KR100582499B1 - How to display the playlist screen - Google Patents

Abstract

The present invention relates to a method of displaying a playlist screen for a program stored on a recording medium such as a digital video disc. The method of the present invention is based on the priority of the playlist in the playback mode of the playlist by the user (e.g., By configuring the playlist menu screen in the order of the playlists with the highest number of playlists, or the most recent final playback time, and the most recent creation time. You can find the playlist you want on the menu screen and play it back. In addition, the present invention can set the quick play flag to a predetermined playlist in order to allow the user to play quickly without configuring a menu screen, so that the playlist can be immediately played upon a quick play request of the user.

Description

How to display the playlist screen

The present invention generates a playback order at the request of a user for a program stored on a recording medium such as a digital video disc, assigns a display order to the menu screen of the created playlists according to the user's preference, and also the user's preference. The present invention relates to a playlist screen display method and a playback method for allowing a playlist having the highest playlist to be played back immediately without displaying the playlist selection screen.

In the conventional analog television broadcasting, a video signal to be transmitted is modulated by AM or FM and transmitted through radio waves or cables. Recently, with the development of digital technologies such as digital image compression and digital modulation and demodulation, the standardization of digital television broadcasting is advancing at a rapid pace, and digitalization based on MPEG (Moving Picture Experts Group) is also used in conventional terrestrial, satellite, and cable broadcasting. Doing.

According to the development of digital video / audio compression technology and digital transmission technology, the digital broadcasting can provide higher quality service than analog service, and can transmit a plurality of programs in the same bandwidth, and with digital communication media and digital storage media. It has the advantage of increasing interoperability.

In such a digital broadcast, a plurality of broadcast programs encoded on the basis of MPEG are multiplexed and transmitted in the form of a transport stream. The transport stream is received in a set top box installed on the receiving side, and the transport stream is transmitted. A plurality of programs included in the demultiplexed program are selected, and only one desired program is selected, and the original audio and video signals are decoded by a decoder built in the set-top box for the selected program, and the A / V output device such as a television Will be sent to.

In addition to receiving such digital broadcast signals and outputting them to an A / V output device such as a television, a research into a system for storing, editing, and reproducing the received broadcast signals in a storage medium has been conducted. After receiving the digital data stream from the set-top box, and storing it in a streamer such as a digital video disc (DVD) recorder through a communication interface such as an IEEE-1394 serial bus, and storing the stored digital data stream. Research into a system that can reproduce digital audio and video through an AV output device such as a television by editing and reproducing and transmitting the communication interface to a set-top box via a medium is in progress.

In the above system, after storing a broadcast program on a recording medium, the playback sequence can be edited in various forms at the request of a user. The number of playlists, which are the edited sequence information, is Up to tens (eg 99) can be generated. In the playback mode, all the playlists generated as described above are displayed on the screen so that the user can select and play a desired playlist. Here, when the generated playlists are so large that they cannot be displayed on one screen, a plurality of playlist display screens may be configured, and the user may select a desired playlist while moving the playlist display screen.

By the way, when dozens of playlists are generated, for example, a problem arises in that a user takes a long time to search for a desired playlist while moving the playlist display screen. Therefore, there is a demand for technology development on a method of effectively selecting and playing a playlist.

Accordingly, the present invention was created to solve the above problems, and generates a playback order at the request of a user for a program stored on a recording medium such as a digital video disc, and prioritizes the playlist in the play mode of the playlist. An object of the present invention is to provide a method of displaying a playlist screen constituting a playlist menu screen according to the ranking.

Another object of the present invention is to provide a playlist reproducing method which enables the user to directly play the playlist having the highest user preference without displaying the playlist selection screen.

The playlist screen display method according to the present invention for achieving the above object is generated in the screen display method of the list for at least one playlist in order to specify the reproduction order of the data recorded on the recording medium; Recording menu screen display priority information generated for at least one of each playlist; Reading priority information of each recorded playlist; Determining a priority on a menu screen by comparing the read priority information; And displaying the playlist list generated according to the determined display order.

Hereinafter, preferred embodiments of the playlist screen display and playback method according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 schematically illustrates an example of a system to which a playlist screen display and playback method according to the present invention may be applied. The system includes a set-top box 100, a communication interface (IEEE 1394), and a streamer; 200).

The set-top box 100 receives and demultiplexes a transport stream multiplexed by a system encoder multiplexed from a broadcasting station, and is tuned by the tuner processor 110 by the controller 140 according to a user's request. The transport stream for the program is decoded by the system decoder 120 and output through an AV set such as a television, or transmitted to the streamer 200 through a communication interface (IEEE 1394) to store the selected transport stream.

In the set-top box 100, the decoder 120 decodes the electronic program guide (EGG) information included in a specific region within a transport stream for the program tuned by the channel selection processing unit 110 and controls the decoder 120. As transferred to 140, the controller 140 stores the electronic program guide information in the program guide area M1 of the memory 150. Here, the program information for all the programs of all the received channels is recorded in the electronic program guide information, and the electronic program guide information is distributed and recorded in the header portion of the transport stream to receive the entire electronic program guide information. Depending on the number of channels being serviced, it will take approximately 1 to 2 hours.

The electronic program guide information includes a transmission channel number, a channel name, a program name, a schedule, program category information of each program, attribute information of a stream constituting each program, and a viewer rating of each program.

In the set-top box 100, the control unit 140 forms a program table having a time axis and a channel axis by using electronic program guide information stored in the electronic program guide area M1 of the memory 150 at the request of a user. Control to display on the screen.

In addition, the set-top box 100 transmits the program tuned at the request of the user to the streamer 200 via the IEEE1394 communication interface 130, 140, and transmits the program by the streamer 200 to the digital video disc (DVD). It can be recorded on the recording medium 230, such as). In addition, the set-top box 100 receives a program read from the recording medium 230 by the streamer 200 according to the user's request via the IEEE1394 communication interface (140,130) to decode the decoder 120 The program can be reproduced by outputting to a television set.

As described above, the set-top box 100 and the streamer 200 need to know management control information of the programs recorded on the recording medium in order to play respective roles in recording and reproducing the programs. Therefore, in the above system, a file for recording program management control information used only by the set-top box 100 (hereinafter, referred to as an "application management information file") and a record program management control information used by the streamer 200 only. The programs recorded on the recording medium are managed by separating them into a file (hereinafter referred to as a "streamer management information file"), and these files are recorded on the recording medium 230 of the streamer 200. It is preferable.

The application management information file is read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200 and transmitted to the set-top box 100 via the IEEE 1394 communication interface. And stored in the management information area M2 of the memory 150 by the control unit 140 of the set-top box 100, and then management information about the newly recorded program at the time of recording the program by the user's request. Is added and updated). In addition, when the recording program is reproduced by the user's request, the controller 140 makes a request for playback to the streamer 200 by using the management information of the application management information file. The application management information file stored in the memory 150 is read at the end of the recording operation or the power-off operation of the set-top box and transmitted to the streamer 200 through a communication interface to control the controller 250 of the streamer 200. Is recorded on the recording medium 230 by the storage stream processor 220 under the control of the "

The streamer management information file is read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200, and is controlled by the controller 250 of the streamer 200. After being stored in the memory 260, management information for a newly recorded program at the time of recording a program by a user request is added and updated by the controller 250. In addition, when the recording program is reproduced by the user's request, the control unit 250 reproduces the program stored in the recording medium 230 by using the management information of the streamer management information file according to the request signal from the set-top box 100. Will be performed. The streamer management information file stored in the memory 260 is read at the end of the recording operation of the streamer 200 or at the time of turning on / off the recording medium, and is recorded by the storage stream processing unit 220 under the control of the controller 250. Is recorded on 230.

Next, the configuration of the application management information file generated by the playlist screen display and playback method according to an embodiment of the present invention will be described.

As shown in FIG. 2, an application manager information (AMI), a program stream information table (PSIT), and a user-defined program chain (PGC) information table are illustrated in FIG. 2. (UD_PGCIT; also referred to as " user-defined reproduction order information aggregation table "), GUI information table (GUIIT), and text data manager table (TXT_DT_MGT).

The application manager information (AMI) is an application manager information management table (AMIMT) in which an identification code for identifying application management information, a final address of the application management information, and a final address of the application manager information are recorded as shown in FIG. And a playlist search pointer table PL_SRPT, and the playlist search pointer table PL_SRPT includes playlist search pointer table information PL_SRPTI and a plurality of playlist search pointers # 1 to n (PL_SRP # 1 to n). It consists of.

The playlist search pointer table information PL_SRPTI may be composed of the number of playlist search pointers PL_SRP_Ns and the final address of the playlist search pointer table PL_SRPT, as shown in FIG. 3A.

Each of the playlist search pointers PL_SRP # i is assigned to a playlist type PL_TY for indicating whether the playlist is generated automatically or by user selection, as shown in FIG. 3B. User preferences (User_Pre) to indicate the user's preferences for the user, playlist categories (PL_CAT) to indicate whether the category of the program constituting the playlist belongs to, for example, movies / dramas, news, entertainment, etc., and corresponding playlists. A user-defined PGC number for displaying the corresponding user-defined PGC (playback order information collection) number, a final play time (PL_LAST_PB_TM) for displaying the time when the corresponding play list was last played, It may be configured to include a generation time (PL_CREATE_TM) for displaying the time.

An embodiment of the user preference (User_Pre) is composed of a 4-bit playlist preference (User_Pre) field, as shown in Figure 4a, when configuring the playlist menu screen according to the playlist preference of the playlist menu It can be used to determine the display order. The playlist preference is preferably the number of plays of the playlist.

Another embodiment of the user preference User_Pre includes a 1-bit default flag DE_FL and a 4-bit playlist preference User_Pre field as shown in FIG. 4B.

The default flag DE_FL enables the user to play the playlist without displaying the playlist menu on the screen. For example, if the user wants to play a predetermined playlist immediately without using the menu screen, the playlist. The default flag DE_FL is set to " 1 ", and when the user configures a playlist menu screen according to the priority of a predetermined playlist and uses the menu screen to play a desired playlist, the playlist The default flag DE_FL is set to "0". Therefore, when the user presses the quick start play key, the playlist in which the default flag DE_FL is set to "1" is searched for, and the searched playlist is played. The playlist preference (User_Pre) field is needed to perform the same function as the playlist preference (User_Pre) of FIG. 4A.

As shown in FIG. 5, the user-defined PGC information table (UD_PGCIT) includes a number of user-defined PGC search pointers and a final address of the user-defined PGC information table (UD_PGCIT). User-defined PGC information table information (UD_PGCTI), a number of user-defined PGC search pointers (UD_PGC_SRP # 1 to #n) indicating the start address of the user-defined PGC information, and playback order information of the record collection included in the user-defined PGC. and a plurality of user-defined PGC information (UD_PGCI # 1 to #n) in which (cell information; CIs) are recorded, wherein each of the user-defined PGC information (UD_PGCI # i) is recorded set reproduction order information (CI). User-defined PGC general information (UD_PGC_GI) in which the number of pieces of data, etc. are recorded, and a plurality of recording set reproduction order information CI # 1 to n.

The program stream information table (PSIT) (also referred to as "program stream reproduction management information") is composed of program stream information table information (PSIGI) and a plurality of program stream information (PSI # 1 to n) as shown in FIG. do.

One embodiment of the program stream information table information PSIGI includes the number of program stream information PSI_Ns and the final address PSI_EA of the program stream information table PSIT, as shown in FIG. 7A.

Each program stream information PSI # i includes a service type SV_TY for displaying a service content of a video, audio, text, etc., as shown in FIG. 7B, and as shown in FIG. Stream attribute information (ST_CON & CP_TY) for displaying the attribute information (stream_content, component_type) for the stream constituting the program, the program viewing rating information (PRT_RATING) and the program name (PG_NM) can be configured.

The streamer management information file applied in the automatic playlist generation method may include an original PGC information table (ORG_PGCIT) as shown in FIG. The original PGC information table (ORG_PGCIT) is the original PGC general information (ORG_PGCITI) in which the final address of the original PGC information table (ORG_PGCIT), etc. are recorded, and the number of recording set reproduction order information (cells). ORG_PGC_GI) and a plurality of recording set reproduction order information (CI # 1 to n).

Next, when recording the programs tuned in the set-top box 100 on the recording medium of the streamer 200 in the above-configured system, an embodiment of the playlist screen display and playback method according to the present invention. This will be described with reference to FIGS. 9 to 11.

First, the application management information file and the streamer management information file are read by the read stream processor 240 of the set-top box 200 at the initial operation of the set-top box 100 and the streamer 200, The application management information file is transmitted to the set-top box 100 via the IEEE 1394 communication interface, and is stored in the management information area M2 of the memory 150 by the control unit 140 of the set-top box 100, and streamer management information. The file is stored in the memory 260 by the controller 250 of the streamer 200.

In the initial operation state as described above, a recording mode for recording a program program on a recording medium 230 by the streamer 200 is tuned to a predetermined program channel by a user request and received through the tuned channel. When set (step S11), the control unit 140 controls to transmit the received and inputted program to the streamer 200 via the IEEE1394 communication interface (130, 210) and the control unit of the streamer (200). The control signal of the streamer 250 is transmitted to the recording control signal via the IEEE 1394 communication interface 130, 210, and the recording control signal transmitted from the control part 140 of the set-top box 100 is transmitted to the recording control signal. Recognizing and controlling the storage stream processing unit 220 controls to record the transferred program on the recording medium 230 (step S13). Hereinafter, it is assumed that programs PG # 1 to PG # 10 are sequentially recorded on the recording medium 230 as shown in FIG.

Thereafter, the control unit 140 of the set-top box 100 checks whether or not a play list generation request for setting a playback order for broadcast programs stored on the recording medium 230 is made at the user's request (step S15). If a playlist creation request has not been made, the process returns to the above step S13 to continuously perform the recording operation of the received broadcast program.

On the other hand, if it is confirmed in step S15 that a playlist generation request has been made (at this time, the programs PG # 1 to PG # 10 are sequentially recorded on the recording medium 230 as shown in FIG. 9). Assume that, when the program PG # 1, PG # 3 is selected by the user as shown in FIG. 9, the control unit 140 of the set-top box 100 is a user-defined program chain that is a playlist for each selected program set. (User defined reproduction sequence information collection; UD_PGC # 1) is generated (step S17), and the reproduction as shown in FIG. 3B is executed in the playlist search pointer PL_SRP # 1 (see FIG. 2) corresponding to the playlist information. In the list generation time field PL_CREATE_TM, the year, month, day, hour, minute, and second are recorded using 5 bytes of the time when the playlist is generated (step S19).

Thereafter, the control unit 140 of the set-top box 100 confirms whether the play list generation request is terminated (step S21). If the play list generation request is not finished, the control unit 140 returns to step S17 described above, As shown in Fig. 9, when the programs PG # 2 and PG # 4 are selected, a user-defined program chain UD_PGC # 2, which is a playlist for each selected program set, is generated (step S17), and as information on the playlist. Record the year, month, day, hour, minute, and second of the time when the playlist was created in the playlist creation time field (PL_CREATE_TM) of the corresponding playlist search pointer (PL_SRP # 2; see FIG. 2) using 5 bytes. (Step S19).

The control unit 140 of the set-top box 100 repeats the steps S17 and S19 until the play list generation request ends. Here, the above-mentioned playlist generation operation and the playlist generation time recording operation of the playlist search pointer are repeatedly performed for the user-defined program chains UD_PGC # 3 to 8 to thereby correspond to the playlist search pointers PL_SRP # 3 to 8. ), It is assumed that the creation time PL_CREATE_TM of the corresponding playlist is recorded respectively.

Subsequently, when the playback mode is set by the user's request (step S23), the control unit 140 of the set-top box 100 checks this, and then uses the playlist search pointers PL_SRP # 1 to 8 shown in FIG. By searching (step S25), the playlist creation time is confirmed from each playlist creation time field PL_CREATE_TM, and the playlist menu is displayed on the display screen in the order of the most recently created playlist (step S27).

In this case, assuming that eight playlists are generated and only four playlist menus can be displayed on one screen, as shown in FIGS. 10A and 10B, the menus for the generated playlists are displayed on two screens. The screen can be configured. Here, the playlist menus (PL # 1, PL # 2, PL # 3, ..., PL # 8) are (UD_PGC # 8, ... UD_PGC #) of the user-defined program chain corresponding to the reverse order of the playlist generated in FIG. 3, UD_PGC # 2 and UD_PGC # 1).

When the predetermined playlist menu is selected by the user while the playlist menu screen is configured as described above, the control unit 140 of the set-top box 100 provides information on the corresponding playlist to the communication interface 130 or 210. As previously transmitted to the control unit 250 of the streamer 200, the control unit 250 of the streamer 200 controls the read stream processing unit 240 to store previously stored programs corresponding to the playlist requested by the user. By sequentially reading out, the playback operation of the selected playlist is performed (step S29).

As described above, according to the exemplary embodiment of the present invention, the playlist menu screen is configured in order of the most recently created playlist. Therefore, in general, the user tends to play a recently recorded playlist rather than an old playlist, so in this case, the user can find and play a desired playlist on the first menu screen without page shifting. .

Next, another embodiment of the playlist screen display and playback method according to the present invention when recording the programs tuned in the set-top box 100 on the recording medium of the streamer 200 in the system configured as described above. This will be described with reference to FIG. 12.

Here, suppose that a plurality of programs are recorded on the recording medium and a plurality of playlists are generated for the recorded programs by the recording operation and the playlist generation operation of the broadcast program as shown in the flow of FIG. In addition, the playlist search pointer PL_SRP # i corresponding to the playlist information is used to display the most recently played time of the playlist in the playlist last play time field PL_LAST_PB_TM as shown in FIG. 3B. It is assumed that five bytes are used to record the year, month, day, hour, minute, and second.

When the playback mode is set at the user's request (step S31), the control unit 140 of the set-top box 100 checks this, and then searches the playlist search pointers PL_SRP # 1 to 8 shown in FIG. (Step S33), the playlist final playback time is checked from each playlist final playback time field PL_LAST_PB_TM, and the playlist menu is displayed on the display screen in the order of the most recently played playlist (step S35).

When the predetermined playlist menu is selected by the user in the state where the playlist menu screen is configured as described above, the control unit 140 of the set-top box 100 mediates the information about the corresponding playlist through the communication interface 130 or 210. The controller 250 of the streamer 200 controls the read stream processor 240 to transmit a pre-stored program corresponding to the playlist requested by the user, as transferred to the controller 250 of the furnace streamer 200. By sequentially reading out, the playback operation of the selected playlist is performed (step S37).

Thereafter, the control unit 140 of the set-top box 100 searches for the playlist search pointer PL_SRP # i for the playlist currently being played and the playlist last playback time of the searched playlist search pointer PL_SRP # i. In the field PL_LAST_PB_TM, the reproduction start time is updated and recorded as month, day, hour, minute and second. For example, as shown in FIG. 10C, the most recently played playlist is displayed on the menu screen in the order of PL # 6, PL # 2, PL # 1, and PL # 4.

As described above, according to another exemplary embodiment of the present invention, the playlist menu screen is configured in order of the most recently played playlist. Therefore, in general, the user tends to play a recently played playlist rather than a previously played playlist. In this case, the user can find a desired playlist on the first menu screen without having to page through the menu screen. You can play.

Next, another embodiment of the playlist screen display and playback method according to the present invention when recording the programs tuned in the set-top box 100 on the recording medium of the streamer 200 in the system configured as described above This will be described with reference to FIG. 13.

Here, suppose that a plurality of programs are recorded on the recording medium and a plurality of playlists are generated for the recorded programs by the recording operation and the playlist generation operation of the broadcast program as shown in the flow of FIG. In addition, as a user preference field (User_Pre) as shown in FIG. 3B in the playlist search pointer PL_SRP # i corresponding as information about each playlist, as shown in FIG. 4A, a user preference of 4 bytes ( It is assumed that the number of playbacks for the playlist is recorded as User_Pre).

When the playback mode is set at the user's request (step S11), the control unit 140 of the set-top box 100 checks this, and then searches the playlist search pointers PL_SRP # 1 to 8 shown in FIG. (Step S43), the playlist reproduction count is confirmed as the user preference from each user preference field (User_Pre), and the playlist menu is displayed on the display screen in order of the most played playlist (step S45). For example, as shown in FIG. 10C, the most recently played playlist is displayed on the menu screen in the order of PL # 6, PL # 2, PL # 1, and PL # 4.

When the predetermined playlist menu is selected by the user in the state where the playlist menu screen is configured as described above, the control unit 140 of the set-top box 100 mediates the information about the corresponding playlist through the communication interface 130 or 210. The controller 250 of the streamer 200 controls the read stream processor 240 to transmit a pre-stored program corresponding to the playlist requested by the user, as transferred to the controller 250 of the furnace streamer 200. By sequentially reading out, the playback operation of the selected playlist is performed (step S47).

Thereafter, the control unit 140 of the set-top box 100 searches the playlist search pointer PL_SRP # i for the playlist currently being played and the user preference field User_Pre of the searched playlist search pointer PL_SRP # i. 1) is added to the number of playbacks recorded in "

As described above, according to another exemplary embodiment of the present invention, the playlist menu screen is configured in order of the most played playlist. Therefore, in general, the user tends to frequently play a playlist having a large number of times of play, and in this case, the user can find and play a desired playlist on the first menu screen without page shifting.

Next, another embodiment of the playlist screen display and playback method according to the present invention when recording the programs tuned in the set-top box 100 on the recording medium of the streamer 200 in the system configured as described above This will be described with reference to FIG. 14.

First, as shown in Fig. 9, the ten programs PG # 1 to PG # 10 are stored on the recording medium by the same operations as those in Steps S11 to S13 in Fig. 11 described above (Steps S51 and S53). .

Thereafter, when the controller 140 of the set-top box 100 confirms whether a request for generating a playlist for setting the playback order for the broadcast programs stored on the recording medium 230 is made by the user's request (step S55) (At this time, it is assumed that the programs PG # 1 to PG # 10 are sequentially recorded as shown in FIG. 9 on the recording medium 230.), the control unit 140 of the set-top box 100 plays a playlist. It enters into the generation operation of.

Subsequently, when the programs PG # 1 and PG # 3 are selected by the user as illustrated in FIG. 9, the control unit 140 of the set-top box 100 may include a user-defined program chain that is a playlist for each selected program set ( Create a user-defined play order information collection; UD_PGC # 1 and record the playlist creation time (PL_CREATE_TM) and the corresponding user-defined program chain number (UD_PGCN) in the playlist search pointer (PL_SRP # 1) (step 57). ), The default flag DE_FG as shown in FIG. 4B in the user preference field User_Pre as shown in FIG. 3B of the playlist search pointer PL_SRP # 1 (see FIG. 2) corresponding to the playlist information. As a result, it is checked whether or not the quick playback flag is set to "1" (whether the playlist can be played back immediately upon user request without configuring a menu screen) (step S59). For example, the user preference User_Pre shown in FIG. 4B is an area in which the number of reproductions is recorded. Here, the quick play flag can be set by selecting only one of all play lists, and it is assumed that the user sets the quick play flag for the user-defined program chain UD_PGC # 8, which is the eighth play list in FIG. 9.

As it is confirmed in step S59 that the quick play flag is not set, the control unit 140 repeatedly performs steps S57, S59, and S63, and the user-defined program chains UD_PGC # 3 to playlists which are requested by the user. 7) and the playlist creation time PL_CREATE_TM of the playlist search pointers PL_SRP # 2-7 and the corresponding user-defined program chain number UD_PGCN.

Subsequently, when a playlist generation request is made by the user request for the eighth playlist user-defined program chain UD_PGC # 8, the playlist generation time PL_CREATE_TM of the playlist search pointer PL_SRP # 8 and the corresponding user-defined program. The operation of recording the chain number UD_PGCN and the like, and as the user requests to set the quick play flag, a default flag in the user preference flag field User_Pre of the navigation pointer PL_SRP # 8 of the playlist in step S61. After setting the quick play flag to " 1 " as (DE_FG), the creation of the playlist is terminated at the user's request.

Subsequently, when the regeneration mode is set at the user's request (step S65), the control unit 140 of the set-top box 100 determines that the regeneration mode selected by the user is in the quick regeneration mode (without configuring a playlist menu screen). It is checked whether or not the flag is set to play the playlist set to " 1 " immediately (step S63).

If it is confirmed in step S63 that the mode is not the quick playback mode, the control unit 140 searches the playlist search pointers PL_SRP # 1 to 8 shown in Fig. 2 (step S69). Thereafter, the controller 140 configures a playlist menu screen in order of playlist according to priority (step S71).

In step S71, the priority is the order of the most recently played playlist according to the playlist last play time field (PL_LAST_PB_TM), or the order of the most recently played playlist according to the playlist creation time field (PL_CREATE_TM), or As the user preference recorded in the user preference field (User_Pre), the menu screens may be configured in ascending order of playback times.

Subsequently, when a playlist is selected by the user on the configured menu screen, the controller 140 controls the controller 140 of the set-top box 100 to provide information on the corresponding playlist via the communication interfaces 130 and 210. As transmitted to the controller 250 of the streamer 200, the controller 250 of the streamer 200 controls the read stream processor 240 to sequentially store pre-stored programs corresponding to the playlist requested by the user. By reading out, the playback operation of the selected playlist is performed (step S73).

Thereafter, the control unit 140 of the set-top box 100 searches for the playlist search pointer PL_SRP # i for the playlist currently being played and the playlist last playback time of the searched playlist search pointer PL_SRP # i. In the field PL_LAST_PB_TM, the playback start time is updated with month, day, hour, minute, and second, and " 1 " is recorded in the number of playbacks recorded in the user preference field User_Pre (see FIG. 4B) of the user preference field User_Pre. In addition, the number of times of reproduction is updated and recorded.

On the other hand, when it is determined in step S63 that the mode is not the quick play mode, the controller 140 searches for the playlist search pointers PL_SRP # 1 to 8 shown in FIG. 2, and the user preference flag field. In (User_Pre), the playlist in which the default flag DE_FG is set to "1" is detected (step S77). Here, the playlist search pointer PL_SRP # 8 is detected.

Thereafter, the controller 140 transmits information on the playlist corresponding to the detected playlist search pointer PL_SRP # 8 to the controller 250 of the streamer 200 via the communication interfaces 130 and 210. Accordingly, the control unit 250 of the streamer 200 controls the read stream processing unit 240 to sequentially read pre-stored programs corresponding to the playlist requested by the user, thereby performing a play operation of the selected playlist. (Step S79).

As described above, according to another embodiment of the present invention, when the user requests quick play while the quick play flag is set in a predetermined playlist in order to allow the user to play fast without configuring a menu screen, the play is performed. You can make the list play immediately. Also, in normal playback mode instead of requesting quick playback by the user, the priority set by default in the set-top box (for example, in order of the playlist with the greatest number of plays, or in the order of the latest last play time, By constructing a playlist menu screen in order of the most recent creation time, the user can, if possible, find and play a desired playlist on the first menu screen without page shifting.

On the other hand, in the above-described embodiment of FIG. 14, the quick play flag DE_FG is set during the creation and recording of the playlist to be quickly played by the user's request. However, in the present invention, the user specifies playback on the playlist menu screen. The quick play flag DE_FG may be set for the list.

In addition, in the above-described embodiment of FIG. 14, the quick play flag DE_FG is set as shown in FIG. 4B, and the play list can be played without the menu screen of the playlist. However, the present invention is limited thereto. Rather, when the user requests a quick play, the user can search for the playlist with the highest number of times to play the playlist quickly, or search for the most recently played playlist to play the playlist quickly, or The recently created playlist may be searched for to quickly play the playlist. In such a case, steps S59 and S61 of FIG. 14 are deleted, and in step S77, the playlist with the most playbacks is searched, the most recently played playlist is searched, or the most recently created playlist is searched. You can do that.

In addition, this invention is not limited to the system demonstrated with reference to FIG. The apparatus for performing the same function as the set-top box and the apparatus for performing the same function as the streamer are installed in one set, and digital broadcasting programs are also provided in a system configured to communicate with each other via an internal bus. When receiving and storing the present invention can be applied.

According to the playlist screen display and playback method according to the present invention as described above, according to the priority of the playlist in the playback mode of the playlist by the user (for example, in the order of the playlist having the most number of times, or By configuring the playlist menu screen in the order of the most recent last play time, and the most recent creation time, the user can find and play the desired playlist in the first menu screen without page shifting if possible. You can do that.

Further, according to the playlist screen display and playback method according to the present invention, if the user requests quick play while the quick play flag is set in a predetermined playlist so that the user can play quickly without configuring a menu screen, You can play the playlist immediately.

1 schematically illustrates a system to which a playlist display method according to the present invention can be applied;

FIG. 2 exemplarily illustrates an embodiment of an application management information file table for managing a playlist generated by the playlist display method according to the present invention;

FIG. 3A illustrates an example of a data format for the playlist search pointer table information shown in FIG. 2;

FIG. 3B shows an example of a data format for the playlist search pointer shown in FIG.

FIG. 4A illustrates a configuration example of the playlist user preference field of FIG. 3B;

4B illustrates another configuration example of the playlist user preference field of FIG. 3B.

FIG. 5 shows the configuration of the custom program chain information table shown in FIG.

FIG. 6 shows the structure of the program information table information shown in FIG.

FIG. 7A illustrates a data format of the program stream information table of FIG. 6,

FIG. 7B illustrates a data format for the program stream information of FIG. 6.

8 illustrates a configuration of an original program chain table generated as a moving picture is recorded on a recording medium by a streamer.

9 is a diagram schematically illustrating a process of generating an original program chain and a user-defined program chain when a broadcast program is recorded on a recording medium by a streamer.

10A to 10C illustrate examples of a playlist display screen for explaining a playlist screen display method according to the present invention;

11 is a flowchart showing an embodiment of a playlist screen display and playback method according to the present invention;

12 is a flowchart illustrating another embodiment of the playlist screen display and playback method according to the present invention;

Figure 13 shows a flow of another embodiment of a playlist screen display and playback method according to the present invention,

14 is a flowchart of another embodiment of a playlist screen display and playback method according to the present invention.

※ Explanation of code for main part of drawing

100: set-top box 110: station selection processing unit

120: decoder 130210: communication interface

140,250: control unit 150,260: memory

200: streamer 220: storage stream processing unit

230: recording medium (DVD) 240: read stream processing unit

Claims (2)

A method of displaying a list of playlists for specifying a data reproduction order of a recording medium, Recording priority information for first displaying at least one or more of the playlists on a menu screen in a playlist search pointer; Reading priority information recorded in the playlist search pointer; And displaying the playlist having the highest priority in the menu screen according to the read priority information. The method of claim 1, Wherein the priority information is information corresponding to at least one of a latest generation time order of a playlist, a latest playback time order of a playlist, or a maximum number of playback times of a playlist.