In case of selecting and inputting a menu item for designating that the title is to be changed to chapter in the state of selecting each of them, as shown in FIG. 6, the previous first title (Title # 1) information is deleted. do.

After changing the entire first title to a new third chapter (Chapter # 3) subsequent to the second chapter (Chapter # 2) of the second title, the second title information is changed. In the changed second title information (Title # 2'_Info), new recording start / end position information (Rec_S / E_Position ') including the previous first title selected by the user is changed and recorded.

In addition, the changed second title information (Title # 2'_Info) is changed and recorded with new chapter number information (Number of Chapter ') with the number of chapters from two to three, and the third chapter information (CP # 3_Info). Is additionally recorded and recorded, so that the first title selected by the user can be easily changed to the third chapter in the second title.

On the other hand, in another embodiment according to the present invention, it is possible to copy and change the chapter of any one title selected by the user to a new title, or to copy and change the title selected by the user to the chapter of any one title. have.

For example, as illustrated in FIG. 7, when the microcomputer 13 requests to change the chapter to a new title while the user selects the first chapter in the first title, the microcomputer 13 may change the first title ( Directly read the data stream of the first chapter (Chapter # 1) included in Title # 1), copy and write a new third title (Title # 3) in another area, and then write third title information (Title # 3_Info). Create and record.

Meanwhile, the third title information includes recording start / end position information, chapter number information (for example, one), and first chapter information (Chapter # 1_Info) of the third title that is copied and recorded. At this time, the microcomputer 13 continuously generates and records new third title information and changes previous first title information (Title # 1_Info).

That is, as shown in Fig. 7, new recording start / end position information (Rec_S / E_Position ') corresponding to the recording start / end position information recorded in the first title information corresponding to the remaining recording positions excluding the first chapter. ), And the new chapter number information (Number of Chapter '), which changes the number of chapters from three to two.

After deleting the first chapter information (CP # 1_Info) previously recorded and managed, only the second chapter information (CP # 2_Info) and the third chapter information (CP # 3_Info) are recorded or the second chapter is recorded. The information and the third chapter information may be changed and managed into new first chapter information CP # 1'_Info and second chapter information CP # 2'_Info.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The data unit change method according to the present invention configured and configured as described above includes, for example, titles and chapters separately managed by navigation information of an optical disc in various types of optical disc devices such as a DVD-Recorder. The data unit desired by the user by performing the operation of changing the hierarchical level two or more times in succession according to the user's request for the first data unit and the second data unit having different hierarchical levels, such as (Chapter). Can be changed to other hierarchical levels of data units, allowing users to easily change any chapter that they want to a new title, or simply change the title that they want to to be within any other title. It is a useful invention.

Claims (6)

A data unit changing method for changing a first data unit and a second data unit having a different hierarchical level from the first data unit, Receiving a user input for requesting a hierarchical level change of the first data unit or the second data unit; And In accordance with the received user input, comprising the step of performing at least two consecutive operations for changing the hierarchical level of the first data unit or the second data unit, The first data unit or the second data unit is a title or chapter having different hierarchical levels on the navigation information, The method for changing the hierarchical level includes changing navigation information corresponding to the title or chapter at least two times in succession. delete The method of claim 1, And the user input is received through an OS screen capable of a user interface. The method of claim 3, And displaying, on the OS screen, navigation information for selecting and specifying the first data unit and the second data unit, and a user selection menu item for requesting a hierarchical level change. delete The method of claim 1, In the second step, after changing the data stream of the first data unit or the second data unit requested for change in another area, the data unit change is performed. Way.

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