KR20080044621A - Method for playing and searching sub picture in optical disc device - Google Patents

Abstract

A method for reproducing and searching a secondary picture in an optical disk device is provided to facilitate search of a secondary picture in PIP(Picture-In-Picture) display by reading and storing information on secondary contents and displaying a requested secondary picture together with a primary picture on the same screen. A method for reproducing and searching a secondary picture in an optical disk device comprises the steps of: reading out and storing information on secondary contents included in content of an optical disk requested to be reproduced(S12); if secondary picture content search is requested during reproduction of the optical disk, displaying the stored information of secondary contents through a screen(S15); and if a specific secondary picture displayed on a screen is selected by a user, reproducing content of the selected secondary picture as a primary picture or together with a primary picture including the associated secondary picture(S17).

Description

Method for playing and searching sub picture in optical disc device

1 is an exemplary view illustrating a state in which a general main screen and a sub screen are simultaneously displayed on a screen.

2 is a block diagram schematically showing the configuration of an optical disk device to which the sub-screen search and playback method according to the present invention is applied;

3 is a flowchart for explaining a sub-screen searching and reproducing method in the optical disk device according to the present invention;

4 is an exemplary view illustrating a screen state of searching for a sub screen according to the present invention.

Explanation of symbols on the main parts of the drawings

       10: optical disc device 11: pickup

       12: VDP (Video Disc Player) system 13: microcomputer

       14: OSD generator 15: memory

       20: optical disc

The present invention relates to a sub-screen retrieval and playback method in an optical disc device. For example, when the contents of an optical disc are simultaneously reproduced in a main screen and a sub-screen, the sub-screen content that a user has not viewed is searched. A sub-screen retrieval and reproduction method in an optical disc device capable of reproducing.

In general, in a display device such as a television or a PC monitor, as shown in FIG. 1, a picture in a screen (PIP: Picture) which simultaneously displays a main screen serving as a single screen and a separate sub-screen displayed smaller therein. in Picture) function is applied.

The PIP function enables the user of the display apparatus to check the contents of a program or content (hereinafter referred to as content) of another channel at the same time while playing and watching a specific program or content.

On the other hand, the PIP function, which simultaneously displays the content played between different display devices or different channels through a single screen, for example, a broadcast program is displayed on the main screen as a background, the sub-screen is displayed small in the screen As a result, the content played back from the PC or DVD player is displayed, and the user can switch and view the position of the content displayed on the main screen and the sub screen as necessary.

As described above, when the contents played through the main screen and the sub-screen displayed on the screen of the display apparatus are respectively played on different display apparatuses, the user cannot control the contents at the same time. There was an inconvenience in controlling by operating each display device that the content is played.

Therefore, the present invention was created to solve the above problems, and for example, in an optical disc device, sub-screen content information of contents recorded on an optical disc requested for reproduction is read out and stored in a memory, and the secondary disc content information is stored during reproduction of the optical disc. When a screen content search is requested, the sub-screen content stored in the memory is displayed as a screen, and when a specific sub-screen content is selected, the selected sub-screen content is played as the main screen, or the selected sub-screen content and the corresponding sub-screen content are displayed. It is an object of the present invention to provide a sub-screen retrieval and reproduction method in an optical disc device for reproducing contents of a main screen including a.

In accordance with an aspect of the present invention, there is provided a method for retrieving and reproducing a sub-screen in an optical disc device, the method comprising: reading and storing sub-screen content information included in contents of an optical disc requested for reproduction; and reproducing the optical disc. If the sub-screen content search is requested during the second step, displaying the stored sub-screen content information on the screen, and if the particular sub-screen displayed on the screen is selected, three steps of playing the selected sub-screen content It is done.

The optical disc of the present invention is a high-density DVD (HD-DVD) or a Blu-ray disc (BD) for recording and storing a plurality of contents respectively reproduced on a main screen and a sub-screen, wherein the content information is a specific content. It is characterized by consisting of a start time of the plurality of sub-screen content included in the thumbnail and the start time.

The present invention is characterized in that in the step 3, the selected sub screen content is reproduced as the main screen.

The present invention is characterized in that in the step 3, the content of the main screen including the selected sub-screen content and the corresponding sub-screen content is played together.

In addition, another aspect of the present invention is a step of reading and storing the sub-screen content information included in the content of the optical disk requested to play, and if the sub-screen content search is requested during the playback of the optical disk, the stored sub-screen content information screen And a second step of displaying the selected sub-screen displayed on the screen and reproducing the selected sub-screen content and contents of the main screen including the sub-screen together.

Hereinafter, a preferred embodiment of the sub-screen search and playback method in the optical disk device according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram schematically illustrating a configuration of an optical disk device to which the sub-screen search and reproduction method according to the present invention is applied.

First, the optical disc apparatus 10 to which the sub-screen searching and reproducing method according to the present invention is applied includes, for example, an optical pickup 11, a VDP (Video Disc Player) system 12, The microcomputer 13, the OSD generating unit 14, the memory 15, and the like are included.

In the microcomputer 13, when the optical disc 20 is inserted and seated in the optical disc apparatus 10, the VDP (Video Disc Player) system 12 is operated to control the lead-in of the optical disc 20. The navigation information recorded in the area is read, the read navigation information is stored in the memory 15, and the type of the optical disc 20 is checked.

At this time, when the optical disc 20 is a high density digital versatile disc (HD-DVD) or a blu-ray disc (HD-DVD), the content information recorded on the optical disc 20 is included. Secondary screen content information including a plurality of sub-screen content start points and thumbnails of the corresponding start points included in the specific content is read and stored in the memory 15.

Subsequently, in the microcomputer 13, when a specific content of the optical disc 20 is selected to be reproduced in response to a user's request, a series of reproductions for controlling the VDP (Video Disc Player) system 12 to play the selected content are performed. Will perform the action.

On the other hand, in the microcomputer 13, when the sub-screen content search is requested while the specific content is being reproduced, the sub-screen content information stored in the memory 15 is read out through the OS D generation unit 14. A plurality of sub-screen contents are displayed on the screen, and when a specific sub-screen content is selected, an operation of playing the selected sub-screen content is performed.

An operation process of the optical disk device to which the sub-screen search and playback method according to the present invention configured as described above is applied will be described in detail with reference to FIGS. 3 and 4.

3 is a flowchart illustrating a method for searching and reproducing a sub-screen in an optical disk device according to the present invention, and FIG. 4 is an exemplary view showing a screen state for searching for a sub-screen according to the present invention.

First, as shown in FIG. 3, in the sub-screen search and playback method according to the present invention, when any one optical disk 20 is inserted and seated in the optical disk device 10 such as a DVD player (S10). In the microcomputer 13, navigation information recorded in a lead-in area of the optical disc 20 is first read, stored in the memory 15, and the navigation information is stored. The optical disc type (Disc_Type) information included in the search is checked (S11).

In this case, the optical disc 20 includes, for example, a high-density digital versatile disc (HD-DVD) in which a plurality of contents are recorded for reproducing high-definition video and audio data into a main screen and a sub-screen, respectively. Alternatively, in the case of a blue-ray disc, secondary content information is read from the content information recorded on the optical disc 20 and stored in the memory 15 (S12). Here, the sub screen content information includes a plurality of sub screen content start points included in a specific content and thumbnails of the start points.

Then, in the microcomputer 13, when a specific content of the optical disc 20 is selected to be reproduced in response to a user's request, the microcomputer 13 controls the VDP (Video Disc Player) system 12 to play back the selected content. The operation is performed (S13).

On the other hand, in the microcomputer 13, when the sub-screen content search is requested in the state where the specific content selected by the user is being reproduced (S14), the sub-screen content information stored in the memory 15 is read and the OSD is read. The generation unit 14 displays thumbnails corresponding to starting points of the plurality of sub-screen contents on the screen as shown in FIG. 4 (S15).

In the micom 13, when a specific subscreen displayed as the screen is selected (S16), the selected subscreen content is converted into a main screen and played, or a main screen including the selected subscreen content and the corresponding subscreen content is displayed. The operation of playing the content together is performed (S17).

As described above, in the present invention, when the user simultaneously watches the content displayed on the main screen and the sub-screen, the concentration of the content is distributed and pays more attention to the content displayed on the main screen. Since the content of the content is not properly watched and is simply skipped, it is possible to solve a problem that is difficult to accurately grasp the production intention of the reproduced content creator.

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

The sub-screen searching and reproducing method of the optical disk device according to the present invention constructed and constructed as described above may, for example, read in advance the sub-screen content information included in the content of the optical disk requested to be reproduced and store it in a memory. If a sub-screen content search is requested during playback of the optical disc, the sub-screen content stored in the memory is displayed as a screen. When the specific sub-screen content is selected, a main screen including the selected sub-screen content and the corresponding sub-screen content. By playing the contents together, the user can search and watch the contents played on the sub-screen at any time, so that the intention of the creator who produced the contents can be more clearly understood.

Claims (8)

A first step of reading and storing sub-screen content information included in contents of an optical disc for which reproduction is requested; If the sub-screen content search is requested during the optical disc playback, displaying the stored sub-screen content information on a screen; And And reproducing the selected sub-screen contents when the specific sub-screen displayed on the screen is selected. The method of claim 1, And the optical disc is a high-density DVD (HD-DVD) or a Blu-ray Disc (BD) for recording and storing a plurality of contents respectively reproduced on a main screen and a sub-screen. The method according to claim 1 or 2, And the content information comprises a start point of a plurality of sub-screen contents included in specific content and thumbnails of the start point. The method according to claim 1 or 2, In the step 3, the selected sub picture contents are reproduced as a main picture. The method according to claim 1 or 2, The sub-screen searching and reproducing method of claim 3, wherein the selected sub-screen content and the content of the main screen including the sub-screen content are played together. A first step of reading and storing sub-screen content information included in contents of an optical disc for which reproduction is requested; If the sub-screen content search is requested during the optical disc playback, displaying the stored sub-screen content information on a screen; And If the particular sub-screen displayed on the screen is selected, the sub-screen search and playback method comprising the step of playing the selected sub-screen content and the content of the main screen including the sub-screen together; . The method of claim 6, And the optical disc is a high-density DVD (HD-DVD) or a Blu-ray Disc (BD) for recording and storing a plurality of contents respectively reproduced on a main screen and a sub-screen. The method according to claim 6 or 7, And the content information comprises a plurality of sub-screen content start points and thumbnails of the corresponding start points included in a specific content.

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