KR100583564B1 - Regeneration order information generation method and data reproducing method using menu data in rewritable recording medium - Google Patents

Abstract

The present invention can generate menu data of a menu screen which can easily grasp the structure of the reproduction data and select the reproduction order upon reproduction of the record data recorded on the rewritable recording medium, and selectively reproduce according to the generated menu data. The present invention relates to a method of generating reproduction order information using menu data and a method of reproducing data in a rewritable recording medium. The present invention generates a menu data unit by selecting a representative image from the record aggregates of the video recorded on the recording medium, and generates reproduction order information for the menu data unit and records the same in the reproduction order information aggregate (PGC). . When the playback request is made, a menu data unit configured by using the representative image when the playback order information of the read order information of the playback order information set specified by the user is sequentially read and the playback order information of the menu data is checked. When the representative image is selected by the user, playback of the recording aggregate (s) corresponding to the representative image is performed. Therefore, the user can select and reproduce the recorded data according to the user's taste using the menu data. It is a very useful and convenient invention that eliminates time spent by the cumbersome search process.

Description

Regeneration order information generation method and data reproducing method using menu data in rewritable recording media

The present invention relates to a method of generating reproduction order information and a method of reproducing data using menu data in a rewritable recording medium. More particularly, the present invention relates to a method of generating data, such as various video objects, on a rewritable optical disc recording medium. Divides the recorded data into large units and then partitions and edits the divided data into subunits again, and extracts representative images from the images included in the large data and subunit data partitions, respectively. The playback sequence using menu data on a rewritable recording medium for configuring a menu screen and displaying the menu screen of the corresponding unit section for each user when data of each unit section is reproduced so that the selection of playback of the recorded data can be made more convenient. An information generating method and a data reproducing method.

Optical discs are becoming more common as CDs become more popular, and DVD (Digital Versatile Disc) standards are becoming more expected. Optical discs include CD-Rs and DVD-Rs that can be written once, in addition to CD-ROMs and DVD-ROMs for playback purposes, and standard discs such as rewritable CD-RWs, DVD-RAMs, or DVD-RTRWs are proposed. It is becoming. In addition, the working group's activities for the unified standard of DVD-RTRW capable of recording and reproducing are currently in progress.

Here, since rewritable DVD-RAM, DVD-RTRW, and the like are large-capacity recording media, users can use them for recording various recording data (movies, still images, moving pictures / audio, still pictures / audio, etc.). As described above, when various recording data are recorded on one recording medium, as shown in FIG. 1, a recording assembly [VOB (Video OBject) of recording data on the recording medium; VOB # i], which is recorded in units of VOB # i; VOBI # i is generated corresponding to each recording set, and recording set reproduction order information (Cell; C # i) is generated corresponding to each recording set (VOB # i) to generate the original program chain [Original ProGram Chain (PGC). ); Hereinafter, referred to as "original reproduction order information aggregate". In the state where the recording data is recorded as described above, when the user requests a reproduction, the recorded recording data is recorded using the recording assembly reproduction order information (C # i) and the recording assembly reproduction information (VOBI # i). Playback is performed in units of VOB # i).

In addition, the user can edit the playback order of the recorded data in the state of recording the recorded data as described above. For example, as shown in FIG. 1, when the user selects the recording aggregates VOB # 1 to VOB # 5, In the user defined PGC (hereinafter, referred to as "user-defined reproduction order information collection"), one reproduction order information (C # 1) is stored for the selected recording collections (VOB # 1 to VOB # 5). After selecting the recording sets VOB # 8 to VOB # 9, another reproduction order information C # 2 is generated for the selected recording sets VOB # 8 to VOB # 9 in the user-defined program chain. (In this case, the user's selection unit is not a recording aggregate unit, but actually can be selected by each recording unit (one video or audio, etc.) constituting the recording aggregate). In the case where the user edits are made as described above, when the playback is performed by the user editing, the recording sets VOB # 1 to VOB # 5 are reproduced in the order of the user editing, and then the recording sets VOB # 8 to VOB # 9 are reproduced. Will be done.

In the conventional user editing method as described above, there is a problem in that playback can be performed only in the order edited by the user, and the user cannot select and play the edited contents desired. That is, in the playback by user-defined editing in Fig. 1, the recording set reordering information (C #) immediately after the playback of the recording sets (VOB # 1 to VOB # 5) by the recording set reordering information (C # 1). The recording aggregates (VOB # 12 to VOB # 14) cannot be reproduced by 3). Therefore, there is a problem that the user has to spend unnecessary time during the reproduction time of the recording aggregates VOB # 8 to VOB # 9 by the reordering information C # 2.

Accordingly, the present invention has been made to solve the above-mentioned problems, and the menu data of the menu screen which can easily grasp the configuration of the reproduction data and select the reproduction order when the recording data recorded on the rewritable recording medium is reproduced. It is an object of the present invention to provide a method of generating reproduction order information using menu data and a method of reproducing data in a rewritable recording medium capable of generating and selectively reproducing according to the generated menu data.

In order to achieve the above object, a method of generating reproduction order information using menu data in a rewritable recording medium according to the present invention includes a video object recorded on the recording medium in a method of generating data reproduction order information of a rewritable recording medium. A first step of generating a menu data unit by selecting a representative image from the record sets of a; And a second step of generating reproduction order information for the menu data unit.

In the recording data reproducing method using the menu data of the rewritable recording medium according to the present invention, in the recording data reproducing method of the rewritable recording medium, the reproduction order information of the reproduction order information collection designated by the user is sequentially ordered when the reproduction request is made. A first step of reading out; A second step of confirming an attribute of the read order information; And a third step of reproducing a menu data unit constructed using at least one representative image taken from the recording aggregates according to the verification result.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a method of generating reproduction order information using menu data and a method of reproducing data in a rewritable recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view for explaining a method of generating menu data according to the present invention. In the same figure, for a recording set (VOB # i) which is a set of recording data (movie, still picture, moving picture / audio, still picture / audio, etc.) recorded on a rewritable recording medium, the recording set to be reproduced by the user The fields VOB # 1 to VOB # 22 and VOB # 26 to VOB # 42 are divided into a plurality of groups (four groups in the drawing) to generate a Main Menu (MM). At this time, the upper menu screen is composed of representative images (TP1, TP2, TP3, TP4) representing a plurality of groups, which are displayed by the user or in the recording / playback apparatus among the thumbnail pictures of each group. It can be generated automatically by selection.

Sub menus SM1 to SM4 may be generated by dividing each of the divided groups into a plurality of sub groups by the user. In this case, the sub-menu screen includes representative images TP1 to TP16 representing a plurality of sub-groups, which are automatically generated by the user or by the recording / reproducing apparatus among the schematic images of the respective groups. It can be. Each lower menu screen SM1 to SM4 generates a return menu for returning to the upper menu screen MM.

The representative image may include data corresponding to the schematic image, other texts, information on a corresponding position, and the like. The menu data unit for the menu screen structure configured as described above may be arranged on the recording medium in the format shown in FIG. 3. It is recorded in the recording area of the menu screen data.

In the format of the menu data unit shown in Fig. 3, the ID is a recognition code of the menu screen. In the upper menu data unit, the own menu screen recognition code and the identification code of the sub menu screen to be subordinately linked are recorded. In the data unit, its own menu screen recognition code, the identification code of the associated upper menu screen, and the identification code for the associated representative images are recorded.

That is, the upper menu screen MM of FIG. 2 has the identification codes of the four lower menu screens SM1, SM2, SM3, and SM4, and when any one of the representative images TP1, TP5, TP10, and TP14 is selected. The submenu screen is displayed by using the identification code of the submenu screen corresponding to the selected representative image. In addition, the lower menu screen SM1 of FIG. 2 is a recognition code of the upper menu screen MM and the recording sets to which the respective representative images belong as recognition codes for the associated representative images TP1, TP2, TP3, and TP4. Has the identification code of the first recording set, and if any one of the representative images (TP1, TP2, TP3, TP4) is selected, playback is started from the recording set using the identification code of the first recording set linked to the representative image. In addition, when the return menu is selected, the corresponding upper menu screen is displayed by using the identification code of the upper menu screen.

The video data (C) is video data for a plurality of representative images constituting a menu screen, and the additional information (D) includes a size, number, recognition code, data pointer, data size, etc. for the representative image. . The text data E is text data for the title of each representative video, and the additional information F is composed of a text recognition code, a position of the title, a data pointer and the number of characters. The video data G is video data for a plurality of background screens constituting the menu screen.

Here, the upper menu screen and lower menu screen and the menu data unit thereof are as disclosed in Korean Patent Application Nos. 98-23550, 98-23551, and 98-23552 proposed and filed by the present inventors. It can be generated to have the same data structure. In this case, only the identification code ID as described above is added to the data format of the menu data unit.

FIG. 4 is a view for explaining a method of generating reproduction order information using menu data according to the present invention, and is an embodiment of a case in which a menu screen is configured as shown in FIG. 2 by a user. Here, the respective menu data for the menu screens MM, SM1, SM2, SM3, and SM3 are recorded in the menu data recording area on the recording medium.

As shown in the figure, when the user selects the upper menu screen MM as the initial screen at the time of reproduction by user definition, the reproduction order information C # MM for the upper menu screen MM is generated. . Thereafter, as the recording aggregates VOB1 to 3 are selected, reordering information C # 1 for the recording aggregates VOB1 to 3 is generated. Subsequently, in order to reproduce the first sub-menu screen SM1 after the reproduction of the recording assemblies VOB1 to 3 so that the user can select the recording data to be reproduced next, the first sub-menu screen SM1 is selected. As a result, the reproduction order information C # SM1 for the lower menu screen SM1 is generated. Thereafter, the playback procedure information (C # 2, C # SM1, C # 3, C # SM1, C # 4, C # SM2, C # 5, C # SM2, C # 6, C # SM2) is performed in the same manner. ,…)

Here, the reproduction order information C # 1 to C # 16 has a data format as shown in FIG. 5A, for example, and the cell type C_TY is for example when the recording sets are movies. &Quot; 00 ", for example, a case in which the record sets are still pictures, for example, " 01 ", the record set recognition code (VOB_ID) is an identification code of the record sets, and the play time (C_PB_TM) is the record. Total playback time of the aggregates, number PIC_S_N of the playback start image is the index number of the first image in the record aggregates corresponding to the cell, and number PIC_E_N of the playback end image, the record aggregates corresponding to the cell. Is the index number of the last image.

Also, the playback order information (C # MM, C # SM1, C # SM2, C # SM3, C # SM4) for the menu screen has a data format as shown in FIG. C_TY) is distinguished from the playback order information for the moving picture and still picture, and is set to, for example, "10", the menu recognition code (MENU_ID) is the recognition code of the menu screen, and the playback time (C_PB_TM) is the menu screen. Is the playback time. Here, one menu screen is reproduced, and when the reproduction time C_PB_TM has elapsed, reproduction by the next reproduction order information is performed.

FIG. 6 shows a configuration of a recording / player of a recording medium for recording a signal on an optical disc recording medium and reproducing the recording signal. The recording / reproducing device of FIG. Using the menu screen data, an exemplary menu screen as shown in FIG. 2 is constructed.

First, referring to the configuration of FIG. 6, the optical pickup 10 records a signal on the optical recording medium OD and detects the signal therefrom; An analog signal processor 20 for transforming reproduction high frequency signals into digital data to convert the data to be recorded into analog data; A digital signal processor (30) for outputting a control signal to the optical pickup (10) according to the decomposition and synthesis of digital data, ECC block coding and decoding, and the decoding result of the data; An A / V processor 40 for decoding and outputting the input audio / video data (hereinafter referred to as 'A / V data') and encoding the input audio / video signal into A / V data; A controller 50 for controlling the component according to navigation data and a user request for reproducing a signal; And a plurality of memories M1 to M3 for temporarily storing data generated in each signal processing process.

In the apparatus of FIG. 6, recording aggregates (VOB # i) which are a collection of recording data (movie, still image, moving picture / audio, still picture / audio, etc.) recorded on the optical recording medium OD at the request of a user. With respect to the recording aggregates (VOB # 1 to VOB # 22, VOB # 26 to VOB # 42; see FIG. 4) to be reproduced, a plurality of groups (for example, four groups as shown in FIG. When generating a Main Menu (MM), the controller 50 generates a representative image by selecting a user or automatically from a thumbnail picture of each group, and generates a higher menu data unit. To control.

That is, the controller 50, as shown in Figure 3, the identification code including the identification code of the upper menu screen and the identification code of the lower menu screen corresponding to the plurality of groups; The generated video data (C) for a plurality of representative images constituting an upper menu screen; Additional information (D) such as size, number, recognition code, data pointer, and data size of the representative image; Text data E which is text data for a title of each representative video input; Additional information (F) such as text recognition code, title position, data pointer and number of characters; And video data for a plurality of background screens constituting the menu screen are automatically generated or recorded according to a user's request.

Subsequently, when four lower menu screens are generated with respect to the upper menu screen MM as shown in FIG. 2 by a user's request, the controller 50, as described above, shows a schematic image of each group belonging to each lower menu screen. It generates a representative image by selecting a user from the thumbnail picture or automatically and automatically generates a return menu, and controls to generate a menu data unit for each sub-menu screen. Here, in the lower menu data unit of the lower menu screen of FIG. 4, the identification code (ID) records its own identification code, the identification code of the upper menu screen, and the identification code of the first recording collection of the recording collections to which each representative image belongs. .

Next, the generation of the recording data reproduction order information by the recording / reproducing player of the recording medium of FIG. 6 will be described with reference to FIG.

First, when the user selects the generated upper menu screen MM as an initial screen at the time of reproduction, the controller 50 displays the upper menu screen MM in the user-defined reproduction order information collection group PGC table stored in the memory M1. Play order information (C # MM) is generated and recorded, wherein the play order information (C # MM) has a data format as shown in FIG. It is recorded as information (for example, "10") that is distinguished from the cell type (for example, "00", "01") of the order information.

Thereafter, when the user selects the recording assemblies VOB1 to 3 corresponding to the representative image TP1 of the first sub-menu screen SM1, the control unit 50 stores the user-defined reproduction order information stored in the memory M1. The reordering information (C # 1) of the recording sets (VOB1 to 3) is recorded in the aggregate (PGC) table, where the reproduction order information (C # 1) has a data format as shown in FIG. 5A, for example. The cell type is recorded as, for example, "00" or "01" depending on whether the attribute of the recording aggregates VOB1 to 3 is a moving picture or a still picture.

Subsequently, as the first lower menu screen SM1 is selected, the controller 50 displays the reproduction order information for the lower menu screen SM1 in the user-defined reproduction order information collection group PGC table stored in the memory M1. (C # SM1) is generated in the same manner as the reproduction order information (C # MM) of the upper menu screen described above. Thereafter, the controller 50 according to the user's request by the same method by the playback order information (C # 2, C # SM1, C # 3, C # SM1, C # 4, C # SM2, C # 5, Generate C # SM2, C # 6, C # SM2, ...).

Next, the reproduction of the recording data by the recording / reproducing player of the recording medium of FIG. 6 will be described with reference to FIG.

First, when a user's request is input to reproduce the content edited by the user definition, the controller 50 controls the first reproduction order information C recorded in the user-defined reproduction order information aggregate PGC table stored in the memory M1. #MM), the cell type and the menu recognition code are checked, and the menu data recording area of the optical recording medium OD is accessed by the optical pickup 10 to access the upper menu data for the upper menu screen MM. After reading the unit, the signal is processed by the analog signal processor 20, the digital signal processor 30, and the A / V signal processor 40 to control the reproduction of the upper menu screen MM as shown in FIG. (Here, since the reproduction of the menu screen is described in detail in Korean Patent Application Nos. 98-23550, 98-23551, and 98-23552, detailed description thereof will be omitted).

Thereafter, when the user selects the representative images TP1, TP2, TP3, and TP4 displayed on the reproduced upper menu screen MM, the controller 50 recognizes the identification code of the menu data unit for the upper menu screen. By using the identification code of the lower menu screen recorded in the area, the lower menu screen corresponding to the corresponding representative image is controlled to be played in the same manner as the upper menu screen MM.

On the other hand, selection by the representative images TP1, TP2, TP3, TP4 displayed on the reproduced upper menu screen MM by the user for a predetermined time (i.e., cell reproduction time (C_PB_TM) shown in Fig. 5B)] If not, the controller 50 reads out the next reproduction order information C # 1 recorded in the user-defined reproduction order information aggregate PGC table stored in the memory M1, and stores the cell type C_TY, The recording assembly identification code (VOB_ID), the playback start video number (PIC_S_N) and the playback end video number (PIC_E_N) are checked, and the optical pickup 10 records the recording assembly VOB of the optical recording medium OD. After accessing the area, the recording aggregates VOB1 to VOB3 are read out, and then the signal is processed by the analog signal processing unit 20, the digital signal processing unit 30, and the A / V signal processing unit 40 to record the recording aggregates (VOB1 to VOB3). Control to play

In the following playback sequence information (C # 2, C # SM1, C # 3, C # SM1, C # 4, C # SM2, C # 5, C # SM2, C # 6, C # SM2, ...). Also, the controller 50 performs reproduction in the same manner.

Next, an embodiment of the reproduction order information generation method using the menu data according to the present invention will be described with reference to the flow of FIG.

First, as shown in FIG. 4, in a state in which a moving picture, a still picture, and the like are recorded on a rewritable recording medium in units of recording aggregates (movie, still picture, moving picture / audio, still picture / audio, etc.), the data reproduction order by the user If there is a request for information generation, the controller 50 checks this and enters the data reproduction order information generation mode (step S11).

Thereafter, if a request is made by the user to divide a predetermined number of recording aggregates into a plurality of groups, and to divide the divided groups into subgroups to generate a plurality of menu screens, the control unit 50 may further include a diagram. 2 and 3 generate upper menu data units for the upper menu screen and lower lower menu data units for a plurality of lower menu screens subordinately linked to the upper menu screen (step S13). The generated menu data units are recorded in the menu data area of the recording medium (step S15).

Subsequently, when the reproduction order is edited by the user, the controller 50 checks this and proceeds to the reproduction order editing mode (step S17), and confirms whether or not the recording set selected in the current reproduction order editing mode is menu screen data. (Step S19).

As a result of the check in step S19, in the case of menu screen data, the controller 50 generates menu screen reproduction order information as shown in FIG. 5B for the menu screen, and the user-defined reproduction order stored in the memory M1. The data is recorded in the information aggregate PGC table (step S21). Thereafter, the controller 50 confirms whether the data reproduction order information generation mode is terminated by the user, and if not finished, proceeds to step S17 described above, and when finished, proceeds to step S25 and the user of the memory M1. The control is made to record the contents recorded in the positive reproduction order information aggregate (PGC) table on the recording medium, and then the control ends when recording is completed.

On the other hand, if the result of the check in step S19 is not the menu screen data (that is, the recording aggregate), the controller 50 controls the recording aggregate reproduction order information as shown in Fig. 5A with respect to the recording aggregate (s). Is generated, recorded in the user-defined reproduction sequence information aggregate (PGC) table stored in the memory M1 (step S27), and the flow proceeds to step S23 described above.

Next, an embodiment of a data reproducing method using menu data according to the present invention will be described with reference to the flow of FIG. 8.

First, in the state where data reproduction order information is generated / recorded for a recording aggregate and a menu screen such as a moving picture and a still image according to the flow shown in FIG. 7, the user inputs to the above-described user-defined reproduction order information aggregate PGC. If there is a request for reproducing the recorded data based on this, the controller 50 confirms this and enters the recorded data reproducing mode (step S31).

Thereafter, the controller 50 reads out the first reproduction order information recorded in the user-defined reproduction order information aggregate (PGC) table stored in the memory M1 (step S33), and reads the cell type of the read first reproduction order information. On the basis of this, it is confirmed whether or not it is reproduction order information on the menu screen (step S35).

As a result of the check in step S35, if the playback order information is displayed on the menu screen, the controller 50 controls to read / reproduce the corresponding menu data unit recorded in the menu data recording area of the recording medium as described with reference to FIG. (Step S37). Thereafter, the controller 50 checks whether the user selects a representative image constituting the reproduced menu screen (step S39).

As a result of the checking in step S39, when the representative image is selected, the controller 50 checks whether a lower menu screen for the representative image exists in step S41 (step S41), and if so, proceeds to step S37 described above. While the menu screen is read / reproduced, if it does not exist, the recording aggregate (s) for the representative image is read out and reproduced in the recording aggregate recording area of the recording medium (step S43).

Thereafter, the control unit 50 reads out the next reproduction order information recorded in the user-defined reproduction sequence information aggregate (PGC) table stored in the memory M1 (step S45), and determines whether or not the reproduction end mode is selected by the user. If it is confirmed (step S47), if it is not selected, the flow advances to step S35 described above and the control operation of step S35 or less is performed, while playback is terminated when the playback end mode is selected.

On the other hand, if the representative image is not selected in step S39, the controller 50 checks whether a return menu is selected (step S49), and when selected, the control unit 50 records the menu data unit for the current menu screen. Based on the upper menu screen recognition code, the upper menu data unit is read out from the menu data recording area of the recording medium and reproduced (step S51), and the process returns to the above-described step 39. On the other hand, if the return menu (Return) is not selected in step S39, the controller 50 proceeds to step S53 to check whether a predetermined time (i.e., cell regeneration time (C_PB_TM) shown in Fig. 5B) has elapsed, and then elapses. In one case, the process proceeds to step S45 where the next reproduction order information is read out, whereas when it has not elapsed, the process returns to the above-described step S39.

On the other hand, if the determination result of step S35 is not the reproduction order information for the menu screen, the controller 50 proceeds to step S55 to read / reproduce the recording aggregate (s) specified by the reproduction order information, and The flow proceeds to step S45 described above.

According to the method of generating reproduction order information using the menu data and the method of reproducing data in the rewritable recording medium according to the present invention as described above, it is possible to easily grasp the configuration of the reproduction data when reproducing the recorded data recorded on the rewritable recording medium Since the menu data for the menu screen can be generated to select the playback order, and the recorded data can be selected and reproduced according to the user's taste by using the generated menu data, it is possible to eliminate time consumption caused by the user's cumbersome search process. It is a useful and convenient invention.

1 is a view for explaining a method of generating a recording assembly VOB of a video recorded on a recording medium, reproduction information VOBI of the recording assembly, and reproduction order information Cell of the recording assembly;

2 is a view for explaining a method of generating menu data according to the present invention;

FIG. 3 is a diagram showing a recording and storage format of data necessary for configuring the menu screen of FIG. 2;

4 is a view for explaining a method of generating reproduction order information using menu data according to the present invention;

5A and 5B are diagrams showing a data format of reproduction order information for a recording assembly and a menu data unit of an image recorded according to the present invention;

FIG. 6 is a diagram illustrating a configuration of a recording / reproducing apparatus of a rewritable recording medium to which a method of generating reproduction order information and a method of reproducing data using menu data according to the present invention can be applied.

7 is a flowchart illustrating an embodiment of a method of generating reproduction order information using menu data according to the present invention.

8 is a flowchart illustrating an embodiment of a data reproducing method using menu data according to the present invention.

※ Explanation of code for main part of drawing

10: optical pickup (pick-up) 20: analog signal processing unit

30: digital signal processing unit 40: A / V processing unit

50: control unit M1 to M3: memory

OD: Awesome Record Media

Claims (5)

In the method of generating data reproduction order information of a recording medium, A first step of generating a menu data unit by selecting a representative image from among recording assemblies of an image recorded on the recording medium; And And generating a reproduction order information of the menu data unit and recording the reproduction order information in the reproduction order information aggregate, and recording attribute information in the reproduction order information to indicate that the reproduction order information of the menu data. Method for generating data reproduction order information using the menu data characterized in that. The method of claim 1, The first step, Generating a higher menu data unit by selecting a representative image from recording assemblies of an image recorded on the recording medium; And Selecting at least one representative image from among recording assemblies of an image recorded on the recording medium to generate at least one lower menu data unit and associating the upper menu data unit with data using the menu data; How to create play order information. The method of claim 1, And the reproduction order information for the menu data unit has a specified value of an attribute that is distinguished from the attribute of the reproduction order information for other types of recording aggregates. In the recording data reproduction method of a recording medium, A first step of sequentially reading the reproduction order information of the reproduction order information collection designated by the user upon a reproduction request; A second step of confirming an attribute of the read order information; and And if the checked attribute is the reproduction order information of the menu data, a third step of reproducing the menu data unit constructed by using the representative image taken from the recording aggregates of the video data. How to play data. The method of claim 4, wherein Confirming the reproduction request of the menu data unit corresponding to each representative image when the menu data unit of the third step is played back; And And reproducing the requested record data upon confirmation of the request.