KR100589809B1 - Method for thumbnail picture preview in optical disc device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for previewing a reduced image in an optical disk device. When an arbitrary reduced image is selected through a title or chapter menu screen in an optical disk device such as a DVD recorder, a title or a representative image of the reduced image is displayed. By searching and playing chapters, by performing thumbnail preview operation that displays the playback video as a thumbnail or a thumbnail that is played back in real time within the title menu screen, the user can efficiently check the contents of the title or chapter desired by the user within the menu screen. This is a very useful invention that can greatly reduce the time and effort required to select a title or chapter.

Optical disc device, DVD recorder, thumbnail preview, movie, title menu screen, chapter menu screen

Description

Thumbnail preview method in optical disc device {Method for thumbnail picture preview in optical disc device}             

1 shows a configuration of a general DVD recorder,

FIG. 2 illustrates an embodiment of a title menu screen output and displayed by a general DVD recorder.

3 illustrates a process of searching for a start recording position of a title corresponding to a reduced image in a general DVD recorder.

4 is a flowchart illustrating an operation of a method of previewing a reduced image in an optical disk device according to the present invention;

5 illustrates an embodiment of a title menu screen output and displayed according to the present invention;

6 illustrates an embodiment in which a reduced image reproduced in real time in a title menu screen is displayed according to the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDR system 13: micom

14: menu graphic generating unit 15: reduced image generating unit

16: memory

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of previewing a reduced image in an optical disk device. For example, in an optical disk device such as a DVD-Recorder, a title or chapter menu screen in which a plurality of thumbnail pictures are displayed is provided. The present invention relates to a method for previewing a reduced image in an optical disc device for allowing a user to efficiently select a desired title or chapter.

In general, optical discs capable of recording, storing, or reproducing high-definition video data and high-quality audio data for a long time, such as a rewritable DVD-RW or RAM, have been widely spread and commercialized. Optical disc devices, for example, DVD recorders, which can read, reproduce, or record and record data recorded on a rewritable DVD have been developed and commercialized.

On the other hand, in the optical disc device, for example, a DVD recorder, as shown in FIG. 1, an optical pickup 11, a VDR (Video Disc Record) system 12, a microcomputer 13, and a menu graphic generating unit 14 are shown. , The reduced image generation unit 15, and the memory 16 may be included.

In addition, in the microcomputer 13, when the user requests a data recording operation while the optical disk 10 such as a rewritable DVD is inserted into the apparatus, the microcomputer 13 operates and controls the VDR system 12, The video and audio data input from the recording medium is recorded and stored on the optical disc 10. For example, video and audio data continuously recorded from a time point at which the data recording operation is started to a time point at which the data recording operation starts are terminated. It will be managed separately.

In addition, one title that is classified and managed as described above may be classified and managed by a plurality of chapters by a user's editing operation or the like. In the microcomputer 13, the reduced image is requested by the user. The operation unit 15 controls operation to capture any representative screen image representing the title or chapter as a reduced image having a predetermined size.

On the other hand, a presentation time stamp (PTS) capable of accessing a recording position for the reduced image is recorded and managed as navigation information of the optical disc, and then a user displays a title menu screen or chapter menu screen display. When requesting, the microcomputer 13 searches for the presentation time stamp, accesses the recording position, and then controls the reduced image generating unit 15 and the menu graphic generating unit 14 to control the number of times. Displays a title or chapter menu screen on which thumbnails of the images are displayed.

For example, on the title menu screen, as shown in FIG. 2, reduced images representing each title are displayed in a list form, and the user selects any one reduced image from among the plurality of reduced images. In the case of designation, the microcomputer 13 checks the presentation time stamp corresponding to the reduced image, and then performs a series of operations for searching and reproducing the recording position as shown in FIG.

Accordingly, the user may select and designate one of the reduced images displayed on the title menu screen or the chapter menu screen, and then easily select and play the title or chapter corresponding to the reduced image. It becomes possible.

However, as a result of checking the title or chapter to be played back in real time by selecting and specifying any one reduced image as described above, if the content of the title or chapter is not the content desired by the user, the user displays the title or chapter menu screen display. After requesting again, if a plurality of thumbnails are displayed on the title or chapter menu screen, the user must repeat the operation of reselecting and re-selecting any one of the other thumbnails, thereby accurately selecting and specifying the desired title or chapter. To feel uncomfortable, of course, a problem that takes a long time occurs.

Therefore, the present invention was created to solve the above problems, and in an optical disc device such as a DVD recorder, when a single reduced image is selected through a title or chapter menu screen, a title represented by the reduced image Or an optical disc for efficiently checking and selecting a desired title or chapter by performing a thumbnail preview operation of searching for and playing back chapters and displaying the playback video as a thumbnail that is played back in real time in a title or chapter menu screen. Its purpose is to provide a preview method for thumbnails on a device.

In the optical disk device according to the present invention for achieving the above object, the reduced image preview method is, when a plurality of reduced images are displayed as a menu screen, when the preview operation for any one reduced image is requested, the reduced image Step 1 of searching for a recording position corresponding to the video: Step 2 of converting the playback video into a reduced size of a predetermined size while performing a real-time playback operation from the searched recording position; And displaying the converted reduced image on the screen as a reduced image which is reproduced in real time instead of the one reduced image.

Hereinafter, a preferred embodiment of a reduced image preview method in an optical disk device according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating a method of previewing a reduced image in an optical disk device according to the present invention. For example, in the reduced image preview method according to the present invention, a video recording mode is applied. It can be applied to an optical disc device such as a DVD recorder.

On the other hand, in the DVD recorder configured as described above with reference to FIG. 1, a title or chapter menu screen is outputted and displayed according to a user's request. For example, in the microcomputer 13, a user displays a title menu screen. If the display is requested, the corresponding title menu display mode is set (S10).

In addition, the microcomputer 13 searches for and confirms reproduction time information corresponding to a reduced image representing each title, that is, presentation time stamp (PTS), among navigation information of the optical disc 10 inserted into and placed in the device ( S11).

The operation of the VDR system 12 is performed to search for a recording position corresponding to the presentation time stamp, and the representative image of the title is read out, and the operation of controlling the reduced image generation unit 15 is performed. In operation S12, the read representative screen is converted into a reduced image having a predetermined size.

On the other hand, the microcomputer 13, by operating the menu graphic generating unit 14 to display the reduced images converted to a predetermined size as described above in the form of a list on the title menu screen, the title menu As illustrated in FIG. 5, the screen includes reduced images corresponding to a plurality of titles.

In addition, in the title menu screen, when a user selects and designates a single reduced image, a preview for easily confirming a title corresponding to the reduced image as a reduced image reproduced in real time on the current title menu screen ( Preview) menu button may be additionally included.

For example, in the microcomputer 13, as shown in FIG. 5, the user newly adds a cursor to a reduced image corresponding to a second title, according to the present invention. In the case of inputting the preview menu button or selecting and inputting a preview button separately provided in the remote controller or the like (S14), it is determined whether the reduced image at which the cursor is currently positioned is a reduced image representing the second title (S15). .

Then, the microcomputer 13 retrieves the presentation time stamp corresponding to the reduced image from the navigation information of the optical disc, searches for the recording position corresponding to the presentation time stamp, and reproduces data from the recording position. A series of operations are performed (S16).

On the other hand, the microcomputer 13, the operation control of the reduced image generation unit 15, and converts the video image to be reproduced in real time to a reduced image of a predetermined size (S17), and generates the menu graphic Operation 14 is controlled to display a reduced image of the converted second title as a reduced image of a video reproduced in real time in a title menu screen (S18).

Accordingly, as shown in FIG. 6, the reduced size image of the second title selected by the user is displayed on the title menu screen as a video that is reproduced in real time, and the remaining titles (Title 1, 3, 4, 5, The reduced image corresponding to 6) is displayed in the still image state.

Therefore, the user can easily check whether the desired title is correct while checking the content of the second title displayed as a video in the title menu screen. If the second title is not the content desired by the user, Another reduced image displayed as a still image in the title menu screen can be easily selected and designated.

On the other hand, as a result of confirming the contents of the second title displayed as a moving picture in the title menu screen, if the desired title is correct, a general playback key or the like is input. In the microcomputer 13, as described above, If a playback key or the like is input (S19), the normal playback operation is performed by restoring to the original screen size from the current recording position, or searching for the start recording position of the second title again. From the start recording position, to restore the original screen size, and performs a series of corresponding operations to perform a normal playback operation (S20).

For reference, the present invention may be equally applied to the chapter menu screen display operation, and may also be applied to various types of optical disc devices such as DVD players as well as DVD players.

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.

In the optical disk device according to the present invention configured and configured as described above, in the optical disk device such as a DVD recorder, when any one reduced image is selected through the title or chapter menu screen, the reduced image is While searching for and playing a representative title or chapter, a thumbnail preview operation for displaying the playback video as a thumbnail that is played back in real time in the title or chapter menu screen is performed to display the contents of the title or chapter desired by the user in the menu screen. Since it is possible to check and select efficiently, it is a very useful invention that can greatly shorten the time and effort required for selecting a title or chapter.

Claims (7)

If a plurality of thumbnails are displayed on a menu screen and a preview operation is requested for any one thumbnail, the title represented by the thumbnail is searched for by referring to a presentation time stamp (PTS) corresponding to the thumbnail. Or step 1: search for a specific recording location in the chapter: Performing a real-time reproduction operation from the searched recording position and converting the image reproduced in real time into a reduced image having a predetermined size that matches the reduced image; And And displaying a reduced image of the video being played and converted in real time, and displaying the remaining reduced images together as a still image. delete delete delete The method of claim 1, And reconstructing and reproducing the original screen size from a recording position currently being reproduced, when normal reproduction is requested during the preview operation. The method of claim 1, If the normal playback is requested during the preview operation, the method further comprises reproducing the original recording size from the starting recording position after re-searching the starting recording position of the corresponding title or chapter. A preview method of a reduced image on an optical disk device. The method of claim 1, The reduced image is a reduced image of a representative screen set in advance to represent a title or chapter recorded by a video recording method, and the optical disc device is a DVD recorder to which a video recording method is applied. To preview thumbnails.

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