KR100722595B1 - Chapter hide level display method of title recorded on recording medium - Google Patents

Abstract

The present invention provides a method for displaying chapter hyde levels of a recording title in which a color of title items of a program displayed in a title list can be displayed in varying degrees according to the degree of hide of chapters for dividing the program of the recording medium into access units. . To this end, the present invention provides a method of displaying a representative image of an upper layer data unit among at least two data units having a mutual hierarchical structure, the method comprising: checking user-specific information set in each lower layer data unit; And differently displaying the representative image of the higher layer data unit based on the number of lower layer data units to which the user-specified information is designated as a result of the checking. It becomes possible for the user to visually grasp the, so that the chapter setting operation and the program playback function can be performed more efficiently.

Navigation, Titles, Chapters, Cell Information, Hide, Grade

Description

CHAPTER HIDE LEVEL DISPLAY METHOD OF TITLE RECORDED ON RECORDING MEDIUM}             

1 to 3 is a view showing the navigation information defined in the DVD VR (DVD VR) standard,

4 is a diagram illustrating a state in which a title including a chapter that is hidden is displayed on a title list;

5 is a diagram showing the configuration of a DVD recorder to which the method of the present invention is applied;

FIG. 6 is a view showing a state in which cell information corresponding to a chapter that is hided for each program title is hide-set; FIG.

7 is a diagram illustrating a state in which title items of a title list are displayed in different levels of colors according to the number of occupied chapters for each program title shown in FIG. 6 according to one embodiment of the present invention;

8 is a view showing the color of a title item determined according to the percentage ratio of chapters hydrated for each program title according to another example of the present invention;

FIG. 9 is a diagram illustrating a state in which colors of each title item are displayed at different levels according to difference in percentage percentage of chapters hydrated for each program title as shown in FIG. 8;

Fig. 10 is a flowchart for explaining the operation of the chapter hide level display method of the recording title according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: disc, 12: audio and video input

14: MPEG encoder, 16: navigation generator,

18: disc recording unit, 20: disc reading unit,

22: navigation reader, 24: MPEG decoder,

26: OSD generation unit, 28: video output unit,

30: audio output, 32: memory,

34: Micom.

The present invention relates to a method of displaying a chapter hide level of a title recorded on a recording medium, and more particularly, to change the display state of a title according to the degree of hide of a chapter for dividing an access unit for a program title of a disc. A chapter hide level display method of a recording title is provided.

In general, a disc recorder capable of recording and playing back high-quality video data and high-quality audio data for a long time, for example, a DVD recorder, has been developed and commercialized. In the DVD recorder, an external input is performed. The audio and video signals to be encoded are encoded into audio and video data, for example MPEG2 data, in accordance with a DVD format.

The encoded audio and video data is recorded in a data area of a disc in one program unit, and navigation information for controlling reproduction of the program is generated. Recording management is carried out in the navigation information area of the disc and the like.

On the other hand, in the DVD recorder, when data is initially recorded on the disc inserted and seated in the device, the VM recorder generates and records the navigation information 'VMG Table' or 'RTR_VMG Table' defined in the 'DVD Video' standard.

When data is already recorded on the disk, the navigation information recorded on the disk is loaded into the memory in advance, and then the navigation information is corrected / added to the newly recorded program and rewritten on the disk.

For example, the DVD recorder records and manages data continuously recorded from the start of recording to the end of the DVD-RAM into one program. The program includes a plurality of video object units serving as navigation units. (VOBU: Video Object Units), the recording position information of each navigation unit is searched and referenced in real time during program recording, and recorded in TAMPI in the RTR_VMGI Table as shown in FIG.

On the other hand, in the TM_ENT (Time Difference Entry) recorded in the RTR_VMGI Table, the VOBU entry number (VOBU_ENTN), time difference (TM_DIFF), and target VOBU address (VOBU_ADDR) information are recorded and managed as shown in FIG. The target VOBU address (VOBU_ADDR) information designates an address of an arbitrary VOBU in the recorded program (or VOB), and continuously generates TM_ENT whenever the VOBU is additionally recorded by the data recording operation. The address of the newly recorded VOBU is recorded and managed.

The navigation information for controlling reproduction of the program includes program chain information (PGCI), as shown in FIG. 3, wherein cell information (CI) is recorded and recorded in the PGCI. The information CI is recorded and managed so as to correspond to chapters that separate one program (that is, one PGI) into a plurality of access units.

If the program is not separated, one cell information (CI) corresponding to one program is recorded and managed. However, if the program is divided into a plurality of chapters, the cell information is generated as many as the separated chapters. In general DVD recorders, since the criteria for separating the chapters are not clear, the chapters are separated at regular time intervals, or after the recording operation is completed, the user directly sets the chapters at a desired position while playing. When the chapter is separated, the DVD recorder updates the cell information and the program information PGI.

The chapters that are divided into a plurality of access units for each program, that is, titles, can be set to hide some of the chapters according to a user's selective setting operation. In a state in which the hide state is not released, only the chapters in which the hide is not set can be selectively played.

In the DVD recorder, when a user requests a title list of titles of respective programs, a user interface capable of selecting and specifying respective program titles by searching the navigation information is possible. OSD (On Screen Display) image, for example, OSD image of a list of titles in which text information or thumbnail picture corresponding to each title is displayed on an externally connected device such as a television (TV) As shown in Fig. 4, when a plurality of title items are displayed on a title list, even the hide status of the chapter which divides the program of the title into access units can be displayed. Accordingly, the user can determine the hide of the chapter dividing the access unit of the title item by looking at the hide display of each title item displayed in the title list.

However, the DVD recorder only displays whether or not the chapter of the program corresponding to the title is hided in the title list. Therefore, to what extent a plurality of chapters for dividing the program are set to hide. There is a problem that the user's inconvenience in reproducing a new chapter setting or program information in the program is aggravated.

Accordingly, the present invention has been made to solve the above-mentioned conventional problem, and an object thereof is to vary the color of title items of a program displayed in a title list according to the degree of hide of chapters in a recorded program. The present invention provides a method of displaying chapter hide levels of a recording title.

It is another object of the present invention to provide a method of displaying chapter hide levels of recorded titles, which makes it possible to vary the level of color of the corresponding title item in the title list according to the number occupied by the hydrated chapters of the program.

It is still another object of the present invention to provide a method for displaying chapter hyde levels of a recorded title, in which a color level of a corresponding title item displayed in the title list can be displayed in varying proportion to the percentage of chapters set in the program.

In order to achieve the above object, according to the present invention, a method for displaying a representative image of a higher layer data unit of at least two or more data units having a mutual hierarchical structure, the user is set to each lower layer data unit Confirming the specified information, and discriminatingly displaying the representative video of the higher layer data unit based on the number of lower layer data units to which the user specified information has been assigned as a result of the confirmation. It provides a method of displaying the hide level.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 5 is a diagram showing the configuration of a DVD recorder to which the method of the present invention is applied.

As shown in FIG. 5, the DVD recorder according to the present invention includes an audio and video input unit 12 for inputting audio and video information from an external source to be recorded, and the input audio and video information to the disc 10. A navigation recorder 16 for generating / adding / updating navigation information for setting program chapters of the disc 10 under the control of an MPEG encoder 14 and a microcomputer 34 encoding and modulating a recordable format. ), The disc recording unit 15 which records the encoded audio and video information, and records the navigation information on the disc 10, and the program chapters of the disc 10 read out from the disc reading unit 20. Navigation reading section 22 for reading the navigation information in the hide setting state, audio and rain of the disk 10 read out from the disk reading section 20. MPEG decoder 24 for decoding and demodulating false information, an OSD generator 26 for generating graphics and characters for displaying a title list of the disc 10, and video information read from the disc 10. Video output unit 28 for outputting to a display device such as a television or monitor, audio output unit 30 for outputting an audio signal read out from the disc 10 to a speaker, and a program for the disc 10. Hyd of each program chapter recorded in the memory 32 and the disc 10 in which the color control table information for changing the display color of the title item of the title list according to the hide degree of the chapter dividing the access unit is stored. And a microcomputer 34 which controls to change the display color of each title item displayed in the title list according to the degree.

Under the control of the microcomputer 34 referring to the color control table information of the memory 32, the OSD generator 26 hydrates the color of the title item for each program displayed in the title list, and the chapter of the corresponding program is hydrated. Create graphics and text that displays colors at different levels.

Next, Fig. 10 is a flowchart for explaining the operation of the chapter hide level display method of the recording title according to the present invention.

Hereinafter, an operation according to an embodiment of the present invention shown in the flowchart of FIG. 10 will be described in detail in parallel with the operation of the apparatus of FIG. 5.

First, by mounting the disk 10 and driving the servo drive system (step S10), the navigation information is read out from the disk reader 20 so that the navigation information of the disk 10 is read by the navigation reader 22. (Step S11).

The navigation reader 22 reads cell information corresponding to a chapter for dividing an access unit for each program recorded on the disc 10. As shown in FIG. 6, the PGCI of the navigation information is read. The program information PGI corresponding to each program (Program # 1 to #n) in the table refers to cell information, and the cell information is recorded and managed according to the hide setting of the corresponding chapter.

In FIG. 6, for example, one cell information among three cell information Cell # 1 to # 3 of the first program Program # 1 is set to be hyde, and the three cell information of the second program Program # 2 is set. Are all unhydrated, and when both cell information of the third program (program # 3) is set to hide, the microcomputer 34 refers to the color control table information of the memory 32 for each program. The color of title items for each program displayed in the title list is variably displayed according to the number occupied by the hidden cell information in the program.

That is, according to an exemplary embodiment of the present invention, as shown in FIG. 7, the microcomputer 34 includes the original first grade for the title item of the program (Program # 2) that does not include the cell information set in the hide. The title item in the color of), and for the title item of the program (Program # 1) that partially includes the set cell information, the title item is displayed in the color of the second grade which is darker than the color of the first grade. For the title item of the program (Program # 3) in which all cell information is set to hide, the title item is displayed in the color of the third grade which is darker than the second grade.

On the other hand, according to another example of the present invention, when a plurality of chapters of the program are recorded and managed to display the color of the title item according to the degree of hide of the chapter more precisely, as shown in FIG. In the color control table information of 32), the hyde setting of chapters can be divided by a certain percentage ratio, and the title items can be distinguished by different grades according to the percentage ratio, for example, "chapter 0% (first Chromaticity grade)-Chapters 1 to 25% (second color grade)-Chapters 26 to 50% (third color grade)-Chapters 51 to 75% (fourth color grade)-Chapters 76 to 99% (fiveth degree grade) )-Hyde set chapters, such as "chapter 100% (6th color grade)", can be distinguished by a six-step percentage ratio, and gradually darker depending on the percentage of each chapter hyde percentage. Set to be implemented is the color of the item title. However, the step of the percentage ratio can be arbitrarily changed by the set manufacturer of the DVD recorder, and the chromaticity and grade of the title item can be arbitrarily changed according to the percentage ratio.

Thus, for example, the chapter hide ratio for the title of the first program is 20%, the chapter hide ratio for the title of the second program is 0%, the chapter hide ratio for the title of the third program is 100%, the fourth If the chapter hide ratio for the title of the program is 90%, the chapter hide ratio for the title of the fifth program is 70%, and the chapter hide ratio for the title of the sixth program is 40%, the microcomputer 34 shows in FIG. As shown, the title item of the first program is displayed in the color of the second chroma, the title item of the second program is of the first chroma color, and the title item of the third program is of the sixth chroma. Color, the fifth color grade for the title item of the fourth program, the fourth color gray for the title item of the fifth program Color, is displayed in the color of the color grade 3 for the title entry of the sixth program.

As another display method, the total number of chapters and the number of hydrated chapters in the program may be displayed in the same manner as, for example, (number of hydrated) / (number of total chapters).

In FIG. 10, the microcomputer 34 determines whether the user's key input for displaying the title list is made (step S12), and other normal functions are not performed when the user's key input for displaying the title list is not made. Is performed (step S13).

However, if it is determined that the user's key input for displaying the title list for the disc 10 is being made, the disc 10 may be read from the navigation information of the disc 10 read through the navigation reader 22. It is determined whether the chapter of the recorded program is set to Hyde (step S14). If it is determined that the chapter for dividing the access unit of the program is not set to Hyde, the OSD graphic and text of the OSD generator 26 are determined. By the generating operation, the normal title list containing no hide information can be displayed (step S15).

However, if it is determined that the chapters of the program are set to Hyde, according to an example of the present invention, the number of occupations for each program, that is, the chapters of each title, is searched (step S16), and the number of occupied chapters is determined. It is possible to display title items in different grade colors in the title list by distinguishing between titles in which all chapters are not hydrated, titles in which partial chapters are hydrated, and titles in which all chapters are hydrated. Step S17).

In the meantime, the microcomputer 34 searches for the hidden chapters of each program, that is, each title, and calculates a percentage ratio according to another example of the present invention (step S16). The color control table information of the memory 32 is calculated. Reference is made to display the title item in the color of the grade determined for each program's hide chapter percentage ratio (step S17).

On the other hand, the present invention is not limited to the above-described typical preferred embodiments, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions are common in the art Those who have knowledge will easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described above, according to the present invention, a title item corresponding to each program on the title list is different depending on the hide degree of the chapter dividing the access unit for the program of the disc, that is, the number of hide chapters occupied or the percentage of hide chapter percentage in the program. The ability to display grades makes it possible for the user to visually grasp how much chapters are hydrated for each program, making the chapter's operation and program playback more efficient. Will have

Claims (9)

A program information display method having at least two or more data units having a mutual hierarchical structure, A first step of checking hide setting information of a lower access unit divided for each program of the recording medium; And And a second step of displaying the representative video of the higher access unit by using the confirmed result. The method of claim 1, The upper connection unit is a program recorded on an optical disc, And the lower connection unit is a chapter for dividing each program. delete The method of claim 1, In the first step, checking the hide setting information is determined by the number of occupied chapters in each program. The method of claim 1, The method of claim 2, wherein the displayed representative image is configured to gradually display a grade of color gradually according to the number of occupied chapters of the program. The method of claim 5, In the second step, a title item of a program having no chapters that are hydrated is displayed in a first grade color, and a title item of a program that partially contains hydrated chapters is a second grade color of a color darker than the first grade. And the title item of the program whose entire chapter is hydrated is displayed in a third grade color darker than the second grade. The method of claim 1, The method of claim 1, wherein the degree of hide of the chapters for each program is determined by a percentage ratio of chapters hided in the program. The method of claim 7, wherein In the second step, the chapter hyde level display method of the recording title, characterized in that to change gradually the chromaticity (Grade) of the color in accordance with the percentage ratio of the chapters hydrated for each program. The method of claim 8, In the second step, the percentage ratio of the chapters that are hydrated for each program is divided into a certain percentage unit, and as the percentage of the divided percentage unit increases, the chromaticity grade gradually displays the title item in dark colors. How to display the chapter hyde level of a recording title.

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